Ingot casting apparatus

Abstract

To provide an ingot casting apparatus capable of making the temperature of a mold material uniform in heat treatment.SOLUTION: A casting device (1) is provided with a turntable (4), a rotating mechanism (42), a heating coil (51) provided in a chamber (3), a heat-retaining furnace (7) provided around the heating coil (5), and a cooling raising and lowering mechanism (6), wherein a plurality of arranging sections (41), at which mold materials (M) containing metal granular bodies can be respectively arranged, are formed in the turntable (4), and wherein a mold material (M) having a mold material (M) stored therein is arranged in the arranging sections (41). The rotating mechanism 42 rotates the turntable 4 to change the positions of the plurality of arranging portions 41, and the heating coil 51 heats the one mold material M inside the heat insulating furnace 7, thereby making it possible to simultaneously perform a heating process of melting the granular material accommodated in the one mold material M into a molten metal and a cooling process of cooling the other mold material M by the cooling and lifting mechanism 6 to solidify the molten metal accommodated in the other mold material M into a metal ingot.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an ingot casting apparatus for casting ingots of precious metals such as gold and silver. [Background technology]

[0002] Conventionally, there is known a technique for melting and casting precious metals such as gold and silver (see, for example, Patent Document 1). Patent Document 1 describes an ingot casting device in which a rotation mechanism rotates a turntable, thereby changing the positions of a plurality of placement units.

[0003] The above-mentioned Patent Document 1 discloses a technology that simultaneously performs a heating process in which a heating mechanism heats a mold material to melt granular material contained in the mold material into molten metal, and a cooling process in which a cooling mechanism cools another mold material to solidify the molten metal contained in the other mold material into a metal ingot. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2023-92414 Summary of the Invention [Problem to be solved by the invention]

[0005] In the technology described in Patent Document 1, it is necessary to make the temperature of the mold material uniform during the heat treatment in order to ensure the quality of the metal ingot. Therefore, an object of the present disclosure is to solve the above-mentioned problems. [Means for solving the problem]

[0006] Below, we will explain means for solving the above problems.

[0007] The ingot casting device of the present invention is an ingot casting device comprising: a chamber having a hollow main body and a lid capable of closing the main body; a turntable provided at the bottom of the chamber; a rotation mechanism for rotating the turntable; a heating mechanism having a heating coil provided within the chamber; a heat retention furnace provided around the heating coil; and at least one cooling mechanism provided at a location different from the heating mechanism in a plan view, wherein the turntable has a plurality of placement sections formed of an electrically conductive material and capable of placing mold materials containing metal granules in each of the placement sections; the positions of the plurality of placement sections can be changed by the rotation mechanism rotating the turntable; the heating mechanism applies a voltage to the heating coil to induction heat one of the mold materials inside the heat retention furnace, thereby enabling simultaneous heating treatment to melt the granules contained in one of the mold materials into molten metal; and a cooling treatment to solidify the molten metal contained in the other mold materials into metal ingots by the cooling mechanism cooling the other mold materials.

[0008] In addition, in the ingot casting apparatus of the present invention, it is preferable that the heating coil is wound in a direction rotating around an axis in the vertical direction, and the heat retention furnace is provided with a furnace main body portion that closes the gaps in the heating coil and the upper surface of the heating coil and is open downward, and a closing plate that closes the opening at the bottom of the furnace main body portion.

[0009] In the ingot casting apparatus according to the present invention, the closure plate is preferably configured to be movable back and forth between a closure state in which the opening is closed and an open state in which the opening is open.

[0010] Furthermore, in the ingot casting apparatus according to the present invention, it is preferable that the heating mechanism is provided above the turntable within the chamber, a heating and lifting mechanism is provided below the turntable at the same location as the heating mechanism in a plan view, the heating mechanism performs a heating treatment while the heating and lifting mechanism raises one of the mold materials inside the heating coil, and the blocking plate, in the blocked state, blocks the portion of the opening where the heating and lifting mechanism is not present.

[0011] In addition, in the ingot casting apparatus of the present invention, the blocking plate comprises a first blocking plate arranged so as to be able to move forward and backward from one side of the heating lifting mechanism, and a second blocking plate arranged so as to be able to move forward and backward from the other side of the heating lifting mechanism, and it is preferable that in the blocked state, the blocking plate blocks the portion of the opening where the heating lifting mechanism is not present by sandwiching the heating lifting mechanism between the first blocking plate and the second blocking plate.

[0012] In addition, in the ingot casting apparatus according to the present invention, it is preferable that the cooling mechanism is a cooling lifting mechanism provided below the turntable, and that the cooling process is performed while the cooling lifting mechanism lifts the other mold material.

[0013] In addition, in the ingot casting apparatus according to the present invention, it is preferable that the cooling lifting mechanism includes a metal cooling plate and a cooling path formed inside the cooling plate, and that the cooling process is performed by circulating cooling water through the cooling path while the cooling lifting mechanism lifts the other mold material via the cooling plate. [Effects of the Invention]

[0014] According to the ingot casting device of the present invention, by performing the heat treatment inside the heat-retaining furnace, it is possible to make the temperature of the mold material uniform and ensure the quality of the metal ingot. [Brief explanation of the drawings]

[0015] [Figure 1]FIG. 1 is a perspective view showing an ingot casting apparatus. [Figure 2] FIG. 2 is a perspective view showing the internal structure of the chamber. [Figure 3] FIG. [Figure 4] FIG. 10 is a plan view showing a state in which a mold material is placed on a turntable. [Figure 5] Cross-sectional view taken along line XX in Figure 4. [Figure 6] Cross-sectional view of line YY in Figure 4. [Figure 7] FIG. XX line cross-sectional view showing the first heating step. [Figure 8] 4 is a cross-sectional view taken along line YY, showing a stage prior to the first heating step. FIG. [Figure 9] FIG. 6 is a cross-sectional view taken along line YY showing the first heating step. [Figure 10] XX line cross-sectional view showing the second heating step and the first cooling step. [Figure 11] XX line cross-sectional view showing the sixth cooling step. DETAILED DESCRIPTION OF THE INVENTION

[0016] An ingot casting apparatus (hereinafter simply referred to as "casting apparatus") 1 according to one embodiment of the present invention will be described below with reference to Figures 1 to 6. Casting apparatus 1 is used to produce metal ingots by melting granular material of precious metal (e.g., gold or silver) called "shot," followed by cooling and solidifying it.

[0017] When the casting device 1 is used, a plurality of mold materials M (up to six in this embodiment) are placed inside the chamber 3 with granular material contained in recesses Mr formed in each mold material M. Then, the mold materials M are heated to melt the granular material, and then the mold materials M are cooled to produce metal ingots.

[0018] As shown in Figures 1 to 6, casting apparatus 1 includes components such as a housing 2, a chamber 3, a turntable 4, a rotation mechanism 42, a heating mechanism 5, a heating and elevating mechanism 52, a cooling and elevating mechanism 6, and a heat-retaining furnace 7. A vacuum pump and an inert gas injection cylinder (not shown) are connected to casting apparatus 1. Each component will be described below. In this embodiment, the lower right side of Figure 1 is the front of casting apparatus 1, and the upper right side of Figure 1 is the right side of casting apparatus 1.

[0019] The housing 2 forms the outer shape of the casting device 1 and houses each of the components of the casting device 1. On the right side of the top surface of the housing 2, an operation unit 2a is provided that allows the user to control various operations of the casting device 1 (decompressing the chamber 3 and injecting inert gas, rotating the turntable 4 with the rotation mechanism 42, heating the mold material M with the heating mechanism 5, driving the heating and lifting mechanism 52, cooling the mold material M with the cooling and lifting mechanism 6, etc.). When the user operates the operation unit 2a, various operations of the casting device 1 are controlled via a control device (not shown).

[0020] A chamber 3 is provided on the top surface of the housing 2. The chamber 3 includes a hollow main body 31 and a lid 32 that can close the main body 31. The lid 32 is attached to the housing 2 via a hinge 33 so that it can rotate up and down. The lid 32 is provided with a window 32a made of a transparent plate so that the inside of the chamber 3 can be seen when the main body 31 is closed.

[0021] A disk-shaped turntable 4 with a vertical rotation axis is provided at the bottom of the chamber 3. The turntable 4 is made of a heat-resistant material, for example, a laminate of glass fiber sheets hardened with a binder. A rotation mechanism 42 that rotates the turntable 4 is housed below the main body 31 inside the housing 2. As shown in FIG. 5, the rotation mechanism 42 is fixed to the underside of the bottom of the main body 31.

[0022] 2 and 3, the turntable 4 has six openings 4a that penetrate the turntable 4 at angles of 60 degrees each. An arrangement portion 41 in which a mold material M can be placed is provided on the inner edge of each opening 4a. The arrangement portion 41 is made of heat-resistant ceramic. The number of openings 4a (the number of arrangement portions 41) formed in the turntable 4 is not limited to six, and any other number can be used.

[0023] The rotation mechanism 42 is composed of a motor support section 43, a motor 44, and a shaft member 45. The motor support section 43 is fixed to the underside of the center section of the main body section 31 and supports the motor 44. The motor 44 rotates the shaft member 45 under the control of a control device. A turntable 4 is fixed to the shaft member 45, and rotation of the shaft member 45 causes the turntable 4 to rotate clockwise in a plan view (see the arrow in FIG. 2). In this way, the rotation mechanism 42 rotates the turntable 4, thereby changing the positions of the six arrangement sections 41.

[0024] A heating coil 51 is provided on the right side of the inner surface of the chamber 3 as the heating mechanism 5. The heating coil 51 is provided above the turntable 4 and is wound in a direction that rotates around an axis in the vertical direction (so that the winding direction is approximately horizontal). A voltage is applied to the heating coil 51 under the control of a control device. The heating coil 51 is a tubular member made of copper with a hollow interior, and cooling water can be circulated inside.

[0025] 5, a heating lifting mechanism 52 is provided below the turntable 4 at the same location as the heating coil 51 in a plan view. The heating lifting mechanism 52 is made up of a cylinder support part 53, a heating lifting cylinder 54, a heating rod 55, a block support member 56, and a lifting block 57.

[0026] The cylinder support part 53 is fixed to the underside of the main body part 31 below the heating coil 51, and supports a heating lift cylinder 54, which is an air cylinder. The heating lift cylinder 54 moves a heating rod 55 up and down under the control of a control device. A heat-resistant ceramic lift block 57 is fixed to the upper end of the heating rod 55 via a block support member 56. When the heating lift cylinder 54 is driven, the lift block 57 rises as shown in Figures 7 to 9. At this time, the upper surface of the lift block 57 passes through the opening 4a of the turntable 4 and is displaced above the turntable 4.

[0027] In the casting apparatus 1 according to this embodiment, the mold material M is made of a conductive carbon material. As shown in Figures 7 and 10, the heating and lifting mechanism 52 raises the mold material M inside the heating coil 51, and then a voltage is applied to the heating coil 51 as indicated by arrow C in Figures 7 and 10. In this way, in the casting apparatus 1, the mold material M is induction-heated by the heating coil 51, thereby performing a heat treatment.

[0028] As described above, in the casting apparatus 1 according to this embodiment, the mold material M is heated by induction heating using the heating coil 51. This makes it possible to suppress a temperature rise in the heating mechanism 5, thereby suppressing the influence of heat from the heating mechanism 5. Note that the casting apparatus 1 can also be configured to heat the mold material M by other methods, such as heating using an electric heater.

[0029] Furthermore, in the casting device 1 according to this embodiment, as described above, the heat treatment is performed with the mold material M elevated by the heating and elevating mechanism 52. This allows the mold material M to be heated at a location away from the turntable 4, thereby suppressing the thermal influence of the mold material M heated by the heating mechanism 5 on the turntable 4.

[0030] The casting device 1 according to this embodiment is provided with a heat-retaining furnace 7 around the heating coil 51. The casting device 1 is configured such that the heating mechanism 5 applies a voltage to the heating coil 51 to inductively heat the mold material M inside the heat-retaining furnace 7.

[0031] As shown in Figures 2, 3, and 6, the heat retention furnace 7 in this embodiment includes a furnace main body 71, and a pair of closure plates 72, fixing portions 73, rail members 74, slide members 75, connecting rods 76, and actuators 77.

[0032] In the heat-retaining furnace 7, the furnace main body 71 is formed in a box shape that is open downwards, with the gaps on the side surfaces of the heating coil 51, the inner wall, and the top surface sealed with a ceramic coating heat insulating material. Since the furnace main body 71 is preferably fire-resistant to 1250 to 1600 degrees, the inner wall of the furnace main body 71 is preferably formed to a thickness of several mm to several tens of mm (more preferably several mm to several tens of mm).

[0033] In addition to a ceramic coating agent, insulating materials such as ceramic adhesive, ceramic cement, or castable cement can be used as the material for the furnace main body 71. The furnace main body 71 can also be formed by attaching a ceramic board with a thickness of several mm to several tens of mm (more preferably several mm to several tens of mm) to the heating coil 51.

[0034] In the heat-retaining furnace 7, a pair of closing plates 72, 72 are installed in the front-to-rear direction to close the opening at the bottom of the furnace body 71. Each closing plate 72 is made of a hard insulating board made of ceramic fiber solidified with an inorganic binder. It is also possible to increase the strength and insulating properties of the closing plates 72 by laminating a ceramic board on them.

[0035] 2 and 3, each closure plate 72 is assembled to the chamber 3 via a fixing portion 73 fixed to the inner surface of the main body portion 31 of the chamber 3. A rail member 74 is fixed to the fixing portion 73, and a slide member 75 is slidably provided on a rail portion 74a of the rail member 74. By assembling the closure plate 72 to the slide member 75, the closure plate 72 can be advanced and retreated in the front-rear direction.

[0036] 6, an actuator 77 is provided outside the main body 31, and a connecting rod 76 extends from the actuator 77 so as to be able to advance and retreat under the control of a control device. The tip of the connecting rod 76 is connected to a slide member 75, so that the slide member 75 and the closure plate 72 can advance and retreat by driving the actuator 77. It is also possible to adopt a configuration in which the rail member 74 and slide member 75 are not provided, the actuator 77 is assembled to the main body 31, and the closure plate 72 is fixed to a cylinder that advances and retreats from the actuator 77.

[0037] As described above, in the casting apparatus 1, the closure plates 72 are configured to be movable toward and away from each other by driving the actuators 77. The closure plates 72 are configured to be movable between a closed state (see FIG. 9) in which they advance toward the furnace main body 71 and close the openings, and an open state (see FIG. 8) in which they retreat from the furnace main body 71 and open the openings.

[0038] A recess 72a is formed at the tip of each of the closing plates 72. When the closing plates 72·72 are in the closing state, the lifting blocks 57 are accommodated in the recesses 72a·72a. As a result, in the closing state, the closing plates 72·72 close the portions of the opening of the furnace body 71 where the lifting blocks 57 of the heating lifting mechanism 52 are not present.

[0039] As described above, in the casting apparatus 1, the closing plates 72, 72 constituting the heat-retaining furnace 7 are configured to include a first closing plate 72 arranged so as to be movable forward and backward from the front side of the heating and lifting mechanism 52, and a second closing plate 72 arranged so as to be movable forward and backward from the rear side of the heating and lifting mechanism 52. In the closed state, the lifting block 57 is sandwiched between the front first closing plate 72 and the rear second closing plate 72, thereby closing the portion of the opening where the lifting block 57 is not present.

[0040] A cooling lifting mechanism 6 (first cooling lifting mechanism 6A) is provided on the underside of the chamber 3 at a position displaced 60 degrees clockwise from the heating lifting mechanism 52. In addition, a cooling lifting mechanism 6 (second cooling lifting mechanism 6B) is provided on the underside of the chamber 3 at a position displaced 60 degrees clockwise from the first cooling lifting mechanism 6A. In this embodiment, the first cooling lifting mechanism 6A and the second cooling lifting mechanism 6B have the same configuration, so the following description will focus on the first cooling lifting mechanism 6A.

[0041] The cooling lifting mechanism 6 is composed of a cylinder support part 61, a cooling lifting cylinder 62, a cooling rod 63, a cooling block 64, and a cooling plate 65. The cylinder support part 61 is fixed to the underside of the main body part 31 and supports the cooling lifting cylinder 62, which is an air cylinder. The cooling lifting cylinder 62 moves the cooling rod 63 up and down under the control of a control device. The cooling plate 65, which is a copper plate, is fixed to the upper end of the cooling rod 63 via the cooling block 64.

[0042] A cooling path 64a is formed inside the cooling block 64. A cooling path 65a is formed inside the cooling plate 65. The cooling paths 64a and 65a are connected to each other and to a pipe P. As shown in FIGS. 10 and 11 , cooling water W is supplied from the pipe P, causing the cooling water W to circulate inside the cooling block 64 and the cooling plate 65.

[0043] By driving the cooling lift cylinder 62, the cooling plate 65 is raised as shown in Figures 10 and 11. At this time, the upper surface of the cooling plate 65 passes through the opening 4a of the turntable 4 and is displaced slightly above the turntable 4. In this embodiment, the cooling lift mechanism 6 raises the cooling plate 65 in contact with the mold material M as shown in Figures 10 and 11, with cooling water W circulating inside the cooling plate 65. In this way, in the casting apparatus 1, the cooling process is performed by circulating cooling water W through the cooling plate 65.

[0044] As described above, in the casting apparatus 1 according to this embodiment, the cooling water W is circulated through the cooling plate 65 to cool the mold material M, thereby improving the cooling efficiency of the cooling lifting mechanism 6 for the mold material M. Note that the casting apparatus 1 can also be configured to cool the mold material M using other methods, such as cooling with cooling air.

[0045] Furthermore, in the casting apparatus 1 according to this embodiment, as described above, the cooling process is performed with the mold material M elevated by the cooling lifting mechanism 6. This allows the cooling plate 65 to be in close contact with the mold material M, thereby improving the cooling efficiency of the mold material M by the cooling lifting mechanism 6.

[0046] In this embodiment, two cooling lifting mechanisms 6 are provided so that one mold material M is subjected to cooling treatment twice, but the casting device 1 is only required to be provided with at least one cooling mechanism, and the number is not limited. In other words, the casting device 1 may be provided with one or three or more cooling mechanisms (a maximum of five in this embodiment).

[0047] Next, a procedure for using the casting apparatus 1 according to this embodiment will be described with reference to Figures 1 to 11. Below, a case where a metal ingot is produced using six mold materials M, which is the maximum number that can be used with the casting apparatus 1, will be described.

[0048] First, metal particles are placed in the recesses Mr formed in each mold material M and the recesses Mr are covered, and then the mold materials M are placed in the six placement sections 41 as shown in Figure 4. After that, the lid section 32 of the chamber 3 is closed to seal the main body section 31, and the chamber 3 is evacuated and an inert gas is injected. At this time, the closing plates 72 are in an open state.

[0049] Each mold material M described in this embodiment has six recesses Mr formed therein, as shown in Fig. 4. Therefore, as shown in Fig. 4, the casting apparatus 1 can produce up to 36 metal ingots in one casting process.

[0050] In the casting apparatus 1 according to this embodiment, it is also possible to change the size and number of recesses Mr formed in the mold material M depending on the size (weight) of the metal ingot to be produced. For example, if two recesses Mr are formed in one mold material M, the casting apparatus 1 can produce up to 12 metal ingots in one casting process.

[0051] In the casting apparatus 1 according to this embodiment, the turntable 4 rotates clockwise in a plan view, and the mold material M is therefore heat-treated counterclockwise. In Fig. 4, the mold material M to be heat-treated first is the first mold material M1, and the subsequent mold materials M to be heat-treated are the second mold material M2 to the sixth mold material M6 in the counterclockwise direction.

[0052] 7 to 9, the heating lift cylinder 54 is driven to lift the first mold material M1 on the upper surface of the lift block 57 to the inside of the heating coil 51. Then, the actuator 77 is driven to bring the closing plates 72 close to each other as shown in FIG. 9 to form a closed state, thereby forming the heat-retaining furnace 7. Furthermore, a voltage is applied to the heating coil 51 inside the heat-retaining furnace 7 to induction-heat the first mold material M1 with the heating coil 51, thereby performing a heat treatment and melting the granular material in the first mold material M1 (first heating step).

[0053] Thereafter, the closing plates 72 are opened, and the heating lifting cylinder 54 is driven to lower the first mold material M1 onto the upper surface of the turntable 4. Furthermore, the rotation mechanism 42 is driven to rotate the turntable 4 by 60 degrees clockwise in a plan view. As a result, the first mold material M1 is positioned in the same position as the first cooling lifting mechanism 6A, and the second mold material M2 is positioned in the same position as the heating coil 51 and the heating lifting mechanism 52.

[0054] Next, as shown in Fig. 10, the heating lift cylinder 54 is driven to lift the second mold material M2 on the upper surface of the lift block 57 to the inside of the heating coil 51. Furthermore, with the closing plates 72 brought close to each other to form a closed state, a voltage is applied to the heating coil 51. As a result, the second mold material M2 is induction-heated by the heating coil 51, thereby performing a heat treatment, and the granular material in the second mold material M2 is melted (second heating step).

[0055] Simultaneously with the second heating step, as shown in Fig. 10, in the first cooling lifting mechanism 6A, the cooling plate 65 is raised in contact with the first mold material M1 while cooling water W is circulating inside the cooling plate 65. As a result, a first cooling process is performed by circulating the cooling water W through the cooling plate 65, and the molten metal in the first mold material M1 is solidified (first cooling step).

[0056] In this way, the casting device 1 can simultaneously perform the heating process in the heating mechanism 5 and the cooling process in the cooling lifting mechanism 6 (first cooling lifting mechanism 6A and second cooling lifting mechanism 6B). Furthermore, by rotating the turntable 4 by 60 degrees, the heating of the third mold material M3 in the heating mechanism 5, the first cooling of the second mold material M2 in the first cooling lifting mechanism 6A, and the second cooling of the first mold material M1 in the second cooling lifting mechanism 6B are simultaneously performed (third heating step and second cooling step).

[0057] Similarly, the turntable 4 is rotated 60 degrees at a time to perform the fourth heating step and the third cooling step, the fifth heating step and the fourth cooling step, and the sixth heating step and the fifth cooling step. Thereafter, when the sixth mold material M6 is positioned in the same position as the first cooling lifting mechanism 6A as shown in Figure 11, the first mold material M1 is positioned in the same position as the heating coil 51 and the heating lifting mechanism 52, so that during the sixth cooling step, only the sixth mold material M6 is cooled by the first cooling lifting mechanism 6A. After the sixth mold material M6 has been sufficiently cooled by the first cooling lifting mechanism 6A, the lid 32 of the chamber 3 is opened, and the mold material M and the 36 metal ingots are removed.

[0058] As described above, according to the casting apparatus 1 of this embodiment, by performing the heat treatment inside the heat-retaining furnace 7, it is possible to suppress a partial temperature drop in the mold material M. In other words, it is possible to make the temperature of the mold material M uniform and ensure the quality of the metal ingot.

[0059] In addition, in the casting device 1 of this embodiment, the heating mechanism 5 heats one mold M inside the heat retention furnace 7, thereby making it possible to simultaneously perform a heating process in which the granular material contained in one mold M is melted into molten metal, and the cooling lifting mechanism 6 cools another mold M, thereby making it possible to simultaneously perform a cooling process in which the molten metal contained in the other mold M is solidified into a metal ingot.

[0060] This allows a large number of metal ingots to be cast by a single vacuum pumping and injecting of inert gas into the chamber 3. In other words, the number of times that the vacuum pumping and inert gas injection operations for the chamber 3 are performed relative to the number of metal ingots to be produced can be reduced, thereby improving the efficiency of casting metal ingots.

[0061] Furthermore, in the casting apparatus 1, the processes required for casting metal ingots can be carried out in parallel by simultaneously performing a heating treatment on one mold material M and a cooling treatment on another mold material M, thereby improving the efficiency of casting metal ingots. In other words, it becomes possible to shorten the time required to cast a large number of metal ingots. [Explanation of symbols]

[0062] 1 Casting equipment (ingot casting equipment) 2 Housing 2a Operation section 3 chambers 4 turntable 4a Opening 5 Heating mechanism 6 Cooling lifting mechanism (cooling mechanism) 6A First cooling lifting mechanism 6B Second cooling lifting mechanism 7 Heat retention furnace 31 main body portion 32 lid portion 32a Window 33 Hinge 41 placement unit 42 rotation mechanism 43 Motor support 44 Motor 45 Shaft member 51 heating coil 52 heating lifting mechanism 53 Cylinder support part 54 Heating lift cylinder 55 Heating rod 56 Block support member 57 Lifting Block 61 Cylinder support part 62 Cooling lift cylinder 63 Cooling rod 64 Cooling block 64a Cooling path 65 Cooling plate 65a Cooling path 71 Furnace main body 72 Closure plate 72a Recess 73 Fixing part 74 Rail member 74a Rail 75 Slide member 76 Connecting rod 77 Actuator M shape material M1~M6 1st shape material ~ 6th shape material Mr. Recess W Cooling water P piping

Claims

1. a chamber including a hollow main body and a lid that can close the main body; a turntable provided at a lower portion within the chamber; a rotation mechanism that rotates the turntable; a heating mechanism including a heating coil disposed within the chamber; a heat-retaining furnace provided around the heating coil; and at least one cooling mechanism provided at a location different from the heating mechanism in a plan view, The turntable is formed with a plurality of placement sections that are made of a conductive material and that can respectively place mold members containing metal particles therein; the rotation mechanism rotates the turntable, thereby varying the positions of the plurality of arrangement units; An ingot casting device that enables simultaneous carrying out a heating process in which granular material contained in one of the mold materials is melted into molten metal by the heating mechanism applying a voltage to the heating coil to inductively heat one of the mold materials inside the heat retention furnace, and a cooling process in which the molten metal contained in the other mold materials is solidified into a metal ingot by the cooling mechanism cooling the other mold materials.

2. The heating coil is wound in a direction rotating around an axis in the vertical direction, 2. The ingot casting apparatus according to claim 1, wherein the heat-retaining furnace comprises a furnace body portion that closes the gaps of the heating coil and the upper surface of the heating coil and opens downward, and a closing plate that closes the opening at the bottom of the furnace body portion.

3. The ingot casting device according to claim 2 , wherein the closure plate is configured to be movable back and forth between a closed state in which the closure plate closes the opening and an open state in which the closure plate opens the opening.

4. the heating mechanism is provided above the turntable within the chamber, a heating lifting mechanism is provided below the turntable at the same location as the heating mechanism in a plan view; The heating mechanism performs a heat treatment in a state where the heating and elevating mechanism raises one of the mold materials inside the heating coil, The ingot casting device according to claim 3 , wherein the closing plate, in the closed state, closes a portion of the opening where the heating and lifting mechanism is not present.

5. the closing plate includes a first closing plate arranged to be movable forward and backward from one side of the heating lifting mechanism, and a second closing plate arranged to be movable forward and backward from the other side of the heating lifting mechanism, 5. The ingot casting apparatus of claim 4, wherein in the closed state, the closing plate closes the heating and lifting mechanism between the first closing plate and the second closing plate, thereby closing a portion of the opening where the heating and lifting mechanism is not present.

6. The cooling mechanism is a cooling lifting mechanism provided below the turntable, The ingot casting device according to claim 1 , wherein the cooling lifting mechanism performs the cooling process while lifting the other mold material.

7. 7. The ingot casting device according to claim 6, wherein the cooling lifting mechanism includes a metal cooling plate and a cooling path formed inside the cooling plate, and performs a cooling process by circulating cooling water through the cooling path while the cooling lifting mechanism lifts the other mold material via the cooling plate.

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