TW302310B - - Google Patents

Description

302SJ0 A7 B7_ V. Description of the invention (1) Technical field The present invention relates to a kind of continuous production of steel and other gold slabs that can obtain surface slabs without longitudinal cracks and other surface defects. Continuous casting method and device. BACKGROUND ART FIG. 1 is a cross-sectional view of a device used in the manufacture of conventional metal slabs. In FIG. 1, the molten metal 1 is injected into the mold 3 from the immersion nozzle 2, and the molten metal is gradually cooled from the wall surface of the cooled mold 3 to form a cooling shell, and the solidified shell is pumped. Pull to become a metal slab. Circle 2 refers to a plan view of the device of FIG. 1 looking down from the A-A plane. In FIG. 2, the immersion nozzle 2 is provided at the center of the mold horizontal plane, and the molten gold in the mold 1 is ejected from the nozzle port and flows as shown by the arrow in FIG. In the upper surface 5 of the metal, as shown by the solid arrows in FIGS. 1 and 2, a reverse flow from the short side 11 of the mold toward the immersion nozzle 2 is generated. ^ In the device used in the continuous yoke fabrication of the above-mentioned metal slabs, when the temperature of the molten metal at the same height of the mold wall surface is not uniform, the solidification is likely to produce longitudinal cracks. In order to prevent this longitudinal crack, as described in V / JP Patent Publication (Japanese Patent Laid-Open No. 1 2 2 8 6 4 5), the molten metal flows in the meniscus 5 and the electromagnetic stirring method is used as a concession Means when molten metal flows. FIG. 3 shows the electromagnetic stirring device described in the publication. The paper size of this manual is applicable to China National Standards (CNS) A4 (210X297mm) I ^ Today-Order ((Please read the notes on the back before filling this page) Printed by the Employees Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 302310 at ____B7_ Fifth, the electromagnetic stirring device of the invention (2), with the electromagnetic stirring coil parts 6 a and 6 b provided along the long sides 10 a and 10 b of the mold, to the molten metal in the mold 3 Provide the same electromagnetic stirring ability, so that the molten gold can produce a circulating flow along the wall of the mold. That is, the electromagnetic stir coil portion 6 a includes a plurality of magnetic cores 1 2 a and coils arranged along the long side 10 a of the mold The coil 1 4 a wound around the groove 1 3 a formed in the magnetic core 1 2 a is constructed in the same manner as the electromagnetic stirring coil portion 6 b. The coil 1 4 a and the coil 1 4 b are respectively connected via connecting wires as connection mechanisms The box 7 a and 7 b are connected to the 3-phase power supply 8. A typical example of this connection is shown in FIG. 3. The electromagnetic stirring thrust of the moving magnetic field method is applied to the meniscus 5 as shown by the arrow. Molten metal. The consumption of employees of the Central Bureau of Standards of the Ministry of Economic Affairs Printed by the company (please read the precautions on the back before filling in this page) In the conventional m magnetic stirring device shown in Figure 3, when the frequency of the 3-phase power supply 8 is set to 2 Hz, the current is set to 4 Ο Ο The thrust distribution in the meniscus at time A is shown in Figure 4. Figure 4 is represented by the commonly used electromagnetic field value analysis software, where the direction of the thrust in each field is indicated by the direction of the arrow, The length of the arrow indicates the magnitude of the thrust. It can be seen from FIG. 4 that the component of the longitudinal direction of the thrust along the long side 10 of the mold is almost constant at each position of the long side. As such, in the conventional metal In the in-mold electromagnetic stirring device during slab continuous setting, since the ® magnetic stirrer force is applied to the molten metal uniformly along the long side of the mold, the actual molten gold in the lunar surface is actually obtained. In the swirling flow of tungsten, the above-mentioned reversal flow and the electromagnetic stirring force will overlap, and as shown by the dotted arrow in FIG. 2, when it is from the short side 11 of the mold toward the dip nozzle 2, it is a strong swirling flow, and The size of the paper is applicable when the nozzle 2 faces the short side of the mold 11 National Standard Falcon (CNS) A4 specification (210X 297mm) 〇〇23l Ο a7 ____B7_ Fifth, the invention description (3), it becomes a weak swirling flow. On the other hand, it will float non-golden on the meniscus Intermediary objects or dust, therefore, when the rotating flow of molten metal produces precipitation, non-metallic intermediary objects or dust are sometimes piled in the Shendian part. These non-metallic intermediary objects or dust, When the molten gold is changed into a solid, bubbles such as C0 can be generated, and when the dust remains in the gold, it can cause cracking. Therefore, the conventional electromagnetic stirring device in the mold is Although it contributes to maintaining the uniform temperature of the molten gold on the wall surface of the mold with the same high degree, it is insufficient to prevent the longitudinal cracks in the solidified shell 4. Disclosure of the invention Beigong Consumer Cooperatives, Central Bureau of Standards, Ministry of Economic Affairs q (please read the notes on the back of Jing Jing before filling in this page) The main purpose of the present invention is to make continuous casting of gold slabs such as steel. Allow the molten metal in the mold to rotate in the same direction in the lunar surface, and keep the temperature of the molten metal on the mold wall at the same high temperature uniform, and keep the rotating flow of the molten metal uniform, which can prevent non-metallic substances Slabs that are involved in piles of dust or dust, and will not have surface defects such as longitudinal cracks (si ad). In order to achieve the above-mentioned object, the method for continuously producing metal slabs according to the first aspect of the present invention includes: the step of injecting molten metal into the mold from a dip nozzle provided at the central portion of the horizontal plane of the mold; At least 2 electromagnetic stirring gates provided on the long sides of the two molds, along the long sides of the above two molds, respectively, produce mutually inverse 1 applicable to the Chinese National Standard (〇yang) 4 specifications (210 to 297 mm ) 302310 at ___B7_ V. Description of the invention (4) The electromagnetic force is used to make the rotational flow of the surface layer of the molten metal in the above-mentioned mold almost the same, and the above-mentioned penetration force from the above-mentioned immersion nozzle toward the short side of the mold The steps and the steps of the components different from the components of the electromagnetic force from the short side of the mold toward the immersion nozzle; and the step of extracting the metal during solidification while cooling a part of the mold. In addition, according to the first aspect of the present invention, the continuous production of gold slabs is mainly based on the injection of molten gold into the mold from the side of the immersion nozzle provided at the center of the horizontal plane of the mold, and While cooling a part of the above-mentioned mold, and extracting the solidified metal, the continuous production of gold slabs of metal slabs is continuously performed. The device is characterized by: It is along two molds. It is installed on the long side, and uses electromagnetic force to control the flow of the molten gold nuggets in the mold. Each has a plurality of magnetic cores arranged along the long sides of the two molds, and is wound around Multiple coils of the above sulfur core; at least one power supply circuit for generating three-phase or more alternating current of a certain frequency; Printed by Beigong Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page) On the long sides of the two molds respectively, the two circuits composed of the coil and the connecting mechanism are point-symmetric with respect to the immersion nozzle, and the two circuits are divided into two circuit parts respectively, and the upper The connection mechanism for connecting the electromagnetic stirring coil part to the at least one power supply circuit. In addition, according to the second aspect of the present invention, the continuous production equipment for gold slabs mainly consists of injecting molten gold into the mold while injecting molten gold into the mold from an immersion nozzle provided at the center of the horizontal plane of the mold. A part of this paper scale is applied to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) A7 302310 B7 V. Description of the invention (5) Cooling, pulling the solidified metal and casting metal slab continuously, which The characteristics are: two electromagnetic stirring coil parts which are arranged along the long sides of the two molds and use electromagnetic force to control the flow of molten gold in the molds, respectively The m-magnetic stirring coil portion composed of a plurality of arranged magnetic cores and a plurality of coils wound around at least a part of the magnetic core respectively; and an energizing means for supplying current to the two electromagnetic stirring coil portions: inside and outside the mold The space is perpendicular to the plane of the long sides of the two molds by passing through the center of the dip nozzle and parallel to the plane of the long sides of the two molds and the center of the dip nozzle The virtual space is divided into a first space, a second space, a third space, and a fourth space, where the third space is located in a symmetrical position in the first space relative to the center of the immersion nozzle, and the fourth space is relative to The center of the above-mentioned immersion nozzle is located in a symmetrical position in the second space. The magnetic core in the first space and the magnetic core in the third space are more than the magnetic core in the second space and the fourth space. The core is long. Or it may include an energizing means for energizing the coils present in the first space and the coils present in the third space, so that the molten gold is driven along the direction of the mold edge, and the coils present in the second space and the second 4 The coil of the space is energized and the circuit is always energized or interrupts the above-mentioned alternating current. Furthermore, when one of the two mold long sides exists in the first space and the second space, and the other of the two mold long sides exists in the third space and the fourth space, then the above two One of the electromagnetic stirring coil parts only has a coil in the first space, and the above two paper sizes apply the Chinese National Standard (CNS) A4 specification (210X297 mm) (please read the precautions on the back before filling this page ) Printed by the Ministry of Economic Affairs, Central Standards Bureau, Employee Consumer Cooperative Printed by the Ministry of Economic Affairs, Central Bureau of Preservation, Beigong Consumer Cooperative 3 ϋ ^ 3 i Ο A7 __B7 _ V. Description of invention (6) The other of the electromagnetic stirring coil department, then Only the third space has a coil. In addition, according to the third aspect of the present invention, the continuous thin-rolling device for slabs of gold and slabs mainly consists of injecting molten gold and slabs into the mold while immersing molten gold in the immersion nozzle provided at the center of the horizontal plane of the mold. One part is cooled, and the solidified metal is drawn to continuously cast the metal slab, which is characterized in that it is arranged along the long sides of the two molds, and the flow of molten gold in the mold is controlled by electromagnetic force The two electromagnetic stirring coil parts, and the electromagnetic stirring coil part comprising a plurality of magnetic cores arranged along the long sides of the two molds and a plurality of coils respectively wound on the magnetic core: and the above Two energizing means for supplying current to the electromagnetic stirring coil section; flow rate detection means for detecting the flow rate of the surface layer of the molten metal at a plurality of positions on the upper surface of the molten metal in the mold: converting the detected continuity into a preset setting A flow velocity conversion means for each flow velocity component in a plurality of surface layer flow velocity distribution patterns; the converted flow velocity component is compared with each target value in each pattern to calculate Means for calculating the compensation amount of the flow velocity component deviation; inverse conversion means for inversely converting the flow velocity component deviation to the flow velocity deviation of the surface layer of molten gold at the plurality of positions; and controlling the energization means as such the flow velocity deviation becomes Means of control. According to the above-mentioned first aspect of the present invention, the continuous casting method or device of the gold slab is adjusted by the electromagnetic stirring produced by the two electromagnetic stirring coils. The paper size is adapted to the Chinese National Standard (CNS) Λ4 specification (210X297 Cli) (Please read the notes on the back before filling this page)

A7 Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs B7 V. Description of the invention (7) The distribution of mixing force allows the same rotational force along the mold to be added to the molten metal in the «moon surface. In addition, according to the second aspect of the present invention, the continuous casting apparatus for metal slabs can simplify the electromagnetic stir coil portion and make it smaller. In addition, according to the continuous casting apparatus for metal slabs according to the third aspect of the present invention, it is easy to design, change, and adjust the flow velocity distribution of molten metal. A brief description of the round surface: Figure 1 is an explanatory diagram showing the situation in the mold made by the conventional practice. Figure 2 shows the line A-A of Figure 1. Fig. 3 is a cross-sectional view and a circuit diagram of a conventional device example. Fig. 4 shows the distribution diagram of the electromagnetic stirring force of the conventional equipment. FIG. 5 is an explanatory diagram showing the first embodiment of the present invention. 6 is a cross-sectional view and a circuit diagram of the first embodiment of the present invention. FIG. 7 is a circuit diagram shown in FIG. 6. Fig. 8 is a cross-sectional view and a circuit diagram of another device according to the first embodiment of the present invention. 9 is a cross-sectional view and a circuit diagram of another device according to the first embodiment of the present invention. Fig. 1 shows the distribution of the electromagnetic stirring thrust in Conventional Example 2. Fig. 11 shows the distribution of the electromagnetic stirring thrust in Example 1 of the present invention.圚 12 represents the distribution of the electromagnetic stirring thrust in Example 1 of the present invention. Circle 13 shows the distribution diagram of the electromagnetic stirring thrust in Example 2 of the present invention. 4 is the description of the distribution of the electromagnetic stirring thrust of Example 2 of the present invention -10-This paper scale is applicable to the Chinese National Standard (CNS) Α4 specification (210X297 mm) (please read the precautions on the back and fill in this page). 302310 B7 V. Description of the invention (8) Figure. (Please read the precautions on the back before filling in this page) FIG. 15 is an explanatory diagram showing the device of the second embodiment of the present invention. Fig. 16 is an illustration of other devices of the second embodiment of the present invention. Fig. 17 is a connection diagram of m circuits of power supplies used in the device of the second embodiment of the present invention. Fig. 18 is an explanatory diagram showing the effect of the second embodiment of the present invention. Fig. 19 is an explanatory diagram showing the effect of the second embodiment of the present invention. Fig. 20 is an explanatory diagram showing the function of the device of the second embodiment of the present invention. Fig. 0 Fig. 21 is an explanatory diagram showing the distribution of the electromagnetic stirring thrust in the second embodiment of the present invention. Fig. 22 is an explanatory diagram showing the distribution of the electromagnetic stirring thrust according to the second embodiment of the present invention. Fig. 23 is an explanatory diagram showing the distribution of the electromagnetic stirring thrust according to the second embodiment of the present invention. Printed by Beigong Consumer Cooperative, Central Bureau of Standards, Ministry of Economic Affairs. Figure 24 is an explanatory diagram showing the distribution of the electromagnetic stirring thrust according to the second embodiment of the present invention. Fig. 25 is an explanatory diagram showing the distribution of the electromagnetic stirring thrust in the second embodiment of the present invention. Figure 26 shows the distribution of electromagnetic stirring thrust BH in the second embodiment of the present invention. Fig. 27 is a perspective view showing the appearance and central longitudinal section of the third embodiment of the present invention. This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210X297mm) 11 B7 V. Description of invention (9) Close 2 8 series table cut in the horizontal direction of the magnetic core shown in Figure 2 7 1 7 F '1 7 L The enlarged cross-sectional area.阃 2 9 is the enlarged cross-sectional view of line B-B in Figure 28. Fig. 3 is an electrical circuit diagram showing the connection of the electric coil shown in Fig. 28. Fig. 3 1 is the electrical circuit diagram of the first group of electric motors "line_applied with 3-phase AC voltage of the linear motors shown in Fig. 28". Fig. 32 is an electrical circuit diagram of a power supply circuit in which the electric coil of the third group of each linear motor shown in Fig. 28 is applied with a 3-phase AC voltage. Fig. 3 is a graph showing the relationship between the number of poles of a linear motor and the frequency of applied AC and electromagnetic force. Figure 3 is a plan view showing the distribution of electromagnetic force generated by two 2-pole linear motors. Figure 35 is a plan view showing the distribution of electromagnetic force generated by two 4-pole linear motors. Fig. 3 is a plan view showing the distribution of electromagnetic force generated by two 6-pole linear motors. Printed by the Beigong Consumer Cooperative of the Central Standard Falcon Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling in this page). Figure 3 is a flat graph showing the distribution of electromagnetic force generated by two 12-pole linear motors. Fig. 38 is a plan view showing the distribution of the electromagnetic force when two 4-pole linear motors are applied with 1.8 Hz 3-phase AC. Figure 3 9 is a plan view showing the electromagnetic force distribution when two 4-pole linear motors are applied with 3 Hz AC at 3 Hz. Figure 4 0 series table is based on two 4-pole linear motors plus 5 Hz, 3-phase paper. The paper standard is applicable to China National Standard (CNS) Λ4 specification (210X297 mm). The A7 B7__ is printed by Beigong Consumer Cooperative, Central Bureau of Standards, Ministry of Economy DESCRIPTION OF THE INVENTION (10) A plan view of the distribution of the m magnetic force that occurs during AC. Fig. 4 1 is a plane diagram showing the distribution of electromagnetic force that occurs when two 4-pole linear motors are added to a 3-phase AC at 10 Hz. Fig. 4 2 is a plan view showing the electromagnetic force distribution when two 4-pole linear motors are applied with 3 Hz AC at 20 Hz.

Fig. 43 (A) is a cross-sectional view of molten steel in a noodle mold. Circle 43 (B) is a plan view of the surface laminar flow of the meniscus of molten steel in a mold. Fig. 44 is an electrical circuit diagram showing a power circuit of a first group of electric coils of a linear motor 6 F in a continuous casting equipment S of a fourth embodiment of the present invention, which is applied with a three-phase AC voltage. Fig. 4-5 shows the electrical circuit diagram of the electric circuit of the second group of the linear motor 6 F plus the 3-phase AC power circuit. Fig. 4 shows the electrical circuit diagram of the power circuit of the second time group of the linear motor 6 L plus the 3-phase AC power supply circuit. Fig. 4 shows the electrical circuit of the three-phase alternating current power supply circuit and the inner air coil of the first time group of the linear motor 6 L. Fig. 4 shows the short sides of the casting mold 1 1 L, the back of the 1 1 R, and the block of the electrical circuit connected to these thermocouples. Fig. 4 is a block diagram showing the back of the long side 10 F and 10 L of the casting die and the cyanide circuit connected to these thermocouples. Fig. 50 is a block diagram showing the output of the computer 6 3 shown in Fig. 48 and Fig. 49. Figure 51 (A) shows the paper standard of the linear motor according to the fourth embodiment of the present invention is applicable to the Chinese National Standard (CNS) Α4 specification (210X297 mm) 13 -V -I (Please read the precautions on the back before filling in This page),? Τ 302S10 A7 B7 V. Description of the invention (u) ® Plan view of the direction of the magnetic force. Fig. 5 1 (B) is a plan view showing the difference in the intensity of the surface laminar flow caused by the bias flow of the injection flow. Figure 5 1 (C) is for table use (please read the precautions on the back before filling in this education) to suppress the intensity difference of Figure 5 1 (B) and the plan view of the electromagnetic force generated by the linear motor. Fig. 52 is a horizontal sectional view showing the phase division of the electric coil of the linear motor according to the fourth embodiment of the present invention. Fig. 53 is a block diagram showing the content of calculation processing of the computer 43 in the fourth embodiment of the present invention. The circle 54 is an enlarged cross-sectional view of the core body 1 2 F, 1 2 L in the continuous production system of the fifth embodiment of the present invention cut horizontally. Fig. 55 is an electric circuit diagram showing the wiring of the electric coil in the continuous binding device of the fifth embodiment of the present invention. Fig. 5 6 (A) is an enlarged plan view of a portion surrounded by a dotted line 3C shown in Fig. 54, and Fig. 5 6 (B) is an enlarged plan view of a portion surrounded by a dotted line 3D shown in Fig. 5 4. Fig. 57 is a plane diagram showing the electromagnetic distribution generated by the two 2-pole linear motors using the slot of the first aspect of this embodiment. Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy. Figure 58 shows a plan view of the electromagnetic distribution generated by two 2-pole linear motors using the slot of the second aspect of this embodiment. Fig. 59 shows an enlarged cross-sectional view of the core body 1 2 F, 1 2 L with the second aspect cut in the horizontal direction.

Fig. 6 Ο A is a block diagram showing the connection relationship between the linear motor of the third aspect of this embodiment and the 氤 源 氆 路, and FIG. 60 (B) is the composition of the power supply circuit VD shown in FIG. 60 (A 0) The electrical circuit of this paper is based on the Chinese National Standard (CNS) A4 specification (210X 297 mm) -14-302310 A7 B7 V. Description of the invention (12) Figure 6 1 A series of meniscus of molten metal in the mold Inside, a half-surface view of the surface laminar flow produced by injecting molten gold from the injection nozzle. The circle 6 1 B · system table shows the plane flow of the surface laminar flow caused by two linear motors with a dotted arrow. The solid arrows indicate the vector and plan views of the surface laminar flow generated by the injection of molten gold from the nozzle and the surface laminar flow generated by the thrust of the two linear motors. Fig. 6 2 is a longitudinal sectional view of the A-type watch mold 3, a tundish 80 to which molten metal is supplied, and a pot portion 79 to which molten metal is supplied. Qi 6 2B is the change in the flow rate of the mold during the period from the beginning to the end of continuous casting. Fig. 6 is an enlarged cross-sectional view of the core 1 2 F and 1 2 L cut horizontally. Fig. 6 4 shows the phase and group discrimination of the electrical coils shown in Fig. 63. Fig. 65 is a diagram showing the electrical circuit of the wiring of the electrical coil shown in Fig. 63. Printed by Beigong Consumer Cooperative, Central Bureau of Standards, Ministry of Economic Affairs. Figure 6 is a block diagram showing the outline of the configuration of the device of the sixth embodiment of the present invention. Fig. 67 is a block diagram showing the outline of the configuration of the control system for controlling the power supply circuits 30a to 30d shown in Fig. 66. The circle 6 8 is a block diagram showing the configuration of the source circuit 9 2 a shown in FIG. 6 7 and the circuit controller C C 1.

Fig. 6 9 is an enlarged side view showing the flow rate detector 9 1 a shown in Fig. 6 3 by cutting the outer shell. Figure 69 (B) is table 69 (A The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) ^^ 1 · I 11 ^^ 1 · ml 1 ^ 1 _ · ν ^ H ml ( Please read the precautions on the back before filling in this page) -15-302310__b7_ V. Description of invention (13)) E_E line cross-section. Fig. 7A is a cross-sectional view showing the use state of the flow velocity detector 9 1 a of Fig. 6 9A and 6 9 B. Fig. 70 B is a block diagram of circuit elements that generate a flow velocity signal based on the detection signal of the flow velocity detector 9 1 a in the flow velocity detection circuit 9 8 a shown in Figs. 6 and 6. Fig. 7 1 Plan view of the surface flow in the meniscus of the molten gold in the A-series watch mold, Fig. 7 1 B-series table Fig. 7 1 The enlarged cross-sectional view of the F-F line of the A-series, Fig. 7 1C series table 7 1 Enlarged cross-sectional view of G—G line of A.圚 7 2 A ~ 7 2 D is a plan view of the components of the surface flow direction of the meniscus melting in the mold, Figure 7 2 A shows the stirring mode components, Figure 7 2 B shows the incoming mode components, 圔 7 2 The C-mode acceleration mode component, Figure 7 2D table torsion mode component. Fig. 7 3 is a block diagram showing the outline of a part of the data processing of the CPU 9 8 C shown in Fig. 6 and 6. Best form for carrying out the invention Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the precautions on the back before filling in this page) Please refer to FIG. 5 to explain the first embodiment of the present invention. Fig. 5 is a table showing the continuous performance of the slab of Yinjinyu which is the object of the present invention from the meniscus. The molten gold is injected from the immersion nozzle 2 provided in the center of the cross-section of the mold 3 having a substantially rectangular cross-section. Electromagnetic stirring coil parts 6 a and 6 b are provided along the long sides 10 a and 10 b of the mold. According to the present invention, by adjusting the distribution of the electromagnetic stirring thrust generated by the electromagnetic stirring coil portions 6a and 6b, the molten metal in the meniscus 5 can be provided with the same rotational flow along the mold. The paper size is applicable to the Chinese National Standard (CNS) A4 (210X 297mm) 16-Printed by the Ministry of Economic Affairs, Central Bureau of Industry and Commerce Beigong Consumer Cooperative Society This paper standard is applicable to the Chinese National Standard (CNS) A4 (210X297 mm) 30231Q_B7_ V. Description of the invention (14) That is, as shown in FIG. 5, when the electromagnetic stirring coil part 6 a is used along the long side 10 a of the mold, the short side 1 1 a generated from the short side of the mold faces the immersion nozzle The electromagnetic stirring thrust of 2 is set to P, and the electromagnetic stirring from the dip nozzle 2 toward the short side of the mold 1 1 b. The thrust is set to Q, and the electromagnetic stirring coil part 6 b is used to move along the long side of the mold 1 0 b When the generated electromagnetic stirring thrust from the short side 1 1 b of the mold toward the dip nozzle 2 is set to R, and the electromagnetic stirring thrust from the dip nozzle 2 toward the short side 1 1 a of the mold is set to S, the method of the present invention sets the thrust P and thrust Q, as well as thrust and thrust S are set to be opposite to each other, and thrust Q is set to be greater than thrust P, thrust S is set to be greater than thrust R 0. By allowing electromagnetic stirring thrust to be distributed in this way, the magnitude of the thrust is adjusted, The molten gold in the outer meniscus can provide a clockwise view from above Direction of the same rotating flow. In addition, in Fig. 5, the electromagnetic stirring thrust is set in the reverse direction, the thrust P is set to be greater than the thrust Q, and the thrust R is set to be greater than the thrust S, which can provide the same counterclockwise rotational flow. Next, as shown in FIG. 6, in the embodiment, the wiring of the coil 1 4 a of the electromagnetic stirring coil unit 6 a and the junction box 7 a as the connection mechanism is wired on the side of the mold 10 a on the long side 10 a The circuit is divided into A and B, and on the long side 10 b side of the mold, the circuit composed of the coil 14 b of the electromagnetic stirring coil part 6 b and the wiring of the junction box 7 b as the connecting tip It is divided into C and D. In addition, circuits A and B, and circuits C and D are point-symmetric with respect to the immersion nozzle 2, and circuits A and B are parallel to each other and have different impedances, and circuits C and D are parallel to each other and have different impedances. . -17-(Please read the precautions on the back before filling in this page) The paper size of the printed copy of the Central Committee of Standards, Employee Consumer Cooperative of the Ministry of Economic Affairs is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) A7 B7 V. Inventions Description (15) The circuit of the device shown in Figure 6, as shown in Figure 7, circuits A and C are Y-junctions (star-shaped junctions), and circuits B and D are △ -junctions (ring-shaped junctions), each circuit , The impedance of A and C is larger than that of B and D. Therefore, as indicated by the arrows in the meniscus 5 of FIG. 6, the electromagnetic stirring thrusts along the long sides 10 a and 10 b of the two molds are opposite to each other, and the self-dipping nozzle 2 faces the short side of the mold The electromagnetic stirring thrust in the direction is larger than the electromagnetic stirring thrust from the short side of the mold toward the immersion nozzle 2. In addition, in the command box, by setting electromagnetic stirring conditions suitable for the operation conditions of continuous casting, frequency, voltage, current, etc., it is possible to provide molten metal in the crossbow surface 5 along the mold. The same swirling flow. An example of other circuits, that is, the device shown in FIG. 8, the electromagnetic stirring coil part 6 has grooves 13 and 24 on one side, while circuit A and circuit C each have 5 coils with 15 grooves , And respectively connected in series, the impedance of each circuit, A and C is greater than B and D. Therefore, the electromagnetic stirring thrust is distributed as indicated by the arrows in the meniscus 5 of FIG. 8, and the same rotating flow is provided to the molten metal located in the meniscus 5. As mentioned above, in the continuous mounting of conventional metal slabs, the molten metal discharged from the dipping nozzle will collide with the short side of the mold and become a reverse flow, as shown in Figure 2 on the crossbow surface 5 Inside, as shown by the solid arrow, although it is a flow from the short side 11 of the mold toward the dipping nozzle 2, according to the present invention, as shown in FIG. 5, in the meniscus 5, by self-dipping The m magnetic stirring thrusts Q and s of the nozzle 2 toward the short side 11 of the mold are set to be larger than the electromagnetic stirring thrusts P and R from the short side 11 of the mold toward the immersion nozzle 2, so that the melting in the meniscus 5 can be aligned Jin Xu mentions the same spin-18-(please read the precautions on the back before filling in this page) Order A7 __B7_ printed by the Beigong Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. V. Invention Instructions (16) Diversion. In the present invention, the conditions of electromagnetic stirring can be adjusted by setting the command box to adjust the power supply conditions such as frequency, voltage, current, etc., and can also be set by dividing each circuit divided by the electromagnetic stirring coil unit 6 and the junction box Impedance to adjust. According to the present invention, the molten metal located in the meniscus is provided with an appropriate electromagnetic stirring thrust that has been considered to reverse the flow, so that the molten metal can rotate and flow uniformly along the mold wall. Therefore, the molten metal Precipitation does not occur, and prevents the accumulation of non-golden metal deposits in the molten metal or prevents the dust on the meniscus from being caught in, thereby obtaining a gold slab without surface defects of longitudinal cracks. The following is a comparison with the simulation of the present invention based on a conventional example. With the conventional device of electromagnetic stirring coil parts 6 a and 6 b composed of two coils connected in series, the distribution of the thrust when the rotational force is similarly provided is shown in FIG. 10. The frequency is 2 Hz and the current is 5 2 5A. As for the current density, the electromagnetic stir coil parts 6 a and 6 b are 3. 8 9 3Xl06AT / rrf. Although the thrust distribution has been homogenized compared to FIG. 4, in this example, the component of the long-side direction of the thrust along the long side of the mold 10 is almost constant at each bit on the long side of the girdle. Obtaining the same swirling flow used to produce the reverse flow of molten steel, according to the experiment will produce surface defects on the surface of the metal slab. (Example 1 of the present invention), in the device of the present invention shown in FIG. 6, the frequency of the 3-phase power supply is 2 Hz, the current is 5 2 5A, and as for the current density, the circuits A and C are 2. 2 4 8Xl06AT / rrf ( That is, the impedance becomes 1.73 times that of Conventional Example 2.) Circuits 8 and 0 are based on the paper standard and apply the Chinese National Standard (CNS) A4 specification (210X 297 mm) 1n • 19-I ^ ^ ---- -, Order ------ f (please read the notes on the back before filling in this page) A7 B7 printed by the Beigong Consumer Cooperative of the Central Bureau of Economics of the Ministry of Economic Affairs 5. Description of the invention (17) 3. 8 9 3Χ10〇6ΑΤ / πί (that is, the impedance is the same as the conventional example). The distribution of the electromagnetic stirring force in the meniscus 5 at this time is shown in Fig. 11 and Fig. 12. Figure 11 shows the same situation as Figure 4 and Figure 10. Fig. 12 is a graph of the component whose thrust is in the direction of the long side of the mold at 10 b. The comparison is made with a ratio of the maximum value of thrust to 1.0. It can be seen from FIGS. 1 1 and 12 that the thrust component from the short side 11 of the mold toward the dip nozzle 2 will become smaller (right side of FIG. 12), while the thrust from the dip nozzle 2 toward the short side 11 of the mold will be greater (Figure 12 left). Therefore, when stirring by this device, since a small thrust is provided in the same direction as the reverse flow of the molten steel located in the meniscus, and a large thrust is provided in the opposite direction, the With the same rotational flow as the mold, no precipitation occurs in the molten steel. According to the experiment, a metal slab without surface defects can be obtained. (Example 2 of the present invention) In the device of the present invention shown in FIG. 8, the frequency of the 3-phase power supply is 2 Hz, and as for the current density, the circuits A and C are 2. 3 6 6 X 1 0 6 AT / rrf (that is, , The impedance becomes conventional example 2

1 · 65 times), circuits B and C are 3. 8 9 3 X 1 Ο 6A T / rrf (that is, the impedance is the same as in Conventional Example 2). At this time, the distribution of the electromagnetic stirring thrust in the meniscus 5 is shown in FIGS. 13 and 14 in the same manner as in Example 1 of the present invention. In this example, it can be seen that the thrust component from the short side 11 of the mold toward the dip nozzle 2 becomes smaller (right side of FIG. 14), and the thrust component from the dip nozzle 2 toward the short side 11 of the mold becomes larger (FIG. 1 4 left). Therefore, when electromagnetic stirring is carried out by using the fi, due to the small thrust provided in the same direction as the reverse flow of the molten steel in the lunar surface, the paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 '佂 297mm) (Please read the precautions on the back before filling out this page) 20 302310 A7 B7 V. Description of the invention (18) (please read the precautions on the back before filling in this page), and provide a large thrust in the opposite direction, so you can get the same rotational flow along the mold, and in No precipitation will occur in the molten steel. According to the experiment, a metal slab without surface defects can be obtained. (Example 3 of the present invention), in the device of the present invention shown in FIG. 9, the frequency of the 3-phase source is 2 Hz, and as for the current density, the circuits A and C are 0.97 3X1 06AT / irf (that is, the impedance Become Example 2

4 times), the circuit B and D are 3. 8 9 3X1 06AT / mJ (that is, the impedance is the same as the conventional example 2). At this time, the distribution of the electromagnetic stirring thrust in the crossbow surface 5 is the same as that of Example 1 and Example 2 of the present invention. The thrust component from the short side 11 of the mold toward the immersion nozzle 2 becomes smaller, and the The thrust component of the impregnation nozzle 2 towards the short side 11 of the mold will become larger, so that the same rotational flow along the mold can be obtained without precipitation in the molten steel, and according to the experiment, gold without surface defects can be obtained The second embodiment of the present invention will be described next. In the continuous casting of Jinyu slabs, the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs, due to the adhesion of non-metallic intermediary substances in molten steel to the discharge port of the dip nozzle 2, the discharge velocity of molten metal There will be changes at each spit outlet. At this time, since the flow of the molten metal in the meniscus changes continuously, it is impossible to obtain the same swirling flow stably when the same electromagnetic stirring thrust is provided as before. In addition, the molten gold in the meniscus is expected to provide a pair of reverse flow to prevent or accelerate the thrust in various forms in addition to rotation. However, the conventional electromagnetic stirring system is carried out using a 3-phase 1 power source, and for the flow pattern of molten metal that will cause continuous changes, it is difficult to apply the Chinese national standard (CNS> A4 specification (210X 297 mm) 21 The A7 B7 is printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs. 5. Description of the invention (19) to produce continuous changes in thrust. Furthermore, the electromagnetic stirring thrust along the long sides of the two molds will interfere with each other, and Thrust vortices are generated, so the surface defects of the longitudinal cracks are likely to occur in the shell of the precipitation part. The purpose of this embodiment is to obtain a mold that can be given way in the mold during the continuous manufacture of metal slabs such as steel The molten gold tantalum rotates in the same way in the meniscus, or has an appropriate thrust distribution that can prevent or accelerate the reverse flow, even if the molten gold tantalum flows continuously. When changing, the electromagnetic stirring thrust can also be changed continuously, or the problem caused by the vortex of the stirring thrust can be solved, and the metal slab with excellent surface characteristics can be solved. In the continuous casting device for metal slabs of the embodiment, a molten metal is injected into the mold from a dipping nozzle, and the electromagnetic stirring coil is provided along the long sides of the two molds located in the meniscus. The device to control the flow of molten metal in the lunar surface is mainly composed of: the above 2 electromagnetic stirring coil parts, 2 or 4 power supplies, a junction box for connecting each electromagnetic stirring coil part with each power supply , And the control mechanism of each power supply condition, each electromagnetic stirring coil is a moving magnetic field method in which multiple magnetic poles are arranged along the long side of the mold, and the coil is wound around each magnetic pole. In addition, the coil and the above The circuit composed of the wiring of the junction box is divided into 2 respectively, and any 2 of the 4 divided circuits in total are connected to a separate power supply or the above 4 circuits are connected to a separate "source" Please refer to the figure to explain the device of this embodiment. Figure 15 is from «This paper size is applicable to China National Standards (CNS) A4 specification (210X297mm) Write this page)

22-Α7 Β7 5. Description of the invention (20) On the lunar surface, a cross-sectional view of the metal slab continuous performance assembly e and an explanatory diagram showing an example of the wiring of the electromagnetic stirring coil portion in this embodiment. The immersion nozzle 2 provided in the center of the cross section of the mold 3 with a substantially rectangular cross section is injected with molten gold, and the electromagnetic stirring coil sections 6 are provided along the two mold long sides 10a and 10b, respectively. a, 6 b. By means of individual electromagnetic stirring thrust, the flow of molten gold in the meniscus 5 can be controlled. The device shown in Fig. 15 uses two power sources, that is, the first power source 24 and the second power source 25. The circuit for connecting the coils 14 of the two electromagnetic stirring coil sections 6 a and 6 b to each power supply is divided into two, and any two of the four divided circuits in total are combined in two, They are connected to individual power sources 24 to control the electromagnetic stirring thrust caused by the coils of each circuit. Specifically, there are the following three combinations. ① Connect circuit A and circuit C to the first power supply 24, and connect circuit B and circuit D to the second power supply 25. ② Connect circuit A and circuit B to the first circuit 24, and connect circuit C and circuit D to the second circuit 25. Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the precautions on the back before filling in this page) ③ Connect circuit A and circuit D to the first power supply 2 4 and connect circuit B and circuit C to the second power supply 2 5. These three types of combinations can be appropriately selected during operation by switching the switching box 21, or can be set in advance without using the switching box 21. For the other installation of β in this embodiment, as shown in 圚 16, use 4 power supplies, that is, the first power supply 26, the second power supply 27, the third power supply. This paper standard applies to the Chinese National Standards (CNS ) Α4 specifications (210X297 mm) -23-A7 Printed by the Employees Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 3i) 23i0 5. Description of the invention (21) 2 8 and 4th power supply 29. The circuits for connecting the coils 14 of the two electromagnetic stirring coil parts 6 a and 6 b to the power sources are divided into two, and the divided four circuits A, B, C, and D are respectively divided into Connect to other power sources 2 6 ~ 2 9 and control the electromagnetic thrust caused by the coils of each circuit. In this embodiment, the control of the electromagnetic stirring thrust distribution is based on the observation result of the flow of molten gold in the meniscus 5, and the control box 2 2 is used to adjust the two power sources 2 4, 2 5 or 4 Each power supply 26 6 ~ 2 9 frequency, phase difference, current and other conditions. The flow of molten metal can be observed by a person directly observing the meniscus, or by a detector 23 that can output the image processing results of a camera or the like. In addition, the wiring of each circuit A, B, C, D, where each coil 14 can be connected in series, parallel connection, or a combination of series and parallel connection, an appropriate circuit can be set according to the purpose, and can be fixed during operation It can be switched appropriately in a certain circuit. Each of the power supplies 24 to 29 can be constructed as shown in FIG. 17 in addition to those shown in FIG. 15 and FIG. 10. In addition, it can also be other inverter- (invertor) method or cycle comparator (cycle compartor) method. According to the second embodiment described above, since the four circuits A, B, C, and D are divided into a total of four power sources or two power sources to control the sickle stirring thrust, it can be positioned on the meniscus The molten metal inside provides various forms of thrust distribution, and can be adapted to the continuous casting situation of continuous changes in the situation, to carry out appropriate flow control. Figure 18 is a table for various forms of electromagnetic stirring thrust, according to the conventional one power supply method, the present invention 2 (please read the precautions on the back before filling in this education)

, 1T spider! This paper scale is applicable to the Chinese National Standard (CNS) Α4 specification (2 丨 0 X 297 mm). 24 Ministry of Economic Affairs Central Standard Falcon Bureau Beigong Consumer Cooperative Printed A7 B7. Fifth, the invention description (22) power modes and 4 power sources The thrust distribution obtained by the method. The rectangle in the circle represents the meniscus surrounded by the mold, the direction of the arrow is the direction of the thrust, and the length of the arrow indicates the magnitude of the thrust. Rotation is a pair of molten metal in the meniscus that provides a rotation effect, and brake is a stopper for the reverse flow, and acceleration is a reverse acceleration for the reverse flow. Simultaneously is to provide a flow from one mold short side to another mold short side. In addition, Fig. 18 shows the case where the impedances of the circuits A, B, C, and D are set to be the same, and the thrust form is changed by the wiring of each circuit. In the conventional one power supply method, the thrust generated by each circuit is the same. However, when using the two power supplies of the present invention, by changing the current values of the two power supplies, the magnitude of the two sets of thrusts can be arbitrarily changed. In addition, when the four power supplies of the present invention are used, the thrust of each circuit can be changed for each circuit. Therefore, in the continuous casting operation, even if the flow of molten gold in the mold changes due to the condition of the discharge port of the immersion nozzle, according to the present invention, the flow control can be continuously performed to obtain The desired flow condition of the molten gold jelly. For example, when there is a substance adhering to the discharge port of the immersion nozzle provided in the center of the cross section of the mold, and the flow of molten metal in the mold changes, the molten metal in the meniscus is controlled to be constant The situation of the same swirling flow is shown in FIG. 19. (1) When there is no deposit on the left and right of the discharge port of the immersion nozzle and it is clean, the flow of molten metal in the meniscus becomes a bilaterally symmetric reverse flow when electromagnetic stirring is not performed. At this time, in order to obtain the same rotational flow by electromagnetic stirring, the electromagnetic stirring thrust is applied to the Chinese National Standard (CNS) A4 specification (210X297mm) in the face of this paper. (Please read the precautions on the back (Fill in this page again) Order 25 A7 ___B7_ printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Invention description (23) The direction of the flow, that is, the direction from the center of the mold toward the short side of the mold will become stronger Reverse the direction of the flow, that is, the direction from the short side of the mold toward the center of the mold becomes weaker. This thrust distribution can be obtained by setting the current value supplied to each circuit as A = C < B = D in Fig. 15 or Fig. 10, with 2 power supplies or 4 power supplies of the present invention. The way can be achieved. (2) In the case where there is an adhering substance on the side of one of the discharge ports, when electromagnetic stirring is not performed, the flow of molten metal becomes weaker on the side with the adhering substance. Therefore, by this embodiment In the four m-source method, the current value supplied to each circuit is set to A < C < B < D, the thrust can be distributed as shown in the figure, and the same rotational flow can be obtained. (3) In the case where there are attachments on both sides of one of the discharge ports, at this time, also by the four power supply methods of the present invention, set to A < C < B < D, the thrust can be as shown in the figure Distribution, and get the same swirling flow. (4) One of the discharge ports is blocked by attachments. The flow of molten gold in the absence of electromagnetic stirring is due to the co-current flow from one mold short side to the other mold short side. Therefore, by the electromagnetic stirring thrust, by setting the current value supplied to each circuit as A = B < C = D, and distributing it as shown in the figure, the same swirling flow can be obtained. 2 power supplies or 4 power supplies can be achieved. The control to obtain the thrust distribution is carried out by observing the flow of molten metal in the meniscus, and appropriately changing the power supply conditions or wiring. In addition, in Fig. 19, although the situations of (2) and (3) are not complete, by using two cyanogen sources, almost the same swirling flow can be obtained. Secondly, when the thrusts generated by the relative electromagnetic stirring coils are against each other, the paper size is applicable to the Chinese National Standard (CNS) A4 specification (2 丨 0X 297mm) (please read the precautions on the back before filling this page)

-26-A7 302310 ___B7 V. Description of the invention (24) When a vortex that generates thrust due to ground disturbance, according to the present invention, the phase difference of each power source can be adjusted to change the position of the vortex. Therefore, the settling portion between the vortexes does not accumulate non-metallic intermediary substances in the molten gold, and a slab with no surface defects of longitudinal cracks can be obtained. Furthermore, in this embodiment, even if multiple power supplies are used, the total power supply capacity is the same as when one power supply is used, and the overall equipment cost is cheaper. The following shows the simulation results of this example.

As shown in FIG. 20, using two power sources 24 and 25, by connecting circuit A and cyanogen source C to the first power source 24, and connecting circuit B and circuit D to the second power source 25, you can make The molten steel rotates and flows in the meniscus 5. The frequencies of the first power supply 24 and the second power supply 25 are both 1.8 Hz, and when the current density Ια of the first power supply 24 is set to 8. 3 1 9 X 1 06AT / irf (enumeration value), the second power supply The flow density I 2 of 2 5 changes when the electromagnetic thrust force distribution in the lunar surface is shown in Figure 2 1 ~ Figure 25. The representation of these figures is the same as in Figure 4, where π is Ια / 12. In addition, in FIG. 26, the component of the thrust in FIGS. 2 1 to 25 in the direction of the long side 15 a of the mold is expressed as a ratio of the maximum value of the thrust being 1. It can be seen from Figure 2 1 ~ Figure 2 5 that by changing the current of the two power sources, the electromagnetic stirring force distribution in the lunar surface can be generated. Observing the flow of molten steel from the meniscus and adjusting the value of α can provide the same rotating flow to the molten steel in the meniscus. According to the experiment, a steel slab without surface defects can be obtained. Or, moreover, in the device of the invention of 圚 20, by changing the paper size of the power supply, the Chinese National Standard (CNS) Α4 specification (210Χ297mm) is applied (please read the precautions on the back before filling this page) , 1Τ Kip! The Ministry of Economic Affairs, Central Bureau of Preservation and Management, Beigong Consumer Cooperative Institution 27-A7 __B7_ V. Description of the invention (25) 2 4, 2 5 The phase difference changes the position of the thrust vortex located in the meniscus, according to the experiment , Slabs with superior surface properties can be obtained. Furthermore, in the apparatus of the present invention shown in Fig. 16, the current of each of the power supplies 26 to 29 is adjusted while observing the flow of molten steel from the meniscus, so that the molten steel rotates and flows in the meniscus 5. However, although the immersion nozzle 2 after completion of construction is as shown in Figure 19 (+), one of them is blocked, but in casting, the same swirling flow is often obtained, and a flat surface with good surface characteristics is also obtained. . According to this embodiment, in the continuous production of metal slabs such as steel, the molten gold in the mold can be rotated in the same manner in the meniscus, or the reverse flow can be prevented or accelerated. In addition, even when the flow of molten metal fluctuates continuously, the electromagnetic stirring force can be continuously changed to solve the problems caused by the vortex of the stirring thrust, and a golden squash with excellent surface characteristics can be obtained. Billet. In addition, even if two power supplies or four power supplies are used, the total power supply capacity does not change, and the equipment cost becomes cheaper. Next, the third embodiment of the present invention will be described. Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the precautions on the back before filling in this page) In the first to second embodiments above, in order to generate a stable circulating flow, a strong electromagnetic force is required . For example, in Fig. 27, the right half of the linear motor 6 F used as the mixing coil part and the left half of the linear motor 6 L must provide a molten steel flow that can overcome the flow from the injection nozzle into the mold Electromagnetic force. Here, in general, the pole number N of the linear motors 6F and 6 L is set to a small number of 2 poles or 4 poles. The reason is explained below. The groove of the linear motor along the side of the mold (the groove for inserting the coil) This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) -28-Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs Printed A7 B7. V. Description of invention (26) The arrangement pitch is set to rs, the number of grooves is set to η, the length along the binding edge of the linear motor is set to L, and the number of AC phases energized to the coil is set to M ( Normally, M = 3), the pole pitch is set to r ρ, and the number of poles is set to N, which has the following relationship. L = rs X η ...... (1) = r ρ XN ...... (2) r ρ = m X rs ...... (3) m = n / M ... ... (4) In order to increase the electromagnetic force, it is better to reduce the leakage impedance, therefore, it is necessary to increase the column spacing r ρ. That is, the groove spacing rs can be increased in the formula (3>). Therefore, since (1), (2), since L is constant (certain length), the number of poles N becomes less. That is because of this reason, the past The number of poles of the linear motor N is a few poles of 2 poles or 4 poles. In addition, the frequency of the alternating current energized to the electric coil is to obtain a strong electromagnetic force with a small number of poles. Set to 1 ~ 2Hz. As shown in Figure 3, when it is 2 poles, the electromagnetic force becomes maximum at the frequency of 1Hz, and when it is 4 poles, it is slightly at the frequency of 2Hz. The force will become maximum, so the frequency of 1 ~ 2 Η ζ is used. The purpose of this embodiment is to tap the large electromagnetic force to promote the upstream of the bubble, and to avoid the insertion of the bubble into the molten steel and / or to counter the nearby Wipe the inner surface of the mold. The connection casting equipment of the molten gold in this embodiment is made by applying the Chinese National Standard (CNS) A4 specifications (210X297mm) along the paper size surrounding it (please read the notes on the back first (Fill in this page again)

-29-A7 302310 _B7 5. Description of the invention (27) (please read the precautions on the back before filling in this page) Multiple magnetic poles arranged around the mold (3) of the molten metal (1) and exciting each magnetic pole It is composed of multiple electrical coils, with a linear motor (6 F, 6 L) along the edge of the die, and an energizing means (3 0A, 3 0B) that can energize each coil to generate a linear driving force. 9 The first feature is that the linear motor (6F, 6L) is a linear motor with a pole number of 5 poles or more, and the second feature is the above-mentioned energizing means (30A, 30B) which can energize the electric coil above 4Hz The third characteristic is that the alternating current is energized, and the third characteristic is that the ampere conductivity is set to 1 2 0 0 AT / cm. The distribution of the electromagnetic force applied to the surface part of the molten metal in the stencil corresponds to the value of the magnetic pole N. Figure 34 (N = 2), Figure 35 (printed by the Consumer Standardization Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs N = 4), Figure 36 (N = 6) and Figure 37 (N = 12). These figures show that when linear motors 6 F and 6 L with grooves of η = 36 (ie, 36 electrical coils) arranged along one of the long sides of the casting mold place the yoke mold in between, as in When arranged as shown in FIG. 27, the arrow indicates the distribution of the electromagnetic force on the horizontal surface of the surface layer of the molten metal in the insert. The direction of the arrow indicates the direction of the electromagnetic force, and the length indicates the strength. In addition, when 3-phase alternating current (Μ = 3) at 1.8 Hz is energized, the electromagnetic force (琹 分 嶤) generated during one cycle can be calculated. In the case of the two poles shown in Fig. 34, although the magnetic force is large, the electromagnetic force component in the y direction (the direction along the short side of the yoke) will become stronger (in the figure, the arrow in the y direction Long), and 1 paper each on the right and right (y direction). The Chinese national standard (CNS) A4 specification (210X297 mm) is applicable. -30-Printed by the Ministry of Economic Affairs Bureau of Central Standards A7 ____ B7. (28) There are two positions in total, and the electromagnetic force becomes a vortex in the counterclockwise direction. Such a force will cause the molten metal 1 to vortex, so the dust may be easily caught. In addition, since the electromagnetic component in the X direction along the inner wall surface of the insert (the inner surface of the long side) is distributed in the X direction in the X direction, uneven cleaning of the inner surface of the mold may occur in the X direction, and It is easy to cause the melt to partially stay. In the case of the + pole shown in Fig. 35, the electromagnetic force will become a vortex in the counterclockwise direction at a total of 4 positions at each of two positions on the left and right (y direction). The component with increased vortex number will weaken the electromagnetic force component in the y direction (along the short side of the mold), but the component in the y direction is still large, so it is easy to cause entanglement of dust. In addition, since the electromagnetic force components in the X direction along the inner wall surface (long-side inner surface) of 楳 楳 are distributed in large and small directions, uneven cleaning may occur on the inner surface of the mold in the X direction. In this way, it can be understood that in the case of the conventional 2 poles and 4 poles, it is insufficient to prevent dust from being caught or uneven cleaning of the inner surface of the mold. In the case of the 6-pole shown in Figure 3, it is believed that there are about 6 vortices, the vortex will be weakened, and the possibility of entrapment of powder bubbles will be reduced. Also, near the inner surface of the long side of the mold, adjacent to The electromagnetic force of the green outside the vortex is continuous, and the y-direction component is extremely small, that is, the X-direction component of the electromagnetic component is equal along the entire length of the long side (X direction), and it will bring a certain direction (X Direction), and the surface flow at a certain speed makes the cleaning of the inner surface of the mold uniform, and promotes the floating of the bubbles. In the case of the 12 poles shown in Fig. 37, the y-direction component of the electromagnetic force disappears substantially, and no vortex is generated, and substantially only the surface flow is generated. Therefore, to prevent the dust roll paper from using the Chinese National Standard (CNS) A4 specification (210X297mm) H -------, order ------ Μ I (please read the precautions on the back first (Fill in this page again) 302310 a? ___B7_ V. Description of the invention (29) The effect is extremely high, and along the entire length of the long side of the die (X direction), the X direction component of the electromagnetic force is equal and brings a certain direction ( X direction) and a certain velocity of the surface flow, so that the cleaning of the inner surface of the mold becomes uniform, and promotes the floating of the bubbles. According to the first feature of the present embodiment, since a multi-pole number that has not been used in the past, that is, a linear motor with more than 5 poles is used, referring to FIG. 36 and FIG. 37 above, the effect of the description can be brought about . As mentioned earlier, because the conventional system used 2-pole or 4-pole linear motors, and in these cases, when it is 2-pole, the maximum electromagnetic force can be obtained at a frequency of 1 Hz. When it is 4 poles, the maximum electromagnetic force can be obtained at a frequency of 2 Hz. Therefore, in the past, linear motor systems used 1 to 2 Hz 3-phase AC. However, when the frequency is so low, the penetration depth of the magnetic force into the molten metal is deep. Therefore, even inside the molten metal, strong electromagnetic force will act on the molten metal. And this will cause the strong vortex shown in Figure 34 and Figure 35. Printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page) The distribution of the electromagnetic force applied to the surface layer melted in the mold corresponds to the exchange applied to the electrical coil The frequency values are shown in 3 8 (1.8 Η z), 39 (3 Η ζ), 40 (5 Η ζ), 40 (5 Hz), 41 (10Hz) and 42 (20Hz) ° It means that linear motors 6 F and 6 L with 36 grooves (that is, 36 electrical coils) arranged along one of the long sides of the mold will match the mold with S in between, as shown in Fig. 2 7 When arranging, the arrow indicates the electromagnetic force distribution in the horizontal surface of the molten metal 1 in the mold. The direction of the arrow indicates the direction of the electromagnetic force and the length indicates the strength. In addition, this is applicable to the Chinese National Standard (CNS> A4 specifications (210X297 mm) -32-3ϋ £ 310 Α7 Β7 at the paper scale. V. Description of the invention (30) Energize a 4-pole (Ν = 4) linear motor For 3-phase current (Μ = 3), the electromagnetic force (琹 分 嶤) generated during 1 week can be obtained by calculation. Please compare the order 3 8 — Figure 4 2 in order to know that as the frequency becomes higher, The component in the Y direction will increase, and the X component will decrease, in which the electromagnetic force inside the molten steel will decrease, weakening the vortex inside the molten steel. By weakening the vortex, the possibility of getting involved in dust will be lower. According to The second feature of the present invention is that the linear motor is applied with an AC frequency of 4 Hz or more, which is higher than in the past, so that the possibility of entrapment of air bubbles can be reduced. Increasing the number of poles and increasing the frequency can make the electromagnetic force become It is smaller than Figure 3 3. Therefore, in order to set the electromagnetic force to about the same level as in the past, and to ensure the stirring speed to a certain level, the current value is generally expressed in the form of ampere conductivity = (lxNs) / rs …… (5) Printed by the Staff Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (Please read the precautions on the back before filling in this summer) I: The current value flowing in the coil, N s is the number of windings of each groove. From the above formula, we have to increase I and Ns. "Number, because it is 80 OAT / cm, so when raising the number of high poles and raising the high frequency, it is best to let at least an ampere conductivity of 1 2 0 OAT / cm or more current flow to increase the electromagnetic force. In the preferred embodiment of the present invention, a multi-pole number that has not been used in the past, that is, a linear motor with more than 5 poles is used, and an AC frequency of more than 4 Hz is applied to the linear motor to greatly reduce the molten metal interior The vortex can be offset by increasing the number of poles to increase the y-direction component due to the increase in frequency. This paper scale is applicable to the Chinese National Standard (CNS) Λ4 specification (210X297 mm) Printed A7 _B7____ 5. Description of the invention (31) 圚 2 7 is the appearance of the device of the third embodiment of the present invention. The space enclosed by the inner wall 31 of the continuous performance model 3 is not shown. Dipping nozzle (Dipping nozzle 2 in Figure 5) Molten gold thorium 1 is injected, and the meniscus (surface) of the molten gold thorium 1 is covered by dust 37. The die is cooled by the cooling water flowing through the water tank 34, and the molten metal is separated from the metal. The surface of the mold is gradually solidified toward the inside, and the casting piece (solidified shell) 4 is continuously pulled. However, because the molten metal is injected into the mold, there will always be 1 ° of molten gold in the mold. Two linear motors 6 F and 6 L are installed at the position of the meniscus height (height direction z) of the molten gold tantalum 1, and electromagnetic parts are provided directly below the meniscus height (surface area) of the molten gold tara 1 Figure 28 is a cross section of the inner wall shown in Fig. 2 7 by horizontally cutting the cores 1 2F, 1 2 L and 6 L of the linear motor 6F, 6L. Figure 2 9 shows the enlarged section of line B-B in Figure 28. The inner wall 3 1 of the mold is composed of long sides 1 0 F, 1 0 L facing each other and short sides 1 1R, 1 1L facing each other, and each side is on a copper plate 33F, 33L, 3 5R , 3 5L back against nonmagnetic stainless steel plate 3 2F, 32L, 36R, 36L ° In this embodiment, the linear motor 6 F, 6 L core 1 2 F, 1 2 L is longer than the long side of the binding die 1 0 The effective length of F, 10 L (the length in the X direction in contact with the molten metal 1) is slightly longer, and 36 grooves are cut at a certain interval over the entire length. The first group of electric coils CF 1 a to CF 1 r and the second group of electric coils CF2 a to CF2 r are installed in the grooves of the core body 1 2 F of the linear motor 6 F. Similarly, the size of the paper on line is applicable to the Chinese National Standard (CMS) A4 specification (210X 297mm)

In I i I!---Ml " ^ 1--j --- n (please read the precautions on the back before filling in this page) -34-Printed by the Ministry of Economic Affairs, Central Bureau of Industry and Commerce Beigong Consumer Cooperative A7 B7 V. DESCRIPTION OF THE INVENTION (32) The grooves of the core body 12L of the sex motor 6L are equipped with the first group of electric coils CL1a ~ CL1r and the second group of electric coils CL2a ~ CL2r. The linear motors 6 F and 6 L are a pair of molten gold alloys 1 that provide a thrust as shown by the arrow in FIG. 5. The linear coils of the first group of linear motors 6 F CF 1 a to CF 1 r are best given to the molten metal weak The thrust of the second group of electrical coils CF 2 a ~ CF 2 r gives molten metal strong thrust. Therefore, the number of windings of the electrical coils CF 1 a to CF 1 r of the first group may be small, but for direct current energization for brake control or adjustment of the thrust distribution in the X direction within the group (group) or suitable for other To control the situation, in this embodiment, all the grooves and all electrical coils of the linear motor 6 F are of the same specification. In this embodiment, a different level of current is applied to each group to produce different thrusts in the first group and the second group. The content will be described later, and the same applies to the linear motor 6 L. Figure 30 shows the wiring situation in the group of all electrical coils shown in Figure 28. The junction wire is 6 poles (N = 6), and the three-phase current is energized to the electric coil (M = 3). For example, the electric coils CF1 a to CF1 r of the first group of the linear motor 6F, in FIG. 30, are sequentially u, u, V, V, w, w, U, U, v, v, W, W, u, u, V, V, w, w to represent. In addition, "Uj indicates that the positive phase of the U-phase of the 3-phase alternating current is energized (in this state), and" u "indicates that the U-phase of the reverse phase is energized (the phase is turned by 180 degrees from the U-phase). For the electric coil "U", the U-phase is added at the beginning of the winding end, and for the electric coil "u", the U-phase is added at the end of the winding. Similarly, the "V" table 3 phase exchange paper size is applicable to the Chinese National Standard (CNS) Α4 specification (210X 297 mm) ---------- (------- II --- --- Μ I (Please read the precautions on the back before filling in this page) -35 _ 302310 A7 ___B7_ V. Description of the invention (33) The positive phase of the V phase is energized, and the reverse phase of the V phase in the "V" table is energized. "W" indicates the positive phase energization of the W phase of 3-phase AC 3, and "W" indicates the energization of the reverse phase of the W-phase. The terminals U1 1, V1 1 and W1 1 shown by the 30 0 are the first The power connection terminals of the first group of gas coils CF 1 a to CF 1 r, and the terminals U2 1, V2 1 and W2 1 are the power connections of the second group of electric coils CF 2 a to CF 2 r of the linear motor 6 F Terminals, terminals U1 2, VI 2 and W1 2 are the power connection terminals of the first group of electric coils CL1 a to CL1 r of the linear motor 6 L, and terminals U2 2, V2 2 and W2 2 are the linear motor 6 L The electrical connection terminals of the electrical coils CF 2 a to CF 2 r of the second group. Printed by the Beigong Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling in this page) Figure 31 shows the linear motor 6F The first group of electrical wires The first group of cyanide coils CL 1 a to CL 1 r of the coils CF 1 a to CF 1 r and the linear motor 6 L are energized with a 3-phase AC power supply circuit. The 3-phase AC power supply (3-phase power line power line) 4 1. A thyristor bridge 42A for DC rectification is connected, and its output (pulse current) is smoothed by the inductor 4 5 A and the tank 4 6 A. The smoothed DC voltage is smoothed. A power transistor bridge 4 7A for forming a 3-phase AC is applied, and the output U-phase of the 3-phase AC is applied to the power connection terminals Ul 1 and U shown in FIG. 30 1, V phase is applied to the power connection terminals V 1 1 and V 1 2 or W phase is applied to the power connection terminals Wl 1 and W1 2. Linear motor 6 F Group 1 electrical coil CF 1 a ~ CF 1 r and the first group of electrical coils CL 1 a ~ CL 1 r of linear motor 6 L, the linear paper used to generate the small thrust shown by the arrow 5 is applicable to the Chinese National Standard (CNS > A4 size (210X297mm) A7 B7 printed by Beigong Consumer Cooperative of Central Bureau of Standards of the Ministry of Economy V. Description of invention (34) Circle pressure command value Vd c A is supplied to the phase angle α calculator 44A, and the phase angle α calculator 44A calculates the conduction phase angle α (thyristor trigger phase angle) corresponding to the command value Vd cA, and supplies a signal indicating this to Gate driver 4 3 Α. The gate driver 4 3 A starts counting the phases as the zero of each phase becomes more real, and turns on and triggers the gate fluid of each phase at the phase angle α. By this, a DC voltage represented by the command value Vd c A is applied to the transistor bridge 47A. On the other hand, the 3-phase signal generator 5 1 A generates a constant-voltage 3-phase AC signal whose frequency is indicated by the frequency command value Fd c (2 OHz in this embodiment) and supplies it to the comparator 4 9 A. In the comparator 49A, a constant voltage triangle wave of 3 KHz provided by the triangle wave generator 50A is also provided. Comparator 49A, when the level of the U-phase signal is positive, if it is above the level of the triangular wave provided by the triangular wave generator 50 A, it is a signal of high level H (transistor on) , When the level of the triangle wave is not full, it is the signal of low level L (transistor hip cut), and in the positive interval of U phase (0 ~ 180 degrees) (U phase positive voltage output transistor), the The output to the gate driver 4 8 A, and when the U-phase signal level is negative, if it is below the triangle wave level provided by the triangle wave generator 50 A, it is a high level signal , If the level exceeds the triangle wave, it is the signal of low level L, and in the negative interval of U-phase (18 0 ~ 3 60 degrees) (U-phase negative voltage output transistor), it is output to the brake Drive 48Α. The same is true for the V signal and the W-phase signal. For the gate actuator 4 8 A, corresponding to the positive and negative intervals of these phases, the transistors of the transistor bridge 4 7 A are turned ON / ---------- (------- , Order ------ ^ I (Please read the precautions on the back before filling in this page) This paper size is applicable to China National Standard (CNS) A4 specification (210X 297mm) -37-Central Standards Bureau of Ministry of Economic Affairs Printed by the industrial and consumer cooperative A7 B7 V. Description of invention (35) 0 FF control. By this, the U-phase voltage of 3-phase AC will be output to the power connection terminals Ul 1 and U1 2, and the V-phase voltage of 3-phase AC will be Output to the power connection terminals VI 1 and VI 2, and the W-phase voltage of the 3-phase AC will be input to the power connection terminals Wl 1 and W1 2, the bit criteria of these voltages is determined by the coil cyanide voltage command value V dc A In this embodiment, the frequency of the 3-phase voltage is set to 20 Hz by the frequency command value F dc. That is, the voltage value specified by the coil voltage command value Vd cA is 2 Hz The 3-phase AC voltage will be applied to the first group of electric coils CF 1 a ~ CF1 r and CL1 a ~ CL1 of the linear motors 6 F and 6 L shown in FIGS. 28 and 29. r. Figure 3 2 is a table that can provide a 3-phase for the electric coils CF 2 a to CF 2 r of the second group of the linear motor 6 F and the electric coils CL 2 a to CL 2 r of the second group of the linear motor 6 L AC power supply circuit. The configuration of the power supply circuit is the same as that shown in FIG. 5. However, the phase angle α calculator 4 4 B in the power supply circuit shown in FIG. 32 is provided with an arrow for generating FIG. 5. The high-thrust coil voltage command value Vd c B shown in Fig. 3. The 3-phase AC U-phase voltage output by the power supply circuit shown in Fig. 3 2 is output to the power connection terminals U 2 1 and U 2 2, V-phase The voltage is output to the power connection terminals V2 1 and V2 2, and the W-phase voltage is output to the power connection terminals W2 1 and W2 2. The level of these voltages is determined by the coil voltage command value Vd c B, the three-phase In this embodiment, the frequency of the voltage is determined by the frequency command value Fdc to be 2 OHz. That is, the voltage value specified by the coil voltage command value Vd c B is 20 Hz. CNS > A4 specification (210X297mm) (Please read the precautions on the back before filling in this page) Order-broken! -3 8-The A7 B7 is printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs. 5. The 3-phase AC voltage of the invention description (36) will be applied to the linear motors 6 F and 6 L shown in FIGS. 28 and 30. The second group of electrical coils CF 2 a to CF2r and CL2a to CL2r. Therefore, in this embodiment, the linear motor 6F, 6 L composed of 6 poles plus 2 OHZ 3-phase AC can be positioned within the inner wall 31 of the mold by the linear motors 6F, 6L The molten metal 1 exerts the thrust shown by the arrow in FIG. 5, and is combined with the flow hip (the solid arrow in FIG. 2) injected from the molten gold from the immersion nozzle to form a circulating flow. Since the linear motor is composed of 6 poles and has more poles than in the past, for those who are considered to have 6 vortices, the possibility of dust being drawn is reduced due to the weak vortex bending, and the length of the die Near the inner surface of the edge, the electromagnetic force on the outer edge of the adjacent vortex is suspected, and the y direction will become extremely small. In other words, along the entire length of the long side (X direction), the electromagnetic force is in the X direction The components are equal, and a certain direction (X direction) is generated, and the surface flow at a certain speed makes the cleaning of the inner surface of the mold become uniform, and promotes the floating of the bubbles. In addition, since the frequency is 2 OHz, which is higher than before, the vortex inside the molten gold can be weak. By increasing the frequency, the component in the y direction tends to increase and the component in the X direction tends to decrease. However, since the number of poles is large, this tendency can be suppressed. According to the first feature of the present embodiment, since the number of poles of the linear motor is larger than in the past, the eddy current is weakened, which reduces the possibility of dust being caught. Also, near the inner surface of the long side of the yoke die, they are adjacent The electromagnetic force at the outer edge of the vortex is in succession, and the y-direction component becomes extremely small. In other words, the X-direction component of the electromagnetic force will be equal along the entire length of the long side (X direction). Standard (CNS) A4 specification (210X297mm) ---------- {------- order ------ ^ I (Please read the notes on the back before filling this page ) -39-302310 A7 B7__ 5. Description of the invention (37) The surface flow in a certain direction (X direction) and at a certain speed makes the cleaning of the inner surface of the binding mold uniform, and promotes the floating of bubbles. According to the second feature of the present embodiment, since the AC frequency is higher than in the past, the electromagnetic force inside the molten metal is reduced, the vortex inside the molten metal is weakened, and the possibility of dust involvement is reduced. Next, the fourth embodiment of the present invention will be described. In the continuous casting of Jinxing slabs, when one of the flows of molten gold from the two outflow ports 3 9 of the dip nozzle 1 2 to the space inside the mold is strong, and the other is weak, That is, when the symmetry is lost, the surface flow 3 8 will be as shown in Fig. 4 3B, and the surface flow above the outflow port where the flow of molten gold is weak will become weak. Due to the flow variation of the molten metal (bias flow), a high temperature portion and a low temperature portion are generated in the molten metal in the mold. That is, where the flow of molten metal is strong, the temperature is high, and where it is weak, the temperature is low. When the temperature of the wall of the mold at the same position is not uniform, surface cracks or cracks in the shell are likely to occur. To the extent that the temperature unevenness caused by the linear motor driving the molten metal can be avoided to a certain extent, the outlet of the immersion nozzle 2 will change due to the adhesion of the metal to the outlet during injection, This change, especially when the difference in the outflow characteristics of the two outflow ports becomes large, will cause a considerable temperature deviation. The purpose of this embodiment is to suppress the temperature unevenness of the molten metal due to the different positions in the sickle. The continuous production equipment of this embodiment is composed of multiple magnetic cores arranged along the mold side of the Baoyuan molten metal (1) and multiple magnetic papers which are used to excite each magnetic core. This paper standard is applicable to the Chinese National Standards (CNS) ) Α4 specification (210X297mm) ---------- 一 -------, 1Τ ------ ^ I (please read the precautions on the back before filling this page) Economy Printed by the Ministry of Central Standards Bureau employee consumer cooperatives 40 Printed by the Ministry of Economic Affairs Central Standards Bureau Beigong Consumer Cooperatives A7 ____B7_ V. Description of invention (38) Composed of coils of gas and equipped with "Magnetic Stirring" Or a linear motor (6 F, 6 L), and a means of direct current or alternating current (30F1, 30F2, 30L1, 30L2) to apply a pair of molten gold to the electrical coil to apply braking or driving force 44 ~ Figure 4 7), and is characterized by its equipment: temperature detection means (S11 ~ Sin), S2 1 ~ S2n, S3 1 ~ S3m, S4 1 ~ S4m) (Figure 11) 48 and FIG. 49), and the current command that supplies a high braking force to the molten gold flow near the high temperature is supplied to the above energization Section (3 0 F 1, 30F2,30L1, & 0L2) temperature distribution control means 63 (FIG. 50). Where the flow velocity of the molten metal is high, the temperature of the inner wall of the mold is high, and where the flow velocity is low, the temperature of the inner wall of the mold is low. Therefore, the flow velocity distribution of molten gold is corresponding to the temperature distribution detected by the temperature detection means (S 1 1 to S 1 η), S2 1 to S2n, S3 1 to S3m, and S4 1 to S4m). In the present invention, the temperature distribution control means (6 3) supplies the current command (3 0 F 1, 30F2, 30L1, 30L2) with a current command that provides a high braking force to the molten metal flow near the high temperature. ). That is, because the flow rate of the molten gold is high, a braking force is provided to the molten gold to suppress the above-mentioned bias flow of the molten gold. That is, the flow velocity distribution of the molten metal is made uniform. Therefore, the temperature unevenness of the molten metal in the mold due to the different positions can be suppressed. The appearance and central profile of the β installed in this example are as shown in Figure 2 7. The paper size is applicable to the Chinese National Standard (CNS) Α4 specification (210X297mm) (please read the precautions on the back and fill in this page) Μ -41-A7 B7 printed by Suigong Consumer Cooperative of the Central Bureau of Prototyping of the Ministry of Economic Affairs V. Invention description (39) The figures shown are roughly the same. The enlarged cross-sectional view of the magnetic core of the device of this embodiment cut in the horizontal direction is approximately the same as that shown in 圚 28, and the wiring of the electrical coil of the device of this embodiment is roughly the same as that shown in the same. Fig. 4 is a table showing a 3-phase AC power supply circuit 3 0 F 1 for the first group of electric coils CF 1 a to CF 1 r of the linear motor 6 F. The 3-phase AC krypton source (3-phase power line) 41 is connected to a thyristor hip bridge 4 2 A1 for DC rectification, and its output (pulse wave) is smoothed by an inductor 45 A1 and a capacitor 46 A1. The smoothed DC voltage is applied to the power transistor bridge 4 7 A 1 used to form a 3-phase AC, and the U-phase of the 3-phase AC output from this is applied to the power connection shown in FIG. 30. Terminal U 1 1, V-phase is applied to power connection terminal VI 1, and W-phase is # added to power connection terminal W1 1. The coil voltage command value VdcAl for generating the small thrust shown by the arrow in FIG. 5 is supplied to the phase angle α calculator 4 4A1, and the phase angle “calculator 4 4A1 calculates the value corresponding to the command value VdcAl Turn on the phase angle or (the thyristor triggers the phase angle), and supply a signal indicating this to the gate driver 43A1. The brake actuator 4 3A1 starts counting the phases from the zero crossing point of each phase, and at the phase angle ″, it implements the on trigger of the thyristor of each phase. By the way, at the transistor bridge 47A1, a DC voltage represented by the command value Vd c A 1 is added. On the other hand, 3 believes that the generator 5 1 A 1 generates a 3-phase AC signal of a certain voltage specified by the frequency command value F dc at a frequency (20 Hz in this embodiment), and this level is biased The DC level component specified by the bias command value B 1 1 is shifted and supplied to the comparator. The paper standard is applicable to the Chinese National Standard (CNS> Α4 said grid (210 X 297 mm) ----- ----- ^ 乂 — (please read the precautions on the back before filling in this page) 訂 -42-3i) 2Si Ο Α7 _Β7_ 5. Description of the invention (40) 4 9Α1. In the comparator 49 Α1, a certain electrical triangle wave of 3KZζ is supplied via the triangular wave generator 50 Α1. Comparator 4 9 A 1, when the U-phase signal is at a positive level, when it is above the level of the triangular wave supplied by the triangular wave generator 50 A 1, the high level signal (transistor Turn on), and when the level of the triangle wave is not full, the signal of the low level (L) (transistor cut off) is output to the gate in the positive interval of U phase (transistor for U phase positive voltage output) Driver 4 8 A 1, and when the U-phase signal is at a negative level, when it is below the level of the triangular wave provided by the triangular wave generator 5 0 A 1, the signal of the high level H is exceeded, and when it exceeds When the triangle wave level is set, the low level L signal is output to the gate driver 4 8A1 in the negative interval of the U phase (transistor for negative voltage output of the U phase). The V-phase signal and the W-phase signal are the same. Gate driver 4 8 A 1, corresponding to the signal of the positive and negative sections of each phase, ΟΝ / OFF control is applied to each transistor of the electric crystal hip bridge 4 7A1 (Notes on the back and then fill in this page) In this way, the U-phase voltage with DC bias component (B 1 1) in 3-phase AC will be output to the power connection terminal U11, and the same V-phase voltage will be output to The power connection terminal VI1, and the same W-phase voltage is output to the power connection terminal W11, the bit criterion between the peak value / lower peak value of these voltages is determined by the coil voltage command value V dc A 1 The bit criterion of the DC component of the bias voltage is determined by the bias voltage command B 1 1. In this embodiment, the frequency of the three-phase voltage is determined to be 20 Hz by the frequency command value Fdc. That is, it has the peak value electrical value (thrust) specified by the coil electrical command value V dc A 1 and the bias voltage command. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -43 -A7 —----! Z_ V. Description of the invention (41) B 1 1 The DC component (braking force) specified at 2 Hz and a 3-phase AC voltage at 20 Hz will be applied to Figure 28 and Figure 3 The first group of electric coils CF 1 a to CF 1 r of the linear motors 6 F and 6 L shown at 0.鈃 4 5 series table for the linear motor 6 F of the second group of electrical coils CF 2 a ~ CF 2 r to supply a 3-phase AC power supply circuit 3 0 F 2 ′ 閖 4 6 series table for the linear motor 6 L second The group of electric coils CL2 a ~ CL2 r supplies a three-phase current power supply circuit 3 0L1: 鈃 47 series of linear motor 6L of the first group of electric coils CLl a ~ LC1 r supplies a three-phase AC power supply circuit 3 0L2 . The configuration of these power supply circuits 3 0F2, 3 0L1 and 3 0L2 is the same as the above 3 0 F 1, but the coil voltage command values (V dcA2 ~ 4) and the bias command (B2 1, B22, B12) are different . Printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the $ item on the back before filling in this page). That is, it is used to generate the electric coils CF 2 a ~ CF 2 r of the second group of linear motor 6 F A coil voltage command value V dc A 2 with a large thrust force as shown by the arrow in FIG. 5 is supplied to the phase angle α calculator 44A2. The coil voltage command value Vd c A 3 for generating a large thrust as shown by the arrow in FIG. 5 in the second group of electric coils CL2 a to CL2 r of the linear motor 6L is supplied to the phase angle α The calculator 4 4B1. In addition, the coil electric command V V dc A 4 for generating a small thrust force as shown by the arrow 5 in the first group of electric coils CL1 a to CL1 r of the linear motor 6L is supplied to the phase The angle α calculator 4 4 B 2. Partial instruction Β 1 1 (Figure 4 4) is used to designate the size of the additional online paper. It is applicable to the Chinese National Standard (CNS) Α4 specification (210X 297 mm): Printed by the Central Bureau of Economic Affairs of the Ministry of Economic Affairs, Zhengong Consumer Cooperative A 7 B7 V. Description of invention (42) The three-phase AC DC bias level (braking force) of the first group of electrical coils CF 1 a to CF 1 r of the sex motor 6F. Bias command B 2 1 (圚 4 5) is a DC bias level (braking force) for specifying the three-phase alternating current CF 2 a to CF 2 r applied to the electric coil of the second group of the linear motor 6 F )By. The bias command B 2 2 (Figure 4 6) is a DC bias level (braking force) for specifying the three-phase alternating current CL2 a to CL 2 r applied to the electric coil CL2 a to CL 2 r of the linear motor 6 F By. Bias voltage command B 1 2 (圚 4 7) is a DC bias level (braking force) for specifying the three-phase AC three-phase alternating current CL 1 a to CL 1 r that is applied to the linear motor 3 L of the first group )By. These bias commands B11 (囵 44), B21 (FIG. 45), B22 (FIG. 46) and B12 (FIG. 49) are supplied to each computer by the computer 6 3 shown in FIGS. 48 to 50. The power supply circuits 30F1, 30F2, 30L1 and 30L2. Figure 4 8 shows the backs of the short sides 1 1 L and 1 1 R of the yam mold shown in Figure 28. On these short sides 1 1 L, 1 1 R, the thermocouples S 3 1 ~ S 3 η and S 4 are arranged at equal intervals in the direction of pulling away from the casting piece (high direction: up and down direction) 1 ~ S 4 η; each thermocouple can detect the temperature of the surface part of the molten metal that penetrates against the stainless steel plate and is located slightly inside the copper plate). That is, the signal processing circuit 6 1 A will generate an analog signal (detection number) indicating the temperature detected by the thermocouple and supply it to the analog gate 62. The computer 6 3 controls the output of the analog gate 6 2, and applies the Chinese National Standard (CNS) A4 specifications (210 X 297 mm) to the thermocouple paper size in order (please read the precautions on the back before filling this page ) D-45-Printed A7 _____ _B7_ by the employee consumer cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Description of the invention (43) The detection signals of S3 1 ~ S2n and S4 1 ~ S4n are read by A / D conversion and read by high temperature The value extraction processing means 64 can extract the highest temperature value Tm 1 L 1 and the second high temperature value Tm 2 L 1 among the detected temperatures of the thermocouples S 3 1 ~ S 3 η, and the thermocouple S 4 1 ~ The highest temperature value Tm 1 R 1 and the next highest temperature value Tm 2 R 1 among the detected temperatures of S 4 η are extracted. In addition, the representative temperature of the short side 11R (TmlRl-Tm2Rl) X〇. 7 + T m 2 R 1 and the representative temperature of the short side 11L (TmlLl-Tm2Ll) X0. 7 + T m 2 L 1 and the difference between the two, that is, the representative temperature difference between the short side 1 1 R and 1 1 L ，， 为 （TmlRl— Tm2Rl) X0. 7 +

Tm2Rl-(TmlLl-Tm2Ll) XO. 7- T m 2 L 1 When this value is positive (above 0) (short side copper plate 3 5 R side temperature is high), then calculate VR = representative temperature difference XA (A table Coefficient), and calculate VL 1 = B = VR. When the representative temperature difference is negative (the temperature on the 35L side of the short-side copper plate is high), VL1 = —represents the temperature difference X A, and VR = B-VL1 is calculated. VR series table for the short-side copper plate 3 5 R side electrical coil CF 1 a This paper size is applicable to the Chinese National Standard (CNS) A4 specifications (210X297 mm) (please read the precautions on the back before filling this page) Order Μ! -46-A7 __B7_ printed by the Employees ’Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Description of the invention (44) ~ CFlr (left half of the linear motor 6F, FIG. 28) and (: 1 ^ 2 & ~ (: 1 ^ 2 1 '(Left half of linear motor 61 ^, Figure 2 8) braking force component (bias component) command value, VL 1 series table for short-side copper plate 35L side electric coil CF2a ~ CF2r (right half of linear motor 6F Part, Figure 28) and CLla ~ CLlr (the right half of the linear motor 6L, the pressure component 2 8) braking force component (bias component) command values. These command values, when the representative temperature difference is positive value (short Side copper plate 3 5 R side temperature), then increase the DC current level (bias) of the electric coil flowing in the left half of the linear motor 6 F, 6 L (Figure 28) and apply a strong braking force , And reduce the level of the DC current flowing in the electric coil of the right half to weaken its braking force. Conversely, when representing the temperature When it is negative (the temperature of the short-side copper plate 3 5 L side is high), increase the straight current level of the electric coil flowing in the right half of the linear motor 6 F, 6 L to apply a strong braking force, and reduce The DC potential of the electric coil flowing in the left half is small and weakens its braking force. Figure 4 9 is the back of the long side 1 OF and 1 0L of the die shown in Figure 2 8. On these long sides 1 OF, 1 0L, respectively, in the horizontal direction, each row is arranged at equal intervals with thermocouples S 1 1 ~ S 1 η and S 2 1 ~ S 2 η; each thermocouple can be detected through the stainless steel plate The temperature of the surface where the molten metal meets slightly inside the copper plate. That is, the signal processing circuit 6 5 Α generates an analog signal (detection signal) indicating the temperature detected by the thermocouple and supplies it to the analog The gate 6 6 Ο m brain 6 3 controls the output of the analog gate 6 6, and the Chinese national standard (CNS) A4 specifications (210X297 mm) are applied to the paper size of the thermocouple in order (please read the precautions on the back before filling in (This page)

-47-302310 a? _B7_ _ V. Description of the invention (45)

The detection signals of Si 1 ~ Sin and S2 1 ~ S2n are subjected to A / D conversion and input. By means of high-temperature value extraction processing means 6, 7, the highest temperature among the detection temperatures of thermocouple S 1 1 ~ S 1 η The temperature Tm 1 F and the secondary high temperature Tm 2 F are extracted, and the highest temperature TmR 2 and the secondary high temperature Tm 2 R 2 among the detected temperatures of the thermocouples S 2 1 to S 2 η are extracted . In addition, the representative temperature of the long side 1 0 F can be calculated

(TmlF-Tm2F) X0. 7 + T m 2 F and the representative temperature of the long side 10L (TmlL2-Tm2L2) X0. 7 + T m 2 L 2 and the difference between the two, that is, the long side 1 OF, 1 The representative temperature difference between 0L becomes (TmlF-Tm2F) X0. 7 + Tm2F- (TmlL2-Tm2L2) XO. 7 — Printed by Cooperating with Consumers of the Central Standards Bureau of the Ministry of Economic Affairs (Please read the notes on the back before reading Fill in this page) T m 2 L 2 When this value is positive (above 0) (long side 1 0 F side temperature is high), then calculate VF = representative temperature difference XC (C table coefficient), and calculate VL 2 = D = VF. When the representative temperature difference is negative (the temperature on the long side 10L side), then calculate VL2 = —represents the temperature difference XC, and calculate VF = B- VL2. The VF series table is for the linear motor 6 F on the long side 1 〇F side (electrical line paper size applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) -48-Duty printed by the Ministry of Economic Affairs Central Bureau of Standards for negative labor consumption A7 B7 V. Description of the invention (46) The command values of the braking force components (bias components) for the CF 1 a to CF 1 r and CL 2 a to CL 2 r circles, and the VL 2 series table is linear for the long side 1 〇L side The command value of the braking force component (bias component) of the motor 6L (electric coils CL2 a ~ CL2 r and CL 1 a ~ CL 1 r). When the representative temperature difference is positive, the command value of the long side 1 〇F side Temperature), then increase the DC current level (bias) of the electric coil of the linear motor 6 F, and apply a strong braking force, and reduce the DC current level of the electric coil of the linear motor 6 L. If the temperature difference is negative (the temperature on the long side is high at 10 L), then the DC current level of the 6 L electric coil will increase. Apply enhanced braking force while reducing the level of DC current flowing through the 6 F electrical coil of the linear motor It weakened its braking force. As shown in Figure 50, computer 6 3 will calculate

B 1 1 = VR + VF B21 = VL1 + VF B22 = VR + VL2 B12 = VL1 + VL2 and supply them to the power supply circuit 3 0 F 1 (Figure 4 4), 30F2 (Figure 45), 30L1 (圚 46) ) And 30L2 (Figure 4 7). As described above, as shown in FIGS. 4 3A and 4 3B, when the flowing state of the molten metal from the outflow port 3 9 toward the short side 1 1 L is weak, and the flowing state of the molten metal toward the short side 1 1 R is strong (1 1 R is higher than 1 1 L), because VR is larger and VL1 is smaller, it becomes B11. This paper uses the Chinese National Standard (CNS) A4 specification < 210X297mm) (Please read the notes on the back first (Fill in this page again) Order-49-A7 __B7__ printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Description of the invention (47) B2 2> B2 1, B 1 2, and on the right half of the linear motors 6 F and 6 L The electric coil of the part is energized to have a higher DC component than the electric coil of the left half, and a strong braking force is applied to the flow of molten metal 1 1 R toward the short side to suppress its speed. In addition, the braking force against the flow of the molten metal of 11 L toward the short side becomes weaker, so that the flow velocity of the molten gold toward the short side 11 L increases. The flow of the molten metal from the outflow port 3 9 toward the short side 1 1 L and the flow of the molten gold toward the short side 1 1 R, even at substantially the same speed, but if the molten metal coming out of the immersion nozzle 2 When the flow deviates to the long side 1 OF side, the temperature of the long side 1 OF will become longer than the long side 1 0L. At this time, since VF will become larger and V2 will become smaller, therefore, B1 1, B2 1, B22, B1 2, and the electric coil of the linear motor 6F is energized to a level that is higher than that of the linear motor 6 L. The high-voltage DC component provides a strong braking force to the molten gold at 10 ° F along the long side while suppressing the speed. The braking force for the flow of 10 L of molten gold along the long side becomes weaker, while the flow rate of 10 L of molten gold along the long side increases. According to the above principle, in the above embodiment, the dip nozzle 2 is taken as the center, and the deviation of the flow velocity of the molten metal in the direction X (left and right) along the long side of the die is suppressed, and along the short side The deviation of the flow velocity of the molten metal in the direction y (the front side and the back side in the width direction) is also suppressed, so that the temperature distribution of the molten metal in the mold is uniformized. Although the above is a description of the case of applying DC, even if there is no moving magnetic field and the electrical coil is connected to the AC, the paper standard can be applied to the Chinese National Standard (CNS) Λ4 specification (210X 297 mm) I --------- Bird ------ ΪΤ ------ f-(Please read the notes on the back before filling out this page) -50-Employee Consumer Cooperative of Central Bureau of Standards, Ministry of Economic Affairs Printing A7 ______B7_ V. Description of the invention (48) Implement the invention. Moreover, in the case of generating a moving magnetic field and energizing the electrical coil with an AC, that is, when the linear motor is energized-an AC that can generate a moving magnetic field, by allowing the linear motor to produce a movement that is inverse to the flow of molten metal The magnetic field can exert a braking force on the molten gold. Next, a description will be given of an embodiment in which a judgment force is applied to molten gold by applying a thrust by a moving magnetic field. In this embodiment, as shown in FIG. 51A, the connection lines of the linear motors 6F and 6L are changed as shown in FIG. 5 2 to generate an electromagnetic force (thrust) in the direction of the immersion nozzle 2 along the long side of the mold ). When the bias flow is generated as shown in Fig. 5 1 B, and the surface flow is stronger on the left side of the dipping nozzle 2 than on the right side, the temperature on the short side on the left side will become high. Here, in this embodiment, as shown in FIG. 51 (C), the electromagnetic force on the higher temperature side is reduced, and the electromagnetic force on the lower temperature side is increased. The calculation of computer 63 is shown in Figure 53. When the braking force is applied according to the mentioned DC, although the DC bias is raised at high temperatures (B11, B22), and at low places, the DC bias (B21, B 1 2) is reduced, but In this embodiment, the AC voltage (VdcAl, VdcA3) is reduced at a high temperature, and the AC voltage (VdcA2, VdcA4) is increased at a low temperature. That is, at high temperatures, the acceleration thrust to the molten metal is reduced, and at low temperatures, the acceleration thrust is increased. In this way, the DC bias (B1 1, B22) of the above embodiment and the AC voltage (VdcAl, V d c A 3) of this embodiment are in an inverse relationship with respect to the temperature, and the magnitude of voltage or current. Therefore, in this embodiment, the computer 6 3, as shown in the paper size, conforms to the China National Standard (CNS) A4 specification (210X 297 mm) ---------- {------ -tT ------ I (Please read the precautions on the back before filling in this page) 302310 A7 B7 Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Invention description: 49) 1 I 5 3 Then, the current output line COM m voltage (V d CA 1 P 1 IV d CA 4 P) minus the required system 1 calculated in the same manner as in the previous embodiment. I The power should be 9 for nbs and update the obtained value. Form a new coil voltage command value / -— V please 1 1 IV d CA 1 V d CA 3 9 can be output to the power circuit separately. First read 1 1 3 0 F 1 9 3 0 F 2 > 3 0 L 1 And 3 0 L 2 »and the value of the line 1 of the current TfaTS. The output line cast voltage (data of the register) is displayed. Note 1 1 V d CA 1 PV d CA 4 P is updated to this output value . In addition, when a bias current 9 is generated as shown in FIG. 5 1 B and a superficial flow is generated on the left side of the immersion nozzle script I 2 that is stronger on the left side than on the right side, 9 is the temperature on the short side of the left side. Will change to 0. So 9 computer B 3 will reduce V d CA 1 on the high temperature side by 1 1 and V d CA 3 9 and increase V d CA 2 on the low temperature side, V d CA 4 1 1 〇 Therefore 9 linear motor 6 F of the first group of electrical coils CF 1 a ICF 1 r and linear motor 6 L of the second group of electrical coils CL 2 a 1 1 CL 2 Γ 3 phase AC current value will be reduced by 9 and electromagnetic force (thrust) ) 1 1 1 will decrease > In addition, 9 linear motor 6 F of the second group of electrical wires taxi circle 1 1 breaks CF 2 a CF 2 r and linear motor 6 L of the first group of electrical wires 1 taw circle CL 1 a The 3-phase AC current value of CL 1 r will increase 'and the electromagnetic force (thrust) will increase, so 9 according to the linear Up to 6 F »6 L, the electromagnetic force of 1 I is shown in Fig. 5 1 C. So > the surface flow on the right side of 1 I due to bias current will become stronger 9 and can be in the meniscus A uniform flow is obtained. 1 1 I shape 0 1 1 When the reverse flow is opposite to the bias flow shown by Qi 5 1 (B) 9 is also 1 1 when the surface slaughter flow on the left side of the dip nozzle 2 is 9 and is around 1 on the side I. When the surface laminar flow is strong, the temperature on the short side on the right side becomes 9 compared with the short side on the left side. 1 1 This paper scale is applicable to the Chinese National Standard (CNS) A4 (210X297 mm) 52 Central Standard A7 B7 printed by the Bureau ’s Consumer Cooperative. V. Description of invention (50) The temperature is high. Corresponding to this, the computer 63 will reduce VdcA2 and VdcA4 on the wet side, and increase VdcAl and VdcA3 on the low temperature side. Therefore, the three-phase AC current value of the first group of electric coils CF 1 a to CF 1 r of the linear motor 6F and the second group of electric coils CL2 a to CL2 r of the linear motor 6 L will increase, thereby increasing the electromagnetic force (Thrust) The 3-phase AC current value of the electric coils C 1 1 a to CL 1 r of the first group of the linear motor 6 L will decrease and the electromagnetic force will decrease. By this, the drawer flow on the left side of Luan weakened due to the bias flow will become stronger, and in the meniscus, a uniform flow condition can be obtained. According to the above principle, in the above embodiment, it is possible to suppress the flow velocity deviation of the molten gold in the direction X (left direction) along the long side of the mold centering on the dip nozzle 12 as the center, so that the molten gold in the binding mold The temperature distribution is uniform. 0 At a high flow rate of molten gold, it provides a high braking force to the flow of molten gold, so that the bias flow of molten gold can be suppressed. That is, the flow velocity distribution of the molten metal is made uniform. Therefore, the temperature unevenness caused by the difference in position e of the molten gold in the die can be suppressed. Next, the fifth embodiment of the present invention will be described. In the above embodiment, in order to generate a stable circulating flow, it is necessary to have a strong electromagnetic force. For example, the right half of the linear motor 6 F and the left half of the linear motor 6 L must provide a strong electromagnetic force that can overcome the flow of molten metal flowing from the immersion nozzle 2 into the mold. Here, by changing the junction line to multiple power sources, a strong electromagnetic force can be obtained. The surface hurricane of molten metal caused by the linear motor mentioned above, although the size of this paper is applicable to the Chinese National Standard (CNS) A4 specification (210X297mm) ---------- {------ 1T ------ Μ I (please read the precautions on the back before filling in this page) -53-A7 ______B7 printed by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs V. Invention description (51) can produce the above-mentioned circulation flow However, in order to obtain a strong electromagnetic force and replace the wire, the size of the current flowing in the coil is determined by the cooling capacity. The reason will be explained below. In the groove cut in the coil of the linear motor, when the length of the groove in the width direction is set to ra [m], the length of the groove in the depth direction is set to rb [m], and the number of flexures of the coil wound around the core is η, when the magnitude of the current is set to I [A], the current density j is the total number of power lines passing through the unit plane of space, and is expressed as follows. i = (石 Xn I) / raXyb) ...... (1) In addition, it is the percentage of electric coils in the trench section. However, from equation (1), it can be seen that the current density j is proportional to the magnitude of the current, and when the coil is heated by the flowing current, its temperature increases as the current density increases, and therefore, The cooling conditions of the coil limit the amount of current flowing in the coil. That is, when the coil uses copper, according to the cooling conditions of copper, when the cooling method is water-cooled, the cooling capacity is 3-6 e + 6A / rrf, and when it is air-cooled, it is limited to Fan garden of 1 ~ 2 e + 6A / rrf. Therefore, when the distribution of electromagnetic force is to be changed, only the magnitude of the current can be reduced, and a sufficiently large electromagnetic force cannot be obtained. The purpose of this embodiment is to more effectively avoid the promotion of air bubbles to float up or to prevent the air bubbles from getting into the molten metal and / or to wipe the inner surface of the mold near the surface layer. This paper scale is applicable to China National Standard (CNS) Α4 specification (210Χ297 mm) ^, -ιτ ------ ^ I (please read the precautions on the back before filling this page) -54-B7 (52) As shown in FIG. 54, this embodiment is provided with: it is arranged along one side (1 0 F) of the mold side surrounding the molten gold tantalum (1), and has multiple grooves (BF 1 a etc. ) Of the first group of linear motors (6 F) composed of a magnetic core (1 2 F) and a plurality of coils (CF 1 a, etc.) inserted into at least a part of a plurality of grooves, along the The other side (1 0 L) is configured by a magnetic core (1 2 L) with a plurality of grooves (BL 1 a etc.) and a plurality of electrical coils (CL 1) inserted into at least a part of the plurality of grooves a etc.) The combined linear motor (6L) of the second group and the energizing means for energizing the linear motors (6F, 6L) of the first and second groups. Printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page) In the first aspect, the space surrounded by the edges of the mold is passed through the nozzle member that supplies molten metal The center, and the imaginary first plane that intersects the above-mentioned side perpendicularly to the center passing through the nozzle member, and the imaginary second plane that intersects the first plane perpendicularly, are divided into 4 parts, and these are divided into spaces, With the nozzle member as the center, the first space, the second space, the third space, and the third space are sequentially arranged in the clockwise direction. At this time, the linear motor faces at least a part of the portion of the first and second spaces The grooves (BFla to BFlr, BLla to BLlr) are set deeper than other grooves (BF2a to BF2r, BL2a to BL2 f). In the second aspect, as shown in FIG. 59, the linear motor (6F) of the first group first has an electrical coil (CFla ~ CFlr) in the groove (BFla ~ BFlr) facing the first space, and the second Group of linear motors (6 L), only in the groove facing the third space (BL la this paper standard is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) -55-Beicong Consumption of the Central Bureau of Standards of the Ministry of Economic Affairs Cooperative Duprinting ΑΊ ____ Β7 _ V. Description of the invention (53) ~ BLlr) with electrical coils (CLla ~ CLlr). In the third aspect, as shown in FIG. 6 Ο A, it is equipped with: the linear motor (6 F) in the first group faces the electric coil (CF 1 a ~ CF 1 r) facing the first space and the second group The linear motor (6 L) faces the electric coil (CL 1 a ~ CL 1 r) in the third space, and passes the first group of the alternating current that drives the molten metal in these spaces along the edge of the yoke Means (VC), and the electric coil (CF2 a ~ CF2 r) facing the second space in the first group of linear motors (6F) and the electric coil (CL2) facing the fourth space in the second group of linear motors (6 L) a ~ CL2 r) The circuit (VD) that has been energized or has been cut off. Effect of the first aspect FIG. 54 is a plan view cut in the lateral direction (parallel to the xy plane) in the linear motor of the first aspect of the fifth embodiment of the present invention. FIG. 5 6 (A) The enlarged plan view of the part of the watch core 1 2 surrounded by the one-point lock line C in FIG. 5 4. Fig. 5 6B is an enlarged planar view of the part surrounded by the point lock line D of the core body 12L. In order to generate a circulating flow along the inner wall 31 of the mold in the surface layer of the molten metal, and to cause the circulating flow to flow stably at a certain speed, a strong electromagnetic force is necessary. For example, the right half of the linear motor 6 F and the left half of the linear motor 6 L must be given a strong electromagnetic force that can overcome the flow of molten metal flowing into the mold. However, due to the cooling conditions of the linear motor, the current that can flow is limited. Here, in the first aspect of the present invention, the paper size is applicable to the Chinese National Falcon (CNS) Λ4 specification (210 / 297mm) ^ -00 * (Please read the precautions on the back before filling this page )

、 1T Printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs A7 B7 V. Description of the invention (54) Increase the ampere inductance coefficient α, that is, deepen the groove and increase the ampere of the electric coil (winding number X through cyanide) Cyanide flow), and get a strong electromagnetic force. There will be a relationship of f α ε 2 between the ampere inductance ε and the electromagnetic force f. When the current density is j and the share ratio is 々, or in FIG. 56 (A), the column spacing is set to rs, the groove When the width in the X direction is set to r ai and the depth in the y direction of the groove is set to r 1) 1, then ε is expressed by a sub-form. e = (nXI) / rsi = j X (rai / rsi) XrbiX / ϊ [A / m] ...... (2) At this time, the current density j and the percentage of husking are based on the cooling conditions of the linear motor Decided that when rars 1 is also a constant, in order to increase ε, it is best to increase rbi. When comparing Fig. 56 (A) with Fig. 5 6 (B), although 7 < 81 = 7 > 81, 731 = 731, 71) 2 = 2 rbi, in the core 1 2F, the coil CF is wound 1 a ~ CF 1 r (hereinafter referred to as the first group) half and coiled CF2a ~ CF2r half (hereinafter referred to as the second group), then coil the coil part of the first group of coils The electromagnetic force has twice the strength of the coil portion wound from the coil of the second group. The same applies to the linear motor 6 L. Therefore, as shown in FIG. 61 (B), in the surface part of the meniscus, a surface current corresponding to the intensity of the electromagnetic force of the motor is generated, which cancels or enhances the flow shown in FIG. 6 1 A The surface flow generated by the injection flow, and finally, the surface of the molten metal is generated as shown in Figure 61 (C). The Chinese national standard (CNS> Λ4 specification (210X29? Mm) is applied along the paper scale (please Read the precautions on the back before filling in this page) Order " ·! -57-A7 B7 printed by the employee consumer cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Invention description (55) The inner wall 31 of the yoke mold and the uniformity of the speed distribution is high The distribution of the electromagnetic force applied in the thin mold of the first aspect of the present invention is shown in Figure 57. A linear motor with a uniform depth of the groove is added to the molten gold in the mold Refer to Figure 34 for the distribution of the electromagnetic force on the surface layer of Tallium. These drawings are indicated by arrows indicating that n = 3 6 (that is, 36 Electrical coils) of the linear motors 6 F and 6 L, with the mold in between, in the mold The current force distribution on the surface of the surface part of the molten gold Ta 1, the direction of the arrow is the direction of the electromagnetic force, and the length is the strength. In addition, this is the three-phase AC at 1.8 Hz energized according to the calculation In the case of the electromagnetic force (integral value) generated in one cycle, as shown in the conventional example shown in FIG. 3, when the number of poles is small (two poles), and the groove is not subjected to any processing, Although the electromagnetic force is large, the electromagnetic force in the y-direction (the direction along the short side of the mold) is strong (in the case, the arrow is long in the y-direction), and in the left and right (y-direction) a total of two The position is a vortex with an electromagnetic force in the counterclockwise direction. This force will cause a vortex to the molten metal 1, and this may be suspected of being involved in the powder. Also, because it is along the inner wall surface of the mold (long side) Inner surface) The X-direction electromagnetic force components in the X-direction are distributed in large and small sizes. Therefore, in the X-direction, the inner surface of the mold may be unevenly wiped, and there is a concern that the molten metal may be partially retained. Under the first aspect of the present invention shown in 7 (the figure shows 2 poles), the y side of the magnetic force The directional component will essentially disappear without generating vortices, and essentially only produce surface flow. Therefore, the effect of preventing dust from being caught is extremely high, and along the full length of the long side of the die (X direction), the X of the electromagnetic force Orientation This paper scale is applicable to China National Standard (CNS) Α4 specification (210Χ 297mm) (please read the precautions on the back before filling this page)

, 1T into! -58-A7 B7 printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Description of the invention (56) The composition is equal, and the surface flow in a certain direction (X direction) and a certain speed is brought, making the inner surface of the mold clear The wiping effect becomes uniform and promotes the floating of bubbles. According to the characteristics of the first aspect of the present invention, since the linear motor used has a groove shape that has not been used in the past, that is, opposite grooves, the depths of the grooves are different, so refer to FIGS. 5 6 A and 5 6 B above And Figure 5 7 to understand the effects. The effect of the second aspect FIG. 5 9 represents the second aspect of this embodiment, where the second group of electric coils of the linear motor 6? 2? 3 3 ~ 0? 2! '(Fig. 5 4) It is omitted, and the electric coils CL2a to CL2r of the second group of the linear motor 6L are also omitted. As a result, the melted gold oxide 1 in the first space and the second space is not substantially subjected to the gelation power. That is, since the linear driving force that does not contribute to the surface flow generated by the injection of molten metal from the immersion nozzle 2 is applied, the electric coils CFla ~ CF2r, CF2a of the first group of linear motors 6 F, 6 L ~ The linear driving force generated by CF2r is preferably set to overcome the surface laminar flow in the first space and the third space due to the injection of molten metal from the dip nozzle 2, and the difference is substantially the same as the The surface velocities in space 2 and space 4 are the same. Therefore, as shown in FIG. 61B, in the surface portion of the meniscus, a surface flow corresponding to the intensity of the electromagnetic force of the motor is generated, which cancels or enhances the injection flow shown in FIG. 61 (A). The surface laminar flow, and finally, is produced on the surface of the molten metal as shown in Figure 61 (This paper standard applies to the Chinese National Standard (CNS) A4 specification (210X 297 mm) (please read the precautions on the back and fill in this page) -59-302310 A7 B7 Printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Description of the Invention &lt; 57) 1 1 C) The average velocity distribution along the inner wall of the mold 3 1 as shown in FIG. 1 Circulation 〇1 1 / -S. Please At 1 I The third aspect of the role of nine reading 1 1 ΓΒΠ m 6 0 A and 6 0 B is the third aspect of this embodiment of the power supply back 1 I of 1 I way 0 and the linear motor used in the third aspect is like 5 5 4 or the picture notice 1 1 matter 1 2 8 Show 0 here> For the linear motor 6 F 9 6 L of the first group of electrical terms and then 1 J coil CF 1 a CF 1 r 9 CL 1 a 9 CL 1 r 9 then the first 100 I 1 9 second The embodiment is similarly powered by an alternating current 9 Η 1 1 I that can generate a linear driving force, and the electric coil CF 2 a to CF 2 Γ CL 2 a 1 1 CL 2 r 9 of the second group can be passed through a DC electric circuit VD (Fig. 6 0 A and 1 1 6 0 B) provides direct current or cuts off the current 〇 (equivalent to DC current order 1 value 0) 0 Therefore, the molten gold in the second space and the fourth space 1 1 I In essence, no linear driving force is applied. 0-When a DC I 1 I that exceeds the level of 0 is provided, 9 is applied to prevent the immersion of the second space and the fourth space. 1 1 The injection of molten metal to the nozzle 2 is completed. The resulting surface flow (Figure 6 1 A) is 1 braking force 0 and the first group of linear motors 6 F 9 6 L The electrical line taaa asks 1 1 CF 1 a CF 1 Γ, CF 2 a ~ CF 2 r produces a linear 1 I driving force &gt; it is best to be set to overcome the injection 1 I from the dipping nozzle 2 into the melt The surface flow 9 1 1 I generated by the metal in the first and third spaces and the difference between them is the same as the velocity of the drawer flow in the second and fourth spaces. In the case of quasi-direct current 9 the velocity of the surface flow in space 2 1 1 and space 4 will be reduced 9 so 9 from the electrical coils CF 1 a to CF 1 r of group 1 1 1 9 CF 2 a CF 2 r 1 1 This paper scale applies the Chinese national standard (CNS & A4 specifications (2 丨 0X 297mm) -60 A7 B7 printed by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. The linear driving force generated by the invention description (58) In addition to the homogenization of the surface velocity, it also becomes smaller. Therefore, as shown in FIG. 6 1 B, a surface flow corresponding to the intensity of the electromagnetic force of the motor is generated in the meniscus, and the surface flow of the injection flow shown in FIG. 6 1 A is cancelled or enhanced, and finally , A circulating flow with high uniformity of velocity distribution along the inner wall 31 of the noodle mold as shown in 圚 61 (C) will be generated on the surface layer of the molten metal. As for the various aspects of this embodiment, it is as follows. -The first aspect is shown in Figure 5. The inner wall 3 1 shown in Fig. 4 4 is a cross section cut horizontally by the linear motor * 6 F, 6 L core body 1 2 F, 1 2 L . The inner wall 3 1 of the mold is composed of long sides 1 OF, 1 0L facing each other and short sides 1 1R, 1 1L facing each other, and each side is made of non-magnetic stainless steel 32F, 32L, 36R, 3 6L is formed against the copper plate 3 3F, 3 3L, 3 5R, 3 5L. In this aspect, the linear motor 6F, 6L core body 1 2F, 12L is longer than the long side of the mold 10F, 110L effective length (and The length of the molten gold alloy 1 in the X direction) is slightly longer, and a total of 36 grooves with different depths (length in the y direction) are cut at a distance of 18 to 18 at a certain distance. . The grooves BF 1 a ~ BF 1 r cut in the core 1 2 F of the linear motor 6 F and the grooves BL 1 a ~ BL 1 r cut in the core 12 L of the linear motor 6 L are more online The groove BL 1 a ~ BL 1 r cut by the core hip 1 2 F of the sex motor 6 F and the Chinese national standard (CNS & A4 specifications (210X297 mm) ~ 61-I --- ------------? τ ------ f I (Please read the precautions on the back before filling in this page) A7 ___B7 _ printed by Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs V. Description of the invention (59) The depth of the groove BL 2 a to BL2 r cut by the core body 1 2 L of the linear motor 6 L is deep, and in this embodiment, it is twice the depth. Therefore, it is inserted The number of ampere turns of the electric coil in the groove is large. In each groove of the core 1 2 F of the linear motor 6 F, the first group of electric coils CF 1 a to CF 1 r and the second group of electric coil CF 2 are installed a ~ CF2 r. Similarly, the first group of electrical coils CL la ~ CL1 r and the second group of electrical coils CL2 a ~ CL2 r are installed in the grooves of the core body 12 L of the linear motor 6 L. Motor 6 F, 6 L is a pair of molten gold alloy 1 to provide one as shown in Figure 6 1B The thrusters indicated by the dotted arrows, and the first group of electric coils CF 1 a to CF 1 r and CL 1 a to CL 1 r of the linear motors 6 F and 6 L can provide a strong thrust to the molten gold, 1 The electric coils CF2 a to CF2 r and CL2 a to CL2 r of the second group provide a weak thrust to the molten gold 1. Therefore, if the groove of the first group is deeper than the groove of the second group, then On the meniscus, a large or small thrust will be generated diagonally, and the change in the velocity of the flow velocity in the meniscus due to the molten metal flowing from the dip nozzle 2 will be accelerated or It cancels out and obtains a uniform stirring effect. 圚 5 5 is the wiring situation of all the electric coils shown in Figure 5 4. The wiring is a 2-pole (N = 2) situation, and a 3-phase AC is provided to the electric coil ( M = 3) For example, the electric coils CFla ~ CFlr of the first group other than the linear motor, in Figure 55, are sequentially w, w, w, w, w, w, w, V, V, V, V, V , V, u, u, u, u, u, u, and the second group of electrical coils CF2 a ~ This paper scale applies the Chinese National Standard (CNS) Α4 specification (2 丨 ΟΧ ”7 Cli) --------- ": ----- 1T ------ M I (please read the precautions on the back before filling this page) 62-A7 B7 V. Description of invention ( 60) 〇 卩 2 1 *, in order by ^ &quot;, \ ^, He, 1, 1 ^,. \ ^, 7, Ya, V, V, v, v, U, U, U, U, U, U to express. Here, "U" represents the positive phase energization of the U-phase of the 3-phase AC (unchanged energization), and "u" represents the reverse phase energization of the U-phase (energization that deviates from the U phase by 180 degrees), and For the electric coil "U", the U phase is added at the beginning of its coiling, and for the m gas coil "u", the U phase is added at the end of its coiling. Similarly, "V" indicates the positive phase energization of the V phase of 3-phase AC, "V" indicates the energization of the reverse phase of the V phase, "W" indicates the positive phase energization of the W phase of 3-phase AC, and "w" indicates the W phase The reverse phase is energized. The terminals Ui, Vi, and Wa shown in FIG. 5 are the first and second groups of the linear motor 6 F, and the power connection terminals of the electrical coils CFla to CFlr, CF2a to CF2r, and the terminals U2, V2, and W 2 are The power connection terminals of the second group of electric coils CL1 a to CL1 r and CL2 a to CL2 r of the linear motor 6 L. Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the precautions on the back before filling in this page) As mentioned above, in this example, the linear motors 6F and 6L with a 2-pillar structure plus 3 phases at 20 Hz AC, according to these linear motors 6F, 6L, the molten metal 1 positioned in the inner wall 3 1 of the mold can be given the thrust shown by the dotted arrow in FIG. 6 1 B, and the molten metal is injected from the immersion nozzle 2 The result of the flow (囵 6 1 A) becomes a solid arrow as shown in Figure 6 1 (C). It becomes a circulating flow. The eddy current will become weaker, and the possibility of dust being involved will be reduced. In the vicinity of the inner surface of the long side of the Yong mold, the electromagnetic force on the outer edge of the adjacent vortex is continuous, and the y-direction component is extremely small. In other words, along the entire length of the long side (X direction), the magnetic force component in the X direction It is equal, and brings a certain direction (X direction) and a certain paper standard is applicable to the Chinese National Standardization (CNS) A4 specification (210X 297 mm) -63-Printed by the Ministry of Economic Affairs Central Standards Bureau Staff Consumer Cooperative A7 ___B7 _ 5 2. Description of the invention (61) The velocity of the surface flow makes the cleaning effect of the inner surface of the mold uniform, and promotes the floating of bubbles. —Second aspect 1 FIG. 5 9 shows an enlarged cross section of the core 1 2 F, 1 2 L of the second aspect of this embodiment cut in the horizontal direction. In the second group of grooves cut by the cores 1 2 F and 1 2 L (groove BF2 a to BF2 r and groove BL2 a to BL2 I ·), coils are not coiled. The other structures are the same as the first aspect. By not winding the coil in the second group of grooves (groove BF 2 a ~ BF 2 r and groove BL2 a ~ BL2 r), the electromagnetic force generated in the core body 1 2F, 1 2 L is only through The coils (CF 1 a to CF1 r and CL1 a to CL1 r) wound in the first group of grooves (the grooves BF 1 a to BF1 r and the grooves BL1 a to BL1 r) are generated. The distribution of the electromagnetic force applied to the surface part of the molten gold in the second mode of the present embodiment is shown in Fig. 58, and essentially the surface flow can be generated. In addition, because of the omission of winding coils, time can be rationalized and costs can be reduced. Furthermore, along the entire length of the long side of the die (X direction), the electromagnetic force components are equal in the X direction, which brings a certain direction. (X direction), and a certain velocity of the surface flow, which improves the effect of preventing dust from being entrapped (the result is that the cleaning effect of the inner surface of the mold becomes uniform, and the air bubbles are promoted. This paper scale is applicable to the Chinese National Standard (CNS ) A4 specification (210X297 mm) ---------- ^ --- (please read the precautions on the back and then fill out this page) Order-64-Printed by Beigong Consumer Cooperative of Central Central Bureau of Economic Affairs System A 7 _B7__ V. Description of the invention (62) A modification of the second aspect One omission of the core portion of the electric coil is not essential. In the modification of the second aspect of the present embodiment, the linear motor The lengths of the cores 1 2 F and 1 2 L of 6 F and 6 L are set to be able to wind the electrical coils CF1 a to CF1 r and CL1 a to CL1 r of the first group. —The third aspect is in this book In the third aspect of the embodiment, the linear motors 6 F, 6 L shown in FIGS. 5 4 or 28 are used. The linear motors 6 F and 6 L are connected to the power supply circuits VC and VD as shown in FIG. 60A. That is, the first group electrical coils CFla to CFlr of the linear motors 6 F and 6 L are connected. And CLla ~ CLlr, in the same way as the first and second aspects of the present embodiment, the three-phase AC is added by the power circuit VC having the three-phase AC output of the same structure as the power circuit shown in FIG. 31. However, in the electric coils CF 2 a to CF 2 r and CL2 a to CL2 r of the second group, the DC power supply circuit VD shown in FIG. 6 OB is used to turn on or off. In FIG. 6 0B The DC power supply circuit VD shown in Fig. 3 removes the transistor 4 7 A from the power supply circuit shown in Fig. 3 1 and directly outputs the DC voltage of the capacitor 4 6 A. The DC power supply circuit shown in Fig. 6 0 B The DC output voltage of VD is determined according to the line voltage command value Vc d supplied to the phase angle α calculator 76 d. When Vc d is 0 level, the gate driver 7 d does not generate a trigger signal, so The thyristor bridge 7 2d will be in the state of 0fF, and the DC output voltage will become 0. This paper standard · Zhongguanjiazhuan (CN S &gt; Ege (21GX297mm) ---------- · (-------? 1 ------ I (Please read the notes on the back before filling this page ) -65-A7 302310 B7 5. Description of the invention (63) That is, the energization of the electrical coils CF 2 a ~ CF 2 r and CL2 a ~ CL2 r of the second group will be cut off. When the coil voltage command value V cd When gradually rising, before the zero-crossing point of 3-phase AC is input, the gate driver 7 7 d will generate a trigger signal to turn on the thyristor bridge 7 2 d. The DC current flowing through the electric coils CF2 a to CF2 r and CL2 a to CL2 r of the second group will be affected by the surface laminar flow 3 8 (circle 6 1A) of the molten gold in the second and fourth spaces. A braking force is provided, which becomes stronger as the DC output voltage of the DC power supply circuit VD rises. If it is set to be large, it can be used to make the flow velocity distribution of the circulating flow indicated by the solid arrow of circle 6 1 C uniform, and the electrical coils CF1 a to CF1 r and CL1 a of the first group The AC current value of ~ CL1 r (which affects the linear driving force in the first space and the third space) becomes smaller. However, the velocity of the surface flow will become lower. When the velocity of the surface flow becomes higher, it is better to reduce the braking force and increase the linear driving force. In the first aspect of this embodiment, as shown in 60 A, two sets of AC power supply circuits VC and two sets of DC power supply circuits VD are provided, and this can be done in the first to fourth spaces. Adjustment. In addition, three-phase AC is applied to the first group of electric coils of linear motors 6 f and 6 L, and DC is applied to the second group of electric coils. -Modification 1 of the third aspect In the modification of the third aspect of this embodiment, the AC power supply circuit VC is regarded as one set, and it is applicable to the electrical coils of the linear motors 6 F and 6 L. China National Standard (CNS) A4 specification (210X297mm) ^ '一 ------ tr ------ "(please read the precautions on the back before filling this page) Bei Gong, Central Bureau of Standards, Ministry of Economic Affairs Printed by Consumer Cooperatives-66-Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs A7 ___B7__ V. Description of invention (64) Provides a 3-phase AC, and treats the DC power circuit VD as a group, for linear motors 6 F and 6 The electric coil supply of the second group of L is a direct current. In the modified example, the AC current value of the first group of electric coils of the linear motors 6 F and 6 L cannot be adjusted individually or the DC current value of the second group cannot be adjusted individually. However, due to the relative space within the yoke Since the immersion nozzle 2 is actually bilaterally symmetrical, this modification can bring sufficient effects. According to the features of this embodiment, since a linear motor having cores with different groove depths facing each other is used, The components of the electromagnetic force in the y direction will essentially disappear without generating eddy currents, and essentially only produce surface flow. Therefore, the effect of preventing dust from being caught is extremely high. Also, near the inner surface of the long side of the die, the electromagnetic force on the outer edge of the adjacent vortex is continuous, and the y-direction component is extremely small, in other words, along the die The full length of the long side (X direction), the electromagnetic force components are equal in the X direction, and the surface flow in a certain direction (X direction) and a certain speed is brought, so that the cleaning effect of the inner surface of the mold becomes uniform, and the bubble float is promoted. Next, the sixth embodiment of the present invention will be described. In the past, as shown in FIG. 62 (A), a molten tundish 80 used for injecting molten gold into the mold 3 was injected into the molten metal from the pot portion 7 9. When the pot portion 7 9 was replaced, The height of the molten metal in the feeding furnace 80 will temporarily decrease. Therefore, the injection pressure from the feeding furnace 80 to the mold 80 will change during the replacement cycle X of the pot portion 79, as shown by circle 6 2B, The binding speed will change. When the mold speed decreases, the cast piece is called a low-quality Q piece and becomes a defective product. In addition, the paper standard is driven by the previous linear motors. The Chinese national standard (CNS) A4 specification (210X297 mm) is applicable (please read the precautions on the back before filling out this page). Order -67-A7 £ 7_ V. Description of invention (65) Although the above-mentioned circulating flow is generated by dynamic melting of gold, it is impossible to adjust or control the surface flow to suppress the low-quality Q-chips produced when the injection pressure fluctuates. The purpose of this embodiment is to provide a flow rate control device that can adjust or control the surface laminar flow corresponding to the change in the operating conditions of the furnace. The continuous casting device of this embodiment, as shown in FIGS. 6 3 to 6 8, includes: a plurality of grooves distributed along the direction 1 OF of one side of the yoke mold side of the molten gold in Baoyuan 1 (BF 1 a, etc.) the first group of linear motors (6F) composed of the magnetic core 1 2 F and multiple electrical coils (CF 1 a, etc.) inserted into each groove; A magnetic core (1 2 L) with a plurality of grooves (BL 1 a, etc.) distributed on one side opposite to the other side by 10 L is combined with a plurality of electrical coils (CL 1 a, etc.) inserted into each groove. Printed into the second group of linear motors (6 L); Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the precautions on the back before filling this page). For the linear motors of the first and second groups (6F, 6L) The electrical means of energizing Tongning (CC1, 12a / CC2, 12b / CC3, 12c / CC4, 12d); multiple positions on the upper surface of the molten metal surrounding the space around the edge of the mold The flow rate detection means (91a ~ 91d, 98a) of the flow rate (vs 1 ~ vs 4) of the metal surface layer; convert the detected flow rate (vs 1 ~ vs 4) into the pre-set The flow velocity conversion means (98c>) of each flow velocity component (Ms, Mp, Ma, Mt) of the flow velocity distribution pattern of the multiple surface layers; the paper size scale applies the Chinese National Standard (CNS) A4 specification (210X297 Gong; l) -68- A7 B7 Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Description of the invention (66) 1 I Divide the converted flow velocity component (Μ Ｍ Ｍ Ｍ Ｍ a &gt; Μ t) into 1 | Different from each model Μ S 0 Μ Ρ 0 Μ a 0 y Μ t 0 1 I) Comparing 9 with each other to create the compensation amount of the flow velocity component deviation (d Μ s 9 d Μ Ρ 9-· -S please 1 1 d Μ ad Μ t) Method of extraction (9 8 c) • ♦ First read 1 1 to reversely convert the flow rate component deviation (d 1 1 of the back Λ of d M S 9 d M P 9 d M a 9 d M t) into melting at the above-mentioned multiple positions The flow velocity deviation of the surface layer of Jinyu Yihua 1 1 (d V 1 d V 4) inverse conversion means (9 8 c) and then 1 if the flow velocity deviation (d V 1 d V 4) becomes zero 9 Writing • g * I The above-mentioned energization means to control the above-mentioned first and second groups of linear horses Ά 1 1 1 up to (6 F 9 6 L) current value energization control means (9 8 C) Ο 1 1 in The flow velocity 9 of each part of the surface layer of the molten metal is a vector sum of the flow velocity (component) in the direction of the multiple 1-1 direction. Therefore, 9 each surface of the molten gold and the surface part of the molten metal is defined at a plurality of positions on the surface of the molten metal. The flow rate (VS 1 VS 1 | 4) 9 can be expressed by the combination of multiple surface layer velocity distribution patterns (components) 1 1 9 Similarly, the target flow rate distribution can also be obtained by multiple surface layers 1 1 Breaking velocity The combination of the distribution mode (composition value) is expressed. In addition, when 1 corresponds to the operating state and the surface flow velocity distribution is to be changed to the optimal state, 1 1 can be changed according to the operating state. 1 1 Ingredient g Standard value) combination situation (Μ S 0 9 Μ Ρ 0 9 Μ a 0 9 1 | Μ t 0) 9 and brings the best flow velocity distribution (VS 1 VS 4) 〇1 I according to this embodiment of the continuous performance Yung-making device 9 Flow velocity conversion means (1 1 | 9 8 C) is to decompose the actual flow velocity of the surface layer (detected value VS 1 1 1 VS 4) into multiple components of the surface layer velocity distribution pattern (component) 1 1 Value (Μ S 9 Μ P 9 Μ a 9 Μ t) 9 and the compensation calculation method (1 1 The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) -69-Central Sample Bureau of the Ministry of Economic Affairs Beigong Consumer Cooperation Du Printed A7 __B7 _ V. Description of the invention (67) 98c), then calculate the component values (Ms, Mp, Ma, Mt) corresponding to the target value (Mso, Mp〇, Mao, Mt 〇) ) Deviation (dMs, dMp, dMa, dMt), and the inverse conversion means (98c), inversely convert these component deviations (dMs, dMp, dMa, dMt) into the deviation of the actual flow velocity distribution (dvl ~ dv4 ), And the power-on control means (98c), if the flow rate Difference (dvl~dv4), camel becomes zero, i.e., provide a compensation offset (d v 1~d v 4) the flow rate of each part of the surface layer, controlling the linear motor electromagnetic force imposed on the molten metal. By this, the flow velocity distribution of the surface layer of molten gold is designated by the combination (Ms ο, Mpo, Mao, Mt 〇) of a plurality of surface layer flow velocity distribution patterns (component target values) (Mso, Mpo, Mao, Mt 〇 inverse conversion into the actual flow rate). When the flow rate of each part of the surface part of molten gold is individually adjusted or controlled, the flow rate change caused by the adjustment of a certain part will cause interference to other parts, so there will be adjustments for each part Either the control cannot obtain the expected flow rate distribution or it will take more time to adjust or close. The continuous casting device of this embodiment can automatically and quickly bring the target flow velocity distribution only by changing the target value (Mso, Mpo, Mao, Mto) to bring the expected flow velocity distribution. It is easy to set, change or adjust the flow velocity distribution. In addition, when the injection speed into the mold is reduced due to the replacement of the pot portion 79, the stirring mode is enhanced (Figure 7 2A), which can compensate for the decrease in the surface flow caused by the decrease in the injection speed from the immersion nozzle 2, Can avoid this paper standard is applicable to the Chinese National Standard (CNS) Α4 specification (210X297 mm) I --------- {------- 1T ------ Μ I (please read first (Notes on the back and then fill out this page) -70-A7 _B7_ printed by the Employees ’Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs V. Description of invention (68) Timely change and operation to avoid defective Q-pieces or shorten the length of Q-pieces, etc. The change of state is corresponding to the form of impulse or dynamic. The present embodiment will be described in more detail below. Fig. 6 3 shows a horizontally cut section of the inner wall 31 shown in Fig. 2 7 at the cores 12F and 12L of the linear motors 6F and 6L. The inner wall 3 1 of the mold is composed of long sides 1 0 F, 1 0 L facing each other and short sides 1 1 R, 1 1 L facing each other, each side is made of non-magnetic stainless steel plate 3 2F, 3 2L, 3 6R, 3 6L are formed against copper plates 3 3F, 3 3L, 35R, 3 5L. In this embodiment, the cores 1 2 F, 12L of the linear motors 6 F, 6 L are slightly longer than the effective length of the long side of the mold 10F, 10L (the length in the X direction that is in contact with the molten gold 1). For the whole length, 36 grooves are cut at a certain interval. Above the molten gold oxide 1, the flow velocity detectors 9 1 a to 9 1 d are suspended by a stand not shown, and the flow velocity value is reduced as necessary to measure the surface portion of the molten metal 1 Flow rate (surface flow rate). Each detector 9 1 a to 9 1 d measures each space (1st to 4th space) divided into 4 points in the mold. Fig. 64 shows the phase division and group division of the electrical coils shown in Fig. 63.囵 6 5 is the wiring of all electrical coils shown in Figure 6-3. The junction line is a 4-pole (N = 4) structure, and a 3-phase AC is communicated to the electrical coil. For example, the linear motor 6 卩 井 1, # 2 group of electrical coils (# 1: CFla ~ CFlr) '1 # 2' CF20 ~ CF2r), in Figure 65, in order u, u, the paper size Applicable to China National Standard (CNS) A4 specification (21 OX 297 mm) (please read the precautions on the back before filling in this page) /. 、? Τ -71-DuPont Printing Co., Ltd. of the Ministry of Economic Affairs 3ϋ2310 α7 _ Β7 5. Description of the invention (69) u, V, V, V, w »w, w, U, U, U, U, v, v, v, W, W, W, and well 3, # 4 groups of electrical coils (well 3: CLla ~ CLlr), (# 4, CL2a ~ CL2r), then u, u, u, V, V, V, w, w, w, U, U, U , V, v, v, W, W, W to represent. In addition, "U" indicates the positive phase energization of the U phase of the 3-phase AC (constant energization), "UJ indicates the reverse phase energization of the U phase (energization deviated from the U phase by 180 degrees), and the electric coil is" "U", the U-phase is added at the beginning of its winding, and U-phase is added at the end of the winding of the electrical coil "u". In the same way, "V" indicates the positive phase energization of the 3-phase AC V-phase, "V" indicates the positive-phase energization of the V-phase, "W" indicates the positive-phase energization of the W-phase of the 3-phase AC, and "w" indicates the W Energize the opposite phase. The terminals Ul, VI, W1 and U2, V2, W2 shown in FIG. 65 are the power connection terminals of the linear motors 6i, 1 group, and 2 groups of electrical coils CF1 a ~ CF1 r, CF2 a ~ CF2 r, The terminals U3, V3, W4 and U4, V4, W 4 are the power connection terminals of the electric coils CL 1 a ~ CL 1 r, CL2 a ~ CL2r of the # 3 group of linear motor 6 L and the electric coils of the well 4 group. In each groove of the core body 1 2 F of the linear motor 6 F, # 1 group electrical coils CF 1 a to CF 1 r and # 2 group electrical coils CF2 a to CF2 r are installed. Similarly, # 3 group of electric coils CL1 a to CL1 r and four groups of electric coils CL2 a to CL2 r are installed in the grooves of the core hip 12 c of the linear motor 6L. In addition, although the linear motors 6 F and 6 L are provided to the molten gold alloy 1-as shown by the arrow shown in the arrow of Fig. 7 2 A, they can also be applied to the Chinese National Standard (CNS) as the paper standard A4 specification (210X297mm) (please read the precautions on the back before filling in this page) Order-72-Printed by the Ministry of Economic Affairs Central Standards Bureau Beigongxiao F Cooperative A7 B7 5. Description of invention (70) The function of applying braking force to the molten metal 1 by direct current energization. By injecting molten gold into the thin mold from the dipping nozzle 2, the molten gold in the casting mold can produce the flow of molten gold as shown in FIG. 71 (C), by which it can produce the flow shown in FIG. 7 1 A The surface flow shown 3 8. In Fig. 7 1C and 囵 7 1A. Although the flow of molten metal is symmetrical with the immersion nozzle 2 as the center, the actual injection of molten gold from the immersion nozzle 2 is asymmetrical in the left-right direction. At this time, the surface flow becomes asymmetrical. As for the stirring of molten gold, it is better to be as shown in FIG. 7 2 A. Generally speaking, in the linear motors 6 F and 6 L, a surface laminar flow shown in 7 1 A can be applied to the molten metal 1 The electromagnetic force changes to the surface laminar flow shown in FIG. 7 2 A, but the surface laminar flow of molten gold is not limited to the state shown in FIG. 7 1 A or FIG. 7 2 A. Here, in order to analyze the surface laminar flow of molten metal, in this embodiment, the actual surface laminar flow can be regarded as the surface laminar flow (component s) of the stirring mode shown in FIG. 7 2 A, and the parallel mode shown in FIG. 72B The vector sum of the surface laminar flow (p), the surface laminar flow (component a) in the acceleration mode shown in FIG. 72C and the surface laminar flow (component t) in the torsional mode shown in FIG. 72D. In addition, in each mode, the absolute value of each calendar calendar (4 arrows) is set to be the same. (a) The surface flow of the stirring mode is in the same direction along the mold side in the first and second spaces, and in the same direction along the mold side even in the third and fourth spaces. Here, in The entire space in the opposite direction to the direction under the first and second spaces. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (2 丨 0X297mm) -I---I-I-In 1 <-n -1-1 (Please read the precautions on the back before filling in this page) -73-A7 B7 Printed by the Employees Consumer Cooperative of the Central Bureau of Samples of the Ministry of Economic Affairs V. Invention Instructions (71) The absolute value of the flow rate is the same. In addition, the first to fourth spaces are shown in Figure 63 (Figure 72A). (b) Surface flow in parallel mode In all spaces from 1st to 4th, along the edge of the die, the flow velocity is the same in the same direction. (圔 7 2B). (c) The surface flow in the acceleration mode is the same in all directions from the first to fourth spaces, along the edge of the die and toward the nozzle member (Figure 7 2C) (d) The surface flow in the torsional mode In the first and second spaces, in the direction away from the nozzle member along the edge of the yoke, and in the third and fourth spaces, in the direction along the edge of the die and toward the nozzle member, the absolute flow velocity The value is the same in all spaces (Fig. 74D). Please refer to Figure 6 3 again. In this embodiment, the flow rates of the surface laminar flows of molten gold 1 in the mold 3 in the first to fourth spaces are detected by the flow rate detectors 9 1 a to 9 1 d, respectively. In FIGS. 69A and 69B, and FIGS. 7OA and 7OB show the structure of the flow rate detector. Fig. 6 9 (A) shows the case of the flow rate detector 9 1 a, the side walls of 139, 140, and Fig. 69 (B) is the cross-sectional wall of line E-E in Fig. 69 (A). Flow rate detector 9 1 a, when measuring the flow rate, the front end will be immersed in the molten metal 1, and the paper standard made of molybdenum cermet applies the Chinese National Standard (CNS) A4 specification (210X297 mm) J (please Read the precautions on the back first and then fill out this page), τ 302310 printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7_ V. The invention description (72) is made of a plate 1 3 0. The plate body 130 is supported on the support plate 1 3 1 a by the support shaft 1 3 1 b and can move freely. The lower end of the spring plate 1 3 3 is fixed to the support plate 1 3 1 a. The upper end of the spring plate 1 3 3 is fixed to the fixing plate 1 3 7 a. The fixing plate 1 3 7 a is integrated with the hollow tube 1 4 3. On the surface of the spring plate 1 3 3, strain gauges 1 3 5 a, 1 3 5 b are attached to the back, which are connected to the strain gauge 1 3 The signal line 1 3 6 a of 5 a, 1 3 5 b passes through the hollow tube 1 4 3, and the housing 1 3 9 used to protect the detector is fixed to the hollow tube 1 4 3, with its lower opening 1 3 4 is for the spring plate 1 3 3 to penetrate. The housing 1 3 9 is inserted into the front end of the outer arm 1 40 as a support arm. The ventilation pipe 1 4 2 located in the outer casing 1 4 0 is connected to the inner space of the outer casing 1 3 9, and the cooling air is blown into the outer casing 1 3 9 through the ventilation pipe 1 4 2. The part of the cooling air passes from the housing 1 3 9 through the opening 1 3 4 to the outside, but the other part enters the housing 1 4 0 from the housing 1 3 9 through the opening 1 3 4 and passes through The inner space of the housing 1 4 0 is released to the outside from the support base (not shown) of the housing 1 4 0. When the casing 1 4 0 is lowered to the set position, the lower end of the plate 1 3 0, as shown in FIG. 7 0 (A) ·, is immersed in the molten gold lift 1 and is pushed by the surface laminar flow . This force is applied to the spring plate 1 3 3, and the spring plate 1 33 is bent at the strain gauges 1 35a, 1 3 5b. Therefore, one of the strain gauges 1 3 5 a, 1 3 5 b acts The stress should be contracted, while the tensile stress acts on the other. The strain gauges 1 3 5 a, 1 3 5 b, as shown in FIGS. 7 0 A and 7 0 B (and FIG. 6 6), are connected to the flow rate detection circuit 9 8 a strain gauge 1 8 1, The scale of this strain sheet is applicable to China National Standard (CNS) A4 (210X297mm) (please read the precautions on the back before filling this page)

-75-S02310 A7 B7 V. Description of the invention (73) (Please read the precautions on the back before filling in this page) The gauge 181 generates a signal representing the difference between the detection signals of the strain gauges 135a and 135b. The differential signal passes through the filter 18 2 and only the low frequency part is supplied to the amplifier 18 3. The amplifier 1 8 3 converts the differential signal into a flow rate signal vsl (direction and speed), which is supplied to the A / D conversion input of the CPU 9 8 c (Figure 6 6) via the input interface 9 8b (Figure 6 6) port. For example, in the flow of molten gold hurricane 1, in Fig. 7 A, when it is in the direction of the arrow, force F [N] is applied to the plate 1 30a. At this time, when the impedance coefficient is set to Cd, the specific heat of the molten steel is set to p, the cross section is set to S, and the flow rate is set to V S, then F can be expressed by the formula. F = CdX / a xv2XS / 2g ...... (1) With this force set to F, the plate χ 3 〇 will be pushed toward the flow direction of molten gold slant 1 and inclined. This force can be detected by the strain gauge. When the detection value of the strain gauge is set to ε, it is printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs

ε = k XFXL ...... (2) Substitute (1) into (2), e = kXCdXpXvs2xS / 2gxL ...... m by (3) This paper size applies to China-76-Economy Printed by the Ministry of Standards and Standards Bureau employee consumer cooperative A7 ______B7_ V. Description of invention (74) vs = / v ^ ~ {e / (kXCdXpXS / 2gXL)} The electrical circuit from strain gauge to flow rate detection circuit 9 8 a Based on this principle, the flow velocity vs is calculated, and the signal vs 1 indicating this is supplied to the CPU 18 8 c. Other flow velocity detectors 9 1 b to 9 1 d have the same structure and the same function as the flow velocity detector 91 a. Similarly, it is connected to the flow velocity detection circuit 98 a, and supplies signals representing the flow velocity vs 2 to vs 4 (direction and velocity) of the surface flow in the 2nd to 4th spaces to the CPU 9 8 c. FIG. 66 An outline of the configuration of an electric circuit that energizes the electric coils shown in FIG. 63 (and FIGS. 64 and 65), respectively. In addition, FIG. 67 is a table from the arithmetic processing device 9 shown in FIG. 66 to the power supply circuit 9 2 a to 9 2 d, that is, from the arithmetic processing device 9 to the electrical coil well 1, and 2, # 3, # 4 of the power connection terminals U1, V1, W1, U2, V2, W2, U3, V3 »W3, U4, V4, W4 electrical circuit to a little more detailed content. Fig. 6 8 shows the structure of the power supply circuit 9 2 a and energization controller CC 1 shown in the watch circle 6 7. Below, please refer to each figure to explain. In this embodiment, the velocity (direction and magnitude) of each surface flow in the first to fourth spaces in the mold MD is measured by the flow velocity detector 9 1 a, 9 1 b, 9 1 c, 9 1 d , And provided to the calculation processing device 98. Here, the flow rate measured by the detectors 9 1 a to 9 1 d is set to v s 1 to v s 4. Measured at each flow rate detector 9 1 a ~ 9 1 d. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) (please read the precautions on the back before filling this page)

-77-All ⑷ 302310 A7 B7 V. Description of the invention (75) The measured flow rate setting value v s 1 ~ v S 4 is input into the CPU 9 8 c of the illustrated calculation processing device S9 8. CPU9 8 c, according to the sub-form, the measurement value vs 1 ~ vs 4 is decomposed into the composition shown in Figure 7 2 A ~ 7 2 D in each of the formula · The value of MS (stirring mode flow rate), Mp ( Parallel mode flow rate), Ma (acceleration mode flow rate) and Mt (torsion mode flow rate). S Ms • 1 1 1 V 1 vs 1 Μ p M a = (1/4) 1 1 -1 -1 vs 2 1 -1 1 -1 vs 3 、 Mt〆 、 一 1 1 1 工 〆 、 vs 4 〆In addition, the deviations of the component values Ms, Mp, Ma, and Mt of each mode with respect to each item value Ms ο, Μρ ο, Ma 〇, and Mt 〇 set in the CPU 98 c are calculated. dMs = Ms o— Ms »dMp = Mpo— Μρ, dMa = Ms a— Ma, dMt = Mt o— Mt ° Also, CPU9 8 c, according to the operation not shown here, the display panel will be operated by The target velocity distribution (corresponding to the four values of the above-mentioned measurement values) entered by the author is decomposed into various modes according to the above formula (4). The paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) -------- {i ------ 、 玎 ------ fr Jing first read the notes on the back ¾ then fill out this page j Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 78- 3ΰ £ 310 Α7 Β7 V. Description of the invention (76) The component target values Ms 〇, Mpo, Mao and Mt ο, and store them in a temporary register to make it the target value. CPU9 8 c, then, according to the following formula (5), the set of these deviation values dMs, dMp, dMa, dMt are combined to calculate the flow velocity deviation dv 1 ~ dv 4, that is, the inverse conversion of the mode component deviation The flow rate deviation dv 1 to dv 4 corresponding to the measurement value is obtained. dv 1 dv 2 dv 3 dv 4 1 1 1 1 1 1 1 1 1 1 1 1 1 — 1 — 1 -1 dMs dMp dMa 〆⑸ (please read the $ item on the back first and then fill in this page) The Employee Consumer Cooperative Printing Group # 4 Group is followed by self-divided value (compared to the motor site, and will be stored (update V i 1 ~ well 4 electricity V s 1 ~ current bias) V s 1,

Flow rate deviation d In the electric coil, the flow control is turned on, and the current value of the applied electromagnetic current is obtained, and the value of V is divided into temporary storage V i 4 V s 4 of the gas coil group. However, for the source f 1 and V v 1 ~ dv 4, the flow rate that should be compensated will be the current linear motor driving state force), and added to the calculated i 1 ~ V i 4 as the device Content), the power supply circuit 9 2 a ~ electrical frequency f 1 ~ f 4 circuit 3 0 a energized B 1 is necessary to calculate the flow rate shown, the power supply circuit becomes # 1 ~ ° CPU 9 8 c, the flow rate The deviation of 稹, that is, it means that the new 紹 sub-value of the line is stored by dv 1 ~ dv 4 to produce the output "voltage and DC voltage (direct controller connected by # 1 ~ 9 2 d CC 1 instruction 3 0 b power-on control This paper standard is applicable to the Chinese National Standard (CNS> A4 specifications (2 丨 OX297 mm) -79-A7 _____B7_ printed by the Employee Consumer Cooperative of the Central Prototype Bureau of the Ministry of Economic Affairs 77) The device CC2 instructs Vs 2, f 2 and VB2 to indicate Vs 3, f 3 to the power supply controller CC3 of the power supply circuit 30c, and VB 3 to indicate Vs4 to the power supply controller CC 4 of the power supply circuit 30d , F4, and VB4. In addition, the CPU98c has a voltage Vs and a frequency f in Dat map of DC voltage VB (table, a field of elegant memory) 'By accessing this data map, it is possible to read vs. 1 and f corresponding to 犹 分 値 V i 1 — Vi 4 1 and VB1, Vs2, f 2 and VB2, VS3, f 3 and VB3, and Vs4, f 4 and VB 4, and output each of these power-on controllers. The data map is stored when the Zhenfen value is negative ( The flow direction in the stirring mode is in the opposite direction), then the frequency f = 〇, and as the absolute value of the Zhenfen value increases, the Vs, VB will become higher, and when the integral value is positive (flow in the stirring mode) Direction, then as the value of 稹 is larger, f will change, V s will become higher, and VB will become lower. The 7 7 series is based on the above measurement value of CPU 9 8 c Vs 1 ~ Vs 4 to Calculate the command value Vs 1 ~ Vs 4, f 1 ~ f 4 and VB1 ~ VB4 calculation process. CPU9 8 c, then output the calculated Vs 1, f 1 and VB 1 to the power-on controller CC 1 and Vs 2, f 2 and VB2 are output to the power-on controller CC2, Vs 3, f 3, and VB3 are output to the power-on controller CC3, and Vs 4, f 4 and VB4 are output to the power-on controller CC4 ( (Figure 6 6, Figure 6 7). Figure 6 8 shows the linear motor 6 F combined with 1 group of electrical coils. This paper standard is applicable to China National Standards (CNS) A4 specifications (210X 297 mm) (please read first (Notes on the back then fill this page)

-80-Α7 30 ^ 310 Β7_ V. Description of the invention (78) (Please read the precautions on the back before filling in this page) The composition of the power-on controller CC 1 and the power circuit 3 O a. A 3-phase AC power supply (3-phase power line) 4 1 is connected to a thyristor bridge 4 2 a for DC rectification, and its output (pulse wave) is smoothed by an inductor 4 5 a and a capacitor 4 6 a. The smoothed DC voltage is applied to the power transistor hip bridge 4 7 a used to form a 3-phase AC, and the 3-phase AC U-phase output from this is applied to the power connection shown in FIG. 6 4 The terminal U 1, the V phase is externally applied to the power connection terminal U 1, and the W phase is externally applied to the power connection terminal W1. The constant coil voltage designation value Vs 1 supplied to the linear coils 6 of the 1 well group of electric coils CF 1 a to CF 1 r is supplied to the phase angle α calculator 4 4 a in the energization controller CC 1 Then, the phase angle α calculator 4 4 a calculates the conduction phase angle α (thyristor hip trigger phase angle) corresponding to the command value Vs 1, and supplies a signal indicating this to the gate driver 4 3 a. The gate driver 4 3 a starts counting the phases from the zero crossing point of each phase, and at the phase angle α, the gate fluid of each phase is turned on and triggered. As a result, a DC voltage indicated by the indication value Vs 1 is applied to the transistor bridge 47a. Printed by the Beigong Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. On the other hand, in the power-on controller CC 1, the 3-phase signal generator 5 1 a generates the frequency specified by the frequency command value f 1 (in this embodiment, it is 0 ~ 2 0 0Hz), and has a DC bias voltage indicated by the DC bias command VB 1 and the voltage between the peaks and valleys is constant (however, f = 0 is 0), and will be It is supplied to the comparator 4 9 a. In the comparator 4 9 a, the triangle paper generator 50 a supplies the fixed paper size with a certain frequency (high frequency, in this embodiment 3 KHz). The paper size is in accordance with the Chinese National Standard (CNS) A4 specification (210X297 mm) -81-A7 ___B7_ printed by the employee consumer cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs V. Invention description (79) Voltage triangle wave. Comparator 4 9 a, when the level of the U-phase signal is positive, when it is above the level of the triangular wave provided by the triangular wave generator 50 a, it is the signal of the high level H (transistor The skull is connected), and when the level of the triangle wave is not full, it is the signal of low level L (transistor cut off), which is output to the gate in the positive interval of U phase (0-180 degrees) Driver 4 8 a, and when the level of the U-phase signal is negative, when it is below the level of the triangular wave provided by the triangular wave generator 50 a, it is the signal of the high level H, when it exceeds the triangular wave When the level is low, it is the signal of low level L, which is output to the gate driver 4 8 a in the negative interval of U phase (1 8 0 ~ 3 6 0 degrees). The same applies to the V-phase signal and the W signal. The gate driver 4 8 a performs ON / OFF control of each transistor of the transistor bridge 4 7 a corresponding to the signals in the positive and negative sections of each phase. Therefore, when it is not f = 0, the U-phase m voltage of the 3-phase AC will be output to the power connection terminal U 1, and the V-phase voltage of the 3-phase AC will be output to the power connection terminal VI, and the 3-phase AC The W phase cyanide voltage will be output to the power connection terminal W1. These voltage level criteria are determined by the coil voltage command value Vs 1, that is, when it is not f = 0, it has the coil voltage command value Vs 1. The specified voltage value, the frequency specified by f 1 and the 3-phase AC voltage of the DC bias specified by VB will be applied to the linear motor 6 F # 1 group shown in Figure 6 3 and Figure 6 4. The electrical coil CF 1 a ~ CF 1 r. The power controller CC 2 — CC 4 and the power circuit 3 0 b ~ 30d are the same as the CC1, 20a, and the Chinese standard (CNS) A4 specifications (210X297 mm) are used in this paper standard. -82-(please read the precautions on the back before filling in this page) Order-! Printed by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 302310 at _ _B7___ 5. Description of the invention (80) # 2 Group of cyanide coil CF 2 a ~ CF 2 r, # 3 group of electrical coils CL 1 a ~ CL 1 r and # 4 group of electrical coils are applied with 3-phase AC voltage determined by Vs 2 ~ Vs 4, f 2 ~ f 4 and VB2 ~ VB4 . Therefore, in this embodiment, the linear motors 6 F, 6 L of the 4-pole structure, when f is not 0, three-phase AC is added, and by the linear motors 6F, 6L, the inner wall 3 of the mold The molten gold 1 in 1 exerts a thrust corresponding to the Zhenfen values Vi 1 to Vi 4, and when f = 0, the braking force is applied. Therefore, due to the injection of molten metal from the immersion nozzle 2 The flow will be converged into the target flow velocity distribution specified by the operator. Even if the inflow speed of molten gold from the immersion nozzle 2 is changed due to the operating conditions of the tundish, the molten metal can be produced close to the target flow velocity distribution specified by the operator Surface flow. When the flow rate of each part of the surface part of molten gold is individually adjusted or controlled, the flow rate change caused by the adjustment of a certain part will cause interference to other parts, so there will be adjustments for each part Either the control cannot obtain the desired flow rate distribution or it takes a lot of time to adjust or close the beam. The continuous performance of this embodiment makes β, and only by changing the head flow rate (Mso, Mpo, Mao, Meo) to the expected flow rate distribution that can be brought, the flow rate distribution of the head purse can be automatically and quickly brought , So it is easy to set, change or adjust the flow velocity distribution. In addition, when the injection speed of the casting mold is reduced due to the replacement of the pot part 79, the stirring mode is enhanced (Figure 7 2 (A)), which can make up for the paper standard applicable to the Chinese National Standard (CNS) A4 specification (210X 297 Mm) I -------- ". Clothing ------ 1T ------ f (please read the notes on the back before filling out this page) ~ 83 ~ application case Minxing Zhong December B7 repair &amp;

V. Description of the invention (81) Due to the reduction of the surface laminar flow caused by the decrease of the injection speed from the immersion nozzle 2, it is possible to avoid the production of defective Q-pieces or shorten the length of the Q-pieces. Appropriate changes correspond to changes in the operating state The driving form or driving force 9 is available in the industry. As described above, the continuous casting method and apparatus of the present invention are advantageous in obtaining continuous cast slabs of steel and other gold slabs without surface defects such as longitudinal cracks. [Description of symbols] 1: Molten metal, 2: Immersion nozzle, 3: Mould, 4: Solidification tube, Printed by the Employee Consumer Cooperative of the Central Standard Falcon Bureau of the Ministry of Economic Affairs (please read the precautions on the back and fill in this page) 5: Bend Lunar surface (above the molten gold), 6a, 6b: electromagnetic stirring coil part, 6F, 6L: linear motor, 7: junction box, 8, 24 ~ 29: power circuit, 9: command box, 10: mold length Side, 11: short side of the mold, 12: core, 13: groove, 14: coil, 21: switch box, 22: control box, 23: sensor, 30: energization means, 3 1: inside Wall, 32, 36: Stainless steel plate, 33, 35: Copper plate, 34: Water tank, 37: Dust, 38: Surface flow, 39: Outlet, CF, CL: Coil, 41, 71: Power supply, 42, 72: Gate Fluid bridge, 43, 48, 77: gate driver, 44, 76: phase angle α calculator, 45, 73: inductor, 46, 74: capacitor, 47: power transistor bridge, 49: comparator, 50: triangle wave Generator, 51: 3-phase signal generator, S: temperature detection means, 61, 65: signal processing circuit, 62, 66: analog gate, 63: temperature distribution control means, 64, 67: high temperature value extraction Paper scale applicable Chinese national Su Falcon (CNS) Α4 Specification (210Χ29 &lt; 7 mm) -84 - 302310 at _B7 V. invention is described in (82)

Printed out processing methods by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs »BF 9 BL: ditch &gt; VC AC power supply circuit 1 VD; DC power supply circuit, 7 9 pot section &gt; 8 0: feed furnace * 8 1 casting 9 9 1 Flow rate detection method> 9 3; Converter »9 4 Inverter> 9 5 t 9 6 Gate driver 0 9 8 Calculation processing device> 9 8 a Flow rate detection circuit 9 8 b; Input interface * 9 8 C; controller y 9 8 d output interface CC; power-on controller> 1 3 0 plate luz. 1 3 1 a; support plate 1 3 1 b: support shaft> 1 3 3; spring plate »1 3 4; lower opening □ 1 3 5 strain gauge, 1 3 6: signal cable, 1 3 7 fixing plate 1 1 3 9 &gt; 1 4 0: housing 9 1 4 2; vent pipe »1 4 3: hollow pipe 1 8 1; strain gauge y 1 8 2 filter 9 1 8 3; amplifier 0 (please read the precautions on the back before filling this page) This paper scale is applicable to China National Standard (CNS) A4 specification (2 丨 0 X 297 Mm) -85-

Claims (1)

302310 Ϊ 8410015 Che special brake application if Λ Wenshenchai Patent Fan Garden Amendment Republic of China 85 &quot; || January Xiu ^^ (U: • Γ— .Ά 六 、 Apply for patent scope 1. One from the model Step into the mold by the coil part, along the electromagnetic force, the system flow almost becomes a central bureau of the Ministry of Economic Affairs Beigong Consumer Cooperative Printed the above-mentioned mouth of the two-generation electromagnetic with the extraction of the electromagnetic force The upper 4 parts of the electromagnetic stirring force and the components of the upper 4 parts of the electromagnetic stirring force are generated for the above steps. If the electromagnetic force is described above the electromagnetic force, the electromagnetic force is described. The above-mentioned electricity. If the application of the mixing coil is divided into the steps of continuous casting square tools; the above two molds of the two molds are used to make the above-mentioned patterns, and one of the molds is different from the mold. Please apply for a patent description Steps, the composition of the shape force component, please apply for the patent area, and it will be the 2 magnetic force. The patent area will be connected to the method, the main features include: the impregnation of the central part Nozzle injection melt The long side of the at least two electromagnetic stirrers provided on the long side of the gold plume produces rotation of the surface layer of the molten metal in the opposite direction to each other. The above-mentioned dipping nozzle faces the short side above the short side of the mold toward the above-mentioned dipping nozzle And; cooling is performed separately, and the metal surrounding item 1 is made larger than the mold when it is solidified. The gas surrounding the item 1 is divided into the electromagnetic stirrers, which are connected to the item 1 separately. The gas is divided into electromagnetic stirring and its power supply continuous casting method is used to produce the immersion nozzle toward the short side of the mold with the short side toward the above-mentioned immersion spray continuous casting method, each of which is divided into 2 parts, and the electromagnetic coil is divided Totally connected to other power circuits, continuous manufacturing method, the above are two parts, and the divided total circuit of the electromagnetic coil part is generated, and the above electromagnetic force is generated, please read the precautions on the back first. Write this page "Line-finding paper" • The standard applies to the National Standard (CNS) Α4 specification (210X297 mm) 302310 A8 B8 C8 D8 a. Patent scope 5. If the continuous casting method of the second patent application is applied, the above electromagnetic stirring coil parts are electrically divided into two parts, and the above steps of generating electromagnetic force are the total of the division of the electromagnetic stirring coil parts Any two of the four parts are connected to other power circuits to generate the above-mentioned electromagnetic force. 6. If the method of continuous application of the second item of the patent scope is applied, the above electromagnetic stirring coil parts are electrically The above step of dividing into two parts to generate electromagnetic force is to connect the divided four parts of the electromagnetic stirring coil part to other power supply circuits to generate the above-mentioned electromagnetic force. 7. A continuous casting device, It is mainly a self-immersed nozzle located in the center of the horizontal surface of the mold while injecting molten metal into the above-mentioned mold, while cooling a part of the above-mentioned mold while extracting the solidified metal, thereby continuously The continuous casting device for casting metal slabs is characterized by: It is installed along the long sides of the two dies and is controlled by electromagnetic force Two electromagnetic stirring coil parts for the flow of molten gold in the mold, each having a plurality of magnetic cores arranged along the long sides of the two molds and a plurality of coils wound around the magnetic cores respectively; At least one power supply circuit that generates three-phase or more alternating current of a certain frequency: On the long sides of the two molds, the two circuits composed of the coil and the connection mechanism are point-symmetric with respect to the immersion nozzle, and On (please read the notes on the back I fill in this page first)-Installation · Bookmarked by the Central Bureau of Standards of the Ministry of Economy, Economy and Economics, the Peking Consumer Cooperative printed paper size is applicable to China National Standard Rate (CNS) Α4 specifications (210X297 mm) 2 3 〇2Si〇A8 B8 C8 D8 * The scope of the patent application states that the two circuit division coil parts are connected to the upper 8. Such as the application mechanism, where this is connected in parallel and the source circuit is connected. 9. If there is no one circuit in the power supply circuit part. 1 0 If at least one power supply is divided into circuit parts 1 1 · If the electromagnetic stirring coil 1 2 · If at least one power supply has a certain frequency of 1 3. If at least one power supply is galvanically superimposed on the upper device, the device further includes: For detection acceptance The above please read the note on the back 1¾. The WC Industrial and Consumer Cooperatives printed by the Central Economic Development Bureau of the Ministry of Economic Affairs printed the application-specific circuit package. The application-specific department has the application-specific circuit 4Hz. The application-specific circuit has 2 descriptions. The profit range is 5 poles or more. The scope of the advantage is that the above difference can be divided into two circuit parts. At least one power circuit is added. Please refer to item 7 of the patent scope to connect the divided two circuit parts. The link of the item includes 2 power circuits, meaning that the combination of 2 and 2 is the power circuit of the 7th item, and the power supply above the 7th item, the 2nd phase of the 7th item, and the 7th phase of the 7th to the fused alternating current The output of the temperature detection mechanism of the temperature distribution of the mold is divided, and the connection mechanism that agitates the above electromagnetic is connected. Continuing the manufacturing equipment, the above-mentioned connected parts have different impedances and the other part is at least one electric continuous casting device, the total of the above-mentioned to the divided four are connected to other power continuous casting devices, the above, the divided Total 4 circuits》 Continuous casting device, the above magnetic core. Continuous casting device, the above-mentioned continuous casting device of the above-mentioned alternating current, the above-mentioned molten metal provides a device for the direct generation of braking, and the above-mentioned temperature detection mechanism and, while being located at the above-mentioned mold temperature -3-This paper size is used in China Standard (CNS) A4 specification (210X297 mm) 〇〇23i〇B8 C8 D8 Printed by the Industrial and Consumer Cooperative of the Central Bureau of Economic Development of the Ministry of Economic Affairs 6. The molten metal near the high degree of patent application provides a comparison with the above mold The molten gold at a low temperature is a large braking force, and controls the control mechanism for the at least one power supply circuit. 1 4. The continuous manufacturing equipment as claimed in item 7 of the patent scope further includes: V a temperature detection mechanism for detecting the temperature distribution of the above-mentioned mold and receiving the output of the above-mentioned temperature detection mechanism while being positioned at the low temperature of the above-mentioned mold The molten gold in the vicinity provides a greater driving force than the molten metal located at a higher temperature of the mold, and controls the control mechanism for the at least one power supply circuit. 1 5. As for the continuous manufacturing device of item 8 of the patent application scope, the coil is divided into two circuit parts, one of the circuit parts is connected by the Y-junction, and the other circuit part is connected by the △ -junction. 16. As in the continuous casting device of claim 8 of the patent application scope, the coils constituting the divided two circuit parts are connected in series, respectively, and the number of coils is different. 1 7. As for the continuous casting device of claim 8 of the patent application scope, the coil constituting the divided two circuit parts, one of the circuit parts is connected in series and the other circuit part is connected in parallel. 1 8. If the continuous casting device according to item 11 of the patent application scope, the above-mentioned two-phase or more AC power generated by the at least one power supply circuit has the above-mentioned certain frequency of 4 Hz or more. 1 9. If the patent application scope is 1st Item 1 continuous casting device, the intensity of the magnetic field generated by the above electromagnetic stirring coil is 1 2 0 〇AT / — ^-(please read the precautions on the back side h and fill out this page). China National Standards (CNS) A4 specification (210X297mm) -4-ABCD Central Bureau of Economic Development β: Printed by the Industrial and Consumer Cooperatives 6. The patent application range is cm or more. 2 0. As for the continuous casting device of claim 13 of the patent scope, the temperature detection mechanism includes a temperature detector for detecting the short sides of the two molds; the control mechanism corresponds to the short sides of the two molds. The temperature difference 'is energized in the circuit part near the short side where the temperature is high—the circuit part close to the short side where the temperature is low is the large direct current, and controls the at least one power supply circuit. 2 1. As for the continuous manufacturing device of the patent application item 13, the above temperature detection mechanism includes temperature detectors for detecting the long sides of the two molds; the control mechanism corresponds to the long sides of the two molds For the temperature difference, the circuit part near the long side near the high temperature is energized. The circuit part near the long side near the low temperature is the large DC current, and the at least one power supply circuit is controlled. 2 2. If the continuous casting device according to item 14 of the patent application scope, the temperature detection mechanism includes temperature detectors for detecting the short sides of the two molds: the control mechanism corresponds to the short sides of the two molds For the temperature difference, the circuit part near the short side near the high temperature is energized. The circuit part near the short side near the low temperature is a large two-phase or more alternating current, and the at least one power supply circuit is controlled. 2 3. If the continuous casting device of the patent application item 14 is included, the above temperature detection mechanism includes the temperature t length scale for detecting the long sides of the two molds respectively. It uses the China National Atomic Rate (CNS) A4 specification (210X297 ) ~~~ _ c _ ~ Please read the notes on the back before binding the binding line ^ 〇2Si〇A8 B8 C8 D8 Printed by the Industrial and Consumer Cooperative of the Central Escalation Bureau of the Ministry of Economic Affairs 6. The temperature detector for patent application; The control mechanism corresponds to the above 2, and the portion of the circuit close to the long side with a low temperature and the long side with a high electric power is large, and controls the at least one power supply circuit. 24. If the temperature detector as described in the 20th of the patent application scope includes drawing a plurality of the temperature control elements that have been condensed: the control mechanism checks the temperature and selects the highest temperature as the sides of the mold 25. If applying for a patent Scope 22 The temperature detector includes a plurality of temperature control elements that pull the above-mentioned coagulation; the above-mentioned control mechanism checks at the above-mentioned temperature and selects the highest temperature as each side of the above-mentioned mold 26.-kind of continuous casting device, its plane The immersion nozzle in the central part cools the molten metal while cooling a part of the above-mentioned mold, and continuously casts the metal slab, which is characterized in that: the flow of molten metal in the mold is provided along the long sides of the two molds. A multi-magnetic stir coil part wound around at least a part of the magnetic core along the long sides of the two molds; and the temperature difference part of the long sides of the molds is energized-which is closer to the temperature of the above two phases of the alternating current The representative temperature among the temperatures detected by the sub-testing devices in the direction of the continuous solid gold device. Item of the continuous casting device, the representative temperature of the temperature detected by the component measured in the direction of the solid gold. It is mainly injected from the water side of the mold into the mold, and the solidified gold drawer is drawn, and the electromagnetic search and mixing coil parts are controlled by electromagnetic force, and the multiple magnetic cores and the respective coils are arranged. For the above-mentioned electricity, please read the notes on the back side. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 public). The Central Ministry of Economic Affairs of the Ministry of Economic Affairs Beigong Consumer Cooperative Printed B8 C8 D8 VI. Patent application The energizing means for supplying current to the two electromagnetic stirring coil sections; the space inside and outside the mold passes through the center of the dipping nozzle, and a plane parallel to the long sides of the two molds and passing through the center of the dipping nozzle, and The plane perpendicular to the long sides of the two molds is imaginaryly divided into a first space, a second space, a third space, and a fourth space, where the third space is located in the first space relative to the center of the dipping nozzle Symmetrical position, and the fourth space is located in the symmetrical position of the second space relative to the center of the above-mentioned immersion nozzle, the magnetic core existing in the first space and the third space The magnetic core in the space is longer than the magnetic core in the second space and the magnetic core in the fourth space "2 7. A kind of continuous casting device, which is mainly installed in the water of the mold. The central part of the plane The dip nozzle injects the molten metal into the above-mentioned mold while cooling a part of the above-mentioned mold, drawing the solidified metal and continuously casting the gold slab slab, characterized in that: it is along two long sides of the mold There are two electromagnetic stirring coil parts that control the flow of molten gold in the mold by electromagnetic force, and have a plurality of magnetic cores arranged along the long sides of the two molds and are wound around the The electromagnetic stirring coil portion composed of a plurality of coils of the magnetic core: and a means for energizing the two electromagnetic stirring coil portions to supply current; the space inside and outside the mold is parallel to the above by passing through the center of the dipping nozzle The plane of the two mold long sides and the plane passing through the center of the dipping nozzle perpendicular to the plane of the two mold long sides are virtually divided into a first space, a second space, a third space, and a fourth space Among them, the first paper standard is applicable to the national standard of CNS A4 specification (210X297mm) 7 ^ — (please read the notes on the back side 4 fill in this page). Install A8 B8 C8 _ D8 VI. Patent scope 3 The space is located symmetrically in the first space with respect to the center of the above dipping nozzle, and the fourth space is symmetrical in the second space relative to the center of the above dipping nozzle Position, one of the long sides of the two molds is located in the first space and the second space, and the other of the long sides of the two molds is located in the third space and the fourth space, the two electromagnetic stirring One of the coil parts only has a coil in the first space, and the other of the two electromagnetic stirring coil parts only has a coil in the third space. 2 8. As for the continuous casting device of the patent application item 27, one of the above electromagnetic stirring coil parts has a length that only provides electromagnetic force to the molten metal existing in the first space, and the above electromagnetic stirring coil The other part has a length that provides electromagnetic force only to the molten gold present in the third space. 29. A kind of continuous production equipment, which is mainly made by injecting molten gold into the above-mentioned mold from the dipping nozzle provided in the central part of the horizontal plane of the mold, and cooling a part of the above-mentioned mold while pulling the solidified gold The continuous casting of metal slabs is characterized by the following: the two electromagnetic stirring coil parts that control the flow of molten metal in the mold by electromagnetic force are provided along the long sides of the two molds and have The electromagnetic stirring coil portion composed of a plurality of magnetic cores arranged on the long sides of the two molds and a plurality of coils respectively wound on the magnetic core; and an energizing means for supplying current to the two electromagnetic stirring coil portions; The space inside and outside the mold is passed through the center of the dip nozzle and parallel to the plane of the long sides of the two molds and through the dip nozzle. The paper size is in accordance with the Chinese National Standard (CNS) A4 (210X297 Ali) -8---------- installed ------ 1T ------ 0 (please read the notes on the back first and fill in this page) (^ 02310 B8 C8 D8, apply The center of the patent scope, while the vertical cut The first space 3 space is relative to the position, and the 4th space 2 is symmetrical to the direction of the 3rd space. The coil of the alternating drive and the presence of the said alternating current. In the ground casting 7 series, there will be a comparison of the velocity distribution along the winding on the existing surface layer, and 0. a central part of the mold making gold alloy along 2 molten gold above 2 said magnetic core above 2 inside the mold The flow converted in the flow detection mode is calculated to be straight above, the second empty immersion space is the phase position, the coil is enclosed, and the energization of the flow is part of the slab of the continuous casting immersion nozzle of the fourth air cut. The flow of each mold is long, the flow of a plurality of wires of the mold is long, and the flow rate of the molten gold speed of the electromagnetic stirring is changed. The flow rate of each flow rate is deviated between the two molds. One way to make it is to use the coil circuit in between. Make a device to cool the molten gold. The two sides of the installation situation are characterized by the side. The segment is replaced by the flow component of the active component and the plane on the compensation long side of each difference, and the space is hypothetically divided into the fourth space, where the first heart is located in the center of the symmetrical dipping nozzle in the first space, and The coil in the first space and the presence of molten gold are oriented along the side of the mold, and the current in the second space can be energized or injected into the above-mentioned mold mainly from the water side of the mold. Pull the solidified gold and connect it, control the above-mentioned electromagnetic stirring coil parts by electromagnetic force, and have a plurality of magnetic cores arranged and the above-mentioned electromagnetic stirring coil parts wound separately; a current supply means for supplying current; a plurality of surfaces Position detection Molten gold t The flow rate conversion means of the multiple surface parts set in advance: Each target value in the model is calculated by means of the ratio: Please read the notes on the back and fill in the book page line book. The paper size is in China. Standard rate (CNS) Α4 specification (210Χ297 mm) -9-A8 B8 C8 D8 Printed by the Central Business Bureau of the Ministry of Economic Affairs, Consumer Cooperatives Sixth, apply for a patent to deviate the flow rate component Do not reversed in the inverse conversion means into a plurality of positions of the above-described melt flow rate of melting a surface layer portion of the dimple deviation gold; and the plurality of flow rate such that the deviation becomes zero camel control means for controlling the energizing means. 3 1. If the continuous forging device of item 30 of the patent application scope, the space inside and outside of the mold passes through the center of the dipping nozzle, and the plane parallel to the long side of the two molds and the passage through the dipping nozzle The center, and the plane perpendicular to the long sides of the two molds, is imaginaryly divided into a first space, a second space, a third space, and a fourth space. The third space is located at the third position relative to the center of the dipping nozzle. The symmetrical position of the 1st space, the 4th space is located at the symmetrical position of the 2nd space relative to the center of the above-mentioned immersion nozzle, when one of the long sides of the above 2 molds exists in the 1st and 2nd spaces, and the 2 When the other of the long sides of the molds exists in the third space and the fourth space, the device includes a plurality of flow velocity detectors that can detect the flow velocity of the surface layer portion of the molten metal in the first to fourth spaces, respectively. The flow velocity distribution pattern of the surface layer includes: in the first space and the second space, it has a flow velocity component in the first direction along the mold side, and in the third space and the fourth space, it has the first direction along the mold side. Opposite 2nd party Flow rate component, and the stirring mode that makes the absolute value of the flow rate component of the entire space equal: in the entire space, along the side of the mold, and toward the above-mentioned dipping nozzle, the acceleration mode of the flow component of the same size; and in the first The space and the second space have flow velocity components along the side of the mold away from the above-mentioned immersion nozzle, while in the third and fourth spaces, please read the precautions on the back first (fill in this page) For paper size, use Chinese National Standard (CNS) A4 specification (210X297mm) _ 1〇_ A8 B8 C8 D8, + Please apply for patents, the entire space is energized by the above-mentioned two electromagnetic stirring source circuits . 3 2 · If the energization means includes 3 3 .If the energization means includes 3 4 · If the energization means includes an edge, the torsion pattern of the flow velocity components in the direction of the immersion nozzle is equal to the absolute value of the flow velocity component; The continuous casting device of the first to fourth electric power patents, which is present in the four parts of the mixing coil part of the first to fourth spaces, which are energized in the first to fourth electrical patent scopes, can adjust the output current level. Please refer to the continuous casting device of patent item No. 30 for a power circuit capable of adjusting the frequency of the output current. Please request the continuous casting device of the 30th item of the patent scope, and a power circuit that can adjust the DC component of the output current. The Central Casting Bureau of the Ministry of Economy and Industry Co., Ltd. prints 3 5. If you apply for the continuous casting device of the 31st item of the patent range, The above energization means includes a power supply circuit that can adjust the DC component of the output current. For example, in the continuous manufacturing device of claim 31, the above energization means includes a power supply circuit that can adjust the frequency of the output current. 3 7. If the continuous casting device of the patent application item 31, the above energization means include a power supply circuit that can adjust the DC component of the output current -------- 1 ^ ------ 1T --- --- 0 (Please read the precautions on the back one first and fill out this page) (Good paper size applies to China National Standards (CNS) A4 specification (210 X 297 mm) _ 11