Apparatus for producing cast material

Abstract

To provide a device which is not a large-scale device and suppresses the occurrence of burrs.SOLUTION: A device 100 for manufacturing a cast material includes a casting rotor 1 in which a first groove 11A into which molten metal is poured is formed on a side 1S, and a forming rotor 2 arranged on a side of the casting rotor 1 so that a side surface covers a part of an opening of the first groove 11A. The first groove 11A is formed so as to surround the center line of rotation of the casting rotor 1. The center line C1 of the rotation of the casting rotor 1 and the center line C2 of the rotation of the forming rotor 2 are substantially parallel to each other and are arranged to be shifted from each other. The rotating body 2 for molding is rotated in the same direction as the rotating body 1 for casting.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an apparatus for manufacturing a casting material used in processing a metal wire rod. [Background technology]

[0002] Metal wire rods are generally produced by multi-stage rolling of a cast rod-shaped cast material into a thin wire. Conventionally, a method for producing such metal wire rods involves producing a cast material in a casting apparatus using the Properzi process or the like, and then successively rolling the cast material in a multi-stage rolling apparatus to obtain a wire rod. Patent Document 1 discloses an example of a casting apparatus using the Properzi process.

[0003] A casting apparatus using the Properti process, as described in Patent Document 1, for example, includes a casting ring with a groove formed on its outer periphery and an endless steel belt (hereinafter referred to as the "steel belt"). The steel belt is looped around the casting ring and a tensioning ring separate from the casting ring. The casting ring is rotated together with the steel belt, and the groove in the casting ring is covered from above with the steel belt, forming a casting mold between the steel belt and the groove. A fluid metal is poured into one end of this mold. The poured metal cools and solidifies from the casting ring and steel belt, becoming the casting material. This casting apparatus using the Properti process is a huge device equipped with a casting ring with a diameter of approximately 2000 mm, a tensioning ring positioned away from the casting ring, and a steel belt looped around them.

[0004] Casting equipment using the Properti process is designed for mass production. The equivalent circle diameter (diameter) of the cast material cast by this equipment is generally 60 mm or more, and the cross-sectional area of ​​the cast material is large. To roll such cast material into wire, a thinning process using, for example, about 15 stages of three-way rolling is required, but rolling at about 15 stages requires large-scale equipment including huge rolling mills. On the other hand, due to diversifying needs for metal wire, energy conservation, and inventory reduction, there has been a demand in recent years for improved cooling speed of wire, small-diameter wire, and small-lot, multi-product production.

[0005] Therefore, the present applicant filed a patent application for a casting material manufacturing apparatus and casting method that replaces the Properzi process (see Patent Document 2). The casting material manufacturing apparatus described in Patent Document 2 includes a chill roll and a first side member and a second side member disposed on either side of the chill roll. A fluid metal is poured into a pouring area formed by the outer peripheral surface of the chill roll and the first and second side members, and the metal moves along the direction of rotation of the chill roll. This manufacturing apparatus is a small device, not a large-scale casting apparatus using the Properzi process. This manufacturing apparatus can produce casting materials with small cross sections.

[0006] Furthermore, Patent Document 3 describes an apparatus and method that can produce casting materials with small cross sections, using an apparatus and method different from those described in Patent Document 2. In the apparatus and method described in Patent Document 3, an endless grooved ring mold with an open top rotates horizontally. Molten metal poured into the groove is cast while rotating horizontally. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Publication No. 55-57360 [Patent Document 2] Japanese Patent Application Publication No. 2019-136743 [Patent Document 3] Japanese Patent Application Publication No. 4-258348 Summary of the Invention [Problem to be solved by the invention]

[0008] In the device and method described in Patent Document 3, the molten metal is cast in a state where the upper part of the groove is open, so the upper surface (free solidification surface) of the molten metal is not flat.

[0009] In this regard, Patent Document 2 describes a method in which a forming roll is used in the above-mentioned device to form the upper surface of solidified or semi-solidified metal (paragraphs

[0085] and

[0086] , and Figure 11 of Patent Document 2). While this method can make the upper surface of the metal substantially flat or close to substantially flat, there is a risk that the semi-solidified metal will be extruded from both sides of the outer circumferential surface of the chill roll, resulting in the generation of burrs, depending on the degree of pressure applied to the upper surface of the metal by the forming roll and the solidification state of the metal at the time of pressing.

[0010] SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus that is not as large-scale as a casting apparatus using the Properti method and that can suppress the occurrence of burrs in a casting material. [Means for solving the problem]

[0011] The casting material manufacturing apparatus disclosed in this specification comprises a casting rotor having a groove formed on its side into which molten metal is poured, and a molding rotor arranged to the side of the casting rotor so that its side covers part of the opening of the groove, the groove being formed to surround the center line of rotation of the casting rotor, the center line of rotation of the casting rotor and the center line of rotation of the molding rotor being approximately parallel to each other but offset from each other, and the molding rotor rotating in the same direction as the casting rotor.

[0012] According to the above configuration, the groove formed on the side surface of the casting rotor serves as a casting mold. In the portion of the groove where the opening is covered by the side surface of the molding rotor, an area is formed that is surrounded by the casting rotor and the molding rotor. This area exists for a certain length so as to surround the centerline of rotation of the casting rotor. The molten metal poured into the groove passes through this area along the rotation direction of the casting rotor, and cools and solidifies while surrounded by the casting rotor and the molding rotor. At this time, the molding rotor does not press against the molten metal passing through the groove. This prevents burrs from occurring.

[0013] Furthermore, while the casting wheel used in the casting machine using the Properti process is large, with a diameter of approximately 2000 mm, the casting rotor used in the machine does not need to be approximately 2000 mm in diameter and can be, for example, a small casting rotor with a diameter of one-third or less. Even with such a small casting rotor, the generation of burrs can be suppressed. In addition, a casting apparatus using the Properti process includes a large casting wheel with a diameter of approximately 2000 mm, a tension wheel positioned away from the casting wheel, and a steel belt wound around the casting wheel and tension wheel. This requires a large installation space. In the above manufacturing apparatus, the forming rotor is positioned to the side of the casting rotor so that the side of the casting rotor faces the side of the forming rotor, making the apparatus compact and eliminating the need for a large installation space.

[0014] Furthermore, by rotating not only the casting rotor but also the molding rotor in the same direction as the casting rotor, it is possible to continuously cast the casting material.

[0015] In the above-described apparatus, the center line of rotation of the casting rotor and the center line of rotation of the molding rotor are both horizontal.

[0016] In this case, since the casting rotor and the molding rotor are arranged vertically, the installation space of the device can be reduced.

[0017] Furthermore, in the above-described device, when viewed from the side, the peripheral speed of the molding rotor at the intersection of an imaginary line extending from the center of rotation of the casting rotor toward the center of rotation of the molding rotor and the groove may be equal to or greater than the peripheral speed of the casting rotor in the groove.

[0018] By rotating the casting rotor and the molding rotor so as to satisfy the above, adhesion and friction between the casting material and the molding rotor are reduced.

[0019] In addition, the above-mentioned device may further include an injection section for injecting molten metal into the groove, and the injection section may be positioned so that, when viewed from the side, the groove on the side of the casting rotor rotating from upstream to downstream overlaps with the tip of the injection section, thereby allowing the molten metal to be injected into the groove.

[0020] In the apparatus described in Patent Document 2, molten metal is poured onto the outer peripheral surface of a chill roll and cast with the top surface of the molten metal open. In this apparatus, the molten metal flows from the pouring position along the outer peripheral surface of the chill roll to a higher position upstream than the pouring position, passes over the highest apex of the chill roll, and flows downstream after the top surface has solidified or semi-solidified. On the other hand, with the above-described configuration, the molten metal poured into the groove flows downstream from the pouring position through the groove. Even if the molten metal flows from the pouring position to a lower position downstream, the wall of the casting rotor is present below the molten metal passing through the groove, so the molten metal does not splash out of the groove.

[0021] In the above-described device, a plurality of the grooves may be formed on the side surface of the casting rotor, and all of the plurality of grooves may be formed so as to surround the center line of rotation of the casting rotor.

[0022] By pouring molten metal into multiple grooves, multiple casting materials can be produced simultaneously or at one time. Furthermore, if the multiple grooves have different dimensions, shapes, cross sections, etc., the casting rotor can be used to produce multiple casting materials with different cross-sectional areas and shapes simultaneously or at one time.

[0023] In the above-described apparatus, the casting rotor and the molding rotor may both be disk-shaped, and the diameter of the molding rotor may be smaller than the diameter of the casting rotor.

[0024] The casting material manufacturing device having the above configuration is easy to design. [Effects of the Invention]

[0025] It is possible to provide an apparatus that can suppress the occurrence of burrs in a casting material, without using a large-scale apparatus such as a casting apparatus using the Properti method. [Brief explanation of the drawings]

[0026] [Figure 1] 1 is a side view of a casting material manufacturing apparatus according to an embodiment of the present invention. [Figure 2] FIG. 2 is a view of the casting material manufacturing apparatus shown in FIG. 1, viewed from the direction II. [Figure 3] 3 is a cross-sectional view of the casting rotor shown in FIG. 1 taken along line III-III. [Figure 4] 4 is a cross-sectional view taken along line IV-IV of the casting material manufacturing apparatus shown in FIG. 1. [Figure 5] 1 shows photographs of the cross section and the surface of the casting material produced in the experiment. [Figure 6] 1 is a photograph of the surface of the casting material produced in the experiment. [Figure 7] FIG. 10 is a side view of a modified example of a casting material manufacturing apparatus. DETAILED DESCRIPTION OF THE INVENTION

[0027] Preferred embodiments of the present invention will now be described.

[0028] The casting material manufacturing apparatus according to this embodiment is an apparatus for manufacturing a casting material to be used in processing a metal wire. FIGS. 1 to 4 show an example of the casting material manufacturing apparatus and an example of the arrangement of this apparatus. FIGS. 1 and 2 show the state in which a casting material is being manufactured using the casting material manufacturing apparatus 100. Hereinafter, the casting material manufacturing apparatus may be simply referred to as the "manufacturing apparatus."

[0029] [Casting material manufacturing equipment] As shown in Fig. 1, the manufacturing apparatus 100 includes a casting rotor 1, a molding rotor 2, and a pouring section 3. The molding rotor 2 and the pouring section 3 are arranged to the sides of the casting rotor 1. Fig. 2 is a view of the manufacturing apparatus 100 shown in Fig. 1 as seen from the direction II. In Figs. 1 and 2, the up, down, and vertical directions are directions when a cast material is being produced in the exemplary arrangement of the manufacturing apparatus 100 shown in Figs. 1 and 2.

[0030] [Casting rotor] 1 and 2, the casting rotor 1 is illustrated as a disk-shaped rotor of uniform thickness. However, as will be described later, the casting rotor 1 does not have to have a uniform thickness. The casting rotor 1 does not have to be disk-shaped or plate-shaped.

[0031] The casting rotor 1 rotates around a center line C1 of rotation shown in Figures 1 and 2. Figures 1 and 2 show an example in which the center line C1 of rotation is horizontal. The casting rotor 1 has a rotation axis 11 that extends in the direction of the rotation center line C1. The rotation axis 11 is disposed on the opposite side of the molding rotor 2. Note that the casting rotor 1 does not necessarily have to have a rotation axis 11.

[0032] The center of rotation of the rotary shaft 11 or the casting rotor 1 is connected to a drive device such as a motor. The drive device can adjust the rotation speed (number of rotations) of the casting rotor 1 and the peripheral speed (described later).

[0033] As shown in FIG. 1, the casting rotor 1 has a side surface 1S. In this embodiment, the "side surface" of the casting rotor 1 is a surface through the center of the rotation center line C1 of the casting rotor 1 and a surface that intersects with the rotation center line C1 of the casting rotor 1. The "side surface" of the casting rotor 1 may be, for example, a surface that is perpendicular to the rotation center line C1 of the casting rotor 1, or a surface that has a portion that is inclined with respect to the rotation center line C1 of the casting rotor 1. FIGS. 1 and 2 show a case where the side surface 1S of the casting rotor 1 is perpendicular to the rotation center line C1 of the casting rotor 1. Also, FIGS. 1 and 2 show a case where the side surface 1S of the casting rotor 1 is arranged along the up-down direction (vertical direction).

[0034] As shown in FIG. 1, the manufacturing apparatus (100) viewed from a direction perpendicular or nearly perpendicular to the side surface 1S of the casting rotor 1 and the side surface of the molding rotor 2 is referred to as a "side view of the manufacturing apparatus (100)" or simply as a "side view."

[0035] A first groove 11A and a second groove 11B are formed on a side surface 1S of the casting rotor 1. The first groove 11A and the second groove 11B form a casting mold.

[0036] The first groove 11A and the second groove 11B are formed to surround the center line C1 of rotation of the casting rotor 1. FIG. 1 illustrates a case where the first groove 11A and the second groove 11B are annular with the center line C1 of rotation as the center. The diameter of the first groove 11A is larger than the diameter of the second groove 11B. The first groove 11A is formed outward of the second groove 11B.

[0037] The depth and width (opening width, bottom width) of the first groove 11A may be the same at all positions surrounding the rotation center line C1, or may not be the same at all positions. In a cross-sectional view passing through the rotation center line C1 of the casting rotor 1, the shape, dimensions, area, etc. of the first groove 11A may be the same in all cross-sectional views, or may differ depending on the cross-sectional view.

[0038] The same applies to the second grooves 11B. The depth and width (opening width, bottom width) of the second grooves 11B may be the same at all positions surrounding the rotation center line C2, or may not be the same at all positions. In a cross-sectional view passing through the rotation center line C2 of the forming rotor 2, the shape, dimensions, area, etc. of the second grooves 11B may be the same in all cross-sectional views, or may differ depending on the cross-sectional view.

[0039] The depth and width (opening width, bottom width) of the first groove 11A may be the same as or different from the depth and width (opening width, bottom width) of the second groove 11B. In addition, in a cross-sectional view passing through the center line C1 of rotation of the casting rotor 1, the shape, dimensions, area, etc. of the first groove 11A may be the same as or different from the shape, dimensions, area, etc. of the second groove 11B.

[0040] Fig. 3 shows a cross-sectional view of the casting rotor 1 shown in Fig. 1 taken along line III-III. The cross-sectional view of line III-III is a cross-sectional view of the radius of the casting rotor 1 passing through the center line C1 of rotation of the casting rotor 1. Fig. 3 shows, as an example, an example in which the first grooves 11A and the second grooves 11B are trapezoidal.

[0041] 3, the first groove 11A is a trapezoid with an opening width (W1) larger than its bottom width (w1). The second groove 11B is a trapezoid with an opening width (W2) larger than its bottom width (w2). When the first groove 11A and the second groove 11B are trapezoids with such large openings, it is easy to remove the casting material from the first groove 11A and the second groove 11B.

[0042] In the cross-sectional view shown in Figure 3, the shape, dimensions, area, etc. of the first groove 11A are different from the shape, dimensions, area, etc. of the second groove 11B. The width W1 of the opening of the first groove 11A is larger than the width W2 of the opening of the second groove 11B. The width w1 of the bottom of the first groove 11A is larger than the width w2 of the bottom of the second groove 11B. The depth d1 of the first groove 11A and the depth d2 of the second groove 11B are the same.

[0043] In a cross-sectional view passing through the center line C1 of rotation of the casting rotor 1, the first groove 11A and the second groove 11B may have a shape other than a trapezoid, such as a square or a rectangle. In a cross-sectional view passing through the center line C1 of rotation of the casting rotor 1, the shape, dimensions, area, etc. of the first groove 11A may be the same as the shape, dimensions, area, etc. of the second groove 11B. The first groove 11A and the second groove 11B may have the same shape, dimensions, and area in all cross-sectional views passing through the center line C1 of rotation of the casting rotor 1, or may have different shapes, dimensions, areas, etc. depending on the cross-sectional view passing through the center line C1 of rotation of the casting rotor 1.

[0044] There is no particular limitation on the size of the casting rotor 1. An example of the dimensions of the casting rotor 1 will be described below, comparing it with a casting wheel used in a conventional casting apparatus using the Properti method.

[0045] The casting wheel used in conventional casting machines using the Properti process is a large rotating body with a diameter of approximately 2000 mm and a thickness of approximately 100 mm. The equivalent diameter of the cast material cast by this machine is generally 60 mm or more, and the cross-sectional area of ​​the cast material is large.

[0046] In contrast, the casting rotor 1 of this embodiment is a small casting rotor, for example, with a diameter of approximately 600 mm and a thickness of approximately 20 mm. In this case, the first groove 11A shown in FIG. 3 can be, for example, a groove with an opening width W1 of approximately 10 mm, a groove bottom width w1 of 7.3 mm, and a depth d1 of approximately 7 mm. The casting material produced using the first groove 11A has an equivalent circle diameter (diameter) of approximately 4 to 5 mm, which is less than 1 / 10 of the diameter of the casting material produced using a conventional casting apparatus using the Properti process. Furthermore, as shown in FIG. 3, when the second groove 11B is made smaller than the first groove 11A, the second groove 11B can be, for example, a groove with an opening width W2 of approximately 8 mm, a bottom width w2 of 5.5 mm, and a depth d2 of approximately 7 mm. Using the second groove 11B, casting materials with even smaller cross-sectional areas can be produced.

[0047] The size and thickness of the casting rotor 1 are not limited to those described above. For example, the diameter of the casting rotor 1 may be larger or smaller than those in the above example. The thickness of the casting rotor 1 may be thicker or thinner than those in the above example. Furthermore, the thickness of the casting rotor 1 does not have to be constant. The casting rotor 1 does not have to be disk-shaped or plate-shaped. Furthermore, the dimensions of the first groove 11A and the second groove 11B are not limited to those described above.

[0048] The casting rotor 1 cools the molten metal flowing through the first groove 11A or the second groove 11B. Therefore, the casting rotor 1 may be used in a cooled state using a cooling device, a cooling tool, cooling water, or the like. The material of the casting rotor 1 is not particularly limited. The casting rotor 1 may be made of, for example, an aluminum alloy, or may be made of copper or a copper alloy, which have high cooling efficiency.

[0049] [Rotating body for molding] 1 and 2 show an example in which the molding rotator 2 is a disk-shaped rotator of uniform thickness. However, as will be described later, the molding rotator 2 does not have to have a uniform thickness. The molding rotator 2 does not have to be disk-shaped or plate-shaped.

[0050] The molding rotor 2 rotates around the center line of rotation C2 shown in Figures 1 and 2. Figures 1 and 2 show an example in which the center line of rotation C2 is horizontal. The molding rotor 2 has a rotation axis 21 that extends in the direction of the rotation center line C2. The rotation axis 21 is disposed on the opposite side of the casting rotor 1. Note that the molding rotor 2 does not necessarily have to have the rotation axis 21. The molding rotor 2 can rotate in the same direction as the casting rotor 1.

[0051] As shown in Fig. 2, the center line C2 of rotation of the molding rotor 2 is substantially parallel to the center line C1 of rotation of the casting rotor 1. Here, "substantially parallel" means not only perfect parallelism but also allowing for a tilt of several degrees.

[0052] As shown in Figures 1 and 2, the center line C1 of rotation of the casting rotator 1 and the center line C2 of the molding rotator 2 are misaligned. Here, "the center line C1 of rotation of the casting rotator 1 and the center line C2 of the molding rotator 2 are misaligned" means that the center line C1 of rotation of the casting rotator 1 or its extension does not substantially coincide with the center line C2 of rotation of the molding rotator 2 or its extension. Here, "substantially coincident" refers not only to cases where the center line C1 of rotation of the casting rotator 1 or its extension and the center line C2 of rotation of the molding rotator 2 or its extension completely coincide with each other, but also to cases where they are slightly separated from each other and where they intersect at an angle of several degrees.

[0053] 1 and 2 show, as an example, a case in which the center line C1 of rotation of the casting rotor 1 and the center line C2 of rotation of the molding rotor 2 are both substantially parallel to the horizontal direction but are offset from each other. Note that as long as the center lines C1 and C2 are substantially parallel, they do not have to be horizontal. For example, the center lines C1 and C2 may be inclined relative to the horizontal direction or may be vertical.

[0054] The center of rotation of the rotary shaft 21 or the molding rotor 2 is connected to a drive device such as a motor. The drive device or the like can adjust the rotation speed (number of rotations) of the molding rotor 2 and the peripheral speed, which will be described later.

[0055] As shown in Figures 1 and 2, the molding rotor 2 is arranged to the side of the casting rotor 1. As shown in Figures 1 and 2, the molding rotor 2 is arranged next to the side surface 1S of the casting rotor 1 so that its side surface 2S faces the side surface 1S of the casting rotor 1.

[0056] The "side surface" of the molding rotator 2, like the "side surface" of the casting rotator 1, is a surface of the molding rotator 2 through the center of the center line C2 of rotation of the molding rotator 2 and a surface that intersects with the center line C2 of rotation of the molding rotator 2. The "side surface" of the molding rotator 2 may be, for example, a surface that is perpendicular to the center line C2 of rotation of the molding rotator 2, or a surface that has a portion that is inclined with respect to the center line C2 of rotation of the molding rotator 2. FIGS. 1 and 2 show a case where the side surface 2S of the molding rotator 2 is perpendicular to the center line C2 of rotation of the molding rotator 2. Also, FIGS. 1 and 2 show a case where the side surface 2S of the molding rotator 2 is arranged along the up-down direction (vertical direction).

[0057] As shown in Fig. 2, the side surface 2S of the forming rotor 2 and the side surface 1S of the casting rotor 1 are in contact or nearly in contact. In Fig. 2, there is no gap between the side surface 2S of the forming rotor 2 and the side surface 1S of the casting rotor 1, but there may be a small gap between them that prevents molten metal from flowing in. In other words, it is sufficient that the molten metal does not flow into the gap.

[0058] 1 and 2, the molding rotor 2 is disposed laterally of the casting rotor 1 so that the side surface 2S covers part of the opening of the first groove 11A and part of the opening of the second groove 11B of the casting rotor 1. In this specification, "the side surface 2S covers part of the opening of the first groove 11A of the casting rotor 1" means not only the case where the side surface 2S covers part of the opening of the first groove 11A of the casting rotor 1 when the side surface 1S of the casting rotor 1 and the opposing side surface 2S of the molding rotor 2 are in contact with each other, as shown in Fig. 2, but also includes the case where the side surface 2S of the molding rotor 2 faces the opening of the first groove 11A when there is a small gap between the side surface 1S of the casting rotor 1 and the opposing side surface 2S of the molding rotor 2 through which molten metal does not flow. The same applies to the statement that "the side surface 2S covers a part of the opening of the second groove 11B of the casting rotor 1."

[0059] FIG. 4 shows a cross-sectional view taken along line IV-IV in FIG. 1. The cross-sectional view along line IV-IV is a cross-sectional view of a portion of the manufacturing apparatus 100 where the side surface 2S of the molding rotor 2 covers the openings of the first groove 11A and the second groove 11B. Because the side surface 2S of the molding rotor 2 covers part of the opening of the first groove 11A, part of the first groove 11A, i.e., part of the mold, becomes an area surrounded by the casting rotor 1 and the molding rotor 2. This area has a certain length and surrounds the center line C1 of rotation of the casting rotor 1, as shown in FIG. 1. The molten metal poured into the first groove 11A passes through this area.

[0060] The same is true for the second groove 11B. In FIG. 4, the side surface 2S of the forming rotor 2 covers the opening of the second groove 11B but does not penetrate into the second groove 11B. Because the side surface 2S of the forming rotor 2 covers part of the opening of the second groove 11B, part of the second groove 11B, i.e., part of the mold, becomes an area surrounded by the casting rotor 1 and the forming rotor 2. This area exists for a certain length so as to surround the center line C1 of rotation of the casting rotor 1, as shown in FIG. 1. The molten metal poured into the second groove 11B passes through this area.

[0061] The side surface 2S of the forming rotor 2 is larger than the width of the opening of the first groove 11A and the width of the opening of the second groove 11B, and does not extend into the first groove 11A or the second groove 11B.

[0062] There is no particular limitation on the size of the molding rotator 2. An example of each dimension of the molding rotator 2 will be described below.

[0063] The molding rotator 2 of this embodiment is a small molding rotator, for example, with a diameter of approximately 400 mm and a thickness of approximately 10 mm. While the molding rotator 2 shown in FIG. 1 is smaller than the casting rotator 1, the molding rotator 2 may be larger than the casting rotator 1 or may be the same size as the casting rotator 1. Because the center line C2 of rotation of the molding rotator 2 is offset from the center line C1 of rotation of the casting rotator 1, the molding rotator 2 can be positioned so that the side surface 2S of the molding rotator 2 covers a portion of the opening of the first groove 11A and a portion of the opening of the second groove 11B, regardless of the sizes of the casting rotator 1 and the molding rotator 2.

[0064] The size and thickness of the molding rotator 2 are not limited to those described above. For example, the diameter of the molding rotator 2 may be larger or smaller than those in the above example. The thickness of the molding rotator 2 may be thicker or thinner than those in the above example. Furthermore, the thickness of the molding rotator 2 does not have to be constant. The molding rotator 2 does not have to be disk-shaped or plate-shaped.

[0065] In the areas where the molding rotor 2 covers part of the opening of the first groove 11A and part of the opening of the second groove 11B, the molten metal is cooled not only by the casting rotor 1 but also by the molding rotor 2. Therefore, the molding rotor 2 may be used in a cooled state using a cooling device, a cooling tool, cooling water, or the like. The material of the molding rotor 2 is not particularly limited. The casting rotor 1 may be made of, for example, an aluminum alloy, or may be made of copper or a copper alloy, which have high cooling efficiency.

[0066] [Injection part] The injection part 3 is a member that injects molten metal (including semi-molten metal) into the first groove 11A or the second groove 11B, and is disposed in the groove or near the opening of the groove. In Fig. 1, a gutter is shown as an example of the injection part 3.

[0067] 1 and 2, for example, molten metal may be poured from a crucible 4 into a tundish 31, then poured from the tundish 31 into a pouring section 3 (gutter) via a nozzle 32, and then poured from the pouring section 3 (gutter) into the first groove 11A or the second groove 11B. The pouring section 3 (gutter) is disposed below the nozzle 32.

[0068] As shown in Figures 1 and 2, when the center line C1 of the casting rotor 1 and the center line C2 of the molding rotor 2 are horizontal and the side surface 1S of the casting rotor 1 is arranged vertically, the first groove 11A and the second groove 11B do not open upward. In this case, it is difficult to inject molten metal into the first groove 11A and the second groove 11B from the opening at the bottom end of the nozzle 32, which is long in the vertical direction. Therefore, as shown in Figures 1 and 2, a casting section 3 (gutter) can be arranged below the nozzle 32, and the molten metal can be injected from the nozzle 32 into the casting section 3 (gutter), and then from the casting section 3 (gutter) into the first groove 11A or the second groove 11B.

[0069] When producing a casting material using the first groove 11A, the tip of the injection part 3 (gutter) is positioned in the first groove 11A or near the opening of the first groove 11A (see FIGS. 1 and 2). When producing a casting material using the second groove 11B, the tip of the injection part 3 (gutter) is positioned in the second groove 11B or near the opening of the second groove 11B.

[0070] Even when the center line of rotation C1 of the casting rotor 1 and the center line of rotation C2 of the molding rotor 2 are inclined relative to the horizontal direction and the openings of the first groove 11A and the second groove 11B face diagonally downward relative to the horizontal direction, molten metal may be injected into the first groove 11A and the second groove 11B using the injection section 3 (gutter) as described above.

[0071] The method of injecting molten metal into first groove 11A and second groove 11B and the member constituting the injection part may be changed depending on the orientation of the opening of first groove 11A and the orientation of the opening of second groove 11B. For example, by changing the shape of nozzle 32, molten metal may be injected directly into first groove 11A or second groove 11B from nozzle 32. In this case, nozzle 32 is the injection part.

[0072] [Position of injection section and position of molding rotor] The casting rotator 1 and the molding rotator 2 rotate in the same direction. For example, as shown in Figures 1 and 2, if the center line of rotation C1 of the casting rotator 1 and the center line of rotation C2 of the molding rotator 2 are horizontal and the side surface 1S of the casting rotator 1 is arranged along the vertical direction, when the casting rotator 1 rotates counterclockwise in the side view shown in Figure 1, the molding rotator 2 also rotates counterclockwise in the side view shown in Figure 1. When the casting rotator 1 rotates clockwise in the side view shown in Figure 1, the molding rotator 2 also rotates clockwise in the side view shown in Figure 1. An example of the position of the injection part 3 in the case shown in FIGS. 1 and 2 will be described below.

[0073] (Position of injection site) In the side view shown in Figure 1, the vertical line lc is a line passing through the center line C1 of rotation of the casting rotor 1. When the casting rotor 1 rotates counterclockwise in the figure, the "portion X on the left side" of the casting rotor 1 in the figure with respect to the vertical line lc rotates from upstream to downstream. In other words, the "portion passing through the region on the left side" of the casting rotor 1 in the figure with respect to the vertical line lc rotates from upstream to downstream. Here, "rotating from upstream to downstream" means rotating from a higher position to a lower position.

[0074] On the other hand, in the casting rotor 1, the "right-hand portion Y" in the figure rotates counterclockwise from downstream to upstream with respect to the vertical line lc. In other words, in the casting rotor 1, the "portion passing through the right-hand region" in the figure rotates counterclockwise from downstream to upstream with respect to the vertical line lc. Here, "rotating from downstream to upstream" means rotating from a lower position to a higher position.

[0075] 1 shows an example in which, when molten metal is poured into the first groove 11A, the tip of the pouring part 3 is positioned near the opening of the first groove 11A or in the "left part X" of the casting rotor 1 that rotates from upstream to downstream. In this case, the pouring part 3 is positioned so that the tip of the pouring part 3 overlaps with the first groove 11A in the "left part X" of the casting rotor 1 in the side view shown in FIG.

[0076] Similarly, when injecting molten metal into second groove 11B, the tip of injection part 3 may be positioned in second groove 11B or near the opening of second groove 11B in "left part X" that rotates from upstream to downstream on casting rotor 1. In this case, injection part 3 is positioned so that the tip of injection part 3 overlaps with second groove 11B in "left part X" of casting rotor 1 in the side view shown in FIG.

[0077] In the above case, the molten metal poured into the first groove 11A or the second groove 11B flows from the pouring position through the first groove 11A or the second groove 11B to a position downstream lower than the pouring position. At this time, the wall of the casting rotor 1 is present below the molten metal passing through the first groove 11A or the second groove 11B, so the molten metal does not splash out of the first groove 11A or the second groove 11B.

[0078] In the above description, the center line C1 of rotation of the casting rotor 1 and the center line C2 of rotation of the molding rotor 2 are horizontal, and the side surface 1S of the casting rotor 1 is arranged along the vertical direction. However, in other cases, for example, when the manufacturing apparatus 100 is arranged so that the center line C1 of rotation of the casting rotor 1 is inclined with respect to the horizontal direction and the first groove 11A and the second groove 11B open obliquely upward with respect to the horizontal direction, the above-mentioned effect can be obtained by arranging the casting rotor 3 so that the tip of the casting rotor 3 overlaps with the first groove 11A or the second groove 11B of the portion of the casting rotor 1 that rotates from upstream to downstream.

[0079] (Position of the forming rotor) When molten metal is injected into the first groove 11A, if the injection section 3 is positioned at the above-mentioned position, the molding rotor 2 may be positioned in the first groove 11A of the "left side section X" rotating from upstream to downstream of the casting rotor 1, as shown in Figure 1, so as to cover at least the area from just below or below the injection section 3 into which the molten metal is injected to the lowest bottom of the first groove 11A.

[0080] The same applies to second groove 11B. When molten metal is poured into second groove 11B and pouring section 3 is located at the above-mentioned position, molding rotor 2 may be located in second groove 11B in "left section X" that rotates from upstream to downstream of casting rotor 1, as shown in Fig. 1, so as to cover at least the area from just below pouring section 3 into which molten metal is poured or below that area to the lowest bottom of second groove 11B.

[0081] When the forming rotor 2 is disposed at the above position, the opening of the first groove 11A or the opening of the second groove 11B is covered by the forming rotor 2 in the region downstream of the molten metal pouring portion of the first groove 11A or the second groove 11B. In this case, when the molten metal flows downstream from the pouring portion 3 through the first groove 11A or the second groove 11B, the region through which the molten metal passes is surrounded by the casting rotor 1 and the forming rotor 2, so that the molten metal is reliably prevented from splashing outside the first groove 11A or the second groove 11B.

[0082] Furthermore, even if the manufacturing apparatus 100 is positioned so that the center line C1 of rotation of the casting rotor 1 is inclined relative to the horizontal direction and the first groove 11A and the second groove 11B open diagonally downward relative to the horizontal direction, if the molding rotor 2 is positioned in the above position, when the molten metal flows downstream from the injection section 3, the wall of the casting rotor 1 or the molding rotor 2 is present below the molten metal, so the molten metal does not splash outside the first groove 11A or the second groove 11B.

[0083] Furthermore, when the molding rotor 2 is positioned at the above-mentioned position, the molten metal can be passed through the area surrounded by the casting rotor 1 and the molding rotor 2 immediately after being poured into the first groove 11A or the second groove 11B.

[0084] In addition to the above, the molding rotor 2 may also be arranged to cover a portion of the first groove 11A or a portion of the second groove 11B in the "right-hand portion X" rotating from downstream to upstream of the casting rotor 1 shown in Figure 1.

[0085] The above describes the "position of the injection section" and the "position of the molding rotor" when the casting rotor 1 and the molding rotor 2 rotate counterclockwise in the side view shown in Figure 1. However, when the casting rotor 1 and the molding rotor 2 rotate clockwise in the figure, the left and right positions are reversed.

[0086] There is no particular limitation on the proportion of the openings of the first grooves 11A that are covered by the side surface 2S of the molding rotor 2. The proportion of the openings of the first grooves 11A that are covered by the side surface 2S of the molding rotor 2 may be determined based on, for example, the diameter, width, and depth of the first grooves 11A, the area of ​​the first grooves 11A in the cross-sectional view shown in Fig. 3, the peripheral speed of the casting rotor 1, and the latent heat of solidification of the casting material.

[0087] Furthermore, there are no particular limitations on the proportion of the openings of the second grooves 11B that are covered by the side surface 2S of the molding rotor 2. The proportion of the openings of the second grooves 11B that are covered by the side surface 2S of the molding rotor 2 may be determined based on, for example, the diameter, width, and depth of the second grooves 11B, the area of ​​the second grooves 11B in the cross-sectional view shown in Fig. 3, the peripheral speed of the casting rotor 1, the latent heat of solidification of the casting material, and the like.

[0088] [Casting material manufacturing method] An example of a method for producing a casting material using the production apparatus 100 will be described.

[0089] The casting rotor 1 and the molding rotor 2 shown in Fig. 1 are rotated in the same direction. For example, as shown in Fig. 1, the casting rotor 1 and the molding rotor 2 are rotated counterclockwise in Fig. 1.

[0090] When producing a casting material using the first groove 11A, as shown in Figure 1, the tip of the injection part 3 is positioned in the first groove 11A or near the opening of the first groove 11A, at a higher position than the molding rotor 2, in the "left part X" in Figure 1.

[0091] Molten metal is poured into the first groove 11A from the pouring section 3. The molten metal passes through the first groove 11A in the rotational direction of the casting rotor 1. The molten metal is cooled by the casting rotor 1. In the area where the opening of the first groove 11A is covered by the molding rotor 2, the molten metal is cooled by the casting rotor 1 and the molding rotor 2, and solidification progresses from the periphery. The casting material is then removed from the first groove 11A.

[0092] The same applies when pouring molten metal into the second groove 11B. The tip of the pouring section 3 (gutter) is positioned in the "left part X" in Figure 1, higher than the forming rotor 2, near the second groove 11B or the opening of the second groove 11B.

[0093] Molten metal is poured into the second groove 11B from the pouring section 3. The molten metal passes through the second groove 11B in the rotational direction of the casting rotor 1. The molten metal is cooled by the casting rotor 1. In the area where the opening of the second groove 11B is covered by the forming rotor 2, the molten metal is cooled by the casting rotor 1 and the forming rotor 2, and solidification progresses from the periphery. The casting material is then removed from the second groove 11B.

[0094] The production of casting material in the first groove 11A and the production of casting material in the second groove 11B may be carried out simultaneously or at the same time, or casting material may be produced in one groove while casting material is not being produced in the other groove.

[0095] There are no particular limitations on the rotation speed of the casting rotor 1 and the molding rotor 2. For example, the following may be adopted.

[0096] (1) When producing a cast material in the first groove 11A, in a side view of the production apparatus 100 shown in Fig. 1, the peripheral speed V2 of the molding rotor 2 at the intersection P1 between the first groove 11A and an imaginary line 11 extending from the rotation center of the casting rotor 1 toward the rotation center of the molding rotor 2 is preferably within ±20% of the peripheral speed V1 of the casting rotor 1 in the first groove 11A. In other words, the peripheral speed V2 of the molding rotor 2 is preferably not less than 0.8 times the peripheral speed V1 and not more than 1.2 times the peripheral speed V1.

[0097] Furthermore, the peripheral speed V2 of the molding rotor 2 at the intersection P1 is preferably equal to or greater than the peripheral speed V1 of the casting rotor 1 in the first groove 11A, and is even more preferably faster than the peripheral speed V1. In this case, adhesion and friction between the casting material and the molding rotor 2 are small. It is more preferable that the peripheral speed V2 is equal to or greater than the peripheral speed V1 and is within 20% of the peripheral speed V1 (equal to or less than the peripheral speed V1×1.2).

[0098] In the side view of the manufacturing apparatus 100 shown in Fig. 1, the intersection point P1 is the part where the peripheral speed is the slowest among the parts covering the openings of the first grooves 11A of the molding rotor 2. In the parts covering the openings of the first grooves 11A of the molding rotor 2, the peripheral speed of the parts other than the intersection point P1 is faster than the peripheral speed V2 at the intersection point P1. By ensuring that the peripheral speed V2 at the intersection point P1, where the peripheral speed is the slowest among the parts covering the openings of the first grooves 11A of the molding rotor 2, satisfies the above, the above effect can be reliably obtained.

[0099] (2) When producing a cast material in the second groove 11B, in a side view of the production apparatus 100 shown in Fig. 1, the peripheral speed V12 of the molding rotor 2 at the intersection P2 between the second groove 11B and an imaginary line 11 extending from the rotation center of the casting rotor 1 toward the rotation center of the molding rotor 2 is preferably within ±20% of the peripheral speed V11 of the casting rotor 1 in the second groove 11B. In other words, the peripheral speed V12 of the molding rotor 2 is preferably not less than 0.8 times the peripheral speed V11 and not more than 1.2 times the peripheral speed V11.

[0100] Furthermore, the peripheral speed V12 of the molding rotor 2 at the intersection P2 is preferably equal to or greater than the peripheral speed V11 of the casting rotor 1 at the second groove 11B, and the peripheral speed V12 is even more preferably faster than the peripheral speed V11. In this case, adhesion and friction between the casting material and the molding rotor 2 are small. It is more preferable that the peripheral speed V12 is equal to or greater than the peripheral speed V11 and is within 20% of the peripheral speed V11 (equal to or greater than the peripheral speed V11×1.2).

[0101] 1, the intersection P2 is the portion of the forming rotor 2 that covers the opening of the second groove 11B where the peripheral speed is the slowest. In the portion of the forming rotor 2 that covers the opening of the second groove 11B, the peripheral speed of the portion other than the intersection P2 is faster than the peripheral speed V12 at the intersection P2. By ensuring that the peripheral speed V12 at the intersection P2, which has the slowest peripheral speed, satisfies the above requirement in the portion of the forming rotor 2 that covers the opening of the second groove 11B, the above effect can be reliably obtained.

[0102] When the production of casting material in the first groove 11A and the production of casting material in the second groove 11B are carried out simultaneously or at one time, it is preferable to rotate the casting rotor 1 and the molding rotor 2 so as to satisfy the above (1) and (2).

[0103] The peripheral speed V1 of the first groove 11A and the peripheral speed V11 of the second groove 11B of the casting rotor 1 are not particularly limited, but may be, for example, 4 m / min. or more and 12 m / min. or less.

[0104] There is no particular limitation on the material of the casting material that can be produced by the above-described production apparatus 100. The material of the casting material may be, for example, aluminum, copper, or an alloy containing at least one of these.

[0105] The manufacturing apparatus 100 provides the following effects.

[0106] The first groove 11A and the second groove 11B formed on the side surface 1S of the casting rotor 1 shown in FIG. 1 and elsewhere form a casting mold. The portion of the opening of the first groove 11A covered by the side surface 2S of the molding rotor 2 is an area surrounded by the casting rotor 1 and the molding rotor 2 (see FIG. 4), and this area exists for a certain length so as to surround the center line C1 of rotation of the casting rotor 1 (see FIG. 1). The molten metal injected from the injection section 3 into the first groove 11A passes through this area in the rotation direction of the casting rotor 1 and is cooled and solidified while surrounded by the casting rotor 1 and the molding rotor 2. At this time, the molding rotor 2 does not press against the molten metal passing through the first groove 11A. This prevents burrs from occurring.

[0107] Furthermore, the casting rotor 1 and the molding rotor 2 may be rotors smaller than the casting wheels used in casting machines that use the Properti process. Even with such casting rotor 1 and molding rotor 2, the occurrence of burrs can be suppressed. Furthermore, since the molding rotor 2 is positioned to the side of the casting rotor 1 so that the side surface 1S of the casting rotor 1 faces the side surface 2S of the molding rotor 2, the manufacturing apparatus 100 is compact and does not require a large installation space.

[0108] Furthermore, by rotating the molding rotor 2 in the same direction as the casting rotor 1, the casting material can be cast continuously.

[0109] 1 and 2, the center line C1 of rotation of the casting rotor 1 and the center line C2 of rotation of the molding rotor 2 are both horizontal. In this case, the casting rotor 1 and the molding rotor 2 are arranged upright in the vertical direction, so the installation space for the manufacturing apparatus 100 can be reduced.

[0110] Furthermore, a first groove 11A and a second groove 11B are formed on the side surface 1S of the casting rotor 1. By pouring molten metal into the first groove 11A and the second groove 11B, two casting materials can be produced simultaneously or at one time. Furthermore, if the dimensions, shapes, etc. of the multiple grooves are different, multiple casting materials with different cross-sectional areas and shapes can be produced simultaneously or at one time.

[0111] Furthermore, as shown in Figures 1 and 2, if the casting rotor 1 and the molding rotor 2 are both disk-shaped and the diameter of the molding rotor 2 is smaller than the diameter of the casting rotor 1, it is easy to design the casting material manufacturing apparatus 100.

[0112] Next, an experiment in which a casting material was produced using the above-described production apparatus will be described.

[0113] [Experiment 1] A manufacturing apparatus having the same configuration as the manufacturing apparatus 100 shown in FIG. 1 was used. The casting rotor used was 600 mm in diameter and 20 mm in thickness. The molding rotor used was 400 mm in diameter and 10 mm in thickness. The casting rotor and the casting rotor were made of SS400 iron-based material. The casting rotor is formed with a first groove (11A) as shown in Fig. 1. The opening width of the first groove (W1 shown in Fig. 3) is 10 mm, the bottom width of the first groove (w1 shown in Fig. 3) is 7.3 mm, and the depth of the first groove (d1 shown in Fig. 3) is 7 mm. The area of ​​the first groove in the radial cross section of the casting rotor (see Fig. 3) is 60.6 mm 2 is.

[0114] The above manufacturing apparatus was arranged as shown in Figures 1 and 2, and an aluminum alloy having the following composition was cast. [Table 1]

[0115] The injection temperature when the molten metal was injected into the first groove was 700° C. The diameter of the opening at the lower end of the nozzle (32) shown in FIGS.

[0116] The conditions for rotating the casting rotor were as follows: The molding rotor was not rotated. In No. 1, the casting rotor was rotated so that the peripheral speed of the first groove of the casting rotor was 4 m / min. In No. 2, the casting rotor was rotated so that the peripheral speed of the first groove of the casting rotor was 10 m / min.

[0117] (Results of Experiment 1) In both No. 1 and No. 2, the casting material could not be continuously cast. In the first groove (11A shown in Figure 1), the casting material was cut in the area where the opening was covered by the forming rotor (2), particularly near the intersection P1 shown in Figure 1, due to adhesion of the molten metal or casting material to the forming rotor or friction with the forming rotor. Furthermore, no burrs were generated on the cut casting material.

[0118] From the above, it has been found that in order to continuously cast a casting material, it is necessary to rotate the molding rotor.

[0119] [Experiment 2] The peripheral speeds of the casting rotor and the molding rotor were set as shown in Table 2. Except for these, the cast material was produced under the same conditions as in Experiment 1. Note that the "peripheral speed of the casting rotor" is the peripheral speed of the first groove of the casting rotor, and the "peripheral speed of the molding rotor" is the peripheral speed at the intersection P1 shown in Figure 1. [Table 2]

[0120] (Results of Experiment 2) Cast material could be continuously cast in all of Nos. 3 to 8. This suggests that by rotating both the casting rotor and the molding rotor, cast material can be continuously cast. Furthermore, no burrs were generated in the resulting casting material.

[0121] For the cast materials Nos. 3 to 8 shown in Table 2, surface A in contact with the casting rotor (hereinafter sometimes referred to as "casting rotor side A" or "A") and surface B in contact with the molding rotor (hereinafter sometimes referred to as "molding rotor side B" or "B") were observed. Surfaces A and B were compared for the same peripheral speed of the casting rotor in Table 2. For reference, photographs of Nos. 7 and 8 are shown in Figure 5.

[0122] <Peripheral speed of casting rotor: 4 m / min.: No. 3 and No. 4> In both No. 3 and No. 4, there were almost no scratches due to friction on the casting rotor side A. On the forming rotor side B, No. 4, which has a faster peripheral speed of the forming rotor, had fewer scratches due to friction than No. 3. No. 4 had almost no scratches on the forming rotor side B.

[0123] <Peripheral speed of casting rotor: 6 m / min.: No. 5 and No. 6> In both No. 5 and No. 6, there were almost no scratches due to friction on the casting rotor side A. On the forming rotor side B, No. 6, which has a faster peripheral speed of the forming rotor, had fewer scratches due to friction than No. 5. No. 6 had almost no scratches on the forming rotor side B.

[0124] <Circumferential speed of casting rotor: 10 m / min.: No. 7 and No. 8> As shown in Figure 5, both No. 7 and No. 8 had almost no scratches due to friction on the casting rotor side A. On the forming rotor side B, No. 8, which has a faster peripheral speed of the forming rotor, had fewer scratches due to friction than No. 7. No. 8 had almost no scratches on the forming rotor side B.

[0125] From the above, it is believed that the faster the peripheral speed of the molding rotor, the less friction there is between the casting material and the casting rotor and the molding rotor. Furthermore, when the peripheral speed of the molding rotor is equal to or higher than that of the casting rotor, it is believed that the frictional force between the casting material and the casting rotor and the molding rotor is small.

[0126] [Experiment 3] The peripheral speed of the molding rotor was made faster than that of the casting rotor, and a cast material having a smaller cross-sectional area than the cast material of Experiment 2 was produced.

[0127] The casting material was produced using the second groove (see "second groove 11B" in Figure 1). The width of the opening of the second groove (W2 shown in Figure 3) was 8 mm, the width of the bottom of the second groove (w2 shown in Figure 3) was 5.5 mm, and the depth of the first groove (d2 shown in Figure 3) was 7 mm. The cross-sectional area of ​​the second groove in the radial cross section of the casting rotor (see Figure 3) was 47.3 mm 2 The cross-sectional area of ​​the second groove (47.3 mm 2 ) is the cross-sectional area of ​​the first groove (60.6 mm 2 ) smaller than

[0128] The peripheral speeds of the casting rotor and the molding rotor are shown in Table 3. Here, the "peripheral speed of the casting rotor" is the peripheral speed of the second groove of the casting rotor, and the "peripheral speed of the molding rotor" is the peripheral speed at the intersection P2 shown in Figure 1. [Table 3]

[0129] Except for the above, the cast materials were produced under the same conditions as in Experiment 1.

[0130] (Results of Experiment 3) Both No. 9 and No. 10 were able to continuously cast materials, and no burrs were generated in the resulting castings.

[0131] Figure 6 shows photographs of the casting rotor side A and the forming rotor side B of the cast materials No. 9 and No. 10. For both No. 9 and No. 10, there were almost no scratches due to friction on the casting rotor side A and the forming rotor side B.

[0132] From the above, the following was found: The smaller the cross-sectional area of ​​the casting material, the easier it is for the molten metal or casting material to cool during casting. However, even when the cross-sectional area of ​​the casting material is small, it is believed that the casting material can be continuously cast by rotating both the casting rotor and the molding rotor. Furthermore, it has been found that even if the peripheral speed of the molding rotor is made faster than that of the casting rotor, the molten metal or casting material is less likely to stick to the molding rotor, or the frictional force is reduced.

[0133] [Experiment 4] The cooling rate of the cast material during casting was investigated for No. 8 in Experiment 2. The cooling rate was calculated from the dendrite arm spacing of the cast material.

[0134] The cooling rates of the cast materials were as follows: Rotating body side (B): 214℃ / s The casting rotor side opposite the forming rotor side (A): 263°C / s · The surface of the casting rotor facing the center of rotation: 139°C / s - Surface opposite to the center of rotation of the casting rotor: 319°C / s Center of the casting: 150℃ / s

[0135] The cooling rate is significantly faster than the cooling rate (approximately 0.5 to 13°C / s) achieved when casting materials are produced using conventional casting equipment using the Properti method. Because of the fast cooling rate, it is possible to increase the amount of added elements dissolved, resulting in a casting material with high thermal conductivity. Therefore, it is believed to be effective in producing casting materials for wire rods used in wire harnesses and other applications.

[0136] [Experiment 5] Instead of the aluminum alloy having the composition shown in Table 1, a Cu-Zn alloy (C2300 (15% Zn)) was cast. During casting, the peripheral speed of the casting rotor was set to 8 m / min, and the peripheral speed of the forming rotor was set to 9 m / min. Except for the above, the cast materials were produced under the same conditions as in Experiment 1.

[0137] (Results of Experiment 5) Cu-Zn alloy casting material could be continuously cast. No burrs were generated on the casting material. There were almost no scratches due to friction on the casting rotor side A and the forming rotor side B of the casting material. In the rolling after casting, no cracks were generated, and the cross-sectional area of ​​the casting material was reduced to 63.1 mm. 2 to 7.1 mm 2 It was possible to roll it until

[0138] From the above, it was found that the manufacturing apparatus of the present invention can continuously cast copper and copper alloys with high liquidus temperatures. It was also found that no burrs are generated in the resulting cast material. From this, it was found that the manufacturing apparatus of the present invention can be used to produce cast materials for various applications, such as wire harnesses made of Al alloys and forged products made of copper alloys.

[0139] Although the embodiments of the present invention have been described above with reference to the drawings, it should be understood that the specific configurations are not limited to these embodiments. The scope of the present invention is defined by the claims rather than the above description, and includes all modifications within the meaning and scope of the claims.

[0140] For example, the shapes, sizes, thicknesses, arrangements, etc. of the casting rotor 1 and the molding rotor 2 are not limited to those shown in FIGS. 1 and 2, and can be changed.

[0141] For example, the casting rotor 1 and the molding rotor 2 do not have to be plate-shaped. The casting rotor 1 and the molding rotor 2 do not have to be disk-shaped, and for example, when viewed from the side, the casting rotor 1 may be elliptical or polygonal.

[0142] The size and thickness of the casting rotor 1 and the molding rotor 2 are not limited to those exemplified in the above embodiment. Furthermore, the thickness of the casting rotor 1 and the thickness of the molding rotor 2 do not have to be constant.

[0143] 1 and 2, the center line C1 of rotation of the casting rotor 1 and the center line C2 of rotation of the molding rotor 2 are horizontal, but they do not have to be horizontal. The center line C1 of rotation of the casting rotor 1 and the center line C2 of rotation of the molding rotor 2 may be inclined relative to the horizontal direction or may be vertical.

[0144] In Figures 1 and 2, the side surface 1S of the casting rotor 1 and the side surface 2S of the molding rotor 2 are arranged along the vertical direction, but they may also be arranged along a direction inclined relative to the vertical direction, or may be arranged horizontally.

[0145] 1, the molding rotator 2 is located to the lower left of the casting rotator 1. However, the position of the molding rotator 2 relative to the casting rotator 1 is not limited to the position shown in FIG. 1 and can be changed. For example, the position of the molding rotator 2 relative to the casting rotator 1 may be determined based on the size of the casting rotator 1, the size of the molding rotator 2, the rotation directions of the casting rotator 1 and the molding rotator 2, etc.

[0146] Furthermore, the size of the molding rotor 2 relative to the casting rotor 1, the positional relationship between the center line C1 of rotation of the casting rotor 1 and the center line C1 of rotation of the molding rotor 2, etc. are not limited to those shown in Figure 1, etc., and can be changed.

[0147] Furthermore, the shape, dimensions, area, etc. (see Figure 3) of the first groove 11A and the second groove 11B formed on the side surface 1S of the casting rotor 1 shown in Figure 1 are not limited to those shown in Figures 1 and 3 and can be changed.

[0148] 1 are annular in shape, centered on the rotation center line C1 of the casting rotor 1. However, the grooves may have shapes other than annular, as long as they are formed so as to surround the rotation center line C1 of the casting rotor 1. For example, the grooves may be arc-shaped, arc-like, or elliptical, centered on the rotation center line C1 of the casting rotor 1.

[0149] 7 shows an example in which arc-shaped grooves are formed in a casting rotor 201 of a manufacturing apparatus 200. In FIG. 7, the same components as those in the above embodiment and FIG. 1 are denoted by the same reference numerals.

[0150] A first groove 211A and a second groove 211B are formed on a side surface 201S of the casting rotor 201.

[0151] The first groove 211A and the second groove 211B are arc-shaped and centered on the rotation center line C1 of the casting rotor 201. The diameter of the first groove 211A is larger than the diameter of the second groove 211B. The first groove 211A is formed radially outward of the second groove 211B.

[0152] The circumferential length of the first grooves 211A is not particularly limited. The circumferential length of the second grooves 211B is not particularly limited. For example, the circumferential lengths of the first grooves 211A and the second grooves 211B may be determined based on the size of the casting rotor 201, the size of the molding rotor 2, etc.

[0153] Furthermore, two grooves (first groove 11A and second groove 11B) are formed in the casting rotor 1 shown in Fig. 1. However, the number of grooves formed in the casting rotor may be one, or three or more. Furthermore, when two or more grooves are formed in the casting rotor, the shape, dimensions, area, etc. of each groove in the radial cross section of the casting rotor (see Fig. 3) may be the same or different.

[0154] In addition, in a side view of the manufacturing apparatus 100 shown in FIG. 1, molten metal is poured into the first groove 11A or the second groove 11B in the "left part X" in the figure, where the casting rotor 1 rotates from upstream to downstream. However, the pouring position of the molten metal is not limited to the above. For example, in a side view of FIG. 1, the pouring position of the molten metal may be the first groove 11A or the second groove 11B in the "right part Y" in the figure, where the casting rotor 1 rotates from downstream to upstream, or may be the apex of the first groove 11A or the apex of the second groove 11B. [Explanation of symbols]

[0155] 1, 201 Casting rotor 1S, 201S side 2. Rotating body for molding 2S side 3 Injection part 4. Crucible 11 Rotation axis 11A, 211A 1st groove 11B, 211B 2nd groove 21 Rotation axis 31 Tundish 32 nozzles 100, 200 manufacturing equipment C1 Center line of rotation of casting rotor C2 Center line of rotation of the molding rotor P1, P2 intersection

Claims

1. A manufacturing apparatus for a casting material used in processing a metal wire, comprising: a casting rotor having a groove formed on its side into which molten metal is poured; a molding rotor disposed laterally of the casting rotor so that its side surface covers a portion of the opening of the groove; Equipped with the groove is formed so as to surround a center line of rotation of the casting rotor, a center line of rotation of the casting rotor and a center line of rotation of the molding rotor are substantially parallel to each other and are arranged with a deviation therebetween; The molding rotor rotates in the same direction as the casting rotor. Casting material manufacturing equipment.

2. The casting material manufacturing apparatus according to claim 1, The center line of rotation of the casting rotor and the center line of rotation of the molding rotor are both horizontal. Casting material manufacturing equipment.

3. 3. The casting material manufacturing apparatus according to claim 1, When viewed from the side, the peripheral speed of the molding rotor at an intersection of a virtual line extending from the rotation center of the casting rotor toward the rotation center of the molding rotor and the groove is equal to or greater than the peripheral speed of the casting rotor in the groove. Casting material manufacturing equipment.

4. 3. The casting material manufacturing apparatus according to claim 1, Further, an injection part is provided for injecting molten metal into the groove, The injection part is arranged so that the groove on the side of the casting rotor rotating from upstream to downstream and the tip of the injection part overlap with each other in a side view, whereby molten metal is injected into the groove. Casting material manufacturing equipment.

5. 3. The casting material manufacturing apparatus according to claim 1, A plurality of the grooves are formed on the side surface of the casting rotor, The plurality of grooves are all formed so as to surround the center line of rotation of the casting rotor. Casting material manufacturing equipment.

6. 3. The casting material manufacturing apparatus according to claim 1, The casting rotor and the molding rotor are both disk-shaped, The diameter of the molding rotor is smaller than the diameter of the casting rotor. Casting material manufacturing equipment.

Images