TWI270423B - Method and apparatus for manufacturing metal material, metal material and metal workpiece - Google Patents

Abstract

To easily prevent adhesion of molten metal at low costs without deteriorating surface quality in a metal material manufacturing method by continuous casting. In continuously casting a metal material S 1 by driving a plurality of rotational molding members 10, 11 in a casting direction, the plurality of rotational molding members 10, 11 being disposed so as to be opposed with each other to form a casting space, lubricating oil is intermittently sprayed onto at least a part of a molten alloy contact surface of at least one of the plurality of rotational molding members 10 or 11.

Description

1270423 (1) The present invention relates to a method for producing a continuously cast metal material, and more particularly to a manufacturing apparatus for the purpose of carrying out the manufacturing method, a metal material produced by the manufacturing method, and A metal working material made of the metal material. [Prior Art] A continuous casting device used for continuous casting of a metal wire is provided with a plurality of rotary molding members disposed in a manner surrounding a casting space, and the rotary molding member is driven in a casting direction, and at the same time, a casting space Supply molten metal to make metal castings. For example, the aluminum wire continuous casting and rolling (Properzi) casting apparatus uses a casting wheel in which a groove is provided on the outer surface, and a rotary mold member for closing the endless belt of the groove. In the case of rotating the mold member, in order to prevent the molten metal from being condensed, a countermeasure is taken to apply the lubricating oil to the inner surface of the rotary mold member, or to apply a lubricating layer to the inner surface of the rotary mold member ( Reference is made to Japanese Patent Documents 1, 2, and 3). The method of applying the lubricating oil is a method of spraying a lubricating oil by a spray device using a negative pressure generated by a gas flow, or coating the inner surface of the rotary mold member with a fiber cloth impregnated with the lubricating oil. The method. Further, the lubricating oil is a chemical synthetic oil having a high heat resistance or a vegetable oil such as castor oil. Further, 'the method of arranging a lubricating layer on the inner surface of the rotary mold member' patent document 1 proposes a solution in which a solution of an alcohol dispersed with fluorinated graphite-5-(2) 1270423 powder is applied to a mold. On the surface, or alternatively, the fluorinated graphite is dispersed in the metal plating layer, and the fluorinated graphite is used to form a lubricating layer. Further, Patent Document 2 proposes a scheme in which a lubricating layer of coal ash which is produced by incomplete combustion of acetylene gas is attached. Further, Patent Document 3 proposes a method of spraying a lubricating layer of a refractory ceramic. Further, in the above-described continuous casting, a rolling mill is disposed in the subsequent stage of the rotary molding member, and the metal casting material is continuously rolled to obtain a cast rolled material having a desired shape. However, the surface of the cast rolled material may be blackened, and the surface quality may be inferior to that of the extruded workpiece. It can cause blackening, such as carbides and oxides. The generation of carbides is mainly to carbonize the lubricating oil used for the purpose of preventing condensation on the mold during casting. Further, the generation of oxides is caused by oxidation of an additive element in the surface layer for the purpose of maintaining high temperature after metal casting, and Mg is mainly oxidized to produce MgO. Therefore, there has been proposed a method of cutting off the surface of the cast rolled material or spraying the pressurized water to purify the surface after rolling (see Patent Document 4). [Patent Document 1] Japanese Patent Laid-Open No. 59-18048 [Patent Document 2] Japanese Laid-Open Patent Publication No. JP-A-59-135 SUMMARY OF THE INVENTION However, since the above-described method of applying a lubricating oil in continuous casting is difficult to perform a micro coating by -6 - (3) 1270423, although a sufficient oil film formation can be obtained as long as a thin oil film is formed, an excessive amount of coating is applied. Lubricating oil. Secondly, in addition to the excessive deterioration of the surface quality of the cast material, the excessive lubricating oil has a problem that the cost of the lubricating oil is high. On the other hand, in the method of forming a lubricating layer by using graphite fluoride described in Patent Document 1, the lubricating layer is decomposed by high temperature, so that it is difficult to obtain a long-lasting effect, and the cost is higher than that of the lubricating oil coating. Further, the lubricating layer using the coal ash film and the lubricating layer coated with ceramics described in Patent Documents 2 and 3 have a problem that the formation cost of the lubricating layer is high. Further, in terms of the method for removing the surface blackening of the cast rolled material, the surface cutting removal increases the material scrap rate, and must be carried out by other engineering, so that the material cost and the engineering cost are high. Further, in the surface cleaning by water jet described in Patent Document 4, there is a problem that a sufficient washing effect cannot be obtained. In view of the above technical background, an object of the present invention is to provide a method for producing a metal material which does not reduce the surface quality of the cast material, and which can easily prevent the molten metal from coagulating at a low cost, and can even remove surface blackening and is excellent. Surface quality. In order to achieve the above object, the method for producing a metal material according to the present invention has the constitutions described in the following (1) to (24). (1) A method of producing a metal material, characterized in that, when a plurality of rotary mold members are disposed opposite to each other in a casting space, and the rotary mold member is driven in a casting direction to continuously cast a metal material, at least one of the rotary mold members is At least a portion of the molten metal contact surface is sprayed intermittently -7-1270423

Cloth lubricant. (2) The method of producing a metal material according to the first aspect, wherein the plurality of rotary molding members are casting wheels having a groove on a peripheral surface thereof and a continuous belt for closing the groove. (3) The method of producing a metal material according to item 2, wherein the lubricating oil is applied to the groove of the casting wheel. (4) The method of producing a metal material according to the item 3, wherein the lubricating oil is applied only to the side surface portion of the groove of the casting wheel. (5) The method for producing a metal material according to the item 2, wherein the continuous belt is coated with a lubricating oil. (6) The method for producing a metal material according to Item 1, wherein the moving speed of the molten metal contact surface of the rotary mold member is V (mm/s), the first spray time is t (s), and the rotary mold In the stationary state, when the distance in the casting direction of the range applied by one spray is Lp (mm), the number of sprays (T) in one second is V/(Lp+Vxt)~3V/(Lp+Vxt) times. (7) The method for producing a metal material according to the first or second aspect, wherein the lubricant is sprayed by a plunger pump. (8) The method for producing a metal material according to item 1 or 2, wherein the spraying time is 0.001 to 1 s. (9) The method for producing a metal material according to Item 1 or 2, wherein the spray amount per one time is 0.001 to 1 ml. (10) The method for producing a metal material according to Item 1 or 2, wherein the total coating amount of the lubricating oil is 5 to 150 ml/h. (5) 1270423 (11) The method for producing a metal material according to the first aspect, wherein the rolling of the ___ after the rolling is performed to produce a cast rolled material, the stage of the casting rolled material containing pickling or caustic washing Wash. (12) The method for producing a metal material according to Item 11, wherein the multi-stage cleaning system is carried out while moving the cast rolled material. (13) The method of producing a metal material according to Item 12, wherein the multi-stage cleaning is performed after continuous casting and rolling. Φ (14) The method for producing a metal material according to the item 12, wherein the multi-stage cleaning is performed after continuous casting and rolling of the other 3: @^. (15) The method for producing a metal material according to the item, wherein the multi-stage cleaning is performed after the cutting of the cast rolled material is performed. The method of producing a metal material according to the item 11, wherein the multi-stage cleaning comprises at least one alkali washing and at least one acid washing. (17) The method for producing a metal material according to Item 16, wherein the multi-stage cleaning is carried out in the order of alkali washing and pickling. (18) The method for producing a metal material according to Item 16, wherein the multi-stage cleaning is carried out in the order of pickling, caustic washing, and pickling. (19) The method for producing a metal material according to Item 11, wherein the pickling cleaning liquid is one of φ among nitric acid, sulfuric acid, and hydrochloric acid. (20) The method for producing a metal material according to the item 11, wherein the washing liquid for washing is a sodium hydroxide aqueous solution or a water-soluble solution of barium hydroxide. (21) The method for producing a metal material according to Item 11, wherein the washing time of the pickling or the alkali washing is controlled by a time required for each of the washing tanks to pass through each of the washing tanks. The method for producing a metal material according to the above aspect, wherein the cleaning tank passage time is set by a length of a washing tank in a moving direction of the cast rolled material. (23) The method for producing a metal material according to Item 21 or 22, wherein the cleaning tank passage time is such that the continuous casting rolled material is meandered in the washing tank and set by a meandering distance. (24) A method for producing a metal material according to Item 11, wherein the water is washed after the pickling or after the alkaline washing. Further, the apparatus for producing a metal material according to the present invention has the configurations described in the following (25) to (27). (25) A manufacturing apparatus for a metal material, comprising: a plurality of rotary molding members that are disposed opposite to each other in a casting space, and are driven in a casting direction; and a rotating molding member for at least a portion At least a portion of the lubricating oil spray means for intermittently applying a lubricant spray. (26) The apparatus for manufacturing a metal material according to the twenty-fifth aspect, further comprising: rolling means for rolling the cast material in a subsequent stage of the rotary mold member; and containing the arrangement after the rolling means The section is used to contact the rolled rolled material after rolling with a pickling tank of an acid washing liquid or a plurality of washing tanks contacting an alkali washing tank of an alkali washing liquid; and the washing tank is arranged in series. (27) The apparatus for producing a metal material according to Item 26, comprising at least one pickling tank for contacting the cast rolled material with the pickling liquid and at least one alkali washing tank contacting the alkali washing liquid. Further, the metal material according to the present invention has the composition of the following (28) - (3) 1270423 (2 8 ), a metal casting material characterized by using the continuous casting method described in the first or nth aspect. Manufacturing. Further, the metal working material of the present invention has the constitutions described in the following (29) and (30). (2 9 ) A metal working material obtained by subjecting a metal material described in item 28 to secondary processing. # (30) The metal working material according to item 29, wherein the secondary processing is one or more of plastic processing and cutting processing. According to the method for producing a metal material according to the invention of (1), in the continuous casting, an appropriate amount of lubricating oil can be applied to the rotary molding member to prevent coagulation. In addition, it can prevent the surface quality from deteriorating due to excessive lubricating oil, and produce a metal material with excellent surface quality. Moreover, the timing and application amount of the lubricating oil spray can be controlled at a low cost. According to the invention of (2), the above effect can be obtained by the use of the casting wheel and the continuous casting for closing the groove and the continuous belt as the rotary mold member. According to the invention of (3), the above effect can be exerted on the groove of the casting wheel. According to the invention of (4), the above effect can be exerted on the groove of the casting wheel, and the amount of lubricating oil can be reduced. According to the invention of (5), the above effect can be exerted on the continuous belt. According to the invention of (6), the spray range is maintained without interruption. According to the invention of (7), the lubricating -11 - (8) (8) 1270423 oil can be applied in a minute and uniform manner. According to the invention of (8), the lubricating oil can be applied in a minute and uniform manner. According to the invention of (9), the lubricating oil can be applied in a minute and uniform manner. According to the invention of (]〇), it is possible to have a suitable total coating amount of the lubricating oil. According to the invention of (1), the cast rolled material is subjected to multi-stage washing in which pickling or caustic washing is carried out, and the surface of the cast rolled material is blackened to remove a metal material having excellent surface quality. According to each of the inventions (1 2) to (14), since the cast rolled material is continuously washed, productivity can be improved and cost can be reduced. In particular, according to the invention of (13), since it is "cleaned on the line of continuous casting and rolling, it has high productivity. According to the invention of (1), since most of the cast rolled materials are washed under the same conditions at the same time, it is less susceptible to fluctuations in pH and liquid temperature of the washing liquid, and engineering management is also easier. In addition, it is easier to set and change the washing conditions. According to each of the inventions (16) to (20), an excellent cleaning effect can be obtained. 〇 According to the inventions of (2 1 ) to (23), the washing time can be adjusted. According to the invention of (2), the cleaning liquid can be prevented from being brought to the next stage. According to the manufacturing apparatus of the metal material of each of the inventions of (25) to (27), the metal material having excellent surface quality can be produced by the production method described in (1) or (1). -12- 1270423 Ο) (28) The metal material is a metal material with excellent surface quality. According to the metal working material of (29), the metal material described in (1) can be made into an arbitrary shape. According to the metal working material of (30), the metal material described in (28) can be made into an arbitrary shape by plastic working and/or cutting. [Embodiment] The method for producing a metal material according to the present invention is to apply an appropriate amount of lubricating oil by intermittently applying a lubricating oil to a molten metal contact surface of a rotary mold member during continuous casting. Further, in the method for producing a metal material according to the present invention, the metal material continuously cast by the above method is subjected to rolling after casting, and the casting of the cast rolled material is carried out in multiple stages. Hereinafter, referring to the apparatus for carrying out the method, (A) a method of intermittently spraying a lubricating mold on a rotary casting member during continuous casting, and (B) performing a washing of the cast rolled material in multiple stages. Method # for detailed description. In the following description, the metal material which is not subjected to rolling by continuous casting is referred to as "cast material" or "cast material (S 1 )", and the metal material which is continuously rolled and then rolled is called "casting rolled material" or "cast rolled material (S2)". [A] Method for intermittently applying a lubricating oil to a rotary mold member during continuous casting Figs. 1 and 2 are schematic views showing a continuous casting apparatus (1) for carrying out the method. -13- (10) 1270423 The continuous casting device (1) has a casting wheel (10) and a continuous belt (1 1) for use as a rotary molding member.

The outer surface of the casting wheel (10) has a groove (1 2 ), and is cooled by supplying cooling water by a nozzle (1 3 a ) disposed inside the wheel and a nozzle (1 3 b ) disposed on the outer side of the wheel. . On the other hand, the continuous belt (1 1 ) is hung on the annular endless belt of the casting wheel (10) and the tension adjusting wheel (I 4 ) for closing the groove of the casting wheel (1 〇) (1) 2) to form a casting space (15). Further, the continuous belt (1 1 ) may be supplied with cooling water from the outside to be cooled, or a heater may be disposed outside to perform heating. The groove (1 2 ) of the casting wheel (10) is spray coated with a lubricating oil by a nozzle (16) of a spray device. Further, the continuous belt (1 1 ) is subjected to spray coating of lubricating oil by means of a nozzle (17) of the spraying device. Thereby, it is possible to apply a lubricant coating to any part of the inner surface of the casting space (15). The lubricant sprays of the nozzles (16) and (17) are carried out in a batch manner depending on a specific cycle. In Fig. 1, (18) is a pressure roller for the purpose of adhering the continuous belt (1 1 ) to the casting wheel (10), and (19) is for supplying molten metal to the casting space (15). (Μ) for the purpose of feeding tanks. In the above continuous casting apparatus (1), the molten metal (Μ) supplied from the feeding tank (1 9 ) to the casting space (15) is cooled by the casting wheel (10) and the continuous belt (1 1 ), and The inside of the contact surface is solidified toward the inside, and the cast material (S 1 ) is continuously formed as the casting wheel (1 〇) and the continuous belt (11) are driven to rotate. Since the inner surface of the casting space (15) is coated with lubricating oil, the condensation of the molten metal can be prevented, and the casting of the cast material (S 1 ) -14-(11) 1270423 can be smoothly performed. The spraying cycle of the lubricating oil is based on the moving speed of the molten metal contact surface of the rotary molding member, the primary spraying range, and the first spraying time, etc., in such a manner that the lubricating oil is not interrupted and is not excessive, and the following method is used. Make settings. As shown in Fig. 3A, the nozzles (丨6) and (丨7) are circularly sprayed with a diffusion angle Θ (°) and placed on the molten metal contact surface of the rotary mold member. The height of (mm), that is, the height of h (mm) provided on the groove (12) of the casting wheel (10) and the continuous belt (11). Under the above nozzle condition, the spray range (P 1 ) of the stationary state is a circle of 2 htane / 2 (mm) in diameter, and the distance Lp (mm) of the casting direction of the spray range (pi) is 2 htan 0 / 2 of the same diameter ( Mm). Next, when the groove (12) and the continuous belt (12) are moved at the moving speed V (mm/s), and the time required for one spray is t ( s ), the groove (12) and the period of one shot are used. The continuous belt (12) moves Vxt (mm). Since the spraying is continued in this movement, the injection range (P2) of the moving state of the rotary mold member is an ellipse having a long diameter of Lp + Vxt (mm). Therefore, the distance in the casting direction of the first spray range (P2) in the moving state is Lp + Vxt (mm) (Fig. 3B). From the above, when the nozzles (16) and (17) are subjected to intermittent spraying of lubricating oil, the moving speed of the molten metal contact surface of the rotary mold member is V (mm/s), and the first spraying time is t ( s), the distance of the casting direction of the spray range of the static state of the rotating pattern is LP (mm), and the number of sprays (T) in 1 second is V / (Lp + Vxt ) times' -15- (12) 1270423 The spray range (P2) shown in Figure 4A is continuous without interruption. When the number of sprays (T) is less than V/(Lp+Vxt), uncoated portions appear in the casting direction. On the other hand, as shown in Fig. 4B, the more the number of sprays (T) is increased, the more the repeating portion (P 3 ) of the spray range (P 2 ) is, so that it is a continuous spray of 1 / t times. Since the continuous spray causes an excessive amount of coating, the present invention excludes the manner of continuous spraying, and it is recommended to use 3V/(Lp+Vxt) times as the upper limit of the number of sprays which does not cause an excessive range. With this,

The number of sprays (T) in 1 second should be V / ( Lp + Vxt) ~ 3V / ( Lp + Vxt ). Further, as shown in Fig. 4B, since the unsprayed portion in the width direction can be reduced by repeating the spray range (P2), the number of sprays (T) in one second is preferably V/(Lp+Vxt)~2V/ (Lp+Vxt). In addition, the spray pattern and the circumference (P 1 ) of the stationary state in the illustrated example are circular, since the intermittent spray causes the uncoated portion to appear in the width direction, so the number of sprays (T) is set to be more than V/( Lp + Vxt), a repeating portion (P3) is formed, and the number of times of spraying (T) is set such that the length of the casting portion of the repeating portion is Lp/2 or more. In this state, there is no uncoated portion, and there are less excess coating portions. However, the shape of the spray is not limited to the circular shape of the illustrated example, and the shape and area of the uncoated portion may vary depending on the shape of the spray. Therefore, the setting of the number of sprays (T) may be appropriately set in accordance with the spray shape so that no excess uncoated portion is present. In order to achieve a small and uniform coating, the spraying of the lubricating oil should be carried out by means of a spraying means capable of performing a quantitative micro-pressure feeding. It is recommended to use the lubricating oil supply device using the plunger pump (20) in the example shown in Fig. 5. The plunger pump (-16-1270423 (13) 2 〇) drives the plunger (2 4 ) inserted into the cylinder (23) in the front-rear direction by a motor (2 5 ) or the like, and ejects from the lubricating oil tank (2 2 ) The lubricating oil introduced into the cylinder (23) via the check valve (2 1 a ). The primary discharge amount is controlled by the forward distance of the plunger (24), and the time required for one discharge is controlled by the advancement distance and the advance speed of the plunger (24). The lubricating oil sprayed from the cylinder (23) is supplied to the spray nozzles (16), (17) via the line (26). On the other hand, the nozzles (6) and (17) are inserted into the inner tube (28) for supplying the lubricating oil sprayed by the plunger pump (20) inside the tube (27) provided with the compressed gas. In the double structure, an opening is formed at the front end of the inner tube (28) located in the outer tube (27). Next, the lubricating oil supplied to the inner tubes (28) of the nozzles (16) and (17) is accelerated at the end of the outer tube (27) by mixing with the compressed gas, and is advanced at the nozzle tip at a high speed. spray. Further, in Fig. 5, (2 1 b ) is a check valve for the purpose of preventing backflow of lubricating oil. Further, there is no limitation on the kind of the above gas, however, it is considered to be used in the vicinity of the molten metal, and flammable gas should be avoided. In terms of cost, air is best, and other gases such as nitrogen and argon. When the lubricating oil supply device using the plunger pump (20) as described above and the spray device using the nozzles (16) and (17) of the double structure are used, the total amount of lubricating oil sprayed can be utilized by the plunger pump (20). The amount of discharge and the number of discharges are controlled, and the compressed gas for increasing the flow rate is controlled independently of the amount of lubricant. Therefore, it is possible to carry out a quantitative spray of a small amount of lubricating oil in a state where the flow rate is fast, and it is also possible to perform fine flow rate adjustment. In addition, the gas flow rate is increased, and the foreign matter attached to the rotary -17-(14) 1270423 rotary mold member can be removed. In addition, by controlling the gas flow rate to adjust the cooling effect, the temperature of the rotary mold member can also be adjusted. For example, the gas flow rate can increase the cooling effect and promote the temperature decrease, and the other flow rate can suppress the temperature decrease. When this temperature is adjusted, the gas flow rate can be adjusted without the amount of oil. On the other hand, in the case of other spraying methods, for example, when the mist method is used, the viscosity of the lubricating oil and the gas density change depending on the gas pressure, and the amount of the spray may fluctuate. In addition, the gas flow rate must be reduced to reduce the amount of spray. However, if the gas is reduced, there may be cases where the lubricant cannot be attracted or attracted. In addition, since the flow rate is slow and it is susceptible to ambient gas, the lubricant sprayed to the rotary mold member may not reach the pre-stage. It is recommended to use the plunger pump spray method described above. Further, when the first spraying time of the lubricating oil is 0.001 to 1 or less, the spray range is too narrow, and the effect of application by intermittent spraying is inferior. On the other hand, the action surface of the spray device, such as when spraying over Is, does not conform to reality. The spray is good for 0.005 ~ 0.1s. The first spray amount of the lubricating oil is preferably 〇·001~1 ml. When the squat is down, the operating surface of the spray device such as a pump does not conform to the current aspect. When it exceeds 1 ml, the coating amount is excessive. 1 time spray 0.002 ~ 0.1ml 〇 In addition, the total coating amount of lubricating oil is 5~150ml/h {Using airflow, such as increasing the reverse, reducing the spray and temperature of the lubrication negative pressure, sometimes when the flow rate is required, The amount of unsteady flow affects the location. (20) s. 0.001s is evenly distributed, and the pump is the most .001 ml. The other quantity is preferably I. 5 m 1/h -18- (15) 1270423 When the following, the effect of preventing the condensation of molten metal is not fully obtained. If it exceeds 150 ml/h, it is wasteful due to excessive supply. The total coating amount is preferably 5 to 100 ml/h, more preferably 5 to 50 ml/h. In addition, the appropriate range of total coating amount will vary depending on the coating area. Further, in the lubricating oil spray device using the plunger pump (20) shown in Fig. 5, the gas flow rate is preferably 1 to 30 Torr/min. When the pressure is 1 Ι/min or less, it is difficult for the lubricating oil to adhere to the rotary mold member. On the other hand, when it exceeds 30 Ι/min, the rotary mold member is supercooled, and the surface of the cast material is liable to be cracked due to rapid cooling. In the foregoing range, the lubricating oil can be attached and have a sufficient flow rate, and the rotary mold member is not supercooled. The gas flow rate is preferably 2 to 20 1 / min. In the present invention, the lubricating oil used in the continuous casting is not limited, and a well-known lubricating oil such as castor oil can be appropriately selected. However, in order to smoothly achieve a high-speed spray for a short period of time, a low-viscosity lubricating oil is preferred. The viscosity of the lubricating oil is preferably 〇1 to 5 Pa·s, more preferably 0.3 to 2 Pa·s. In the above examples, the lubricating oil is spray applied to the fully molten metal contact surface of the rotary mold member, however, it is also contemplated that only one of the combined rotary mold members is spray coated, and Only one of the molten metal contact faces of the rotating mold member is spray coated. The shape of the rotating mold member can cause the molten metal to condense in some parts, and some parts will not condense or hardly condense, and only the application of lubricating oil to the condensed part can achieve the purpose. In addition, it is only applied to the necessary parts, and the lubricating oil after casting is relatively simple to clean, and the consumption of lubricating oil can also be reduced. In addition, when rolling is carried out after casting -19- (16) (16) 1270423, it is also possible to suppress the occurrence of blackening caused by lubricating oil. When the casting wheel (10) and the continuous belt (12) are continuously cast, the side surface (12 a) of the groove (12) of the casting wheel (1 容易) is easily condensed. Hereinafter, an example of spraying and applying a lubricating oil to both side faces (12a) and (12a) of the groove (12) will be described with reference to the lubricating oil spray control device of Fig. 6. In Fig. 6, two lubricating oil spray nozzles (16) facing the both side faces (12a) of the casting groove (: [〇) groove (丨2) are disposed. The nozzle (16) is a double-structured nozzle identical to that shown in Fig. 5, and the lubricating oil supplied from the plunger pump (20) is mixed with the compressed gas and sprayed (°). The control device is configured to drive the plunger pump (20) according to the number of rotations (X 1 ) detected by the sensor (3 1 ) of the rotating shaft of the casting wheel (! 〇) and other input conditions. A motor (25), and a flow regulator (33) for regulating the flow of gas compressed by the compressor (32) provides a control signal. That is, the moving speed (V) of the side surface portion (1 2a ) of the spray object is calculated based on the detected number of rotations (X 1 ) of the casting wheel (1 〇) and the outer diameter of the set wheel, and the set spray is used. The diffusion angle (Θ), the distance from the molten metal contact surface to the front end of the nozzle (16) (h)', and the first spray time (one discharge time of the plunger pump (20)) are calculated by applying one spray. The distance between the casting direction of the cloth is β (Lp ), and the number of sprays (T) between 1 second. Secondly, according to the calculation 値, the motor (25) is provided with a control signal (X2), so that the two plunger pumps (20) spray a certain amount of lubricating oil in a ratio of T times in one second, and through each pipeline (3 4a) ) Introduced into the inner tube of two double tubes (35a). On the other hand, according to the gas flow rate set by (17) 1270423, a control signal (X3) is supplied to the two flow regulators (3 3 ), a compressed gas of a specific flow rate is sent, and is introduced into the above-mentioned double pipe via a pipe (36a). (35a) Outside the tube. The inner tube and the outer tube of the double tube (35a) are in communication with the inner tube (28) and the outer tube (27) of each of the nozzles (16), and are supplied to the nozzle via the double tube (3 5 a ) (1) 6) The lubricating oil and compressed gas are mixed on the front end side of the outer tube (27) and sprayed at a high speed. The above-described lubricating oil spray control method is not limited to spraying the side surface portion (12a) of the groove (1 2 ). The number of nozzles (16) and the position of the nozzles may be appropriately changed, and the lubricant may be sprayed on the bottom (12b) of the groove (12), the continuous belt (1 1 ), or any other position of the rotary mold member. In addition, when multiple nozzles are used, the plunger pump and flow regulator can be placed in separate systems, making it easy to spray each nozzle under different conditions. Further, since the moving speed of the continuous belt (11) of the continuous casting apparatus (1) is substantially the same as the peripheral speed of the casting wheel (10), the groove is calculated by the number of revolutions (X1) of the casting wheel (1 〇). The moving speed of (12) can be directly used as the moving speed of the continuous belt (11). Therefore, it is not necessary to detect the moving speed of the continuous belt (1 1 ), and the lubricating oil sprayed by the nozzle (17) can be controlled by the piping (34b), (36b) and the double pipe (35b). However, there is a casting method in which the rotating mold member has a temperature difference and the solidification speed is different, and the final solidified portion is moved from the center to the vicinity of the surface (hereinafter referred to as "directional solidification" or "continuous casting of directivity solidification". 21 - (18) 1270423 Method of making"). In the continuous casting apparatus (1), the casting wheel (10) is cooled, on the other hand, the continuous belt (11) is heated, and the continuous casting of the casting material (S1) is performed by directivity solidification. 1 1 ) The vicinity of the contact portion becomes a final solidified portion and segregation occurs. In general, the final solidified portion is prone to casting defects or thermal cracking such as shrinkage cavities, and the cast material in the vicinity of the surface is rolled, and the crack is enlarged and deepened. At this time, the final solidified portion on the side of the continuous belt (11) is cut off before the subsequent processing, and the crack can be prevented from being enlarged and deepened. In addition, if there are fine cracks or foreign materials on the surface, it can be prevented from being enlarged or containing foreign matter if it is removed before processing. In the case of a directional solidified cast material, since the final solidified portion exists in the vicinity of the surface, it is easily removed. , the intermittent spray coating method of the lubricating oil of the present invention for continuous casting of such directional solidification, because the continuous belt (1 1 ) is not cooled and the lubricating oil does not dry and adhere, but is optimal Continuous casting is carried out in the state. In addition, it is easy to obtain the above effects by controlling the amount of primary spray of the lubricating oil, the number of sprays per second, and the spray time of one spray. Further, in the above directional solidification, the heating temperature of the continuous belt should be [liquidus temperature of the cast metal χ0·3 5] to [liquidus temperature]. The rotary mold member to which the method of the present invention is applied is not limited to the combination of the casting wheel and the continuous belt. In other aspects of the rotary molding member, for example, the roller is disposed opposite to the rotation axis and disposed opposite to each other with a certain distance. Further, the present invention may include not only a continuous casting method of intermittently spraying lubricating oil to all of the rotary casting molds, but also a -22-(19) 1270423 intermittent spraying for only a part of the rotary molding members. For example, when one of the grooves (12) or the continuous belt (11) of the casting wheel (10) of the rotary molding member of the illustrated example is subjected to intermittent spraying. Therefore, the present invention is directed to the intermittent spraying of lubricating oil to a part of the rotary casting mold, and the continuous spraying of lubricating oil to other rotating molding members, or the formation of a lubricating layer to other rotating molding members. According to the above method, since the rotary mold member can be coated with an appropriate amount of lubricating oil, it is possible to surely prevent the condensation. Moreover, it is possible to prevent deterioration of the surface quality caused by excess lubricating oil, and to manufacture a metal material having excellent surface quality. Since the specific operation is controlled by the spray timing and the coating amount of the lubricating oil, it can be carried out at a lower cost than when the various lubricating layers are formed as described in the above Patent Documents 1 to 3. In addition, since the amount of lubricating oil used does not become excessive, the blackening caused by the lubricating oil can be reduced, and the surface cleaning to remove the black color is also simpler. In addition, since the method of the present invention optimizes the amount of lubricating oil sprayed to the rotary mold member, it is only necessary to change the spray condition of the existing lubricating oil spray means or to add an intermittent sprayable lubrication to the existing continuous casting apparatus. The oil spray means can be implemented. It is easy to implement without requiring a large-scale device change such as a rotary molding member or its control device. [B] Method for washing the cast rolled material in multiple stages In addition to the continuous casting of the cast material while performing the intermittent spray coating of the lubricating oil, the method performs continuous casting and then performs rolling to produce casting and rolling. Rolling of materials and washing in multiple stages-23- (20) (20)

1270423 Washing of cast rolled materials. Although intermittent spraying is used, however, the lubricating oil still adheres to the carbide caused by the casting of the rolled material 5, or the household f during the casting to rolling still causes blackening. This method utilizes multi-stage cleaning to improve the surface quality of the cast rolled material, and the engineering of the continuous casting of the first project is the same as the above-described engineering of the spray coating of the lubricating oil intermittently. Therefore, the description of this project is omitted. The rolling engineering of the second project is to provide a rolling apparatus in the subsequent stage of the combination of the rotary casting and casting apparatus, and in the continuous casting and rolling method, for example, the aluminum wire continuous manufacturing rolling method (Hunter) method, 3C method, and roll casting method. Wait. There is no limit to the shape of the shape. The cast rolled material is generally circular in cross section. However, the present invention is limited in cross-sectional shape, cross-sectional diameter, and plate. In addition, it is not limited to cross-section round or sheet profiled profiles. The cleaning project of the third project is used for casting and rolling | 2% 'net, and it can be built while moving the rolled material (&, referred to as "continuous washing"), or it can be carried out after parking * (Hereinafter, referred to as "batch washing") & 'Net can also be continuously implemented after casting and rolling, or can be implemented in other projects. Under &, for continuous washing and batch washing, I is suppressed to the minimum: surface, so the oxide produced by lubrication f 〖de-casting rolled material 〇 [A] continuous casting 〖 cloth method said P mode Rolling is performed after the continuous i of the member. , SCR method, Han: Casting rolled material, 丨 shape or sheet, no thickness, etc., can also be applied to the implementation of multi-stage coffin: multi-stage cleaning: cut casting and rolling. In addition, a detailed description will be given after continuous rolling. -24- (21) 1270423 [Continuous washing] Fig. 7 is an example of a manufacturing apparatus (2) for continuously casting, rolling, and cleaning. The manufacturing apparatus (2) is composed of a continuous casting apparatus (1 (40) and a cleaning unit (50). The continuous casting apparatus (1) is a apparatus manufactured by the first drawing and the second drawing, and is provided with a casting wheel. (1 0 ) and the continuous belt (1 1 ) and ( 1 7 ) of the intermittent spray of 1 1 oil. The rolling section (40) has a multi-array rolling roller in the 3 direction, and in the seventh figure, only the The two-direction roller. The cleaning unit (50) sequentially arranges the first pickling tank (5 1 (5 2 ), the final pickling tank (5 3 ), and the washing tank 52), ( 53 ) Thereafter, the water washing tanks (54) and 56) are disposed, and the drying tank (57) is disposed in the subsequent stage. In the above-described continuous casting apparatus (1), the casting wheel (10) is used in addition to the spraying (17). In addition to the continuous spray coating (1 1 ), the casting material (S 1 ) is continuously formed with the casting wheel (10) and the continuous belt rotation drive. S1) a small-diameter cast rolled material (S2) having a circular shape on the rolling portion (40). The cast dairy material (S2) is in the cleaning portion (50) according to (51), (54), (52), ( 55 ) , ( 53), respectively, receiving pickling-water washing-alkali washing-water washing-acid washing-outside, in the drying tank (57), the water attached to the surface is removed, and the rolling section Lubrication (41) is carried out in the continuous casting shown. This), the washing tank (51), ((55), (mouth (16), the interval of the oil (1 1)), if the first is rolled into the water through each tank (56) After washing, it is dried and dried. -25- (22) 1270423 In the meantime, the oxides and carbides which are regarded as blackening on the surface of the cast rolled material (S2) are removed, and the wire having good surface quality is continuously produced. In the method, by performing multi-stage washing including pickling or caustic washing, the metal oxide and carbide formed on the surface of the cast rolled material can be surely removed, and a cast rolled material having excellent surface quality can be obtained. The lubricating oil used in continuous casting is suppressed to the minimum necessary amount, and the cleaning liquid has less dirt, and the washing time and the consumption of the washing liquid can be minimized. • The use of pickling or caustic washing is used. The above effect can be obtained by washing in a plurality of stages, however, by using two kinds of different washings which are combined with alkali washing and pickling, a higher washing effect can be obtained, and in particular, the final washing is preferably pickled. It is recommended to use the alkaline washing-acid washing 2 stage washing. In addition, carry out In the three-stage washing which is added with pickling before the washing in the embodiment, a more excellent washing effect can be obtained. Further, the pickling can be increased to shorten the alkali washing time thereafter. Stage washing is not limited to the above 2-stage ® or 3-stage washing, and may be any combination. For example, pickling-alkali washing, caustic washing, pickling-alkali washing, only pickling, multi-stage washing, Only the multi-stage washing of the alkali washing and the multi-stage washing of the four-stage or more are included in the scope of the present invention. In addition to the pickling and the alkali washing, the surfactant may be additionally washed. It may be a immersion cleaning liquid or a spray of a cleaning liquid. When immersing and washing, the washing liquid may be filled in the tank, however, the washing liquid which is in contact with the surface of the cast rolled material is prevented from staying on the surface. In order to prevent the retention means, for example, the cleaning solution in the tank is circulated, and the recovery and re-supply of the cleaning liquid outside the overflow tank of -26-(23) (23) 1270423. Ultrasonic vibration can also improve the cleaning effect. After pickling and caustic washing, water should be washed to prevent the washing liquid from being carried to the next washing tank. For the washing liquid used for pickling, for example, nitric acid is used as an excellent washing effect. , sulfuric acid, phosphoric acid, acetic acid, hydrochloric acid, hydrofluoric acid, or a mixture thereof, wherein nitric acid, sulfuric acid, hydrochloric acid is preferred, nitric acid or sulfuric acid is preferred. The pH of the cleaning solution should be 5 or less, and pH 1 to 3 is better. Further, the liquid temperature is preferably 20 to 8 (TC is preferred. In terms of the washing liquid used for the alkaline washing, from the viewpoint of having an excellent washing effect, for example, an aqueous sodium hydroxide solution, an aqueous potassium hydroxide solution, or a mixture thereof Among them, an aqueous solution of sodium hydroxide is preferred. The Ph of the cleaning solution should be 9 or more, preferably 12 to 14. Further, the liquid temperature is preferably 20 to 80 °C. The washing time of the pickling and the alkali washing is not limited, and can be appropriately set in accordance with the degree of blackening of the surface of the cast rolled material, the pH of the washing liquid, and the liquid temperature. In addition, additives can be added to the pickling solution and the alkaline washing solution to improve the cleaning effect. For example, in the case of an alkali washing solution, a small amount of sodium gluconate may be added in order to prevent the molten metal from being supersaturated to form hard scale. In addition, after pickling and caustic washing, in order to avoid bringing the cleaning liquid to the next washing tank, it should be washed with water. In the case of continuous washing, the moving speed of the cast rolled material is limited to the casting rolling speed, and must be moved at its speed and washed. Therefore, the washing time of each washing stage is set to -27-(24) (24) 1270423, which is the time required for the casting rolled material to pass through the washing tank. To set. Specifically, for example, a method of setting the length of the washing tank in the moving direction of the cast rolled material, or a method of setting the cast rolled material in the washing tank and setting it by the meandering distance. Further, the washing of the cast rolled material may be carried out after cooling the cast rolled material to normal temperature, but it may be carried out at a high temperature (e.g., 400 ° C). When the cleaning at a high temperature is carried out at a high temperature, the washing liquid at a normal temperature is heated to contact the high-temperature rolled material, and the same effect as in the case of installing the heating device in the washing tank can be obtained. At this time, the pH of the washing liquid is largely changed by the vaporization of each washing tank. At this point, replenish the water at any time and stir or circulate it to maintain the optimum pH (optimum concentration). Further, by providing a water-cooling tank in the first stage of the first washing tank, it is possible to suppress the pH change of the washing liquid caused by the vaporization of the water in the pickling tank or the alkali washing tank in the subsequent stage. Further, by installing a cooling device in each of the cleaning tanks, it is possible to prevent the temperature of the cast rolled material from rising due to heat and heat of reaction. Further, when the desired cleaning liquid temperature is lower than room temperature, a heating device such as a heater may be arbitrarily installed. In the above continuous washing, since the surface is continuously washed on the continuous casting and rolling line, it has high productivity and low cost. Further, in the case of performing multi-stage washing in a project other than continuous casting and rolling, it is possible to pass through the above-described multi-stage washing tank while winding up the cast rolled material wound up to the coil. The adjustment of each washing time can also be appropriately set by using the length of the washing tank and the meandering distance. As shown above, when other projects are subjected to multi-stage cleaning, the productivity is much higher than the conventional method of removing blackening by surface cutting. -28- (25) 1270423 [Batch cleaning] When the batch of the cast rolled material is washed, the multi-stage washing is performed after the cast rolled material is cut to a necessary length. The production of the cast rolled material is carried out in the same manner as the above-described continuous rolling of the cast rolled material, and is carried out, for example, by a casting and rolling apparatus comprising a continuous casting section (1) and a rolling section (40). The cutting may be carried out after casting and rolling, or may be carried out after being wound up to the wire and then rolled back. The multi-stage cleaning is carried out in batches in each washing tank. The type of the washing liquid, the setting of the pH, the liquid temperature, the combination of the washing liquid, and the washing order are the same as the above-described continuous washing. When the batch is cleaned, since most of the cast rolled materials are washed at the same time, it is less susceptible to changes in the pH and liquid temperature of the washing liquid, and the project management is also easier. In addition, it is easier to set and change the washing conditions because it is carried out in other projects than casting and rolling. The method for producing a metal material of the present invention can be applied to continuous casting of all metals (including the implementation of multi-stage cleaning), however, it is recommended to be applied to continuous casting of aluminum or aluminum alloy, and copper or copper alloy, in particular, Ideal for continuous casting of aluminum or aluminum alloys. The aluminum or aluminum alloy includes pure A1 series, Al-Cu system, Al-Si system, 八1-]\^ system, 八1,1^^-31 series, and various alloys incorporated into the 1-Zn-Mg system. In particular, since the alloy other than the pure aluminum is likely to form a segregation layer on the surface, in the continuous casting method of the above-described directivity solidification, the intermittent spray coating using the lubricating oil of the present invention can obtain a large effect -29- (26) (26) 1270423 The metal material of the present invention is a cast material or a cast rolled material produced by the above method. Since a suitable amount of lubricating oil is applied to the rotary mold member during continuous casting, casting can be performed in a state where the condensation is surely prevented. Moreover, it is possible to prevent the surface quality caused by excess lubricating oil from being lowered, and to obtain a metal material having excellent surface quality. Further, since the specific operation at the time of manufacture can be controlled by the spray timing and the coating amount of the lubricating oil, the cost is lower than the cost of forming various lubricating layers described in the above Patent Documents 1 to 3. Further, when the cast-rolled material of the multi-stage washing is carried out, since the blackening of the surface is removed, the surface quality is further improved. Further, the metal material can be subjected to secondary processing to obtain a metal working material having an arbitrary shape. For secondary processing, for example, one or more processing methods in plastic working and cutting processing. The aforementioned plastic working includes rolling, extrusion, drawing, forging, bending, stamping, and the like. Further, it is also possible to carry out two or more kinds of plastic working such as wire drawing in any order after rolling. In addition, it is also possible to perform cutting after plastic working. There is no limit to the shape of the product. Since the metal working material has been removed from the metal oxide on the surface of the metal material and the foreign matter such as the carbide derived from the lubricant, it does not remain and has a sound metal surface. The manufacturing apparatus of the metal material of the present invention has at least the above plural The rotary molding member and the lubricating oil spraying means may further have the above-described rolling section and cleaning section as necessary. For example, the other means for supplying the molten metal and the means for transporting the cast material or the cast $L material are not limited, and various well-known means and configurations can be employed. Further, the metal material produced by the method of the present invention can be arbitrarily chased -30-(27) 1270423 plus various works. For example, a rolled portion having one set or a plurality of array rolling rolls is added in the subsequent stage of the continuous casting apparatus, and after casting, it is milked to form a desired shape. In other words, the above configuration omits the configuration of the above-described cleaning portion, and is a method for producing a cast rolled material that has not been subjected to multi-stage cleaning. Further, it is also possible to arbitrarily cut the cut portion of the surface portion of the cast material in the subsequent stage of the continuous casting apparatus. In general, the surface of the cast material may have defects such as fine cracks, segregation layers, and uneven oxide films. However, after the continuous casting, the surface portion is removed, and the above defects are removed to improve the quality of the cast material. Further, the cut portion may be removed from the final solidified portion formed in the vicinity of the surface due to the above-described directivity solidification. Further, the cut portion and the rolled portion may be disposed in the subsequent stage of the continuous casting apparatus. When such a device is constructed, casting, surface layer cutting, and rolling may be continuously performed. Of course, the multi-stage cleaning of the present invention can also be combined after the aforementioned rolling. [Examples]

[A] Intermittent spray of continuously cast lubricating oil The continuous casting test of TIS A606 1 was carried out using the continuous casting apparatus (1) shown in Figs. 1 to 3B. The casting wheel (10) used in the continuous casting apparatus (1) has a diameter of 1400 mm, and the sectional area of the groove (12) (= the sectional area of the casting space (15)) is 2200 mm 2 , and the continuous belt (11) used. The width is 100mm. Further, the nozzles (16) and (17) for spraying the lubricating oil are nozzles in which the lubricating oil discharged from the plunger pump (20) of Fig. 5 is mixed with the compressed gas and then sprayed to have a double structure. In addition, the lubricating oil supplied to the inner tube (28) of the nozzles (1 6 ) -31 - (28) 1270423 and (1 7 ) is castor oil (viscosity · 0.6 8 0 Pa · s ) and supplied to the outside. The compressed gas system of the tube (27) uses air. Further, the lubricating oil and the compressed gas system supplied to the nozzles (16) and (17) are controlled by the lubricating oil control device shown in Fig. 6. In addition, in the sixth drawing, for convenience of explanation, the configuration of the two casting wheel nozzles (16) and one continuous belt nozzle (17) under the same conditions by one motor (25) is used. In the present embodiment, the number of nozzles is changed in accordance with the following spray test, and the number of motors, the control signal system, and the piping are also appropriately changed in order to control the supply of the lubricating oil and the compressed gas to the respective nozzles. [spray test I]

One lubricating oil spray nozzle (16) is disposed in front of the molten metal supply portion of the casting wheel (1 〇), and one lubrication is disposed in front of the molten metal contact portion of the continuous belt (1 1 ) Oil spray nozzle (17). The nozzle (16) on the casting wheel (1 〇) side is disposed at right angles to the groove (1 2 ), and the bottom surface (12b) of the groove (12) to the nozzle (16), (17) The distance (h) of the front end is 50 mm for spraying the both side faces (12a) and the bottom face portion (12b) of the groove (12). Further, the nozzle (17) on the continuous belt (1 1 ) side is disposed at right angles to the continuous belt (1 1 ), and the continuous belt (1 Ο molten metal contact surface to the nozzle (16), ( 17) The distance (h) at the front end is 50 mm. The spray spread angle (Θ) of the nozzles (16) and (17) is adjusted to 45°, and -32-(29) 1270423 adjusts the spray shape to a circular shape. 'For the case, then draw the picture sharply ^^ set (1) day and turn into a moving casting wheel (1 〇),: I spray time (t) is 0.1 s, for the groove (1 2) and the continuous belt ( 1 1) The direction of movement 'The spray range can be kept continuous without interrupting the minimum number of sprays (T) in 1 second. The moving speed V of the casting wheel (1〇) and the continuous belt (11) is V 2 1 400χπ /60= 73.3 (mm/s) ° # The spray range (p 1 ) of the stationary state is 2htan0/2 = 2x5 0xtan ( 45° /2 ) = 41.4mm circle, and the diameter Lp is the spray range ( P 1 ) The distance of the casting direction. The distance L of the casting direction of the moving range of the spray range (P2) is L = Lp + Vxt = 4 1.4 + 73.3 x 0.1 = 48.7 (mm). = V/(Lp+Vxt) = 73. 3/48.7= 1.5s·1 It can be seen that the minimum spray number (T) in which the spray range (P2) becomes continuous during the movement is 1 · 5 times in 1 second. I Next, the number of rotations set to the casting wheel (1〇) When lrpm, the first spray amount of each of the nozzles (16) and (17) is 0.005 nU, the primary spray time (t) is 0.1 s, and the flow rate of the compressed gas is 7 Ι/min, the number of sprays is changed to perform casting. Test, for the coagulation during casting and the surface quality of the cast material (S 1 ). Table 1 is the evaluation results. -33- (30)1270423 Table 1 Spray conditions of casting wheel and continuous belt 1 spray time 0.1s, 1 spray amount: 0.005ml

No. Total spray volume* Evaluation times/s ml/h 1-1 1 18 No oil film formed and condensed 1-2 1.2 21.6 A little condensation occurred 1-3 1.5 27 No condensation occurred, the casting surface was good 1-4 2 36 No condensation occurred, the surface of the casting was good 1-5 4 72 No condensation occurred, the surface of the casting was good 1-6 8 144 No condensation occurred, the lubricant consumption was more 1-7 Continuous spray 180 No condensation occurred, the lubricant consumption was more * : Total spray volume of the casting wheel and continuous belt. In addition, it is set to be sprayed once for each of the nozzles (16) and (17).

When the amount of fog is 〇.〇〇5ml, the spray time is 0.2s, and the flow rate of the compressed gas is 7Ι/min, the number of sprays is changed to perform the casting test, and the surface of the coagulation and casting material (S 1 ) is cast. Quality is assessed. Table 2 shows the results of the evaluation. -34- (31)1270423 Table 2 Spray conditions for casting wheels and continuous belts 1 spray time t = 0.2 s, 1 spray volume: 0.0 0 5 m 1

No. Total spray volume* Evaluation times/s Ml/h 1-8 0.5 9 No oil film is formed and condensed 1-9 1 18 A little condensation occurs 1-10 1.5 21.6 No condensation occurs, the casting surface is good 1-11 2 27 No condensation occurred, the surface of the casting was good M2 4 36 No condensation occurred, the surface of the casting was good 1-13 Continuous spray 90 No condensation occurred, the lubricant consumption was large*: The total spray amount of the casting wheel and the continuous belt. [Spray Test II]

The nozzle (16) disposed in front of the molten metal supply portion of the casting wheel (1 〇) is increased into two, and referring to Fig. 6, the front end of each nozzle (16) is on both sides of the groove (12) ( The distance (h) of 12a) is 30 mm, and only the side faces (12a) of the groove (12) are sprayed. The spray spread angle (?) of the aforementioned nozzle (16) was adjusted to 30°, and the spray shape was adjusted to be circular. Further, in the same manner as the above-described spray test I, one nozzle (17) was placed in front of the molten metal supply portion of the continuous belt (?), and the distance (h) from the front end of the nozzle (17) was 50 nm. The spray diffusion angle (?) of the aforementioned nozzle (17) was adjusted to 45, and the spray shape was adjusted to be circular. -35- (32) 1270423 When the number of rotations of the casting wheel (10) is 1 rpm, and the spray time (t) of each nozzle (16), (17) is 〇·1 s, the groove (12) And the spray range (P 1 ) of the stationary state in the moving direction of the continuous belt (1 1 ), the spray range (P2 ) in the moving state, and the minimum number of sprays in one second for the purpose of maintaining the spray range without interruption ( T) is shown in Table 3. Number of casting wheel rotations: lrpm (V = 73.3mm/s) 1 time of spraying time (t): 0 · 1 s groove groove continuous belt Spray surface to nozzle tip distance (h) 30mm 50mm Diffusion angle (Θ) 30. 45. Spray range at rest (P1) Diameter (Lp) 16.1 mm round diameter (Lp) 41.4 mm round moving state spray range (P2) Casting direction casting direction distance (L): 23.4 mm Distance (L ) : 48.7mm Keep the spray range (P2) continuous 3.2 times 1-5 times minimum spray times (T)

Next, the casting wheel (10) is set to have a rotation number of 1 rpm, and the two nozzles (16) on the groove (1 2) side have a spray amount of 0.001 ml, one spray time (〇 0.1 s, compression). The gas flow rate is 5 Ι / min, and the continuous belt (11) is set to the nozzle (17); [the secondary spray amount is 0.00 5 nU, the first spray time (t) is 0.1 s, and the compressed gas flow - 36 - (33) 1270423 The quantity is 7 1/mhi, and the number of sprays is changed to carry out the casting test, and the surface quality of the coagulation during casting and the cast material (S 1 ) is evaluated. Table 4 shows the results of the evaluation. With No. 1 spray time 0.1s 1 spray amount: 0.001mlx2 Gas flow rate: 5 1/min 1 spray time t = 0.1s 1 spray amount: 〇.〇〇5ml Gas flow rate: 7 1/min Evaluation spray Times/s Total spray volume* ml/h Spray times/s Total spray volume ml/h IH 1 7.2 1 18 No oil film occurs and condenses II-2 2 14.4 1.2 21.6 A little condensation occurs ΙΙ-3 3.2 23.0 1.5 27 Not Coagulation occurs, the surface of the casting is good ΙΙ-4 4 28.8 2 36 No condensation occurs, the surface of the casting is good ΙΙ-5 8 57.6 4 72 Not Coagulation, casting surface is good ΙΙ-6 16 11.5 8 144 No condensation occurs, lubricating oil consumption is more ΙΙ-7 Continuous spraying 72 Continuous spraying 180 No condensation occurs, lubricating oil consumption is more* : The total of 2 nozzles is second The casting wheel (1 〇) is set to a rotation number of 1 rpm, and the nozzle (16) on the groove of the concave-37-(34) 1270423 groove (12) has a spray amount of 0.001 ml, and the first spray time (t) is 0.2s, the flow rate of the compressed gas is 10 Ι / min, and the continuous belt (11) is set to the nozzle (17), the first spray amount is 0.0 05ml, the first spray time (t) is 0.2s, and the flow rate of the compressed gas For 7 Ι/min, the number of sprays was changed to carry out the casting test, and the surface quality of the coagulation during casting and the cast material (S 1 ) was evaluated. Table 5 shows the evaluation results.

No. Groove continuous belt evaluation 1 spray time t= 0.1s 1 spray amount: 0.001mlx2 Gas flow rate: 101/niin 1 spray time t= 0.2s 1 spray amount: 〇.〇〇5ml Gas flow rate: 7 1/min Spray times/s Total spray volume* ml/h Spray times/s Total spray volume ml/h II-9 1 3.6 0.5 9 No oil film occurs and condenses 11-10 2 7.2 1 18 A little condensation occurs 11- 11 3 8.6 1.5 21.6 No condensation occurred, the surface of the casting was good 11-12 4 10.8 2 27 No condensation occurred, the surface of the casting was good 11-13 8 14.4 4 36 No condensation occurred, the lubricant consumption was 11-14 continuous spray 36 continuous Spray 90 does not condense, the lubricant consumption is large: the total of two nozzles -38- (35) 1270423 It can be seen from the above results that the intermittent spraying of lubricating oil can prevent condensation, and the surface of the casting can be continuously cast. Casting material. In addition, the lubricating oil is applied only to the side portion of the groove where condensation is likely to occur, and not only the condensation can be prevented, but also the consumption of the lubricating oil can be suppressed. [B] Multi-stage washing of the cast rolled material is carried out using the manufacturing apparatus (2) of the metal material having the continuous casting apparatus (1), the rolling section (40), and the cleaning section (50) shown in Fig. 7 After casting the rolled material, a surface cleaning test was carried out. The washing tanks (51) to (57) of the washing unit (50) can be appropriately increased or decreased or changed according to the washing process, and any washing tank is subjected to the immersion for a specific time in the washing liquid. In the following washing tests A to E and the comparative washing test, JIS A6 061 was used as the casting material, and the casting wheel (1 〇) and the continuous belt (1 1 ) of the continuous casting device (1) were lubricated. The cast material (S 1 ) having a polygonal cross section was produced by intermittent spraying, and the cast material (S 1 ) was rolled into a round bar shape having a diameter of 30 mm in the rolling section (1 〇) with reference to Fig. 8 . Material (S2). In addition, the lubricating oil in the continuous casting is the same as the Νο·ΙΙ-4 in Table 4, and the side surface (12a) and the continuous belt (1 1 ) of the groove (12) of the casting wheel (1 〇) are implemented. Intermittent spray. That is, the spray condition of the nozzle (16) on the groove (1 2 ) side is the first spray time (t ): 〇.ls, 1 spray amount: 〇.〇〇imi (per nozzle), number of sprays : 4 times / s, gas flow rate: 5 ml / min, spray condition on the continuous belt (1 1 ) side is 1 spray time (t) : 〇 · 1 s, 1 spray amount: 0.005ml, spray-39- (36) 1270423 Fog times: 2 times / s, gas flow rate: 7 ml / min. [Washing Test A] The washing tank of the washing unit (50) is an alkali washing tank (52), a water washing tank (55), a final pickling tank (53), and a water washing tank (56). The alkali-washing and pickling were carried out on the cast rolled material (S2) under the conditions shown in Table 6, and dried. In addition, the 'washing time' is adjusted by the speed adjustment of the casting and rolling. Table 6 Alkali wash final pickling blackening removal rate % Washing solution Washing time Washing conditions A-1 5 0〇C, 3 min Room temperature, 90 A-2 pH13, 4 min pHl nitric acid, 100 A-3 hydrogen Sodium oxide 5 mi η 1 mi η Washing 100 [Washing test B] The washing liquid and washing time of the washing test A were changed to the conditions shown in Table 7, and alkali washing and pickling were performed. Further, the washing time is adjusted by the speed adjustment of the casting rolling and the length change of the washing tank. In the above washing, the alkali washing tank (52) is heated to 50 ° C by a heater in advance, and then the temperature is kept at 50 ° C by a heater, and the molten steel (S2 ) of 200 ° C is directly passed through the washing tank. (52) The power consumption of the heater passing through is reduced to one-half of that used to maintain 50C in advance. -40- (37) 1270423 Table 7 Alkali Washing Final Pickling Blackening Removal Rate Washing Solution Washing Time Washing Solution Washing Time % B-1 50〇C, 15 sec Room Temperature, 15 sec 95 B-2 pH13 Sodium hydroxide 30 sec pH l sulfuric acid 30 sec 100 [Washing test C] All the washing tanks of the washing unit (50), that is, the first pickling tank (51), the water washing tank (54), Alkaline washing tank (52), water washing "cleaning tank (5 5 ), final pickling tank (5 3 ), water washing tank (5 6 ) for casting and rolling material (S2) as shown in Table 8 The liquid was subjected to a first pickling, an alkali washing, and a pickling, and dried. Further, the washing time is adjusted by the speed adjustment of the casting rolling and the length change of the washing tank. Table 8 1st pickling alkali wash final pickling blackening removal rate % Washing conditions Washing liquid Washing time Washing conditions C-1 Room temperature, 50 ° C, lmin Room temperature, 100 C-2 pH1 nitric acid, pH 13 2min pH1 nitric acid, 100 1 min Washing sodium hydroxide for 1 min Washing [washing test D] -41 - (38) 1270423 Change the washing liquid and washing time of washing test C to the conditions shown in Table 9. The first pickling, the alkali washing, and the pickling are performed. Further, the washing time is adjusted by the speed adjustment of the casting and the length change of the washing tank. Table 9 1st pickling alkali wash final pickling blackening removal rate % washing liquid washing time washing liquid washing time washing liquid washing time D-1 room temperature, pH l sulfuric acid 15 sec 50 ° C, pH 13, Sodium argon 15 sec Room temperature, pH 1 sulfuric acid 15 sec 95 D-2 30 sec 30 sec 30 sec 100

[Washing Test E] The pickling tank (51), the water washing tank (54), the alkali washing tank (52), and the water washing tank (55) in the washing tank shown by the washing unit (50) are used. The cast rolled material (S 2 ) was subjected to pickling and caustic washing under the conditions shown in Table 1 and dried. Further, the washing time is adjusted by the speed adjustment of the casting rolling and the length change of the washing tank. -42 - (39) 1270423 Table 1 0 Alkali Washing Final Pickling Blackening Removal Rate Washing Solution Washing Time Washing Solution Washing Time % E-1 Room Temperature, lmin 50〇C, lmin 90 pHl Nitric Acid pH 13 Hydrogen Sodium oxide E-2 room temperature, lmin 50 〇C, 2 min 100 pHl nitric acid pH 13 sodium hydroxide [Comparative washing test] The cast rolled material (5 2 ) was subjected to a one-stage pickling under the conditions shown in Table 11. (washing with water after pickling), alkaline washing (washing with water after caustic washing). The washing system is immersed in the washing liquid, and the washing time is adjusted by the speed adjustment of the casting rolling and the length change of the washing tank. Table 1 1 Washing solution washing time blackening removal rate % Comparative Example 1 5 0〇C, PH13 sodium hydroxide 5 min 10 Comparative Example 2 Room temperature, PH1 nitric acid 5 min 10 Pairs of surface-washed cast-rolled rolled materials Observe the blackening of the surface with the naked eye' to determine its removal rate. The blackening removal rate is shown in the respective tables. -43- (40) 1270423 From the results of Tables 6 to 1, it is understood that the blackening of the surface of the cast rolled material can be removed by performing pickling or multi-stage washing. Further, the produced cast rolled material (S2) was taken up and re-rolled, and washed in successive stages with the washing tests A to E and the comparative washing, and the same washing and blackening was obtained. Further, the cast rolled material (S2) produced was cut short, and the test A to E and the comparative washing test were the same, and the immersion washing with the washing liquid was carried out to obtain the same washing blackening as the above-described continuous washing. Japanese Patent Application No. 2004-272664., filed on Sep. 21, 2004, and Japanese Patent Application No. 2005-129348, filed on August 31, 2005 Japanese Patent No. 233654, Japanese Patent Application No. 2005-233664, August 30, 2004, Shenli Application 60/605 1 67, and September 28, 2004 Priority claim 60/6 1 3228, which is part of a patent application for cost. The terms and expressions used herein are for illustrative purposes and are not to be used for the purpose of limiting the description, and are not intended to be equivalent to the features listed or stated herein. Various deformations within the scope. The manufacturing method of the metal material of the present invention is based on the continuous alkali washing of the inner coil, and then the net test is performed with the same net effect, and the net effect of the washing and testing batch method is removed, and the national patent is applied for the 27th application of the tiger, 2005. Year: May 2005 - the user of the US application for the application of the application for the application of the United States is used for the exclusion of the application, and the supply of lubricant for the rotary mold member is obtained when the prayer is allowed. -44- (41) 1270423 Optimized, it is suitable for continuous casting devices with various rotating mold members. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the configuration of a manufacturing apparatus (continuous casting apparatus) for carrying out the method for producing a metal material according to the present invention. Fig. 2 is an enlarged view of an important part of Fig. 1. | Fig. 3A is a spray range diagram of the stationary state. Fig. 3B is a spray range diagram of the moving state. Fig. 4A is a diagram showing the intermittent spray state of the moving state. Fig. 4B is another intermittent spray state diagram of the moving state. Fig. 5 is a schematic cross-sectional view of the nozzle and the plunger pump. Fig. 6 is a block diagram showing an example of the configuration of the lubricating oil spray control device. Fig. 7 is a schematic view showing a configuration of a manufacturing apparatus for a metal material having a rolled portion and a cleaning portion. I Fig. 8 is a cross-sectional view showing the process of rolling a cast material. [Description of Symbols of Main Components] 1: Continuous casting device (manufacturing device for metal materials) 2: Manufacturing device for metal materials 1 0: Prayer wheel (rotating mode member) 1 1 : Continuous belt (rotating mold member) 1 2 : Groove 12a: side portion -45- (42) 1270423 1 5 : Casting empty air 1 6, 17: squirting 40: rolling section < 5 0 : cleaning part 5 1 : first acid 汐 5 2 : alkali washing tank < 5 3 : final acid 矜 φ 54 , 55 , 56 : 5 7 : drying tank 熔 : molten metal S 1 : cast material < S 2 : Praying milk _ (lubricating oil spraying means) rolling System) Tank (washing tank) Washing tank) Tank (washing tank) Washing tank metal) Material (metal) -46-

Claims (1)

(1) 1270423 X. Patent application scope 1. A method for manufacturing a metal material, characterized in that: a plurality of rotary mold members are arranged oppositely around a casting space, and the rotary mold member is driven in a casting direction to continuously cast a metal material. At least a portion of the molten metal contact surface of the at least one rotating mold member is intermittently spray coated with lubricating oil. 2. The method of producing a metal material according to claim 1, wherein the plurality of rotary molding members are casting wheels having a groove on an outer side surface thereof and a continuous belt for closing the groove. 3 · A method of manufacturing a metal material according to item 2 of the patent application, wherein... V. Applying a lubricating oil to a groove of a casting wheel. 4. The method of producing a metal material according to the third aspect of the patent application, wherein only the side portion of the groove of the casting wheel is coated with lubricating oil. 5. A method of producing a metal material according to claim 2, wherein the continuous belt is coated with a lubricating oil. 6. The method of manufacturing a metal material according to claim 2 or 2, wherein the moving speed of the molten metal contact surface of the rotary molding member is V (mm/s), and the first spraying time is t (s), rotation When the distance in the casting direction of the range in which the spray is applied in the static state of the mold is Lp (mm) -47- (2) 1270423 The number of sprays (T) between 1 second is V / (Lp + Vxt) ~ 3V /(Lp + V xt ) times. 7. The method of producing a metal material according to claim 1 or 2, wherein the spraying of the lubricating oil is carried out using a plunger pump. 8. The method for producing a metal material according to claim 1 or 2, wherein the spraying time is 0.001 to 1 s. 9. If the metal material is manufactured according to the scope of claim 1 or 2, the spray amount is 0.011~1 m 1 . The manufacturing method of the metal material according to claim 1 or 2, wherein the total coating amount of the lubricating oil is 5 to 150 ml/h. 1 1 The method for producing a metal material according to claim 1, wherein the continuous rolling is followed by rolling to produce a cast rolled material, and the cast rutting material is subjected to a multi-stage washing including pickling or caustic washing. . The method for producing a metal material according to the first aspect of the invention, wherein the multi-stage cleaning system is carried out while moving the cast rolled material. 1 3 · A method for producing a metal material according to claim 12, S φ -48 - (3) 1270423 The above-described multi-stage cleaning is carried out after continuous casting and rolling. 14. The method of manufacturing a metal material according to claim 12, wherein the multi-stage cleaning is performed on other engineering stomachs after continuous casting and rolling. 1 5 · If the patent application scope is item 1 The method for producing a metal material, wherein φ the multi-stage cleaning is performed after the cutting of the cast rolled material is performed. 16. The method for producing a metal material according to claim 11, wherein the multi-stage washing includes at least one time Alkaline washing and at least one pickling. 1 7. The method for producing a metal material according to claim 16 of the patent application, - wherein the multi-stage washing is carried out in the order of caustic washing and pickling. The manufacturing method of the metal material of the fifteenth patent range, #中- the above-mentioned multi-stage cleaning is carried out in the order of pickling, caustic washing, pickling, etc. 19. The manufacturing method of the metal material as claimed in claim 11 The above-mentioned pickling washing liquid is one of g, nitric acid, sulfuric acid, and hydrochloric acid. The method for producing a metal material according to claim 11, wherein the alkali washing washing liquid is hydrogen hydroxide. Aqueous solution or potassium hydroxide water-soluble -49- (4) 1270423 liquid. 2 1. The method for producing a metal material according to the scope of claim 1 wherein the washing time of the pickling or caustic washing is carried out by using a cast rolled material. The time required for each cleaning tank is controlled. 22. The method for manufacturing a metal material according to the scope of claim 1 wherein: the cleaning tank passing time is the length of the washing tank using the moving direction of the cast rolled material 23. The method for manufacturing a metal material according to claim 21 or 22, wherein the front of the washing tank passes the time to make the continuous casting rolled material meander in the washing tank and with its meandering distance 24. The method for producing a metal material according to the scope of claim 1 wherein: • the water washing after the pickling or the alkali washing. 25. A manufacturing apparatus for a metal material, characterized in that The utility model has: a plurality of rotating mold members arranged to be oppositely arranged around the casting space, driven in a casting direction; and a lubricating oil spraying means for at least a part of the rotary molding members A part of the lubricant is sprayed intermittently. 26. The apparatus for manufacturing a metal material according to claim 25, further comprising: - disposed in the latter stage of the rotary mold member, for -50-(5) ( 5) 1270423 a rolling means for rolling a cast material; and a pickling tank or a contact alkali washing liquid which is disposed in the subsequent stage of the rolling means for contacting the rolled casting material with the pickling liquid a plurality of washing tanks for the alkali washing tank; and the washing tanks are arranged in series. 27. The apparatus for manufacturing a metal material according to claim 26, wherein the casting rolling material is contacted with the pickling liquid At least one pickling tank and at least one alkali washing tank contacting the alkali washing liquid. 28. A metal material characterized by being produced by the manufacturing method of claim 1 or 11. 29. A metal processing material characterized by: secondary processing of the gold, genus and material of the 28th patent application. 30. The metal working material according to item 29 of the patent application, wherein the secondary processing is one or more of plastic processing and cutting processing. -51 -