An integrated centrifugal ultra-gravity directional solidification melting and casting system and use method thereof

Abstract

The present invention discloses an integral centrifugal supergravity directional solidification melting and casting system and a method for using the system, comprising an inner furnace shell, a rotating platform is installed at the bottom of the inner furnace shell, a centrifugal motor is arranged at the bottom of the inner furnace shell, the centrifugal motor is drivingly connected to the rotating platform, a centrifugal mold shell is installed at the upper part of the rotating platform, a heat preservation cover is arranged at the position above the rotating platform in the inner furnace shell, a cooling copper ring is connected to the lower part of the heat preservation cover, a plurality of spiral elevators are arranged at the top of the inner furnace shell, the spiral elevators are drivingly connected to a linear rail slide, the lower end of the linear rail slide is connected to the upper end of the heat preservation cover, and a water-cooled copper pipe is also included, and a through hole for the water-cooled copper pipe to pass through is opened on the cooling copper ring. The present invention can finely control the directional solidification process of high-temperature alloys.

Description

Technical Field

[0001] The present invention relates to the field of casting technology, and more specifically, to an integrated centrifugal ultra-gravity directional solidification melting and casting system and a use method thereof. Background Art

[0002] In the existing vacuum investment casting furnace, after pouring the high-temperature alloy solution into the mold, either a power reduction method or a cooling ring is used for directional cooling. Both of these widely used solutions use a directional solidification process to make the crystal grow in a specific direction, thereby enhancing the performance of the material, reducing the defects of the crystal structure, improving the manufacturability of the casting, and improving the thermal stability of the casting. However, the mold is generally placed in a smelting furnace at rest, and the blade direction (or workpiece direction) in the mold can only be along the gravity direction during cooling due to the need for crystal selection.

[0003] In the current vacuum melting furnace, since the rate of directional cooling is still at a relatively low level, the solute in the alloy solution, under the action of normal gravity, will cause local structural unevenness due to thermodynamic convection movement, increasing the possibility of defects. Specifically, for the process of directional solidification under the crystallization plate by uniform or variable speed pulling, many directional solidification simulation results and experimental conclusions show that the solid-liquid phase surface is actually a mushy zone where solid and liquid coexist and conduct convective heat exchange and mass transfer. The greater the temperature gradient, the smaller the width of the mushy zone and the better the crystal structure. However, in the existing process, there are the above-mentioned deficiencies, and the morphological quality of the mushy zone is difficult to reach the level of preparing high-quality crystal structure. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide an integrated centrifugal ultra-gravity directional solidification melting and casting system and a method of using the same.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] The invention discloses an integral centrifugal ultra-gravity directional solidification melting and casting system and a use method thereof, comprising an inner furnace shell, a rotating platform is installed at the bottom of the inner furnace shell, a centrifugal motor is arranged at the bottom of the inner furnace shell, the centrifugal motor is drivingly connected to the rotating platform, a centrifugal mold shell is installed at the upper part of the rotating platform, a heat preservation cover is arranged at a position above the rotating platform in the inner furnace shell, a cooling copper ring is connected to the lower part of the heat preservation cover, a plurality of spiral elevators are arranged at the top of the inner furnace shell, the spiral elevators are drivingly connected to a linear rail slide, the lower end of the linear rail slide is connected to the upper end of the heat preservation cover, and also comprises a water-cooled copper pipe, and a through hole for the water-cooled copper pipe to pass through is opened on the cooling copper ring.

[0007] Furthermore, a rotating seat is arranged at the bottom of the inner furnace shell, the rotating platform is rotatably arranged on the rotating seat, and an ultra-high-speed bearing is arranged between the rotating seat and the rotating platform.

[0008] Furthermore, a plurality of positioning columns are arranged on the rotating platform, a mounting base is arranged at the lower part of the centrifugal mold shell, and a positioning hole matching with the positioning columns is arranged on the mounting base.

[0009] Furthermore, it also includes a lifting motor and a spiral bevel gear commutator. The lifting motor is drive-connected to the spiral bevel gear commutator. There are three spiral elevators, which are evenly distributed. Two of the spiral elevators are drive-connected to the spiral bevel gear commutator through coupling one and coupling two, respectively, and the other spiral elevator is drive-connected to the lifting motor.

[0010] Furthermore, it also includes a clip, which is driven and connected to the centrifugal motor, a notch is provided on the upper part of the clip, a center shaft is installed in the notch, a rotating block is rotatably provided on the center shaft, a limiting column is provided at a position above the rotating block in the notch, a center hole is provided in the mounting base, a clamping block matching the rotating block is provided at the lower part of the center hole, a lever is rotatably connected to the rotating seat, one end of the lever is connected to the lower part of the clip through a joint bearing 1, a cylinder is provided at the lower part of the inner furnace shell, and the cylinder is drivingly connected to the end of the lever away from the clip through a joint bearing 2.

[0011] Furthermore, a linear guide rail is arranged on the inner wall of the inner furnace shell, and the linear guide rail slide is slidably installed on the linear guide rail.

[0012] Furthermore, the centrifugal mold shell includes a casting port, a blade forming cavity, a quenching ring and a spiral section. The casting port is located above the center of the quenching ring, the blade forming cavities are distributed in an array, and a spiral section is connected between the quenching ring and the blade forming cavity.

[0013] A method for using an integrated centrifugal ultra-gravity directional solidification melting and casting system comprises the following steps:

[0014] The spiral elevator pulls the heat preservation cover and cooling copper ring upward;

[0015] The centrifugal mold shell is fixedly mounted on the rotating platform;

[0016] The spiral elevator drives the heat preservation cover and the cooling copper ring to descend, so that the centrifugal mold shell is completely surrounded by the cooling copper ring;

[0017] The inner furnace shell is evacuated to a vacuum. When the required vacuum is reached in the inner furnace shell, the alloy is melted in the crucible. Meanwhile, the heat preservation cover and the rotating platform heat and insulate the centrifugal mold shell.

[0018] After the alloy solution is poured into the centrifugal mold shell through the crucible, the centrifugal motor drives the centrifugal mold shell to rotate at high speed. After reaching a sufficient centrifugal acceleration, the cooling copper ring increases the heat exchange flow rate to perform heat exchange cooling on the centrifugal mold shell.

[0019] The water-cooled copper tube extends into the cooling copper ring to cool the centrifugal mold shell by heat exchange;

[0020] The alloy solution in the centrifugal mold forms a temperature gradient of cold outside and hot inside from the outer circle to the inner circle under the supergravity field;

[0021] After the alloy solution in the centrifugal mold is completely solidified, the centrifugal motor is turned off, the water-cooled copper tube leaves the cooling copper ring, the spiral elevator pulls up the insulation cover and the cooling copper ring, and the centrifugal mold is removed from the rotating platform, and the system proceeds to the next round of melting and casting.

[0022] Preferably, the insulation temperature of the centrifugal mold shell by the insulation cover and the rotating platform is 30-60° C. higher than the melting point of the alloy.

[0023] The beneficial effects of the present invention are: by using a supergravity field, the directional solidification process of the high-temperature alloy is finely controlled, the heat transfer during the solidification process is sufficient, the metallographic structure of the workpiece is more uniform, and the yield rate of the finished product crystal microstructure is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A structural schematic diagram of an integral centrifugal ultra-gravity directional solidification melting and casting system in this embodiment;

[0025] Figure 2 It is a cross-sectional view of the integral centrifugal ultra-gravity directional solidification melting and casting system in this embodiment;

[0026] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0027] Figure 4 This is a schematic diagram of the use status of the integral centrifugal ultra-gravity directional solidification melting and casting system in this embodiment;

[0028] Figure 5 It is a partial structural schematic diagram of the integral centrifugal ultra-gravity directional solidification melting and casting system in this embodiment;

[0029] Figure 6 It is a structural schematic diagram of the centrifugal formwork in this embodiment.

[0030] Figure numerals: 1. inner furnace shell; 2. rotating platform; 3. centrifugal mold shell; 4. cooling copper ring; 5. insulation cover; 6. water-cooled copper tube; 7. crucible; 8. spiral elevator; 9. spiral bevel gear commutator; 10. linear guide rail; 11. centrifugal motor; 12. ultra-high speed bearing; 13. buckle; 14. spherical bearing one; 15. coupling one; 16. coupling two; 17. lifting motor; 18. cylinder; 19. lever; 20. spherical bearing two; 21. linear rail slide; 22. heating coil; 23. mounting base; 24. positioning column; 25. notch; 26. center axis; 27. rotating block; 28. limiting column; 29. ​​block; 30. center hole; 31. rotating seat; 32. casting mouth; 33. blade molding cavity; 34. quenching ring; 35. spiral segment. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] As attached Figure 1 -Attached Figure 6 As shown, an integral centrifugal supergravity directional solidification melting and casting system comprises an inner furnace shell 1, a rotating platform 2 is installed at the bottom of the inner furnace shell 1, a centrifugal motor 11 is arranged at the bottom of the inner furnace shell 1, the centrifugal motor 11 is connected to the rotating platform 2, and the rotating platform 2 can rotate in the inner furnace shell 1 under the drive of the centrifugal motor 11, a centrifugal mold 3 is installed on the upper part of the rotating platform 2, a heat preservation cover 5 is arranged at a position above the rotating platform 2 in the inner furnace shell 1, a cooling copper ring 4 is connected to the outer peripheral position of the lower part of the heat preservation cover 5, and an opening is opened on the heat preservation cover 5 for exposing the pouring gate of the centrifugal mold 3. The heat preservation cover 5 comprises a heating coil 22, an induction heating metal layer, and a graphite insulation layer arranged in sequence from top to bottom, and the rotating platform 2 comprises a heating coil 22, an induction heating metal layer, and a graphite insulation layer arranged in sequence from bottom to top, wherein the heating coil 22 and the graphite insulation layer are both arranged in multiple layers.

[0033] A lifting motor 17, a spiral bevel gear commutator 9, and a spiral elevator 8 are arranged on the top of the inner furnace shell 1. The lifting motor 17 is driven and connected to the spiral bevel gear commutator 9. Three spiral elevators 8 are arranged, and the three spiral elevators 8 are evenly distributed. Two of the spiral elevators 8 are driven and connected to the spiral bevel gear commutator 9 through coupling 1 15 and coupling 2 16, respectively, and the other spiral elevator 8 is driven and connected to the lifting motor 17. The spiral elevator 8 is driven and connected to the operation by the lifting motor 17. The spiral elevator 8 is driven and connected to the linear rail slide 21, and the lower end of the linear rail slide 21 is connected to the upper end of the heat preservation cover 5. The lifting and lowering of the linear rail slide 21 is controlled by the spiral elevator 8, thereby driving the heat preservation cover 5 to rise or fall. When the heat preservation cover 5 rises, the centrifugal mold shell 3 can be placed on the rotating platform 2 or removed from the rotating platform 2. When the heat preservation cover 5 descends, the lower end of the cooling copper ring 4 abuts against the rotating platform 2, and the centrifugal mold shell 3 is located in the area surrounded by the rotating platform 2, the cooling copper ring 4, and the heat preservation cover 5, thereby achieving a better heat preservation effect.

[0034] A side tube is connected to the side of the inner furnace shell 1, and a linear drive mechanism is installed in the side tube. The linear drive mechanism drives and connects a water-cooled copper tube 6, and a through hole for the water-cooled copper tube 6 to pass through is provided on the cooling copper ring 4. Under the action of the linear drive mechanism, the water-cooled copper tube 6 can be away from the cooling copper ring 4 or close to the cooling copper ring 4. When close to the cooling copper ring 4, part of the water-cooled copper tube 6 can pass through the through hole and extend into the cooling copper ring 4. The linear drive mechanism is a hydraulic cylinder or an electric push rod.

[0035] Furthermore, a rotating seat 31 is provided at the bottom of the inner furnace shell 1 , the rotating platform 2 is rotatably provided on the rotating seat 31 , and an ultra-high-speed bearing 12 is provided between the rotating seat 31 and the rotating platform 2 .

[0036] Furthermore, a plurality of positioning columns 24 are provided on the rotating platform 2, a mounting base 23 is installed at the lower part of the centrifugal mold shell 3, the centrifugal mold shell 3 and the mounting base 23 are fixed by bolt connection, and a positioning hole matching with the positioning column 24 is provided on the mounting base 23, and the installation and positioning of the centrifugal mold shell 3 is realized through the cooperation of the positioning hole and the positioning column 24.

[0037] Further, the present smelting and casting system also includes a clip 13, which is connected to the centrifugal motor 11 by driving. The lower end of the clip 13 is hollow, and the drive shaft of the centrifugal motor 11 is inserted into the lower end of the clip 13. The centrifugal motor 11 and the drive shaft are connected by the keyway and the key. The middle section of the clip 13 is located in the rotating platform 2, and the protruding integral key of the middle section of the clip 13 is matched with the groove on the rotating platform 2. The above-mentioned matching is clearance matching to meet the function that the clip 13 can slide up and down while realizing transmission. A notch 25 is arranged on the upper part of the clip 13, and a central shaft 26 is installed in the notch 25. A rotating block 27 is rotatably arranged on the central shaft 26. A torsion spring is connected between the central shaft 26 and the rotating block 27. Under the action of the torsion spring, a part of the rotating block 27 is located outside the notch 25. A limiting column 28 is arranged at the position above the rotating block 27 in the notch 25. A central hole 30 is arranged in the mounting base 23, and a clamping block 29 matching the rotating block 27 is arranged at the lower part of the central hole 30. When the mounting base 23 is placed on the rotating platform 2, the upper end of the clip 13 is inserted into the center hole 30. During the insertion process, the rotating block 27 can be pressed into the notch 25, which will not affect the insertion of the clip 13. After the clip 13 is inserted, the mounting base 23 is positioned by the cooperation of the positioning hole and the positioning column 24, so that the block 29 reaches the lower end of the corresponding rotating block 27. When the clip 13 moves downward, since a part of the rotating block 27 is located outside the notch 25, this part will abut against the block 29. As the clip 13 moves downward, the rotating block 27 will rotate due to the abutment against the block 29 until the rotating block 27 contacts the limiting column 28. At this time, the limiting column 28 limits the rotating block 27, and the rotating block 27 also abuts against the block 29, fixing the mounting base 23 on the rotating platform 2, thereby achieving the fixation between the centrifugal mold shell 3 and the rotating platform 2, so that the centrifugal mold shell 3 can rotate with the rotating platform 2.

[0038] A lever 19 is rotatably connected to the rotating seat 31, one end of the lever 19 is connected to the lower part of the buckle 13 through a joint bearing 14, and a cylinder 18 is arranged at the lower part of the inner furnace shell 1, and the cylinder 18 is drivingly connected to the end of the lever 19 away from the buckle 13 through a joint bearing 20.

[0039] Furthermore, a linear guide 10 is provided on the inner wall of the inner furnace shell 1, and the linear guide 10 is vertically arranged. The linear guide slide 21 is slidably installed on the linear guide 10 to ensure the vertical movement of the linear guide slide 21 so that the insulation cover 5 will not deflect when lifting.

[0040] Furthermore, the present melting and casting system further comprises a crucible 7 located at the upper inner side of the inner furnace shell 1. The crucible 7 has an induction heating coil. The crucible 7 should be mounted on a controllable robotic arm to realize the pouring of the alloy solution.

[0041] Furthermore, the centrifugal mold shell 3 includes a casting port 32, a blade forming cavity 33, a quenching ring 34 and a spiral section 35. The casting port 32 is located above the center of the quenching ring 34. The blade forming cavity 33 is horizontally arranged and arrayed in the same plane. The spiral section 35 is connected between the quenching ring 34 and the blade forming cavity 33. The structural design of the centrifugal mold shell 3 can realize seeding and crystal selection of directional solidification.

[0042] A method for using an integrated centrifugal ultra-gravity directional solidification melting and casting system comprises the following steps:

[0043] like Figure 4 As shown, the spiral elevator 8 pulls the heat-insulating cover 5 and the cooling copper ring 4 up a certain distance, leaving enough space for the centrifugal mold shell 3 to be placed on the rotating platform 2.

[0044] The centrifugal mold shell 3 is fixedly installed on the rotating platform 2. Specifically, the centrifugal mold shell 3 is pre-fixed with the mounting base 23 by bolts and placed on the rotating platform 2 together. The rotating block 27 on the clip 13 can enter the center hole 30 from the gap between the blocks 29 and is positioned by the cooperation of the positioning holes and the positioning columns 24 on the mounting base 23. At this time, the rotating block 27 is correspondingly located above the block 29; the joint bearing 20 is actuated to drive the lever 19 to rotate counterclockwise, and the lever 19 pulls the clip 13 to move downward, and the clip 13 drives the rotating block 27 to descend, and the rotating block 27 resists the block 29 to rotate, and the block 29 rotates until it resists the limit column 28 and stops. At this time, the rotating block 27 resists the block 29 to fix the mounting base 23 on the rotating platform 2, thereby completing the fixation between the rotating platform 2 and the centrifugal mold shell 3.

[0045] like Figure 2 As shown, the spiral elevator 8 drives the heat preservation cover 5 and the cooling copper ring 4 to descend, so that the centrifugal mold shell 3 is completely surrounded by the cooling copper ring 4; the water-cooling copper pipes 6 on both sides are in a non-extended state, and the circulation rate of the cooling copper ring 4 is low.

[0046] The inner furnace shell 1 is evacuated to a vacuum state. When the inner furnace shell 1 reaches a required vacuum state, the alloy is melted in the crucible 7. Meanwhile, the heat-insulating cover 5 and the rotating platform 2 heat and insulate the centrifugal mold shell 3.

[0047] After the alloy solution is poured into the centrifugal mold 3 through the crucible 7, the centrifugal motor 11 drives the centrifugal mold 3 to rotate at high speed. After reaching a sufficient centrifugal acceleration, the cooling copper ring 4 increases the heat exchange flow rate to perform heat exchange cooling on the quenching ring 34 on the centrifugal mold 3; the heating coil 22 is gradually closed from the outer layer to the inner layer.

[0048] like Figure 1 As shown, the water-cooled copper tube 6 extends into the cooling copper ring 4 to perform heat exchange cooling on the centrifugal mold shell 3.

[0049] The alloy solution in the centrifugal mold shell 3 forms a temperature gradient of cold outside and hot inside from the outer circle to the inner circle under the supergravity field, and the cooling speed and gradient range can be controlled and adjusted.

[0050] When the alloy solution in the blade forming cavity 33 in the centrifugal mold shell 3 is completely solidified, that is, after the blade segment is formed, the heating coil 22 is turned off, the centrifugal motor 11 is turned off, the water-cooled copper tube 6 leaves the cooling copper ring 4, and the spiral elevator 8 pulls up the insulation cover 5 and the cooling copper ring 4. After the rotating platform 2 stops completely, the joint bearing 20 is actuated to loosen the buckle 13, release the fixation between the centrifugal mold shell 3 and the rotating platform 2, remove the centrifugal mold shell 3 from the rotating platform 2, and the system proceeds to the next round of melting and casting.

[0051] Preferably, the insulation temperature of the centrifugal mold shell 3 by the heat-insulating cover 5 and the rotating platform 2 is 30-60° C. higher than the melting point of the alloy, preferably 50° C. higher than the melting point of the alloy.

[0052] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An integrated centrifugal high gravity directional solidification melting and casting system, characterized in that: The invention comprises an inner furnace shell (1), a rotating platform (2) is installed at the bottom of the inner furnace shell (1), a centrifugal motor (11) is arranged at the bottom of the inner furnace shell (1), the centrifugal motor (11) is connected to the rotating platform (2) by driving, a centrifugal mold shell (3) is installed on the upper part of the rotating platform (2), a heat preservation cover (5) is arranged at a position above the rotating platform (2) in the inner furnace shell (1), a cooling copper ring (4) is connected to the lower part of the heat preservation cover (5), and a plurality of spiral elevators (8) are arranged on the top of the inner furnace shell (1), and the spiral elevators (8) are connected to the wire rail by driving. The slide seat (21) is connected to the upper end of the heat preservation cover (5) at the lower end of the linear rail slide seat (21), and also includes a water-cooled copper tube (6). The cooling copper ring (4) is provided with a through hole for the water-cooled copper tube (6) to pass through; a plurality of positioning columns (24) are arranged on the rotating platform (2), a mounting base (23) is installed at the lower part of the centrifugal mold shell (3), and a positioning hole matching with the positioning column (24) is arranged on the mounting base (23); and a buckle (13) is also included, the buckle (13) is connected to the centrifugal motor (11) for driving, and the upper part of the buckle (13) is provided with A notch (25) is provided, a center shaft (26) is installed in the notch (25), a rotating block (27) is rotatably provided on the center shaft (26), a limiting column (28) is provided in the notch (25) at a position above the rotating block (27), a center hole (30) is provided in the mounting base (23), a clamping block (29) matched with the rotating block (27) is provided at the lower part of the center hole (30), a lever (19) is rotatably connected to the rotating seat (31), one end of the lever (19) is connected to the buckle (13) through a joint bearing (14) The lower part of the inner furnace shell (1) is connected, and a cylinder (18) is arranged at the lower part of the inner furnace shell (1), and the cylinder (18) is drivingly connected to the end of the lever (19) away from the buckle (13) through the joint bearing 2 (20); the centrifugal mold shell (3) includes a casting port (32), a blade forming cavity (33), a quenching ring (34) and a spiral section (35), the casting port (32) is located above the center of the quenching ring (34), the blade forming cavities (33) are arranged in an array, and a spiral section (35) is connected between the quenching ring (34) and the blade forming cavity (33).

2. The integrated centrifugal ultra-gravity directional solidification melting and casting system according to claim 1, characterized in that: A rotating seat (31) is arranged at the bottom of the inner furnace shell (1), a rotating platform (2) is rotatably arranged on the rotating seat (31), and an ultra-high-speed bearing (12) is arranged between the rotating seat (31) and the rotating platform (2).

3. The integrated centrifugal ultra-gravity directional solidification melting and casting system according to claim 1, characterized in that: The invention also comprises a lifting motor (17) and a spiral bevel gear commutator (9), wherein the lifting motor (17) is drivingly connected to the spiral bevel gear commutator (9), and three spiral lifters (8) are arranged, and the three spiral lifters (8) are evenly distributed, wherein two spiral lifters (8) are drivingly connected to the spiral bevel gear commutator (9) through coupling 1 (15) and coupling 2 (16), respectively, and the other spiral lifter (8) is drivingly connected to the lifting motor (17).

4. The integrated centrifugal ultra-gravity directional solidification melting and casting system according to claim 1, characterized in that: A linear guide rail (10) is arranged on the inner wall of the inner furnace shell (1), and a linear guide rail slide seat (21) is slidably mounted on the linear guide rail (10).

5. A method for using an integrated centrifugal ultra-gravity directional solidification melting and casting system, characterized in that: The method comprises the following steps: The spiral elevator (8) pulls the heat preservation cover (5) and the cooling copper ring (4) upward; The centrifugal mold shell (3) is fixedly mounted on the rotating platform (2); The spiral elevator (8) drives the heat preservation cover (5) and the cooling copper ring (4) to descend, so that the centrifugal mold shell (3) is completely surrounded by the cooling copper ring (4); The inner furnace shell (1) is subjected to vacuum treatment. After the inner furnace shell (1) reaches a required vacuum, the alloy is melted in the crucible (7), and at the same time, the heat preservation cover (5) and the rotating platform (2) heat and preserve the centrifugal mold shell (3); After the alloy solution is poured into the centrifugal mold shell (3) through the crucible (7), the centrifugal motor (11) drives the centrifugal mold shell (3) to rotate at a high speed. After reaching a sufficient centrifugal acceleration, the cooling copper ring (4) increases the heat exchange flow rate to perform heat exchange cooling on the centrifugal mold shell (3); The water-cooled copper tube (6) extends into the cooling copper ring (4) to perform heat exchange cooling on the centrifugal mold shell (3); The alloy solution in the centrifugal mold shell (3) forms a temperature gradient of cold outside and hot inside from the outer circle to the inner circle under the supergravity field; After the alloy solution in the centrifugal mold shell (3) is completely solidified, the centrifugal motor (11) is turned off, the water-cooled copper tube (6) is removed from the cooling copper ring (4), the spiral elevator (8) pulls up the heat-insulating cover (5) and the cooling copper ring (4), and the centrifugal mold shell (3) is removed from the rotating platform (2), and the system proceeds to the next round of melting and casting.

6. The method for using the integrated centrifugal ultra-gravity directional solidification melting and casting system according to claim 5, characterized in that: The heat preservation temperature of the centrifugal mold shell (3) by the heat preservation cover (5) and the rotating platform (2) is 30-60° C. higher than the melting point of the alloy.

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