CN112247115A - Cooling method and cooling structure of low-pressure casting die of gearbox rear auxiliary shell - Google Patents
Cooling method and cooling structure of low-pressure casting die of gearbox rear auxiliary shell Download PDFInfo
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- CN112247115A CN112247115A CN202011099417.XA CN202011099417A CN112247115A CN 112247115 A CN112247115 A CN 112247115A CN 202011099417 A CN202011099417 A CN 202011099417A CN 112247115 A CN112247115 A CN 112247115A
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- mounting hole
- cooling
- hole seat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
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Abstract
The invention discloses a cooling method and a cooling structure of a low-pressure casting mold of a rear auxiliary shell of a gearbox. According to the low-pressure casting production die for the rear auxiliary shell of the gearbox, the sprue bush is used as a molten metal inlet of the die, the upper die sprue spreader and the sprue insert form the conical ingate, and other parts have no pouring system or riser.
Description
Technical Field
The invention relates to the technical field of transmission case die equipment, in particular to a cooling method and a cooling structure of a transmission case rear auxiliary shell low-pressure casting die.
Background
The casting of the auxiliary shell behind the gearbox has the external dimension of 485mm multiplied by 431mm multiplied by 319mm, the wall thickness of the part is uneven, and a temperature field which is solidified in sequence from top to bottom is difficult to form during low-pressure casting. At present, a low-pressure casting die for a rear auxiliary shell of a gearbox generally adopts a die method with multiple inner gates and multiple risers, so that the material utilization rate of a product blank is low and is about 75-80%, and the production takt is slow.
Disclosure of Invention
The invention aims to solve the defects of the background technology and provide a cooling method and a cooling structure of a low-pressure casting mold of a gearbox rear auxiliary shell, which do not need multiple ingates and multiple risers, have high material utilization rate and fast production takt.
In order to achieve the purpose, the invention provides a cooling method of a low-pressure casting die of a rear auxiliary shell of a gearbox, which is characterized by comprising the following steps: connecting an upper die cooling structure and a lower die cooling structure with a die, closing the upper die and the lower die, pouring molten metal, setting the cooling action time and action time of the upper die cooling structure and the cooling action time and action time of the lower die cooling structure, adjusting the temperature of each part of the die, and controlling the solidification sequence of the molten metal in the die.
Further, the setting of the cooling action time and the action time of the upper die cooling structure comprises the setting of the cooling action time and the action time of an upper flange cooling device; and setting the cooling action time and action time of the cooling device in the lower mounting hole seat.
Further, the setting of the cooling action time and the action time of the upper flange cooling device comprises setting of the action time and the action time of the upper flange water cooling device; setting the action time and action time of the upper flange air cooling device; the cooling action time and the action time of the cooling device in the lower mounting hole seat are set up by setting the action time and the action time of the air cooling device in the lower mounting hole seat.
Further, the method for setting the action time and the action time of the upper flange water cooling device comprises the following steps: after 20-60 s of metal liquid is poured, water is introduced into the upper flange through an upper flange water cooling device for cooling, and the acting time is 30-60 s; the method for setting the action time and the action time of the upper flange air cooling device comprises the following steps: after 20-40 s of metal liquid is poured, ventilating and cooling the upper flange through an upper flange air cooling device, wherein the acting time is 60-100 s; the method for setting the action time and the action time of the air cooling device in the lower mounting hole seat comprises the following steps: and after the molten metal is poured for 100-180 s, ventilating and cooling the interior of the lower mounting hole seat through an air cooling device in the lower mounting hole seat, wherein the action time is 150-250 s.
Further, the cooling action time and the action time of the lower die cooling structure comprise the action time and the action time of the middle mounting hole seat water cooling device; setting the action time and the action time of an air cooling device outside the lower mounting hole seat; and setting the action time and the action time of the gate air cooling device.
Furthermore, the method for setting the action time and the action time of the water cooling device of the middle mounting hole seat comprises the following steps: after pouring molten metal for 10-30 s, cooling the central mounting hole seat by a central mounting hole seat water cooling device for 30-60 s; the method for setting the action time and the action time of the air cooling device outside the lower mounting hole seat comprises the following steps: after the molten metal is poured for 150-230 s, ventilating and cooling the outside of the lower mounting hole seat through an air cooling device outside the lower mounting hole seat, wherein the acting time is 150-250 s; the method for setting the action time and the action time of the gate air cooling device comprises the following steps: and after 180-250 s of molten metal is poured, ventilating and cooling the pouring gate through a pouring gate air cooling device, wherein the acting time is 150-300 s.
The cooling structure of the low-pressure casting die of the rear auxiliary shell of the gearbox, which is designed based on the cooling method of the low-pressure casting die of the rear auxiliary shell of the gearbox, comprises an upper die, a die and a lower die, wherein the upper die comprises an upper die cooling structure, the lower die comprises a lower die cooling structure, and the die comprises an upper flange, a middle wall, a middle mounting hole seat, a lower mounting hole seat and a pouring gate; the method is characterized in that: the upper die cooling structure comprises an upper flange cooling device connected with the upper flange and used for cooling the upper flange and a lower mounting hole seat internal cooling device used for cooling the interior of the lower mounting hole seat; the lower die cooling structure comprises a middle mounting hole seat cooling device which is connected with the middle mounting hole seat and used for cooling the middle mounting hole seat; the lower mounting hole seat external cooling device is connected with the lower mounting hole seat and used for cooling the outer part of the lower mounting hole seat, and the sprue cooling device is connected with the sprue and used for cooling the sprue.
Furthermore, the upper flange cooling device comprises an upper flange water cooling device and an upper flange air cooling device.
Furthermore, the upper flange water cooling device comprises a plurality of upper flange water cooling pins arranged on the circumferential top surface of the upper flange at intervals and an upper flange cooling water supply device connected with the upper flange water cooling pins; go up flange cooling water feeding device including the last flange catchment piece that is used for the water storage, respectively with a plurality of go up flange water-cooling pin connected's last flange point cooler, every go up the flange point cooler all with go up and be connected with flange point cooler inlet tube and last flange point cooler wet return between the flange catchment piece.
Further, go up flange air cooling device and include the inside air feed pipe of last flange and the outside air feed pipe of last flange, go up the inside air feed pipe of flange with go up the inside circumferential surface of flange between be connected with many inside air-cooled pipes of last flange, go up the outside air feed pipe of flange with go up and be connected with many outside air-cooled pipes of flange between the outside circumferential surface of flange.
Further, the inside cooling device of mounting hole seat includes the inside air cooling unit of mounting hole seat down, the inside air cooling unit of mounting hole seat is including setting up in the inside air feed pipe of lower mounting hole seat in the mould down, the inside air feed pipe of mounting hole seat down with be connected with many inside air-cooled pipes of mounting hole seat down between the circumference top upper surface of mounting hole seat.
Furthermore, the middle mounting hole seat cooling device comprises a middle mounting hole seat water cooling device, and the middle mounting hole seat water cooling device comprises a plurality of middle mounting hole seat water cooling pins connected to the bottom of the middle mounting hole seat and a middle mounting hole seat cooling water supply device connected with the middle mounting hole seat water cooling pins; the middle mounting hole seat cooling water supply device comprises a middle mounting hole seat water collecting block used for storing water, and a plurality of middle mounting hole seat spot coolers respectively connected with the middle mounting hole seat water cooling pins, wherein each middle mounting hole seat spot cooler is connected with a middle mounting hole seat spot cooler water inlet pipe and a middle mounting hole seat spot cooler water return pipe between the middle mounting hole seat water collecting block.
Further, lower mounting hole seat external cooling device includes mounting hole seat external air cooling device down, lower mounting hole seat external air cooling device including set up in the outer outside air feed pipe of lower mounting hole seat of mould, lower mounting hole seat external air feed pipe with be connected with many down the outside air-cooled pipes of mounting hole seat between the circumference top lower surface of mounting hole seat down.
Furthermore, the sprue cooling device comprises a sprue air cooling device, the sprue air cooling device comprises a sprue air supply pipe, and a plurality of sprue air cooling pipes are connected between the top of the sprue and the sprue air supply pipe.
The invention has the beneficial effects that: according to the low-pressure casting production die for the rear auxiliary shell of the gearbox, the sprue bush is used as a molten metal inlet of the die, the upper die sprue spreader and the sprue insert form the conical ingate, and other parts have no pouring system or riser.
Drawings
FIG. 1 is a longitudinal sectional view of an upper and lower mold half of the present invention;
FIG. 2 is a top view of the upper die of the present invention;
FIG. 3 is a perspective view of the connection structure of the upper flange water cooling device according to the present invention;
FIG. 4 is a perspective view of the connection structure of the upper flange air cooling device according to the present invention;
FIG. 5 is a top view of the connection structure of the upper flange air cooling device according to the present invention;
FIG. 6 is a top view of the lower die of the present invention;
FIG. 7 is a front view showing a coupling structure of a gate air-cooling device according to the present invention;
FIG. 8 is a perspective view of the connection structure of the lower mounting hole seat and the internal and external air cooling devices thereof according to the present invention;
FIG. 9 is a schematic view of the connection structure of the water cooling device of the center mounting hole seat in the present invention;
FIG. 10 is a front view of the rear sub-housing of the transmission of the present invention;
100-upper die, 101-upper flange water-cooling pin, 102-upper flange water-collecting block, 103-upper flange spot cooler, 104-upper flange spot cooler water inlet pipe, 105-upper flange spot cooler water return pipe, 106-upper flange internal air supply pipe, 107-upper flange internal air cooling pipe, 108-upper flange external air supply pipe, 109-upper flange external air cooling pipe, 110-lower mounting hole seat internal air supply pipe, and 111-lower mounting hole seat internal air cooling pipe;
200-mould, 201-upper flange, 202-middle wall, 203-middle mounting hole seat, 204-lower mounting hole seat, 205-gate;
300-lower die, 301-middle mounting hole seat water-cooling pin, 302-middle mounting hole seat water collection block, 303-middle mounting hole seat point cooler, 304-middle mounting hole seat point cooler water inlet pipe, 305-middle mounting hole seat point cooler water return pipe, 306-lower mounting hole seat external air supply pipe, 307-lower mounting hole seat external air cooling pipe, 308-pouring gate air supply pipe and 309-pouring gate air cooling pipe;
400-rear auxiliary shell of gearbox;
5-point cooler water inlet joint, 6-point cooler return water joint, 7-water collecting block water inlet joint, 8-water collecting block return water joint, 9-upper top plate auxiliary block, 10-top plate inserting plate, 11-top plate inserting plate sleeve, 12-upper top rod, 13-directional pin sleeve, 14-upper die fixing plate, 15-upper die shunting cone, 16-upper die shunting cone point cooler, 17-positioning key, 18-lower device fixing plate, 19-inner runner insert block, 20-inner runner, 21-runner sleeve and 22-runner sleeve pressing block.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
The cooling structure of the low-pressure casting die of the gearbox rear sub-housing shown in fig. 1-10 comprises an upper die 100, a die 200 and a lower die 300, wherein the die 200 comprises an upper flange 201, a middle wall 202, a middle mounting hole seat 203, a lower mounting hole seat 204 and a pouring gate 205.
The upper die 100 includes an upper die cooling structure including an upper flange water cooling device, an upper flange air cooling device, and a lower mounting hole seat internal cooling device.
The upper flange water cooling device comprises a plurality of upper flange water cooling pins 101 arranged on the circumferential top surface of an upper flange 201 at intervals, an upper flange spot cooler 103 and an upper flange water collecting block 102 which are connected with the upper flange water cooling pins 101, and an upper flange spot cooler water inlet pipe 104 and an upper flange spot cooler water return pipe 105 are connected between each upper flange spot cooler 103 and the upper flange water collecting block 102. The upper flange air cooling device comprises an upper flange internal air supply pipe 106 and an upper flange external air supply pipe 108, a plurality of upper flange internal air cooling pipes 107 are connected between the upper flange internal air supply pipe 106 and the internal circumferential surface of the upper flange 201, and a plurality of upper flange external air cooling pipes 109 are connected between the upper flange external air supply pipe 108 and the external circumferential surface of the upper flange 201. The lower mounting hole seat internal air cooling device comprises a lower mounting hole seat internal air supply pipe 110 arranged in the die 200, and a plurality of lower mounting hole seat internal air cooling pipes 111 are connected between the lower mounting hole seat internal air supply pipe 110 and the circumferential top upper surface of the lower mounting hole seat 204.
The lower mold 300 includes a lower mold cooling structure including a middle mounting hole base water cooling device, a lower mounting hole base external air cooling device, and a gate air cooling device.
The middle mounting hole seat water cooling device comprises a plurality of middle mounting hole seat water cooling pins 301 connected to the bottom of the middle mounting hole seat 203, middle mounting hole seat spot coolers 303 connected with the middle mounting hole seat water cooling pins 301 and middle mounting hole seat water collecting blocks 302, wherein a middle mounting hole seat spot cooler water inlet pipe 304 and a middle mounting hole seat spot cooler water return pipe 305 are connected between each middle mounting hole seat spot cooler 303 and each middle mounting hole seat water collecting block 302. The lower mounting hole seat external air cooling device comprises a lower mounting hole seat external air supply pipe 306 arranged outside the die 200, and a plurality of lower mounting hole seat external air cooling pipes 307 are connected between the lower mounting hole seat external air supply pipe 306 and the circumferential top lower surface of the lower mounting hole seat 204. The gate air cooling device includes a gate air supply duct 308, and a plurality of gate air cooling ducts 309 are connected between the top of the gate 205 and the gate air supply duct 308.
The invention discloses a cooling method of a low-pressure casting die of a rear auxiliary shell of a gearbox, which comprises the following steps: connecting an upper die cooling structure and a lower die cooling structure with a die 200, closing an upper die 100 and a lower die 300, pouring molten metal, and introducing water to a central mounting hole seat 203 for cooling through a central mounting hole seat water cooling device after 10-30 s of the molten metal is poured, wherein the acting time is 30-60 s; after 20-40 s of metal liquid is poured, ventilating and cooling the upper flange 201 through an upper flange air cooling device, wherein the acting time is 60-100 s; after the molten metal is poured for 20-60 s, the upper flange 201 is cooled by water through an upper flange water cooling device, and the acting time is 30-60 s; and after the molten metal is poured for 100-180 s, ventilating and cooling the interior of the lower mounting hole base 204 through an air cooling device in the lower mounting hole base, wherein the action time is 150-250 s. After the molten metal is poured for 150-230 s, ventilating and cooling the outside of the lower mounting hole base 204 through an air cooling device outside the lower mounting hole base, wherein the acting time is 150-250 s; and after 180-250 s of molten metal is poured, ventilating and cooling the pouring gate 205 through a gate air cooling device for 150-300 s.
According to the low-pressure casting production die for the rear auxiliary shell of the gearbox, the sprue bush 21 is used as a molten metal inlet of the die 200, the upper die spreader cone 15 and the ingate insert 19 form a conical ingate, and other parts have no pouring system or riser.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (14)
1. A cooling method of a low-pressure casting die of a rear auxiliary shell of a gearbox is characterized by comprising the following steps of: connecting an upper die cooling structure and a lower die cooling structure with a die (200), closing the upper die (100) and the lower die (300), pouring molten metal, setting the cooling action time and action time of the upper die cooling structure and the cooling action time and action time of the lower die cooling structure, adjusting the temperature of each part of the die (200), and controlling the solidification sequence of the molten metal in the die (200).
2. The cooling method of a transmission rear sub-housing low-pressure casting mold according to claim 1, characterized in that: the cooling action time and the action time of the upper die cooling structure comprise the cooling action time and the action time of an upper flange cooling device; and setting the cooling action time and action time of the cooling device in the lower mounting hole seat.
3. The cooling method of a transmission rear sub-housing low-pressure casting mold according to claim 2, characterized in that: the cooling action time and the action time of the upper flange cooling device comprise the action time and the action time of the upper flange water cooling device; setting the action time and action time of the upper flange air cooling device; the cooling action time and the action time of the cooling device in the lower mounting hole seat are set up by setting the action time and the action time of the air cooling device in the lower mounting hole seat.
4. The cooling method of a transmission rear sub-housing low-pressure casting mold according to claim 3, characterized in that: the method for setting the action time and the action time of the upper flange water cooling device comprises the following steps: after 20-60 s of metal liquid is poured, water is introduced into the upper flange (201) through an upper flange water cooling device for cooling, and the acting time is 30-60 s; the method for setting the action time and the action time of the upper flange air cooling device comprises the following steps: after 20-40 s of molten metal is poured, ventilating and cooling an upper flange (201) through an upper flange air cooling device, wherein the acting time is 60-100 s; the method for setting the action time and the action time of the air cooling device in the lower mounting hole seat comprises the following steps: and after the molten metal is poured for 100-180 s, ventilating and cooling the interior of the lower mounting hole seat (204) through an air cooling device in the lower mounting hole seat, wherein the action time is 150-250 s.
5. The cooling method of a transmission rear sub-housing low-pressure casting mold according to claim 1, characterized in that: the cooling action time and the action time of the lower die cooling structure comprise the action time and the action time of the mounting hole seat water cooling device in the middle; setting the action time and the action time of an air cooling device outside the lower mounting hole seat; and setting the action time and the action time of the gate air cooling device.
6. The cooling method of a transmission rear sub-housing low-pressure casting mold according to claim 5, characterized in that: the method for setting the action time and the action time of the water cooling device of the middle mounting hole seat comprises the following steps: after pouring molten metal for 10-30 s, water is introduced into the central mounting hole seat (203) through a central mounting hole seat water cooling device for cooling, and the acting time is 30-60 s; the method for setting the action time and the action time of the air cooling device outside the lower mounting hole seat comprises the following steps: after the molten metal is poured for 150-230 s, ventilating and cooling the outside of the lower mounting hole seat (204) through an air cooling device outside the lower mounting hole seat, wherein the acting time is 150-250 s; the method for setting the action time and the action time of the gate air cooling device comprises the following steps: and after 180-250 s of molten metal is poured, ventilating and cooling the pouring gate (205) by a pouring gate air cooling device, wherein the acting time is 150-300 s.
7. A cooling structure of a gearbox rear auxiliary shell low-pressure casting mold comprises an upper mold (100), a mold (200) and a lower mold (300), wherein the upper mold (100) comprises an upper mold cooling structure, the lower mold (300) comprises a lower mold cooling structure, and the mold (200) comprises an upper flange (201), a middle wall (202), a middle mounting hole seat (203), a lower mounting hole seat (204) and a pouring gate (205); the method is characterized in that: the upper die cooling structure comprises an upper flange cooling device connected with the upper flange (201) and used for cooling the upper flange (201) and a lower mounting hole seat internal cooling device used for cooling the interior of the lower mounting hole seat (204); the lower die cooling structure comprises a middle mounting hole seat cooling device which is connected with the middle mounting hole seat (203) and used for cooling the middle mounting hole seat (203); a lower mounting hole base external cooling device connected with the lower mounting hole base (204) and used for cooling the outer part of the lower mounting hole base (204), and a gate cooling device connected with the gate (205) and used for cooling the gate (205).
8. The cooling structure of a transmission rear sub-housing low-pressure casting mold according to claim 7, characterized in that: the upper flange cooling device comprises an upper flange water cooling device and an upper flange air cooling device.
9. The cooling structure of a transmission rear sub-housing low-pressure casting mold according to claim 8, characterized in that: the upper flange water cooling device comprises a plurality of upper flange water cooling pins (101) arranged on the circumferential top surface of the upper flange (201) at intervals and an upper flange cooling water supply device connected with the upper flange water cooling pins (101); the upper flange cooling water supply device comprises an upper flange water collecting block (102) used for storing water, and an upper flange spot cooler (103) connected with the upper flange water cooling pin (101) respectively, wherein an upper flange spot cooler water inlet pipe (104) and an upper flange spot cooler water return pipe (105) are connected between the upper flange spot cooler (103) and the upper flange water collecting block (102).
10. The cooling structure of a transmission rear sub-housing low-pressure casting mold according to claim 8, characterized in that: go up flange air cooling device and include inside air feed pipe (106) of last flange and go up flange outside air feed pipe (108), go up flange inside air feed pipe (106) with go up and be connected with many inside air-cooled pipes (107) of last flange between the inside circumference surface of flange (201), go up flange outside air feed pipe (108) with go up and be connected with many outside air-cooled pipes (109) of last flange between flange (201) outside circumference surface.
11. The cooling structure of a transmission rear sub-housing low-pressure casting mold according to claim 7, characterized in that: the inside cooling device of mounting hole seat includes the inside air-cooled device of mounting hole seat down, the inside air-cooled device of mounting hole seat including set up in inside air feed pipe (110) of lower mounting hole seat in mould (200), down inside air feed pipe (110) of mounting hole seat with be connected with many inside air-cooled pipes (111) of mounting hole seat down between the circumference top upper surface of mounting hole seat (204).
12. The cooling structure of a transmission rear sub-housing low-pressure casting mold according to claim 7, characterized in that: the middle mounting hole seat cooling device comprises a middle mounting hole seat water cooling device, and the middle mounting hole seat water cooling device comprises a plurality of middle mounting hole seat water cooling pins (301) connected to the bottom of the middle mounting hole seat (203) and a middle mounting hole seat cooling water supply device connected with the middle mounting hole seat water cooling pins (301); well mounting hole seat cooling water feeding device is including well mounting hole seat catchment piece (302) that are used for the water storage, respectively with a plurality of well mounting hole seat point cooler (303) that well mounting hole seat water-cooling round pin (301) are connected, every well mounting hole seat point cooler (303) all with well mounting hole seat catchment between the piece (302) is connected with well mounting hole seat point cooler inlet tube (304) and well mounting hole seat point cooler wet return (305).
13. The cooling structure of a transmission rear sub-housing low-pressure casting mold according to claim 7, characterized in that: the lower mounting hole seat external cooling device comprises a lower mounting hole seat external air cooling device, the lower mounting hole seat external air cooling device comprises a lower mounting hole seat external air supply pipe (306) arranged outside the die (200), and a plurality of lower mounting hole seat external air cooling pipes (307) are connected between the lower mounting hole seat external air supply pipe (306) and the circumferential top lower surface of the lower mounting hole seat (204).
14. The cooling structure of a transmission rear sub-housing low-pressure casting mold according to claim 7, characterized in that: the gate cooling device comprises a gate air cooling device, the gate air cooling device comprises a gate air supply pipe (308), and a plurality of gate air cooling pipes (309) are connected between the top of the gate (205) and the gate air supply pipe (308).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011099417.XA CN112247115B (en) | 2020-10-14 | 2020-10-14 | Cooling method for low-pressure casting die of rear auxiliary shell of gearbox |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011099417.XA CN112247115B (en) | 2020-10-14 | 2020-10-14 | Cooling method for low-pressure casting die of rear auxiliary shell of gearbox |
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| CN112247115A true CN112247115A (en) | 2021-01-22 |
| CN112247115B CN112247115B (en) | 2022-07-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115846623A (en) * | 2022-12-22 | 2023-03-28 | 广东鸿兴精密科技股份有限公司 | Novel low pressure casting system |
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| CN211331269U (en) * | 2019-12-30 | 2020-08-25 | 北京航空航天大学宁波创新研究院 | Low-pressure casting mould of new energy automobile motor end cover |
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| JPS6453755A (en) * | 1987-08-21 | 1989-03-01 | Honda Motor Co Ltd | Low pressure casting method for light alloy casting |
| CN203124711U (en) * | 2012-12-20 | 2013-08-14 | 江苏凯特汽车部件有限公司 | Low-pressure casting mold capable of reducing cavity shrinkage and loosening of aluminum alloy wheel spoke |
| CN104550846A (en) * | 2015-01-22 | 2015-04-29 | 昆山众异特机械工业有限公司 | Mold air and water combined cooling system and low-pressure wheel hub mold with same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115846623A (en) * | 2022-12-22 | 2023-03-28 | 广东鸿兴精密科技股份有限公司 | Novel low pressure casting system |
| CN115846623B (en) * | 2022-12-22 | 2023-08-11 | 广东鸿兴精密科技股份有限公司 | Low pressure casting system |
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| CN112247115B (en) | 2022-07-05 |
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