KR101934495B1 - Continuous casting method and device with electromagnetic swirling nozzle - Google Patents

Continuous casting method and device with electromagnetic swirling nozzle Download PDF

Info

Publication number
KR101934495B1
KR101934495B1 KR1020167036195A KR20167036195A KR101934495B1 KR 101934495 B1 KR101934495 B1 KR 101934495B1 KR 1020167036195 A KR1020167036195 A KR 1020167036195A KR 20167036195 A KR20167036195 A KR 20167036195A KR 101934495 B1 KR101934495 B1 KR 101934495B1
Authority
KR
South Korea
Prior art keywords
electromagnetic
case
continuous casting
nozzle
electromagnetic swirl
Prior art date
Application number
KR1020167036195A
Other languages
Korean (ko)
Other versions
KR20170010841A (en
Inventor
창 왕
지청 허
더웨이 리
즈지안 수
가츠키요 마루카와
Original Assignee
노스이스턴 유니버시티
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201420306598.2U external-priority patent/CN203956040U/en
Priority claimed from CN201410256671.4A external-priority patent/CN105195697A/en
Priority claimed from CN201410256672.9A external-priority patent/CN105312521B/en
Priority claimed from CN201410255519.4A external-priority patent/CN105268935B/en
Priority claimed from CN201420306647.2U external-priority patent/CN203956039U/en
Application filed by 노스이스턴 유니버시티 filed Critical 노스이스턴 유니버시티
Publication of KR20170010841A publication Critical patent/KR20170010841A/en
Application granted granted Critical
Publication of KR101934495B1 publication Critical patent/KR101934495B1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/114—Treating the molten metal by using agitating or vibrating means
    • B22D11/115—Treating the molten metal by using agitating or vibrating means by using magnetic fields
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/08—Shaking, vibrating, or turning of moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles
    • B22D41/62—Pouring-nozzles with stirring or vibrating means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

The electromagnetic swirl nozzle continuous casting method and apparatus belong to the field of metallurgy continuous casting technology and the method of the present invention is characterized in that the electromagnetic swirl apparatus is selected before proceeding with the continuous casting and the selected electromagnetic swirl apparatus is installed between the tundish and the determiner And the electromagnetic swirl device is allowed to move in the horizontal direction with respect to the nozzle. In the continuous casting, the electromagnetic swirl device is moved to the vicinity of the immersion nozzle, the electric power is supplied to the electromagnetic swirl device, And the rotating electromagnetic field acts on the molten steel in the nozzle to rotate the molten steel in the nozzle to finally make the discharge of the nozzle uniform.
The present invention provides three electromagnetic swirl devices including a double-edged electromagnetic swirl device, an electromagnetic swirl device with one side open and a magnetic circuit closed, and an electromagnetic swirl device with one side opened, thereby satisfying electromagnetic swirl continuous casting requirements, The smooth operation of the electromagnetic swirl continuous casting can be ensured to the maximum extent without affecting the conventional continuous casting process.

Description

TECHNICAL FIELD [0001] The present invention relates to a continuous casting method for an electromagnetic swirl nozzle,

The present invention belongs to the field of metallurgy continuous casting technology, and more particularly to an electromagnetic swirl nozzle continuous casting method and apparatus.

In the continuous casting process, the main stream in the immersion nozzle may normally experience a left-right shaking phenomenon. That is, a drift in which the ejection size in the nozzle inside the crystal is unbalanced to the right and left occurs, resulting in non-uniform flow and temperature distribution inside the crystal, A series of problems occur. The drift also causes liquid level fluctuation. Particularly, as the continuous casting speed is improved, the ejection non-uniformity in the nozzles becomes serious, and the fluctuation of the liquid level becomes severe, thereby restricting the improvement of the casting speed. The drift also causes the inflow of molten powder by the eddy current near the nozzle and the cutting of the molten powder near the short side, resulting in severe quality defects in the quality of the slab, such as pinholes on the surface, incorporation of the molten powder under the surface, winding on the panel, The occurrence of this drift is difficult to prevent due to the following reasons:

(1) Inertia of the molten steel in the horizontal direction: Since molten steel has a constant velocity in the horizontal direction when injected into the immersion nozzle, the distribution of molten steel at the nozzle cross section becomes uneven, and molten steel discharged from the nozzle causes drift .

(2) Sliding gate control: Since the sliding gate for controlling the molten steel flow rate in the continuous casting process is usually in a semi-open state, the flow direction of the molten steel injected downward into the immersion nozzle is not vertical but inclined downward, The molten steel in the immersion nozzle flows downward as it moves snaking like a snake, and is injected into the crystallizer, and this flow is not normal flow. That is, molten steel is injected into the crystallizer through an abnormal flow path.

(3) Attachment of inclusions: Since the inclusions present in the molten steel are adsorbed on the inner surface of the nozzle when passing through the immersion nozzle, the molten steel is unevenly distributed on the cross section of the nozzle, thereby causing drift.

(4) Cause of operation: Even if the center of the immersion nozzle and the center of the nozzle on the ladle do not coincide, a drift occurs.

To solve casting quality defects due to drift, engineers have developed a mechanical swirl nozzle, and the discharge of the molten steel nozzle in the swirl state is uniform and stable, although the flow and temperature distribution inside the crystal is improved to some extent, And improves the surface and internal quality of the slab, but mechanical swirl nozzles are accompanied by severe defects such as:

(1) The spiral blade made of refractory material has a short life due to the erosion of molten steel, and the molten steel inclusion is easily adsorbed on the helical blade, resulting in clogging. give.

(2) When the molten steel flows at low speed (for example, low-speed casting), effective turning flow can not be obtained because the turning speed and the descending speed of molten steel are directly proportional to each other. That is, the molten steel can not obtain the necessary swirling flow at the beginning of casting, the ladle replacing step and the end of casting, and the functions such as uniform temperature field and inclusion removal rapidly deteriorate.

(3) Since the swirl mode can not be adjusted, it is difficult to adapt to various process demands, and thus it is limited in application.

Regarding the disadvantage of the above-mentioned mechanical swirl nozzle, Chinese Patent No. 200510047290.6 discloses an electromagnetic swirl nozzle, and a rotating electromagnetic field is provided around the immersion nozzle to generate a swirl of molten steel inside the nozzle, As well as free from clogging and longevity problems, whilst at the same time the swirl strength can be more flexibly adapted to the needs of various steel grades and continuous cast shapes. According to the basic research, the electromagnetic swirl nozzle can generate the swirl intensity equivalent to that of the mechanical swirl nozzle in the nozzle, and the equivalent metallurgical effect can be expected.

However, since the electromagnetic swirl nozzle is required to install an electromagnetic swirl device around the nozzle, it is limited by the continuous casting process, the space around the crystallizer is narrow, and the space between the tundish and the crystallizer is also limited. Although the above patent discloses an electromagnetic swirl device having three structural types such as a 360-degree overall annular structure, a 180-degree semicircular annular structure, and a 360-degree separated annular structure, the electromagnetic swirl device using a 360- The use of an electromagnetic swirl device with a 180-degree semicircular annular structure results in a very low magnetic field efficiency. When an electromagnetic swirl device having a 360-degree separable annular structure is used, the channel and circuit system become enormous , The opening and closing and supporting devices have to be designed separately, and when the device is closed, it still has a 360-degree annular shape, which seriously affects the addition of the field mold powder, and the magnetic field frequency of the electromagnetic swirl device of the patent is relatively low, Only a relatively strong magnetic field can be generated, and the energy input is increased.

For the above reasons, a new design must always be made for a conventional electromagnetic swirl device, while at the same time satisfying the demand for electromagnetic swirl continuous casting, it should not have a great influence on the conventional continuous casting process.

In view of the problems existing in the prior art, the present invention provides an electromagnetic swirl nozzle continuous casting method and apparatus which can satisfy the requirement of electromagnetic swirl continuous casting but does not have a great influence on the conventional continuous casting process, , Continuous casting requirements of billets and slabs.

In order to achieve the above object, the present invention uses the following technique.

In an electromagnetic swirl nozzle continuous casting method,

Step 1: Before proceeding to continuous casting, selecting an electromagnetic swirl device according to a different continuous casting process;

Step 2: installing the electromagnet swirl device between the tundish and the determiner, and allowing the electromagnetic swirl device to move in the horizontal direction with respect to the nozzle;

Step 3: During the continuous casting, moving the electromagnetic swirl device around the nozzle;

Step 4: regulating the current and frequency according to the process demand, supplying electric power to the electromagnetic swirl device and causing the electromagnetic swirl device to generate a rotating electromagnetic field;

Step 5: The rotating electromagnetic field acts on the molten steel in the nozzle to rotate the molten steel in the nozzle, thereby finally making the discharge of the nozzle uniform.

There are three electromagnetic swirl devices as described below.

First: double-edged electromagnetic swirl device;

Second: an electromagnetic swirl device with one side open and a magnetic circuit closed;

Third: An electromagnetic swirl device with one side opened.

The double-edged electromagnetic swirler includes an electromagnetic swirler main body, an opening / closing control means, and a supporting device, wherein windings are installed inside the electromagnetic swirler main body, the electromagnetic swarf main body includes a left half case and a right half case The left half case and the right half case have two symmetrical semicircular annular structures. The left half case has an inlet port, an outlet port and a lead wire connection part. The right half case has an inlet port, an outlet port, The left half case and the right half case are connected to each other through the hinge connection part and the left half through groove and the right half through groove are respectively provided on the opposite side walls of the other end, When the right half case is closed, the main body of the electromagnetic swirl device is formed into a circular shape , The left half through groove and the right half through groove form a through hole which is a molding powder addition hole and the non-hinge connecting portions of the left half case and the right half case are respectively connected to the opening / closing control means, And the other end is fixedly connected to the tundish crossbar. The support base is a stretchable structure. The support base and the tundish crossbar are fixedly connected through a fixed steel plate of the tundish crossbar.

And the opening / closing control means is connected to the left half case and the right half case through the arm panel, and the windings inside the electromagnetic swirl apparatus main body are connected to the left half case and the right half case through the arm panel, Wherein the open / close control means comprises a first link, a second link and a third link, the inner ends of the first link, the second link and the third link are hinged to each other, The outer end of the first link is hinged to the arm panel of the left half case and the outer end of the third link is hinged to the arm panel of the right half case.

An electromagnetic swirl device having one side opened and a magnetic circuit closed includes an electromagnetic swirl device main body having an opening at one side, a magnetic circuit compensating device and a supporting device, a winding is provided inside the electromagnetic swirl device main body, The magnetic circuit compensating device is made of an iron core packed with a refractory material and installed in an opening portion of the electromagnetic swirler main body to form a closed magnetic circuit structure together with the electromagnetic swirler main body, And the other end is fixedly connected to the tundish crossbar, the support is a stretchable structure, and the support and the tundish crossbar are fixedly connected through a fixed steel plate of the tundish crossbar.

Wherein the electromagnetic swirl device main body and the magnetic circuit compensating device are connected through a hinge connection portion, and the closed magnetic circuit structure formed by the magnetic circuit compensating device and the electromagnetic swirler main body is circular or U-shaped, The outside is air-cooled, water-cooled or oil-cooled.

The electromagnetic swirl device having one side opened includes an electromagnetic swirler main body and a supporting device having an opening at one side thereof, and an iron core and a winding are provided in the main body of the electromagnetic swirler, and the iron core is provided with an opening The opening of the iron core and the opening of the electromagnetic swirler body correspond to each other, the windings are wound on the iron core, one end of the support device is fixedly connected to the electromagnetic swirler main body, and the other end is fixed to the tundish crossbar Wherein the support is a stretchable structure, and the support between the support and the tundish crossbar is fixedly connected via a fixed steel plate of the tundish crossbar.

Wherein the iron core comprises three protruding teeth, the two external teeth being distributed symmetrically on both sides of the immersion nozzle, the non-opening side of the iron core being straight or arcuate, the windings being wound on three protruding teeth of the iron core Respectively.

The beneficial effects of the present invention are as follows:

1. Using the electromagnetic swirl nozzle continuous casting method and apparatus of the present invention, it is possible to quickly move the electromagnetic swirl device to a proper position around the nozzle during continuous casting, thereby satisfying the electromagnetic swirl continuous casting requirement, It is possible to ensure the smooth operation of the electromagnetic swirl continuous casting to a maximum extent and to quickly release the electromagnetic swirl device from the periphery of the nozzle when the continuous casting is stopped or the nozzle is replaced, When the electromagnetic swirl device operates in the nozzle region, the magnetic field frequency in the nozzle can reach up to 800 Hz, and this high frequency can reach a very strong swirl effect with a relatively small current Therefore, the energy input can be reduced.

2. The double-edged electromagnetic swirl device used in the present invention can ensure the closing of the magnetic field circuit to the maximum extent and generate a relatively strong magnetic field inside the immersion nozzle, so that the molten steel is relatively strongly rotated inside the immersion nozzle, Uniformity and stability can be effectively improved to improve the molten steel flow and heat transfer behavior in the crystallizer and to improve the quality of continuous casting and the design of the mold powder addition sphere has the advantage that the mold powder addition The continuous casting process is not greatly influenced and smooth progress of continuous casting can be guaranteed to the maximum extent.

3. The magnetic circuit compensator of the electromagnetic swirl apparatus with one side opened and the magnetic circuit closed in the present invention ensures the closing of the magnetic circuit and can generate a relatively strong magnetic field inside the immersion nozzle, It is possible to effectively improve the uniformity and stability of the nozzle discharge, improve the molten steel flow and heat transfer behavior in the crystallizer, and improve the quality of continuous casting.

4. The electromagnetic swirl device having one side opened in the present invention can ensure sufficient electromagnetic swirl strength because of a large winding space so that the molten steel is relatively strongly rotated in the immersion nozzle by satisfying the electromagnetic swirl strength, It is possible to improve the uniformity and stability of discharge effectively to improve the molten steel flow and heat transfer behavior in the crystallizer and to improve the quality of continuous casting and the electromagnetic swirl device with one side opened is located at one side of the immersion nozzle in the course of the electromagnetic swirl operation, And sufficient space is provided on the other side so that the field worker can perform operations such as observing the surface of the crystallizer, selecting the powder, and adding the mold powder.

1 is a schematic view of a continuous casting apparatus to which the electromagnetic swirl nozzle continuous casting method of the present invention is applied.
2 is a structural schematic view of a double-edged electromagnetic swirl apparatus according to the present invention.
Figure 3 is a side view of Figure 2;
4A and 4B are electromagnetic swirl arrangements in which one side is opened and a magnetic circuit is closed according to the present invention.
Figure 5 is a side view of Figure 4a.
6 is a schematic view of the structure of an electromagnetic swirl apparatus having one side opened.
Fig. 7 is a side view of Fig. 6. Fig.
8A and 8B are schematic views of an iron core and a winding structure of an electromagnetic swirl apparatus having one side opened.
In the drawing, a first tundish, a second immersion nozzle, a 3-electromagnetic swirl device, a 4-crystal device, a 5-electromagnetic swirl device main body, a 6-hinge connection, Link, 10-third link, 11-support, 12-tundish crossbar fixed steel plate, 13-tundish crossbar, 14-magnetic circuit compensation device, 15-iron core, 16-winding, 17-tooth.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be further described in detail in conjunction with the drawings and specific embodiments.

In an electromagnetic swirl nozzle continuous casting method,

Step 1: Before proceeding to continuous casting, selecting an electromagnetic swirl device 3 according to a different continuous casting process;

Step 2: installing the electromagnet swirl device 3 between the tundish 1 and the crystallizer 4 and allowing the electromagnetic swirl device 3 to expand and contract in the horizontal direction with respect to the nozzle 2;

Step 3: During the continuous casting, moving the electromagnetic swirl device 3 around the nozzle 2;

Step 4: Supply electric power to the electromagnetic swirl device 3, and adjust the current and frequency according to the process demand so that the electromagnetic swirl device 3 generates a rotating electromagnetic field;

Step 5: The applied continuous casting apparatus is as shown in Fig. 1, and the rotating electromagnetic field acts on the molten steel in the nozzle 2 to rotate the molten steel in the nozzle 2 to finally make the discharge of the nozzle uniform Step.

The electromagnetic swirl device 3 has the following three types.

First: double-edged electromagnetic swirl device;

Second: an electromagnetic swirl device with one side open and a magnetic circuit closed;

Third: An electromagnetic swirl device with one side opened.

As shown in Figs. 2 and 3, the double-edged electromagnetic swirl apparatus includes an electromagnetic swirl apparatus main body 5, an opening / closing control means, and a supporting device. Winders are installed inside the electromagnetic swirl apparatus main body 5 Wherein the left half case and the right half case have two symmetrical semicircular annular structures, and the left half case has an inlet port, an outlet port, and a lead wire connection port on the left half case, An inlet port and an outlet port of the right half case are provided on the right half case and one end of the left half case and the right half case are connected to each other through the hinge connection portion, Grooves and right half through grooves are respectively provided. When the left half case and the right half case are closed, The electromagnetic swirler main body 5 has an annular shape. The left half through groove and the right half through groove form a through hole, which is a mold powder addition hole. The non-hinge connection portions of the left half case and the right half case, And the support unit includes a support base 11 having one end fixedly connected to the hinge connection unit 6 and the other end fixedly connected to the tundish crossbar 13. The support base 11 has a stretchable structure, The support base 11 and the tundish crossbar 13 are fixedly connected through the fixed steel plate 12 of the tundish crossbar.

An opening / closing control means is connected to the left half case and the right half case through the arm panel 7, and the electromagnetic swirler main body 5 is connected to the left half case and the right half case. And the opening and closing control means is constituted by a first link 8, a second link 9 and a third link 10, and the first link 8, the second link 9 and the third link 10, The second link 9 and the third link 10 are hinged to each other and the outer end of the first link 8 is hinged to the arm panel 7 of the left half case, (10) is hinged to the arm panel (7) of the right half case.

As shown in Figs. 4A, 4B and 5, the electromagnetic swirl device in which the one side is opened and the magnetic circuit is closed includes an electromagnetic swirl apparatus main body 5 having an opening at one side, a magnetic circuit compensating device 14, Wherein the magnetic circuit compensating device (14) is made of an iron core packaged in a refractory material and has an opening portion of the electromagnetic swirler main body (5) And a closed magnetic circuit structure is formed together with the electromagnetic swirler main body 5. The supporting device is fixedly connected at one end to the electromagnetic swirler main body 5 and the other end is fixed to the tundish crossbar 13 And the supporting table 11 is a stretchable structure and the supporting table 11 and the tundish cross bar 13 are fixedly connected to each other through a fixed steel plate 12 of a tundish cross bar.

The electromagnetic swirling apparatus main body 5 and the magnetic circuit compensating device 14 are connected through a hinge connecting portion 6 and the magnetic circuit compensating device 14 and the electromagnetic swirler main body 5 are formed in a closed magnetic circuit structure And the outer side of the magnetic circuit compensating device 14 is air-cooled, water-cooled or oil-cooled.

As shown in Figs. 6, 7, 8A and 8B, the electromagnetic swirl apparatus having one side opened includes an electromagnetic swirl apparatus main body 5 having an opening at one side and a supporting device, An iron core 15 and a winding 16 are provided in the main body 5. The iron core 15 is a ridge type in which an opening is provided at one side and the opening of the iron core 15 and the opening of the electromagnetic swirler main body 5 And the other end of which is fixedly connected to the tundish cross bar 13 and the other end of which is fixedly connected to the tundish crossbar 13, and the windings 16 are wound on the iron cores 15, Wherein the supporting table 11 is a stretchable structure and the supporting table 11 and the tundish cross bar 13 are fixedly connected via a fixed steel plate 12 of a tundish cross bar.

The iron core 15 includes three protruding teeth 17 and the outer two teeth 17 are symmetrically distributed on both sides of the immersion nozzle 2 and the non-opening side of the iron core 15 is a rectilinear And the winding 16 is wound on the three protruding teeth 17 of the iron core 15. As shown in Fig.

Example  One

In the present embodiment, the power source box for supplying power to the electromagnetic swirl device is a power source box for supplying electric power to the electromagnetic swirl device in the range of 0 to 100 degrees so that the magnetic field can generate clockwise or counterclockwise rotation. The height h of the main body 5 of the electromagnetic swirler 5 is 80 to 500 mm and the inside diameter r is 25 to 150 mm, as shown in Figs. 2 and 3, The distance X1 from the center of the electromagnetic swirler main body 5 to the lowermost end of the arm panel 7 is 100 to 1000 mm and the support ring 11 can use a pneumatically driven or extensible rod or a mechanically driven elongated rod, the stretch length range X2 is 600 to 2000 mm, the control end length X3 of the open / close control means is 200 to 500 mm, Can be used.

The second link 9 of the opening and closing control means is pulled to open the left half case and the right half case and then the length of the support base 11 is adjusted so that the electromagnetic swirler main body 5 is immersed in the immersion nozzle 2, The second link 9 of the opening / closing control means is pushed so that the left half case and the right half case are closed, and the power source box supplies electric power to the electromagnetic swirl device, Thereby realizing the electromagnetic swirl continuous casting.

Example  2

An electromagnetic swirl continuous casting is carried out using an electromagnetic swirl device, one side of which is open and the magnetic circuit is closed. In this embodiment, a power source box that supplies power to the electromagnetic swirl device generates a clockwise or counterclockwise rotation 4A, 4B, and 5, the height (h) of the electromagnetic swirler body 5 is 80 to 500 mm, and the width of the opening portion The width is 30 to 200 mm, and the support table 11 can use a pneumatically driven stretching rod or a machine driven stretching rod, and the stretching length range is 600 to 2000 mm.

The magnetic circuit compensating device 14 is first opened through the hinge connecting portion 6 to adjust the length of the supporting stand 11 and the electromagnetic swirler main body 5 is moved to the immersion nozzle 2 through the opening on one side, And then the magnetic circuit compensating device 14 is closed again so that the power source box supplies electric power to the electromagnetic swirl device so that the magnetic circuit compensation device 14 and the electromagnetic swirl device main body 5 A closed magnetic circuit is formed to realize electromagnetic swirl continuous casting.

Example  3

The electromagnetic swirl continuous casting is performed using an electromagnetic swirl device having one side opened. In this embodiment, a power source box for supplying electric power to the electromagnetic swirl device is set to 0 to 800 Hz so that the magnetic field can generate a clockwise or counterclockwise rotation , The electric current of 0 to 1000 A can be supplied to the electromagnetic swirler main body 5. As shown in Figs. 6, 7, 8A and 8B, the height h of the electromagnetic swirler main body 5 is 80 to 500 mm, (x) is 30 to 200 mm, and the support table 11 can use a pneumatically driven stretching rod or a machine driven stretching rod, and the stretching length range is 600 to 2000 mm.

The length of the support table 11 is adjusted so that the electromagnetic swirl apparatus main body 5 is installed at the outer edge of the immersion nozzle 2 through the opening thereof. At this time, the power supply box supplies electric power to the electromagnetic swirl apparatus, The swirl device generates a rotating electromagnetic field to realize electromagnetic swirl continuous casting.

The measures in the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent implementations or modifications mentioned in the present invention should be included in the claims of the present application.

Claims (8)

As a double-edged electromagnetic swirl device,
An electromagnetic swirler main body, an opening / closing control means, and a supporting device,
Wherein a winding is provided in the electromagnetic swirler body, the electromagnetic swirler body is composed of a left half case and a right half case,
The left half case and the right half case have two symmetrical semicircular annular structures,
The left semicircular annular case is provided with a lead connecting portion of the left semicircular annular case, the right semicircular annular case is provided with a lead connecting portion of the right semicircular annular case,
One end of the left semicircular annular case and one end of the right semicircular annular case are connected through a hinge connection portion and a left half through groove and a right half through groove are respectively provided on opposite side walls of the other half,
When the left semicircular annular case and the right semicircular annular case are closed, the electromagnetic sweeper main body has an annular shape,
The left half through groove and the right half through groove are formed through holes, which are mold powder addition holes,
The left semicircular annular case and the non-hinged connection of the right semicircular annular case are respectively connected to the opening / closing control means,
Wherein the support device includes a support having one end fixedly connected to the hinge connection part and the other end fixedly connected to the tundish crossbar,
The support is a stretchable structure,
Wherein the support plate and the tundish cross bar are fixedly connected to each other through a fixed steel plate of the tundish crossbar,
Double swing type electromagnetic swirl device. The method according to claim 1,
An arm panel is provided on the left semicircular case and the right semicircular case, respectively,
Wherein the opening / closing control means is connected to the left semicircular annular case and the right semicircular annular case through the arm panel,
Wherein a winding in the electromagnetic swirl apparatus main body uses a ridge type concentric winding or an annular winding,
Wherein the open / close control means comprises a first link, a second link and a third link,
The inner ends of the first link, the second link and the third link are hinged,
The outer end of the first link is hingedly connected to the arm panel of the left semicircular case,
And an outer end of the third link is hinged to an arm panel of the right semicircular annular case. delete delete delete delete delete delete
KR1020167036195A 2014-06-10 2014-10-30 Continuous casting method and device with electromagnetic swirling nozzle KR101934495B1 (en)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
CN201410256671.4 2014-06-10
CN201410255519.4 2014-06-10
CN201420306598.2U CN203956040U (en) 2014-06-10 2014-06-10 A kind of two lobe formula submersed nozzle electromagnetic eddy flow device and bracing or strutting arrangements thereof
CN201420306647.2 2014-06-10
CN201410256671.4A CN105195697A (en) 2014-06-10 2014-06-10 Electromagnetic rotational flow device opened at single side and support device thereof
CN201420306598.2 2014-06-10
CN201410256672.9A CN105312521B (en) 2014-06-10 2014-06-10 The electromagnetic eddy flow device and its support device of one side opening, magnetic circuit closure
CN201410255519.4A CN105268935B (en) 2014-06-10 2014-06-10 A kind of two-flap type submersed nozzle electromagnetic eddy flow device and its support meanss
CN201410256672.9 2014-06-10
CN201420306647.2U CN203956039U (en) 2014-06-10 2014-06-10 A kind of electromagnetic eddy flow device and bracing or strutting arrangement thereof of one-sided opening
PCT/CN2014/089881 WO2015188573A1 (en) 2014-06-10 2014-10-30 Continuous casting method and device with electromagnetic swirling nozzle

Publications (2)

Publication Number Publication Date
KR20170010841A KR20170010841A (en) 2017-02-01
KR101934495B1 true KR101934495B1 (en) 2019-01-02

Family

ID=54832837

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020167036195A KR101934495B1 (en) 2014-06-10 2014-10-30 Continuous casting method and device with electromagnetic swirling nozzle

Country Status (3)

Country Link
JP (1) JP6185666B2 (en)
KR (1) KR101934495B1 (en)
WO (1) WO2015188573A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3332891A1 (en) 2016-12-12 2018-06-13 ABB Schweiz AG An assembly for a metal-making process
CN107150116B (en) * 2017-05-10 2018-11-06 辽宁科技大学 A kind of method that electromagnetism regulation and control manufacture large-scale casting ingot from inoculation
CN111950107B (en) * 2019-04-30 2024-06-04 上海梅山钢铁股份有限公司 Method for analyzing flow characteristics of flow field in multi-stream continuous casting tundish
CN114029463A (en) * 2021-11-25 2022-02-11 山东钢铁股份有限公司 Method for solving segregation of large round billet of special steel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090294091A1 (en) * 2008-05-30 2009-12-03 Jan-Erik Eriksson Continuous Casting Device

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2828160B2 (en) * 1978-06-23 1981-04-30 Aeg-Elotherm Gmbh, 5630 Remscheid Electromagnetic stirring device for continuous casting plants
LU85846A1 (en) * 1985-04-10 1986-11-05 Metz Paul DEVICE FOR BREWING MOLTEN METAL IN A CONTINUOUS CASTING SYSTEM
FR2613647B1 (en) * 1987-04-13 1990-11-16 Alsthom ELECTROMAGNETIC MIXING OF LIQUID METAL FOR CONTINUOUS CASTING LINE
SE464503B (en) * 1987-11-12 1991-05-06 Asea Ab REMOVABLE STRAW MIXER
JPH0623498A (en) * 1992-07-10 1994-02-01 Sumitomo Heavy Ind Ltd Device for controlling supply of molten steel in continuous casting
JPH07108355A (en) * 1993-10-08 1995-04-25 Kobe Steel Ltd Electromagnetic stirrer
FR2856321B1 (en) * 2003-06-17 2006-05-26 Usinor CONTINUOUS CASTING INSTALLATION FOR ELECTRO-MAGNETIC ROTATION OF LIQUID METAL IN TRANSIT IN THE CASTING BUSH
CN100357049C (en) * 2005-09-29 2007-12-26 赫冀成 Electromagnetic eddy flow downspout
CN2873367Y (en) * 2005-09-29 2007-02-28 赫冀成 Electromagnetic rotational flow water tap
KR20120044433A (en) * 2010-10-28 2012-05-08 현대제철 주식회사 Apparatus for reducting nonunifrom flow of molten steel in the mold and method therefor
CN203155970U (en) * 2013-03-05 2013-08-28 上海大学 Opening type magnetic stirrer for nozzle swirl
CN103203450A (en) * 2013-03-20 2013-07-17 河北三方电气设备有限公司 Electromagnetic rotational flow water gap for continuous casting
CN203184640U (en) * 2013-03-20 2013-09-11 河北三方电气设备有限公司 Electromagnetism rotational flow water gap for continuous casting
CN104028717B (en) * 2014-06-10 2017-09-05 东北大学 A kind of electromagnetic eddy flow continuous cast method
CN104128598B (en) * 2014-07-30 2016-04-20 河北三方电气设备有限公司 A kind of continuous casting mouth pipe swirl-flow devices
CN203972853U (en) * 2014-07-30 2014-12-03 河北三方电气设备有限公司 A kind of continuous casting mouth pipe swirl-flow devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090294091A1 (en) * 2008-05-30 2009-12-03 Jan-Erik Eriksson Continuous Casting Device

Also Published As

Publication number Publication date
JP2016524542A (en) 2016-08-18
KR20170010841A (en) 2017-02-01
WO2015188573A1 (en) 2015-12-17
JP6185666B2 (en) 2017-08-23

Similar Documents

Publication Publication Date Title
KR101934495B1 (en) Continuous casting method and device with electromagnetic swirling nozzle
CN100357049C (en) Electromagnetic eddy flow downspout
CN104028717A (en) Electromagnetic swirling continuous casting method
CN105312521B (en) The electromagnetic eddy flow device and its support device of one side opening, magnetic circuit closure
JP2014208376A (en) Method of manufacturing high cleanliness steel slab by continuous molding
JP6672531B2 (en) Assembly for metal manufacturing method
KR870000054B1 (en) Continuous casting
JP7305881B2 (en) Casting equipment and casting method
CN105268935A (en) Two-part type immersion type water opening electromagnetic cyclone device and supporting device thereof
KR20020086913A (en) Equipment for supplying molten metal to a continuous casting ingot mould and Method for using same
KR100524613B1 (en) Method for controlling the magnetic field of width of continuous casting mold
KR20140140819A (en) Shroud nozzle and apparatus for continuous casting having the same
CN110605371B (en) Device and method for controlling negative segregation defect of solute under continuous casting magnetic stirring
CN108705075B (en) Electromagnetic tundish for inhibiting blockage of submerged nozzle
KR102326865B1 (en) Casting apparatus and casting method
KR20130133535A (en) Continuous casting apparatus and method
KR20200036554A (en) Gate apparatus and operating method thereof
RU2464123C1 (en) Method of adjusting conditions of electromagnetic mixing of ingot liquid phase in slab continuous casting machine and device to this end
KR101277984B1 (en) Exhaust device of hot metal
KR20220089036A (en) Nozzle Structure of Radle
KR100902215B1 (en) Submerged entry nozzle for continuous casting
KR101356071B1 (en) Device for supplying molten alloy
JP2009018328A (en) Tundish for continuous casting, and continuous casting method of steel
JP2013103262A (en) Water tank for cooling ingots, cooling apparatus in casting machine, and method for cooling ingots
KR100701192B1 (en) Device for preventing clogging of submerged nozzle in the continuous casting

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant