A thin-wall casting process and equipment tooling

Abstract

The present application relates to the technical field of casting process and equipment, and discloses a thin-wall casting equipment tool, which comprises a core and a traveling wave electromagnetic module arranged coaxially and forming a surface of a casting, wherein the core is in the shape of a hollow cylinder; the traveling wave electromagnetic module comprises a hollow annular protective shell, and further comprises a traveling wave electromagnetic winding coil arranged in the protective shell; an upper plate and a lower plate are respectively arranged at the upper end and the lower end of the traveling wave electromagnetic module; the upper plate and the lower plate are both provided with through holes penetrating through the upper end and the lower end; and a sprue plate is arranged on the top end surface of the upper plate; and the alloy solution is moved during the alloy solution pouring process by the traveling wave electromagnetic module, so that the alloy solution is fully mixed, and the cold shut phenomenon is avoided.

Description

A casting process and equipment for thin-walled castings Technical Field

[0001] This invention relates to the technical field of casting processes and equipment, specifically to a casting process and equipment tooling for thin-walled castings. Background Technology

[0002] Currently, many structural components in high-precision technology fields such as aviation, aerospace, military industry, and defense weaponry are thin-walled castings with constant outer diameter. However, existing casting methods for thin-walled alloy castings with constant outer diameter are mainly differential pressure casting and anti-gravity casting, which significantly increase costs. Furthermore, in practical applications, due to the small wall thickness, the alloy experiences uneven temperature distribution during the drawing process, leading to difficulties in feeding and gas expulsion, ultimately resulting in numerous structural defects such as shrinkage porosity and shrinkage cavities in the alloy castings. Simultaneously, the uneven temperature field also causes solute segregation, resulting in significant specific gravity segregation in the alloy castings. Another problem is the drop in melt temperature, causing defects that prevent complete forming. While increasing the pouring temperature and mold preheating temperature can resolve this issue, it leads to a deterioration in the component's microstructure and properties. Therefore, the traditional semi-continuous casting method for thin-walled alloy castings with constant outer diameter has significant limitations. Summary of the Invention

[0003] The purpose of this invention is to provide a tooling for a thin-walled casting equipment that, by using a traveling wave electromagnetic module to drive the movement of the alloy solution during the casting process, ensures thorough mixing of the alloy solution and avoids cold shut-off, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a tooling for a thin-walled casting equipment, comprising a core and a traveling wave electromagnetic module arranged coaxially to form the surface of the casting, wherein the core is in the shape of a hollow cylinder; the traveling wave electromagnetic module comprises a hollow annular protective shell, and further comprises a traveling wave electromagnetic winding coil disposed within the protective shell, wherein an upper plate and a lower plate are respectively provided at the upper and lower ends of the traveling wave electromagnetic module, and both the upper plate and the lower plate are provided with through holes of the same radius penetrating the upper and lower ends, and a sprue plate is provided on the top surface of the upper plate.

[0005] Preferably, the non-metallic sprue is disc-shaped, with a heat insulation layer welded or screwed to the top of the upper plate at the bottom of the sprue, and a through hole in the middle of the sprue. The outer diameter of the core is smaller than the diameter of the through hole on the sprue, and the distance between the side of the through hole on the sprue and the outer side of the core is the same as the thickness of the casting or the thickness of the casting is slightly smaller than the distance between the side of the through hole on the sprue and the outer side of the core.

[0006] Preferably, a water tank plate is provided on the outer circumference of the traveling wave electromagnetic module. The upper end of the water tank plate is connected to the upper plate through a sealing flange, and the lower end of the water tank plate is integrally connected to the lower plate. The water tank plate is located on the outer side of the lower plate. A water storage tank is formed in the area between the water tank plate and the protective shell of the traveling wave electromagnetic module. A water inlet pipe communicating with the outside is provided on the outer side of the water tank plate. Multiple water supply pipes with an L-shaped cross-section are provided inside the lower plate. Each water supply pipe is arranged radially along the lower plate. The multiple water supply pipes are arranged in a ring at equal intervals. A solenoid valve is provided near the core end of the water supply pipe. A water spray ring extends downward from the bottom end of the lower plate. The inner diameter of the water spray ring is the same as the radius of the through hole of the lower plate. A nozzle communicating with the solenoid valve is provided on the inner circumference of the water spray ring.

[0007] Preferably, the outer side of the core is provided with a boss or groove for forming reinforcing ribs on the casting, and the groove is arranged along the center line of the core; a hollow cooling cavity extends upward from the bottom of the core, and multiple annular array cooling baffles are provided in the cooling cavity. The cooling cavity divides the core into two parts: a cooling plate ring and a heat insulation plate ring. The cooling baffles fix the cooling plate ring and the heat insulation plate ring together. Multiple cooling water inlets are provided at the top of the cooling cavity for connecting the cooling cavity to the outside through the heat insulation plate ring. The center line of the cooling water inlets is flush with the top surface of the upper plate. Multiple cooling water outlets are provided at the bottom of the cooling cavity for connecting the cooling cavity to the outside through the heat insulation plate ring. The number of cooling water inlets and outlets are the same and evenly spaced in an annular array within the heat insulation plate ring. Interface valves are provided at both the cooling water inlet and outlet interfaces.

[0008] Preferably, an internal cooling pipe assembly is provided within the area enclosed by the core. The internal cooling pipe assembly includes an internal cooling water inlet pipe, which is coaxially arranged with the core. Multiple branch internal cooling water inlet pipes are provided at the top of the internal cooling water inlet pipe, and these branch internal cooling water inlet pipes are distributed in a ring around the outside of the internal cooling water inlet pipe. A ring-shaped temporary storage pipe is provided at one end of each branch internal cooling water inlet pipe, and multiple internal cooling water delivery pipes that cooperate with the cooling water inlet are provided outside the temporary storage pipe. Multiple internal cooling pipe recovery branch pipes are provided on the outer side of the middle of the internal cooling water inlet pipe, and these internal cooling pipe recovery branch pipes are distributed in a ring around the outside of the internal cooling water inlet pipe. One end of each internal cooling pipe recovery branch pipe is connected to the cooling water outlet. The internal cooling pipe assembly also includes a sleeve rod that wraps around the internal cooling water inlet pipe. Multiple water outlet pipes are provided inside the sleeve rod, and each water outlet pipe is connected to the internal cooling pipe recovery branch pipe. A base plate is provided at the lower end of the core. The base plate is disc-shaped, and a cooling pipe through hole is provided in the middle of the base plate to facilitate the passage of the internal cooling pipe assembly. A bolt for connecting to the water spray ring is provided at the bottom end of the base plate.

[0009] Preferably, the top of the upper plate is sealed with an insulation shell via a flange. The insulation shell has a U-shaped cross-section and includes a cylindrical outer shell and an upper shell. The outer shell of the insulation shell is provided with a heating coil winding and a heat insulation layer from the outside to the inside. The area between the insulation shell and the upper plate forms a heating cavity. A pouring hole penetrating through the inside and outside is opened on the side of the outer shell of the insulation shell. A pouring pipe is provided at the pouring hole, and one end of the pouring pipe is connected to the pouring plate. A pressure gauge and an air extraction pipe are provided at the top of the upper shell. An adjustable passage hole is opened in the middle of the upper shell to facilitate the passage of the core.

[0010] Preferably, an internal heating module is provided within the area enclosed by the core, and multiple annular silicon carbide rods are provided on the outer side of the internal heating module. A lifting column for raising or lowering the internal heating module is provided at the top of the internal heating module. The upper part of the lifting column passes through an adjustable through hole in the middle of the upper housing. A sealing module for sealing the upper port of the core is provided on the side of the lifting column near the internal heating module.

[0011] Preferably, the sealing module includes multiple hydraulic columns arranged circumferentially on the outer side of the lifting column, the hydraulic columns being arranged in a ring around the outer side of the lifting column, and a sealing sleeve that wraps around the hydraulic columns. The sealing sleeve is disc-shaped and hollow inside. A pressure plate with a triangular cross-section is provided at the output end of the hydraulic column. The module also includes a support plate with a fan-shaped cross-section, which is arranged circumferentially around the inner side of the sealing sleeve. The support plate is fixedly connected to the pressure plate at the end away from the sealing sleeve.

[0012] Preferably, the centerline of the cooling water inlet is flush with the top surface of the lower plate, and a two-phase or three-phase rotating magnetic field winding is provided on the outside of the traveling wave electromagnetic module.

[0013] A thin-walled casting process, preferably, includes the following steps:

[0014] Step 1: Melting: Melt the alloy until it is in a molten state and mix it thoroughly and evenly;

[0015] Step 2: Mold preparation: Lower the chassis to its lowest position, then install the core onto the chassis, and then put the core back into the insulation shell;

[0016] Step 3: Preheating: The core is heated by the internal heating module;

[0017] Step 4: Casting: The alloy solution is smoothly transported to the gate plate through the casting pipe. Then, under the combined action of gravity and the traveling wave electromagnetic module, the alloy solution adheres to the outer surface of the core.

[0018] Step 5: Exhaust: Extend the hydraulic column in the sealing module of the lifting column so that the sealing module seals the core. Then, reduce the air pressure in the heating chamber through the exhaust pipe to exhaust the gas in the alloy solution state.

[0019] Step 6: Pressurization: Nitrogen gas is injected into the heating chamber through the extraction pipe to pressurize it, so that the molten metal can be quickly fused and compacted;

[0020] Step 7: Removal: The inner and outer sides of the core are cooled simultaneously through the water tank and internal cooling pipe assembly, while the height of the chassis is lowered to remove the casting.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. By thoroughly mixing the alloy solution with traveling wave magnetic field and rotating magnetic field, the occurrence of cold shut-off can be avoided;

[0023] 2. The core is heated by an internal heating module to reduce the temperature difference between the core and the alloy solution, thus avoiding the deterioration of the microstructure and properties of the casting components;

[0024] 3. By generating eddy currents in the molten metal through heating coil windings, the molten metal is heated. Then, combined with a rotating magnetic field, the heat is evenly distributed in the molten metal, thereby reducing the problem of segregation that easily occurs in alloy solute distribution. Attached Figure Description

[0025] Figure 1 is an isometric view of the casting tooling of the present invention;

[0026] Figure 2 is a front view of the casting tooling of the present invention;

[0027] Figure 3 is a cross-sectional view of the casting tooling of the present invention;

[0028] Figure 4 is a top view of the casting tooling of the present invention;

[0029] Figure 5 is an isometric cross-sectional view of the casting tooling of the present invention.

[0030] Figure 6 is a schematic diagram of the internal cooling pipe assembly of the present invention;

[0031] Figure 7 is a cross-sectional view of the core of the present invention;

[0032] Figure 8 is a front view of the core of the present invention;

[0033] Figure 9 is a cross-sectional view of the core DD of the present invention;

[0034] Figure 10 is a partially enlarged schematic diagram of the core of the present invention;

[0035] Figure 11 is a cross-sectional schematic diagram of the sealing module of the present invention;

[0036] Figure 12 is a schematic diagram of the sealing module of the present invention.

[0037] In the diagram: 1. Insulation shell; 101. Heat insulation layer; 102. Heating coil winding; 2. Lifting column; 201. Sealing module; 202. Ring-shaped silicon carbide rod; 203. Support plate; 204. Hydraulic column; 205. Pressure plate; 206. Sealing sleeve; 3. Pressure gauge; 4. Air extraction pipe; 5. Upper plate; 6. Water inlet pipe; 7. Water tank plate; 701. Water storage tank; 702. Water supply pipe; 8. Chassis; 9. Cooling pipe assembly; 901. Cooling water inlet pipe; 902. Water outlet pipe; 903. Internal cooling pipe recovery branch pipe; 904. Diverting internal cooling water inlet pipe; 905. Temporary storage pipe; 906. Internal cooling water supply pipe; 10. Core; 10. Cooling water inlet; 1001. Cooling water outlet; 1002. Cooling plate ring; 1003. Heat insulation plate ring; 1004. Cooling cavity; 1005. Cooling partition; 1006. Heating cavity; 11. Internal heating module; 12. Sprue plate; 13. Traveling wave electromagnetic module; 14. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0039] As shown in Figures 1-5, Figure 1 is an isometric view of the casting fixture of the present invention; Figure 2 is a front view of the casting fixture of the present invention; Figure 3 is a cross-sectional view of the casting fixture of the present invention; Figure 4 is a top view of the casting fixture of the present invention; and Figure 5 is an isometric view of the cross-sectional section of the casting fixture of the present invention.

[0040] In one embodiment, a tooling for a thin-walled casting equipment includes a core 10 and a traveling wave electromagnetic module 14 that form the surface of the casting and are coaxially arranged. The core 10 is in the shape of a hollow cylinder. The traveling wave electromagnetic module 14 includes a hollow annular protective shell and a traveling wave electromagnetic winding coil disposed inside the protective shell. An upper plate 5 and a lower plate are respectively provided at the upper and lower ends of the traveling wave electromagnetic module 14. Both the upper plate 5 and the lower plate are provided with through holes of the same radius that penetrate through the upper and lower ends. A gating plate 13 is provided on the top surface of the upper plate 5.

[0041] The non-metallic gating plate 13 is disc-shaped. A heat insulation layer is welded or screwed to the top of the upper plate 5 at the bottom of the gating plate 13. A through hole is opened in the middle of the gating plate 13. The outer diameter of the core 10 is smaller than the diameter of the through hole on the gating plate 13. The distance between the side of the through hole on the gating plate 13 and the outer side of the core 10 is the same as the thickness of the casting or the thickness of the casting is slightly smaller than the distance between the side of the through hole on the gating plate 13 and the outer side of the core 10.

[0042] In this embodiment, the molten metal is poured into the casting pan 13, and then the alloy solution flows along the gap between the core 10 and the protective shell of the traveling wave electromagnetic module 14. The width of the gap between the core 10 and the protective shell of the traveling wave electromagnetic module 14 is the thickness of the casting. The traveling wave magnetic field generated by the traveling wave electromagnetic module 14 makes the alloy solution adhere tightly to the outer surface of the core 10, thereby saving sand molds and reducing costs.

[0043] In one embodiment, a water tank plate 7 is provided on the outer circumference of the traveling wave electromagnetic module 14. The upper end of the water tank plate 7 is connected to the upper plate 5 through a sealing flange, and the lower end of the water tank plate 7 is integrally connected to the lower plate. The water tank plate 7 is located on the outer side of the lower plate. A water storage tank 701 is formed in the area between the water tank plate 7 and the protective shell of the traveling wave electromagnetic module 14. A water inlet pipe 6 communicating with the outside is provided on the outer side of the water tank plate 7. Multiple water supply pipes 702 with L-shaped cross-sections are provided in the lower plate. Each water supply pipe 702 is arranged radially along the lower plate. The multiple water supply pipes 702 are arranged in a ring at equal intervals. A solenoid valve is provided at the end of the water supply pipe 702 near the core 10. A water spray ring extends downward from the bottom end of the lower plate. The inner diameter of the water spray ring is the same as the radius of the through hole of the lower plate. A nozzle communicating with the solenoid valve is provided on the inner circumference of the water spray ring.

[0044] In this embodiment, the water in the water tank 701 is used to cool the traveling wave electromagnetic module 14. At the same time, the water in the water tank 701 is guided to the nozzle of the spray ring through the water pipe 702 to cool the casting. The exhaust gas generated by cooling is discharged through the lower end.

[0045] As shown in Figures 6-10, Figure 6 is a schematic diagram of the internal cooling pipe assembly of the present invention; Figure 7 is a cross-sectional view of the core of the present invention; Figure 8 is a front view of the core of the present invention; Figure 9 is a cross-sectional view of the core of the present invention (DD section); and Figure 10 is a partially enlarged schematic diagram of the core of the present invention.

[0046] In one embodiment, the outer side of the core 10 is provided with a boss or groove for forming reinforcing ribs on the casting, and the groove is arranged along the center line of the core 10; a hollow cooling cavity 1005 extends upward from its bottom end inside the core 10, and a plurality of annular array cooling baffles 1006 are provided in the cooling cavity 1005. The cooling cavity 1005 divides the core 10 into two parts: a cooling plate ring 1003 and a heat insulation plate ring 1004. The cooling baffles 1006 fix the cooling plate ring 1003 and the heat insulation plate ring 1004 together. A tool for forming reinforcing ribs is provided at the top of the cooling cavity 1005. Multiple cooling water inlets 1001 are provided at the bottom of the cooling chamber 1005 to connect to the outside through the heat insulation ring 1004. The center line of the cooling water inlets 1001 is flush with the top surface of the upper plate 5. Multiple cooling water outlets 1002 are provided at the bottom of the cooling chamber 1005 to connect to the outside through the heat insulation ring 1004. The number of cooling water inlets 1001 and cooling water inlets 1002 are the same and they are evenly spaced in a ring array within the heat insulation ring 1004. Interface valves are provided at the interfaces of the cooling water inlets 1001 and cooling water outlets 1002.

[0047] An internal cooling pipe assembly 9 is provided within the area enclosed by the core 10. The internal cooling pipe assembly 9 includes an internal cooling water inlet pipe 901, which is coaxially arranged with the core 10. Multiple branch internal cooling water inlet pipes 904 are provided at the top of the internal cooling water inlet pipe 901, and these branch internal cooling water inlet pipes 904 are arranged in a ring around the outside of the internal cooling water inlet pipe 901. An annular temporary storage pipe 905 is provided at one end of each branch internal cooling water inlet pipe 904, and multiple internal cooling water delivery pipes 906 that cooperate with the cooling water inlet 1001 are provided outside the temporary storage pipe 905. Multiple internal cooling water delivery pipes 906 are provided on the outer side of the middle of the internal cooling water inlet pipe 901. The internal cooling pipe recovery branch pipe 903 is distributed in a ring around the outside of the internal cooling water inlet pipe 901, and one end of the internal cooling pipe recovery branch pipe 903 is connected to the cooling water outlet 1002; the internal cooling pipe assembly 9 also includes a sleeve rod that wraps around the internal cooling water inlet pipe 901, and multiple water outlet pipes 902 are provided inside the sleeve rod, each of which is connected to the internal cooling pipe recovery branch pipe 903; a base plate 8 is provided at the lower end of the core 10, the base plate 8 is disc-shaped, a cooling pipe through hole is provided in the middle of the base plate 8 to facilitate the passage of the internal cooling pipe assembly 9, and a bolt connected to the water spray ring is provided at the bottom end of the base plate 8.

[0048] The top of the upper plate 5 is sealed with a flange to the heat insulation shell 1. The heat insulation shell 1 has a "U" shaped cross-section and includes a cylindrical outer shell and an upper shell. The outer shell of the heat insulation shell 1 is provided with a heating coil winding 102 and a heat insulation layer 101 from the outside to the inside. The area between the heat insulation shell 1 and the upper plate 5 forms a heating chamber 11. A pouring hole penetrating inside and outside is opened on the side of the outer shell of the heat insulation shell 1. A pouring pipe is provided at the pouring hole, and one end of the pouring pipe is connected to the pouring plate 13. A pressure gauge 3 and an air extraction pipe 4 are provided at the top of the upper shell. An adjustable passage hole is opened in the middle of the upper shell to facilitate the passage of the core 10.

[0049] An inner heating module 12 is provided within the area enclosed by the core 10. Multiple annular silicon carbide rods 202 are provided on the outer side of the inner heating module 12. A lifting column 2 for raising or lowering the inner heating module 12 is provided at the top of the inner heating module 12. The upper part of the lifting column 2 passes through an adjustable through hole in the middle of the upper housing. A sealing module 201 for sealing the upper port of the core 10 is provided on the side of the lifting column 2 near the inner heating module 12.

[0050] In this embodiment, cooling water is introduced into the branch internal cooling water inlet pipe 904 through the internal cooling water inlet pipe 901 of the internal cooling pipe assembly 9, and then the cooling water is finally introduced into the cooling chamber 1005 of the core 10 through the annular temporary storage pipe 905 and the internal cooling water supply pipe 906. The water vapor generated by cooling is introduced into the internal cooling water inlet pipe 901 through the internal cooling pipe recovery branch pipe 903 and finally discharged into the atmosphere, so as to prevent the generated water vapor from rising and prevent water vapor from entering the upper space of the core 10 and affecting the working life of the internal heating module 12.

[0051] The sealing module 201 includes a plurality of hydraulic columns 204 arranged circumferentially on the outer side of the lifting column 2. The hydraulic columns 204 are arranged in a ring around the outer side of the lifting column 2. It also includes a sealing sleeve 206 that wraps the hydraulic columns 204. The sealing sleeve 206 is disc-shaped and hollow inside. A pressure plate 205 with a triangular cross-section is provided at the output end of the hydraulic column 204. It also includes a support plate 203 with a fan-shaped cross-section. The support plate 203 is arranged circumferentially around the inner side of the sealing sleeve 206. The end of the support plate 203 away from the sealing sleeve 206 is fixedly connected to the pressure plate 205.

[0052] The centerline of the cooling water inlet 1001 is flush with the top surface of the lower plate, and a two-phase or three-phase rotating magnetic field winding is provided on the outside of the traveling wave electromagnetic module 14.

[0053] In this embodiment, by extending the hydraulic column 204, the sealing sleeve 206 made of elastic material is expanded outward until it is the same as the inner diameter of the core 10, thus sealing the core 10. Then, the air pressure in the heating chamber 11 is reduced through the air extraction pipe 4, thereby achieving the purpose of removing air bubbles from the alloy solution.

[0054] A thin-walled casting process includes the following steps:

[0055] Step 1: Melting: Melt the alloy until it is in a molten state and mix it thoroughly and evenly;

[0056] Step 2: Mold preparation: Lower the base plate 8 to its lowest position, then install the core 10 on the base plate 8, and then put the core 10 back into the insulation shell 1;

[0057] Step 3: Preheating: The core 10 is heated by the internal heating module 12;

[0058] Step 4: Casting: The alloy solution is smoothly transported to the gating plate 13 through the casting pipe. Then, under the combined action of gravity and traveling wave electromagnetic module 14, the alloy solution adheres to the outer surface of the core 10.

[0059] Step 5: Exhaust: Extend the hydraulic column in the sealing module of the lifting column 2 so that the sealing module seals the core. Then, reduce the air pressure in the heating chamber 11 through the exhaust pipe 4 to exhaust the gas in the alloy solution state.

[0060] Step 6: Pressurization: Nitrogen gas is injected into the heating chamber through the extraction pipe 4 to pressurize it, so that the molten metal can be quickly fused and compacted;

[0061] Step 7: Removal: Cool the inner and outer sides of the core 10 simultaneously through the water tank 701 and the internal cooling pipe assembly 9, while lowering the height of the chassis 8 to remove the casting.

[0062] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A tooling fixture for thin-walled casting equipment, comprising a core and a traveling wave electromagnetic module arranged coaxially to form the surface of the casting, characterized in that: The core is a hollow cylindrical shape; the traveling wave electromagnetic module includes a hollow annular protective shell and a traveling wave electromagnetic winding coil disposed within the protective shell. An upper plate and a lower plate are respectively provided at the upper and lower ends of the traveling wave electromagnetic module. Both the upper and lower plates have through holes of the same radius penetrating both ends. A sprue plate is provided on the top surface of the upper plate. The outer side of the core has bosses or grooves for forming reinforcing ribs on the casting, with the grooves arranged along the centerline of the core. Inside the core, a hollow cooling cavity extends upwards from its bottom end, and multiple annular arrays of cooling baffles are disposed within the cooling cavity. The cooling chamber divides the core into two parts: a cooling plate ring and a heat insulation plate ring. A cooling baffle plate fixes the cooling plate ring and the heat insulation plate ring together. At the top of the cooling chamber, there are multiple cooling water inlets that pass through the heat insulation plate ring to connect the cooling chamber to the outside. The center line of the cooling water inlet is flush with the top surface of the upper plate. At the bottom of the cooling chamber, there are multiple cooling water outlets that pass through the heat insulation plate ring to connect the cooling chamber to the outside. The number of cooling water inlets and outlets are the same and they are evenly spaced in a ring array inside the heat insulation plate ring. Interface valves are provided at both the cooling water inlet and cooling water outlet interfaces.

2. The tooling for thin-walled casting equipment according to claim 1, characterized in that: The sprue is made of non-metallic material and is disc-shaped. A heat insulation layer is welded or screwed to the top of the upper plate at the bottom of the sprue. A through hole is opened in the middle of the sprue. The outer diameter of the core is smaller than the diameter of the through hole on the sprue. The distance between the side of the through hole on the sprue and the outer side of the core is the same as the thickness of the casting or the thickness of the casting is smaller than the distance between the side of the through hole on the sprue and the outer side of the core.

3. The tooling for thin-walled casting equipment according to claim 2, characterized in that: The traveling wave electromagnetic module has a water tank plate on its outer circumference. The upper end of the water tank plate is connected to the upper plate through a sealing flange, and the lower end of the water tank plate is integrally connected to the lower plate. The water tank plate is located on the outer side of the lower plate. The area between the water tank plate and the protective shell of the traveling wave electromagnetic module forms a water storage tank. A water inlet pipe communicating with the outside is provided on the outer side of the water tank plate. Multiple water delivery pipes with an L-shaped cross-section are provided inside the lower plate. Each water delivery pipe is arranged radially along the lower plate. The multiple water delivery pipes are arranged in a ring at equal intervals. A solenoid valve is provided near the core end of the water delivery pipe. A water spray ring extends downward from the bottom end of the lower plate. The inner diameter of the water spray ring is the same as the radius of the through hole in the lower plate. A nozzle communicating with the solenoid valve is provided circumferentially on the inner side of the water spray ring.

4. The tooling for thin-walled casting equipment according to claim 3, characterized in that: The core area is equipped with an internal cooling pipe assembly, which includes an internal cooling water inlet pipe arranged coaxially with the core. Multiple branch internal cooling water inlet pipes are located at the top of the internal cooling water inlet pipe, arranged in a ring around its outer side. A ring-shaped temporary storage pipe is located at one end of each branch internal cooling water inlet pipe, and multiple internal cooling water delivery pipes that mate with the cooling water inlet are located outside the temporary storage pipe. Multiple internal cooling pipe recovery branch pipes are located on the outer side of the middle of the internal cooling water inlet pipe, arranged in a ring around its outer side, with one end of each branch pipe mates with the cooling water outlet. The internal cooling pipe assembly also includes a sleeve that encloses the internal cooling water inlet pipe, with multiple water outlet pipes inside the sleeve, each connected to a cooling pipe recovery branch pipe. A base plate is located at the lower end of the core, and the base plate is disc-shaped. A cooling pipe through-hole is located in the center of the base plate to facilitate the passage of the internal cooling pipe assembly, and bolts connecting to a water spray ring are located at the bottom of the base plate.

5. The tooling for thin-walled casting equipment according to claim 4, characterized in that: The top of the upper plate is sealed with an insulation shell via a flange. The insulation shell has a "U"-shaped cross-section and includes a cylindrical outer shell and an upper shell. The outer shell of the insulation shell is provided with a heating coil winding and a heat insulation layer from the outside to the inside. The area between the insulation shell and the upper plate forms a heating cavity. A pouring hole penetrating through the inside and outside is opened on the side of the outer shell of the insulation shell. A pouring pipe is provided at the pouring hole, and one end of the pouring pipe is connected to the pouring plate. A pressure gauge and a suction pipe are provided at the top of the upper shell. An adjustable passage hole is opened in the middle of the upper shell to facilitate the passage of the core.

6. The tooling for thin-walled casting equipment according to claim 5, characterized in that: An internal heating module is provided within the area enclosed by the core. Multiple annular silicon carbide rods are provided on the outer side of the internal heating module. A lifting column for raising or lowering the internal heating module is provided at the top of the internal heating module. The upper part of the lifting column passes through an adjustable through hole in the middle of the upper housing. A sealing module for sealing the upper port of the core is provided on the side of the lifting column near the internal heating module.

7. The tooling for thin-walled casting equipment according to claim 6, characterized in that: The sealing module includes multiple hydraulic columns arranged circumferentially on the outer side of the lifting column. The hydraulic columns are arranged in a ring around the outer side of the lifting column. It also includes a sealing sleeve that wraps around the hydraulic columns. The sealing sleeve is disc-shaped and hollow inside. A pressure plate with a triangular cross-section is provided at the output end of the hydraulic column. It also includes a support plate with a fan-shaped cross-section. The support plate is arranged circumferentially on the inner side of the sealing sleeve. The support plate is fixed to the pressure plate at the end away from the sealing sleeve.

8. The tooling for thin-walled casting equipment according to claim 7, characterized in that: The centerline of the cooling water inlet is flush with the top surface of the lower plate, and a two-phase or three-phase rotating magnetic field winding is provided on the outside of the traveling wave electromagnetic module.

9. The casting process of the thin-walled casting equipment and tooling according to any one of claims 1-8, characterized in that... The thin-walled casting process includes the following steps: Step 1: Melting: Melt the alloy into a molten state and mix it thoroughly and evenly; Step 2: Mold preparation: Lower the chassis to its lowest position, then install the core on the chassis, and then put the core back into the insulation shell; Step 3: Preheating: Heat the core through the internal heating module. Step 4: Casting: The alloy solution is smoothly transported to the gate plate through the casting pipe. Then, under the combined action of gravity and the traveling wave electromagnetic module, the alloy solution adheres to the outer surface of the core. Step 5: Exhaust: Extend the hydraulic column in the sealing module of the lifting column to seal the core. Then, reduce the air pressure in the heating chamber through the exhaust pipe to expel the gas in the alloy solution state. Step 6: Pressurization: Pressurize the heating chamber by injecting nitrogen through the exhaust pipe to make the metal solution quickly fuse and compact. Step 7: Removal: The inner and outer sides of the core are cooled simultaneously through the water tank and internal cooling pipe assembly, while the height of the chassis is lowered to remove the casting.

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