CN115673280A - Die casting die capable of reducing air holes in castings - Google Patents
Die casting die capable of reducing air holes in castings Download PDFInfo
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- CN115673280A CN115673280A CN202211394317.9A CN202211394317A CN115673280A CN 115673280 A CN115673280 A CN 115673280A CN 202211394317 A CN202211394317 A CN 202211394317A CN 115673280 A CN115673280 A CN 115673280A
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- 238000004512 die casting Methods 0.000 title claims abstract description 153
- 238000005266 casting Methods 0.000 title claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 32
- 239000007788 liquid Substances 0.000 description 10
- 239000007921 spray Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention discloses a die-casting die capable of reducing air holes in castings, which comprises a lower die-casting die, a pressure reducing device and a push rod, wherein a cooling groove is formed in the lower die-casting die, a connecting conduit is arranged at the bottom of the lower die-casting die, and a first electromagnetic valve is arranged on the inner wall of the lower die-casting die. According to the invention, through the first electromagnetic valve and the second electromagnetic valve, after the lower die casting die and the upper die casting die are closed, the first electromagnetic valve is opened by closing the second electromagnetic valve, then air in the air pump connected with the air outlet pipe is pumped out, so that the interior is changed into a negative pressure state, then the return spring pushes the sealing ball to close the auxiliary groove, then the molten metal enters the discharge pipe, the hydraulic device is started, the hydraulic device pushes the push plate to extrude the molten metal in the discharge pipe, then the second electromagnetic valve is opened, so that the die casting die can quickly suck the molten metal into the die casting die, and air holes in parts are reduced by reducing the air in the die casting die.
Description
Technical Field
The invention relates to the field of die-casting molds, in particular to a die-casting mold capable of reducing air holes in a casting.
Background
The die-casting die is a tool for casting metal parts, and is a tool for completing a die-casting process on a special die-casting die forging machine. The basic process of die casting comprises the following steps: the molten metal is cast at low speed or high speed and filled into the cavity of the mold, the mold has movable cavity surface, and it is pressurized and forged with the cooling process of the molten metal, so that the shrinkage cavity and shrinkage porosity defect of the blank is eliminated, and the internal structure of the blank reaches the broken crystal grains in the forged state. The comprehensive mechanical property of the blank is obviously improved.
But its when in actual use, because there is the air in die casting die's inside, lead to the metal liquid easily when entering into die casting die's inside, can't extrude the air fast, lead to the inside of metal spare part to appear the gas pocket easily, reduce the intensity of metal spare part, simultaneously because the casting-off liquid sprays inhomogeneous and leads to the part adhesion can't break away from in die casting die's inside easily.
Therefore, it is necessary to provide a die casting mold capable of reducing the number of air holes in the casting to solve the above problems.
Disclosure of Invention
The invention aims to provide a die-casting die capable of reducing air holes in a casting, wherein after a lower die-casting die and an upper die-casting die are closed through a first electromagnetic valve and a second electromagnetic valve, the first electromagnetic valve is opened by closing the second electromagnetic valve, then air in an air pump connected with an air outlet pipe is pumped out, so that the interior of the lower die-casting die and the upper die-casting die is changed into a negative pressure state, then a return spring pushes a sealing ball to close an auxiliary groove, then molten metal equivalently enters the interior of a discharging pipe, then a hydraulic device is started, so that the hydraulic device pushes a push plate to extrude the molten metal in the discharging pipe, and then the second electromagnetic valve is opened, so that the die-casting die can quickly suck the molten metal into the interior of the die-casting die, and the air holes in parts are reduced through reducing the air in the die-casting die, so that the defects in the technology are overcome.
In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides a die casting die of reducible foundry goods intrinsic qi hole, includes die casting die, pressure relief device and catch bar down, the inside cooling trough that has seted up of die casting die down, die casting die bottom is provided with connecting pipe down, die casting die inner wall is provided with first solenoid valve down, the inside conduction groove of having seted up of die casting die down, the outer wall of conduction groove one end is provided with the conduction pipe, the inside of conduction pipe one side is provided with the second solenoid valve, second solenoid valve one end is provided with the discharging pipe, the outer wall of discharging pipe one end is provided with hydraulic means, hydraulic means one end is provided with the push pedal, the push pedal sets up in the inside of discharging pipe, the discharging pipe top is provided with the inlet pipe, the top of die casting die and last die casting die all is provided with the dwang down, the centre of die casting die and the top of last die casting die all is provided with reset spring down, die casting die outer wall is provided with the slide bar down, the slide bar outer wall is provided with last die casting die, the inside spout of having seted up, the slide bar passes through the spout connection with the inside of seting groove of seting, the push bar outer wall sets up and down, the one end of push bar sets up and down the lifting gear is provided with the lifting gear output end of servo motor, the lifting gear lifting motor bottom lifting motor is provided with the lifting gear.
Preferably, the cooling tank is respectively arranged in the lower die casting die and the upper die casting die, and a plurality of arc-shaped grooves are formed in the cooling tank at equal intervals.
Preferably, the number of the first electromagnetic valves is five, and the five first electromagnetic valves are symmetrically distributed on two sides of a center line of the lower die casting mould.
Preferably, the push plate is connected with the discharging pipe in a sliding mode, the inner wall of the push plate is attached to the inner wall of the discharging pipe, and the push plate and the discharging pipe are made of heat-resistant alloy materials.
Preferably, the number of the sliding rods is four, and the four sliding rods are symmetrically distributed on two sides of a vertical center line of the lower die casting mould.
Preferably, the slide bar is connected with the upper die-casting die in a sliding mode, and the outer wall of the slide bar is attached to the inner portion of the sliding groove in the upper die-casting die.
Preferably, the pressure reducing device comprises an outlet pipe, a pushing spring, a sealing ball and an auxiliary groove, the outlet pipe is arranged at one end of the rotating rod, the pushing spring is arranged inside the outlet pipe, the sealing ball is arranged at one end of the pushing spring, and the auxiliary groove is formed in one end of the outlet pipe.
Preferably, the horizontal center line of the auxiliary groove and the horizontal center line of the air outlet groove are coaxially arranged, and the diameter of the auxiliary groove is smaller than that of the sealing ball.
Preferably, the push rod is arranged between a rotating rod at the top of the lower die-casting die and a rotating rod at the top of the upper die-casting die, and the push rods are respectively connected with the two rotating rods in a rotating manner.
Preferably, the number of the driven gears is two, the two driven gears are symmetrically distributed on two sides of a horizontal central line of the lifting strip, the driven gears are in meshed connection with the driving gear, and the driven gears are half gears.
In the technical scheme, the invention has the following technical effects and advantages:
1. through the first electromagnetic valve and the second electromagnetic valve, after the lower die-casting die and the upper die-casting die are closed, the first electromagnetic valve is opened by closing the second electromagnetic valve, then air in the die-casting die and the conduction pipe is pumped out through an air pump connected with an air outlet pipe, so that the interiors of the die-casting die and the conduction pipe are changed into a negative pressure state, then a return spring pushes a sealing ball to close an auxiliary groove, then molten metal equivalently enters the interior of a discharging pipe, then a hydraulic device is started, the hydraulic device pushes a push plate to extrude the molten metal in the discharging pipe, and then the second electromagnetic valve is opened, so that the die-casting die can quickly suck the molten metal into the interior of the die-casting die, and air holes in parts are reduced by reducing the air in the die-casting die;
2. through the driving gear, it can drive the dwang rotation at die casting die top after die casting die breaks away from down die casting die to go up die casting die, make die casting die and die casting die down's horizontal central line and the horizontal central line of dwang be parallel to each other, then the dwang promotes catch bar vertical downward movement, make the lifter of catch bar bottom enter into down between die casting die and the last die casting die, start servo motor, make servo motor reciprocating motion, then servo motor drives the driving gear rotation, the driving gear drives driven gear rotation, driven gear reciprocating motion drives the swinging arms swing, the swinging arms drives the shower nozzle swing, thereby can make the shower nozzle that the front end set up for fan-shaped will take off the membrane liquid and evenly spray the outer wall of die casting die and last die casting die down.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective cross-sectional view of the present invention;
FIG. 3 is a perspective view of the upper die casting mold of the present invention;
FIG. 4 is a perspective view of a lower die casting mold of the present invention;
FIG. 5 is a perspective view of the lifter plate of the present invention;
fig. 6 is a partial enlarged view of the invention at a in fig. 2.
Description of reference numerals:
1. pressing down the die; 2. a cooling tank; 3. connecting a conduit; 4. a first solenoid valve; 5. a conduction groove; 6. a conduction pipe; 7. a second solenoid valve; 8. discharging the material pipe; 9. a hydraulic device; 10. pushing the plate; 11. a feeding pipe; 12. rotating the rod; 13. a return spring; 14. a slide bar; 15. an upper die-casting die; 16. a chute; 17. an air outlet groove; 18. a pressure reducing device; 1801. an air outlet pipe; 1802. a push spring; 1803. a sealing ball; 1804. an auxiliary groove; 19. a push rod; 20. a lifting plate; 21. a lifting bar; 22. a servo motor; 23. a driving gear; 24. a driven gear; 25. a swing lever; 26. and (4) a spray head.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
The invention provides a die-casting die capable of reducing air holes in castings, as shown in figures 1-6, which comprises a lower die-casting die 1, a pressure reducing device 18 and a push rod 19, wherein a cooling groove 2 is formed in the lower die-casting die 1, a connecting conduit 3 is arranged at the bottom of the lower die-casting die 1, a first electromagnetic valve 4 is arranged on the inner wall of the lower die-casting die 1, a conduction groove 5 is formed in the lower die-casting die 1, a conduction pipe 6 is arranged on the outer wall of one end of the conduction groove 5, a second electromagnetic valve 7 is arranged in one side of the conduction pipe 6, a discharging pipe 8 is arranged at one end of the second electromagnetic valve 7, a hydraulic device 9 is arranged on the outer wall of one end of the discharging pipe 8, a push plate 10 is arranged at one end of the hydraulic device 9, the push plate 10 is arranged in the discharging pipe 8, a feeding pipe 11 is arranged at the top of the discharging pipe 8, rotating rods 12 are arranged at the tops of the lower die-casting die 1 and an upper die 15, a reset spring 13 is arranged in the middles of the tops of the lower die-casting die 1 and the upper die-casting die 15, a lifting motor 16 is arranged at the middle of the lower die-casting die 1, a lifting motor 20 is arranged at the bottom of the lifting slide bar 16, a lifting slide bar 16 is arranged on the lifting slide groove 16, a lifting slide bar 16 is arranged at the lifting slide bar 16, a lifting slide bar 16 is arranged at the lifting slide groove 16 connected with a lifting slide bar 16, a lifting slide bar 16 arranged at the lifting slide bar 16 arranged on the lifting slide bar 16, a lifting slide bar 16 arranged at the lifting slide bar 16, the outer wall of the driven gear 24 is provided with a swinging rod 25, and the outer wall of the driving gear 23 is provided with a spray head 26.
Further, in the above technical scheme, the cooling tank 2 is respectively arranged in the lower die casting die 1 and the upper die casting die 15, a plurality of arc-shaped grooves are equidistantly formed in the cooling tank 2, the cooled or heated liquid can be guided into the cooling tank 2 through the cooling tank 2, the molten metal in the die casting die is cooled or insulated, the cooling speed of the molten metal is reduced, the molten metal is prevented from being more condensed, and the temperature inside and outside the molten metal is unequal, so that the part is cracked.
Further, in the above technical solution, the number of the first electromagnetic valves 4 is five, the five first electromagnetic valves 4 are symmetrically distributed on two sides of the center line of the lower die casting mold 1, and the plurality of first electromagnetic valves 4 can uniformly distribute molten metal in the die casting mold, so as to reduce air holes in the parts.
Furthermore, in the above technical scheme, push pedal 10 and discharge pipe 8 sliding connection, the inner wall of push pedal 10 and the inner wall laminating of discharge pipe 8, push pedal 10 and discharge pipe 8 are heat-resisting alloy material and make, and the distance of adjustment push pedal 10 in discharge pipe 8 can adjust the volume of the metal liquid that enters into discharge pipe 8, can prevent too much or too little the inside that enters into die casting die of metal liquid simultaneously, prevents that the metal liquid from oozing from die casting die's inside, can prevent simultaneously that the metal liquid can't fill up die casting die's inside.
Further, in the above technical scheme, the number of the slide bars 14 is four, the four slide bars 14 are symmetrically distributed on two sides of a vertical center line of the lower die casting mold 1, the slide bars 14 are slidably connected with the upper die casting mold 15, the outer wall of the slide bars 14 is attached to the inside of a sliding groove 16 in the upper die casting mold 15, the upper die casting mold 15 can be stably moved forward through the slide bars 14, and deviation between the lower die casting mold 1 and the upper die casting mold 15 is prevented.
Further, in the above technical solution, the pressure reducing device 18 includes an outlet pipe 1801, a push spring 1802, a sealing ball 1803 and an auxiliary groove 1804, the outlet pipe 1801 is disposed at one end of the rotating rod 12, the push spring 1802 is disposed inside the outlet pipe 1801, one end of the push spring 1802 is provided with the sealing ball 1803, one end of the outlet pipe 1801 is provided with the auxiliary groove 1804, a horizontal center line of the auxiliary groove 1804 is coaxially disposed with a horizontal center line of the outlet groove 17, a diameter of the auxiliary groove 1804 is smaller than a diameter of the sealing ball 1803, the sealing ball 1803 is pushed by the push spring 1802 to move forward, the sealing ball 1803 can seal the auxiliary groove 1804, and the molten metal is prevented from flowing out of the outlet groove 17.
Further, in the above technical scheme, the push rod 19 is disposed between the rotating rod 12 at the top of the lower die casting mold 1 and the rotating rod 12 at the top of the upper die casting mold 15, the push rod 19 is rotatably connected to the two rotating rods 12, the number of the driven gears 24 is two, the two driven gears 24 are symmetrically distributed on two sides of the horizontal central line of the lifting strip 21, the driven gears 24 are meshed with the driving gear 23, the driven gears 24 are half gears, after the lower die casting mold 1 and the upper die casting mold 15 are opened, the lower die casting mold 1 and the upper die casting mold 15 drive the rotating rods 12 to rotate, then the rotating rods 12 drive the push rod 19 to move downwards, the push rod 19 drives the lifting strip 21 to enter between the lower die casting mold 1 and the upper die casting mold 15, and then the servo motor 22 is started, so that the output end of the servo motor 22 drives the driving gear 23 to rotate, and the driving gear 23 drives the meshed driven gear 24.
The working principle of the invention is as follows:
referring to the attached drawings 1-6 of the specification, when a part needs to be manufactured by a die-casting die, firstly, a hydraulic rod pushes an upper die-casting die 15 to move backwards, then a rotating rod 12 arranged at the top of the upper die-casting die 15 rotates, so that the central lines of the rotating rod 12 at the top of a lower die-casting die 1 and the rotating rod 12 at the top of the upper die-casting die 15 are parallel to the horizontal central lines of the lower die-casting die 1 and the upper die-casting die 15, then the rotating rod 12 drives a pushing rod 19 to vertically move downwards, the pushing rod 19 drives a lifting plate 20 to move downwards, the lifting plate 20 drives a lifting strip 21 to enter the lower die-casting die 1 and the upper die-casting die 15, then a servo motor 22 is started, the servo motor 22 rotates to drive a driving gear 23 to rotate in a reciprocating manner, then the driving gear 23 drives a driven gear 24 to reciprocate, the driven gear 24 drives a swinging rod 25 to swing in a reciprocating manner, the swinging rod 25 drives a nozzle 26 with the front end being in a fan shape to swing manner, the nozzle 26 sprays stripping liquid into the inner walls of the lower die-casting die 1 and the upper die-casting die 15, then the hydraulic rod pushes the upper die-casting die 15 to move inwards, the part to separate from the inner walls of the lower die-casting die 1 and the upper die 15, and the upper die-casting die 15, and the upper die 15 after the upper die 15 are separated from the lower die-casting die 15;
referring to the attached drawings 1-6 of the specification, a first electromagnetic valve 4 is opened to close a second electromagnetic valve 7, an air pump connected with an air outlet pipe 1801 is started, the air pump pumps out air in a die-casting die and a conduction pipe 6, so that the inside of the die-casting die is in a negative pressure state, meanwhile, a push spring 1802 pushes a sealing ball 1803 to move forwards, the sealing ball 1803 is attached to an auxiliary groove 1804 to seal an air outlet groove 17, then, the molten metal enters the inside of a discharging pipe 8, the amount of the molten metal entering the discharging pipe 8 can be adjusted by adjusting the distance of a push plate 10 in the discharging pipe 8, a hydraulic device 9 pushes the push plate 10 to extrude the molten metal to discharge air bubbles inside, then, the second electromagnetic valve 7 is opened, the molten metal can be rapidly pumped into the die-casting die in the negative pressure state, the first electromagnetic valve 4 is closed, the heated liquid is discharged into a cooling groove 2 through the connection pipe 3, the molten metal can be slowly cooled, the cracking of the molten metal can be prevented, then, the molten metal can be separated from the lower die-casting die 1 from an upper die-casting die, and the die 15, and the die-casting die can be taken out parts after the parts are separated.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and are not to be construed as limiting the scope of the invention.
Claims (10)
1. The utility model provides a die casting die of reducible foundry goods intrinsic qi hole, includes die casting mould (1), pressure relief device (18) and catch bar (19) down, its characterized in that: the cooling device is characterized in that a cooling groove (2) is formed in the lower die-casting die (1), a connecting guide pipe (3) is arranged at the bottom of the lower die-casting die (1), a first electromagnetic valve (4) is arranged on the inner wall of the lower die-casting die (1), a conduction groove (5) is formed in the lower die-casting die (1), a conduction pipe (6) is arranged on the outer wall of one end of the conduction groove (5), a second electromagnetic valve (7) is arranged in one side of the conduction pipe (6), a discharging pipe (8) is arranged at one end of the second electromagnetic valve (7), a hydraulic device (9) is arranged on the outer wall of one end of the discharging pipe (8), a push plate (10) is arranged at one end of the hydraulic device (9), the push plate (10) is arranged in the discharging pipe (8), a feeding pipe (11) is arranged at the top of the discharging pipe (8), rotating rods (12) are arranged at the tops of the lower die-casting die (1) and the upper die-casting die (15), a reset spring (13) is arranged in the middle of the tops of the lower die-casting die (1) and the upper die (15), a sliding rod (14) is arranged on the outer wall of the die-casting die (15), and a sliding chute (16) is arranged in the upper die-casting die (14), slide bar (14) are connected through spout (16) with last die casting die (15), gas outlet groove (17) have been seted up to inside in the middle of spout (16), pressure relief device (18) set up in one side outer wall of last die casting die (15), catch bar (19) set up in the one end of dwang (12), catch bar (19) one end welding has lifter plate (20), lifter plate (20) bottom is provided with lifter bar (21), the outer wall of lifter bar (21) bottom is provided with servo motor (22), servo motor (22) output is provided with driving gear (23), inside driven gear (24) that is provided with in both sides of lifter bar (21) bottom, driven gear (24) outer wall is provided with swinging arms (25), driving gear (23) outer wall is provided with shower nozzle (26).
2. The die casting mold for reducing the porosity in the casting according to claim 1, wherein: the cooling tank (2) is respectively arranged in the lower die casting die (1) and the upper die casting die (15), and a plurality of arc-shaped grooves are formed in the cooling tank (2) at equal intervals.
3. The die casting mold for reducing the porosity in the casting according to claim 1, wherein: the number of the first electromagnetic valves (4) is five, and the five first electromagnetic valves (4) are symmetrically distributed on two sides of the central line of the lower die casting mould (1).
4. The die casting mold for reducing the porosity in the casting according to claim 1, wherein: the material discharging device is characterized in that the push plate (10) is in sliding connection with the material discharging pipe (8), the inner wall of the push plate (10) is attached to the inner wall of the material discharging pipe (8), and the push plate (10) and the material discharging pipe (8) are made of heat-resistant alloy materials.
5. The die casting mold for reducing the porosity in the casting according to claim 1, wherein: the number of the sliding rods (14) is four, and the four sliding rods (14) are symmetrically distributed on two sides of a vertical center line of the lower die casting mould (1).
6. The die casting mold for reducing the porosity in the casting according to claim 1, wherein: the sliding rod (14) is connected with the upper die-casting die (15) in a sliding mode, and the outer wall of the sliding rod (14) is attached to the inner portion of a sliding groove (16) in the upper die-casting die (15).
7. The die casting mold for reducing the porosity in the casting according to claim 1, wherein: pressure relief device (18) include outlet duct (1801), push spring (1802), ball sealer (1803) and auxiliary groove (1804), outlet duct (1801) sets up in the one end of dwang (12), outlet duct (1801) inside is provided with push spring (1802), push spring (1802) one end is provided with ball sealer (1803), outlet duct (1801) one end is provided with auxiliary groove (1804).
8. A die casting mold for reducing air holes in castings according to claim 7, wherein: the horizontal center line of the auxiliary groove (1804) and the horizontal center line of the air outlet groove (17) are coaxially arranged, and the diameter of the auxiliary groove (1804) is smaller than that of the sealing ball (1803).
9. The die casting mold for reducing the porosity in the casting according to claim 1, wherein: the push rods (19) are arranged between the rotating rods (12) at the tops of the lower die-casting dies (1) and the rotating rods (12) at the tops of the upper die-casting dies (15), and the push rods (19) are respectively connected with the two rotating rods (12) in a rotating mode.
10. The die casting mold for reducing the porosity in the casting according to claim 1, wherein: the number of driven gear (24) sets up to two, two driven gear (24) symmetric distribution is in the both sides of the horizontal central line of lifting strip (21), driven gear (24) are connected with driving gear (23) meshing, driven gear (24) set up to the half-gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211394317.9A CN115673280B (en) | 2022-11-08 | 2022-11-08 | Die casting die capable of reducing air holes in castings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211394317.9A CN115673280B (en) | 2022-11-08 | 2022-11-08 | Die casting die capable of reducing air holes in castings |
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| Publication Number | Publication Date |
|---|---|
| CN115673280A true CN115673280A (en) | 2023-02-03 |
| CN115673280B CN115673280B (en) | 2024-07-05 |
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| CN202211394317.9A Active CN115673280B (en) | 2022-11-08 | 2022-11-08 | Die casting die capable of reducing air holes in castings |
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| CN216729474U (en) * | 2022-01-27 | 2022-06-14 | 重庆胜云模具制造有限公司 | Die-casting die for engine oil pump |
| CN114871411A (en) * | 2022-05-09 | 2022-08-09 | 巢湖宜安云海科技有限公司 | High-precision vacuum quantitative magnesium-aluminum alloy die-casting device |
| CN114951588A (en) * | 2022-06-02 | 2022-08-30 | 台州乔克科技有限公司 | Die-casting process |
| CN115055660A (en) * | 2022-06-02 | 2022-09-16 | 台州乔克科技有限公司 | Die casting equipment |
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| CN115673280B (en) | 2024-07-05 |
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