CN116037922A - Powder metallurgy forming die capable of being used in combination and method - Google Patents
Powder metallurgy forming die capable of being used in combination and method Download PDFInfo
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- CN116037922A CN116037922A CN202211403871.9A CN202211403871A CN116037922A CN 116037922 A CN116037922 A CN 116037922A CN 202211403871 A CN202211403871 A CN 202211403871A CN 116037922 A CN116037922 A CN 116037922A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
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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
- Y02P10/25—Process efficiency
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- Powder Metallurgy (AREA)
Abstract
The invention provides a powder metallurgy forming die and a powder metallurgy forming method capable of being combined and used, and relates to the technical field of powder metallurgy forming. The invention can remove and combine the product processing device of the inner wall, avoid the problem that the ejector device is required to be reinstalled when different products are processed in the using process of traditional equipment, ensure the using effect and the using quality of the equipment and improve the application performance.
Description
Technical Field
The invention relates to the technical field of powder metallurgy forming, in particular to a powder metallurgy forming die and a powder metallurgy forming method capable of being used in a combined mode.
Background
Powder metallurgy forming is one of the basic processes in powder metallurgy production, the purpose is to press loose powder in a mould to a semi-finished product with predetermined geometry, size, density and strength, and then to demould the semi-finished product blank, which at least also needs to undergo a subsequent sintering process to become a finished product, the most important device in the powder metallurgy forming technology is a forming mould, and the powder metallurgy forming mould is the basic device for processing products.
After the product is molded in the process of processing the product, the powder metallurgy molding die needs to eject the product by the ejection device, and then the product is taken by an operator, but because the ejection device is matched with the die, the ejection device needs to be reinstalled when the die is replaced to process different products, the using effect and the using quality of equipment are affected, so that the powder metallurgy molding die used in combination is required to ensure that different products can be processed, and the using effect and the applicability of the equipment are improved.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a powder metallurgy forming die and a method which can be used in combination, which solve the problems that after a product is formed in the processing process of the product by the powder metallurgy forming die, the product is ejected by an ejection device and then taken by an operator, but because the ejection device is matched with the die, the ejection device is required to be reinstalled when the die is replaced to process different products, the using effect and the using quality of equipment are affected, and the powder metallurgy forming die which is used in combination is required to ensure that different products can be processed, and the using effect and the applicability of the equipment are increased.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a powder metallurgy forming die that can make up use, includes upper die and bed die, the lower surface of bed die is provided with the combination shell, the cavity has been seted up to the inside of bed die, the four corners department of bed die lower surface has all been seted up the spacing groove, the draw-in groove has been seted up to the lower surface of bed die, a plurality of ventilative mouths have been seted up to the upside of cavity inner wall, the downside of bed die inner wall is located all to offer around a plurality of ventilative mouths keeps off the groove, a plurality of the inner wall that keeps off the groove all is provided with sealing device;
the sealing device comprises a baffle which is rotationally connected to one side of the inner wall of the baffle, two springs are fixedly connected to one side surface of the baffle, an output cavity is formed in the inner portion of the combined shell, which is located at the lower sides of the limiting grooves, and the inner walls of the output cavities are provided with output devices.
Preferably, the output device comprises a servo motor fixedly connected to one side of the inner wall of the output cavity, the upper surface of the combined shell is fixedly connected with a limiting shell at the lower side of the limiting groove, the output end of the servo motor is fixedly connected with an adjusting screw rod, the rod wall of the adjusting screw rod is fixedly connected with two first bevel gears, and the left side and the right side of each first bevel gear are respectively provided with a rotating device.
Further, rotating device is including the second bevel gear of meshing connection at first bevel gear one side surface, the inner wall fixedly connected with removal lead screw of second bevel gear, the pole wall threaded connection of removal lead screw has a spacing section of thick bamboo, one side that is located spacing section of thick bamboo of spacing shell inner wall has been seted up and has been stretched the mouth, stretch the opposite side of mouth inner wall all to offer the spout, two the inner wall of spout all is through one side surface of slider and the opposite side sliding connection of spacing section of thick bamboo wall respectively, the inlet channel has all been seted up to the left and right sides surface of combination shell, two the inner wall of inlet channel all is provided with conveyor.
Still further, conveyor includes the miniature air pump of fixed connection in air inlet tank inner wall one side, one side fixedly connected with of air inlet tank inner wall advances the otter board, a plurality of gas outlets have been seted up to the upside of combination shell inner wall, and is a plurality of the equal fixedly connected with check valve of inner wall of gas outlet, a plurality of air inlets have been seted up to the downside of cavity inner wall, demolish the combination to the processing product device of inner wall and use, avoid traditional equipment just to need install ejection device's problem again when processing different products in the use, guarantee the result of use and the quality of use of equipment, improve application performance.
Still further, two corresponding one ends of the springs are fixedly connected with one side of the inner wall of the corresponding blocking groove, the upper ends of the adjusting screw rods penetrate through the upper side of the inner wall of the corresponding output cavity respectively and extend into the corresponding limiting shell, the adjusting screw rods are rotatably connected with one side of the inner wall of the limiting shell, and the output ends of the miniature air pumps penetrate through one side of the inner wall of the corresponding air inlet groove respectively and extend to the inner wall of the combined shell.
Still further, the upper surface fixedly connected with of combination shell with draw-in groove assorted ring fixture block, the inner wall of ring fixture block is provided with sealed ring circle.
The application method of the powder metallurgy forming die capable of being used in a combined mode is characterized by comprising the following steps of: the specific steps are as follows;
s1, assembling a die, and installing the die to be used into equipment;
s2, taking out the product, ejecting the product through the structure, and taking out the product through an operator.
Still further, the equipment of mould in S1 is the bed die that will need process through the joint between draw-in groove and the ring fixture block, and the in-process spacing groove of joint also contacts with spacing shell, just so can the accurate combination between bed die and the combination shell, and the structure in the rethread output chamber is fixed to the bed die, and servo motor in the output chamber drives the second bevel gear on the first bevel gear through accommodate the lead screw and rotates, and the second bevel gear drives the removal that spacing section of thick bamboo kept away from spacing shell through moving the lead screw, carries out spacing fixedly to the spacing groove through spacing section of thick bamboo, places the product in the bed die like this, compresses tightly the shaping through last mould to the product in the bed die.
Still further, take out of product in S2 is ejecting the product in the lower mould through the gas of miniature air pump output, and miniature air pump is carried out pressure gas through the gas outlet on the combination shell, and the check valve is the normal use that avoids impurity in the environment to influence equipment, and gas that the gas outlet output enters into the cavity through the air inlet, and the gas in the cavity is ejecting the product when exporting through the ventilative port, then rethread operating personnel takes out the product so far has finished the processing of product.
(III) beneficial effects
The invention provides a powder metallurgy forming die and a powder metallurgy forming method which can be used in a combined mode. The beneficial effects are as follows:
1. through setting up mould, bed die, combination shell, cavity, spacing groove, draw-in groove, ventilative mouth, fender groove, baffle, spring, output chamber, servo motor, spacing shell, accommodate the lead screw, first bevel gear, second bevel gear, remove the lead screw, spacing section of thick bamboo, stretch a mouthful, the spout, the air inlet tank, miniature air pump, the otter board that admits air, the gas outlet, the check valve, the air inlet, equipment can demolish the combination to the processing product device of inner wall and use, avoid traditional equipment just to need install ejecting device's problem again when handling different products in the use, guarantee the result of use and the quality of use of equipment, improve application performance.
2. Through setting up spring, fender groove, accommodate spindle, output chamber, spacing shell, miniature air pump, air inlet tank, combination shell, draw-in groove, ring fixture block, sealed ring, the intensity and the stability of guaranteeing the connection between the device in the equipment guarantee the normal use function of equipment, improve the result of use of equipment, guarantee the sealed effect in the equipment use, guarantee the normal use of equipment.
Drawings
FIG. 1 is a schematic diagram of the overall front cross-sectional structure of the present invention;
FIG. 2 is an enlarged schematic view of the portion A of FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of the portion B of FIG. 1 according to the present invention;
FIG. 4 is a schematic view of the overall perspective structure of the present invention;
FIG. 5 is a schematic perspective view of a composite shell according to the present invention;
fig. 6 is a schematic perspective view of a lower die of the present invention.
Wherein, 1, upper mould; 2. a lower die; 3. a combination shell; 4. a cavity; 5. a limit groove; 6. a clamping groove; 7. a ventilation port; 8. a blocking groove; 9. a baffle; 10. a spring; 11. an output chamber; 12. a servo motor; 13. a limit shell; 14. adjusting a screw rod; 15. a first bevel gear; 16. a second bevel gear; 17. moving the screw rod; 18. a limiting cylinder; 19. extending the mouth; 20. a chute; 21. an air inlet groove; 22. a micro air pump; 23. an air inlet screen; 24. an air outlet; 25. a check valve; 26. an air inlet; 27. a ring clamping block; 28. sealing the collar.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, based on embodiments of the present invention, which would be within the purview of one of ordinary skill in the art without the inventive effort, are within the scope of the invention as shown in fig. 1-6.
Embodiment one:
the embodiment of the invention provides a powder metallurgy forming die and a method capable of being combined for use, the powder metallurgy forming die comprises an upper die 1 and a lower die 2, a combined shell 3 is arranged on the lower surface of the lower die 2, a cavity 4 is formed in the lower die 2, limit grooves 5 are formed at four corners of the lower surface of the lower die 2, clamping grooves 6 are formed in the lower surface of the lower die 2, a plurality of ventilation ports 7 are formed in the upper side of the inner wall of the cavity 4, baffle grooves 8 are formed in the periphery of the lower side of the inner wall of the lower die 2, sealing devices are arranged in the inner walls of the baffle grooves 8, the sealing devices comprise baffle plates 9 which are rotatably connected to one side of the inner wall of the baffle grooves 8, the baffle plates 9 are of a plate body structure made of nickel-based alloy materials, two springs 10 are fixedly connected to one side surface of the baffle plates 9, output cavities 11 are formed in the inner side of the combined shell 3 and are positioned in the lower sides of the plurality of the limit grooves 5, the inner walls of the plurality of output cavities 11 are respectively provided with an output device, the output device comprises a servo motor 12 fixedly connected to one side of the inner wall of the output cavity 11, a limiting shell 13 is fixedly connected to the lower side of the limiting groove 5 on the upper surface of the combined shell 3, an adjusting screw 14 is fixedly connected to the output end of the servo motor 12, the rod wall of the adjusting screw 14 is fixedly connected with two first bevel gears 15, the left side and the right side of the two first bevel gears 15 are respectively provided with a rotating device, the rotating device comprises a second bevel gear 16 which is meshed and connected to one side surface of the first bevel gears 15, the inner wall of the second bevel gear 16 is fixedly connected with a movable screw 17, a limiting barrel 18 is connected to the rod wall of the movable screw 17 in a threaded manner, an extension 19 is arranged on one side of the inner wall of the limiting shell 13, a chute 20 is arranged on the opposite side of the inner wall of the extension 19, the inner walls of the two sliding grooves 20 are respectively connected with the opposite sides of the wall of the limiting cylinder 18 in a sliding manner through one side surface of the sliding block, the air inlet grooves 21 are formed in the left side surface and the right side surface of the combined shell 3, conveying devices are arranged on the inner walls of the two air inlet grooves 21, each conveying device comprises a miniature air pump 22 fixedly connected to one side of the inner wall of the air inlet groove 21, an air inlet screen 23 is fixedly connected to one side of the inner wall of the air inlet groove 21, a plurality of air outlets 24 are formed in the upper side of the inner wall of the combined shell 3, check valves 25 are fixedly connected to the inner walls of the plurality of air outlets 24, a plurality of air inlets 26 are formed in the lower side of the inner wall of the cavity 4, and the problem that an ejector device needs to be reinstalled when different products are processed in the using process of traditional equipment is avoided, so that the using effect and the using quality of the equipment are guaranteed, and the applicability is improved.
Embodiment two:
the embodiment of the invention provides a powder metallurgy forming die and a method which can be used in combination, and the method is further expanded according to the content in the first embodiment:
wherein, the one end of two corresponding springs 10 all with one side fixed connection of corresponding fender groove 8 inner wall, the upside that a plurality of accommodate lead screws 14 runs through corresponding output cavity 11 inner wall respectively extends to corresponding spacing shell 13 in, and rotate with one side of spacing shell 13 inner wall and be connected, the output of two miniature air pumps 22 runs through the inner wall of corresponding air inlet 21 inner wall one side extension combination shell 3 respectively, the upper surface fixedly connected with of combination shell 3 and draw-in groove 6 assorted ring fixture block 27, the inner wall of ring fixture block 27 is provided with sealed ring 28, guarantee the intensity and the stability of the connection between the device in the equipment, guarantee the normal use function of equipment, improve the result of use of equipment, guarantee the sealed effect in the equipment use, guarantee the normal use of equipment.
Embodiment III:
the embodiment of the invention provides a powder metallurgy forming die and a method which can be used in combination, and the method is further expanded according to the content in the first embodiment:
wherein, the specific steps are as follows; s1, assembling a die, and installing the die to be used into equipment; s2, take out of product, take out the product through the structure, take out through operating personnel, the equipment of the mould in S1 is for the bed die 2 that will need process through joint between draw-in groove 6 and the ring fixture block 27, the in-process spacing groove 5 of joint also contacts with spacing shell 13, just so can the bed die 2 accurately make up between the combination shell 3, the structure in the rethread output chamber 11 is fixed to the bed die 2, servo motor 12 in the output chamber 11 drives the second bevel gear 16 on the first bevel gear 15 through accommodate the lead screw 14 and rotates, the second bevel gear 16 drives the removal that spacing section of thick bamboo 18 kept away from spacing shell 13 through moving lead screw 17, carry out spacing fixed to spacing groove 5 through spacing section of thick bamboo 18, place the product in the bed die 2 like this, carry out the shaping through last mould 1 to the product in the bed die 2, the product in the step of taking out of product is through the gas of miniature air pump 22 output is ejecting the product in the bed die 2, the air outlet 24 on the combination shell 3 carries out, the check valve 25 is the impurity 24 that avoids in the environment influences the equipment, the gas outlet 24 uses in the air inlet 24 to drive the air outlet 24, the removal of product through the normal performance of the equipment through the air inlet 26, the normal use of the equipment of carrying out the product through the output performance of the equipment is guaranteed, the normal use of the quality has been carried out to take out by the quality through the equipment to take out the product through the equipment, and the quality has been used to take out the normal performance has been finished by the quality to the quality finished by the personnel.
Working principle: the equipment needs to make up bed die 2 according to the shape of processing product in the use, bed die 2 passes through the joint between draw-in groove 6 and the ring fixture block 27, in-process draw-in groove 5 and the spacing shell 13 of joint also contact, just so can the accurate combination between bed die 2 and the combination shell 3, the structure in the rethread output chamber 11 is fixed to bed die 2, servo motor 12 in the output chamber 11 drives the second bevel gear 16 on the first bevel gear 15 through accommodate the lead screw 14 and rotates, the second bevel gear 16 drives the removal that spacing section of thick bamboo 18 kept away from spacing shell 13 through moving the lead screw 17, carry out spacing fixed to the draw-in groove 5 through spacing section of thick bamboo 18, place the product in the bed die 2 like this, compress tightly the shaping through last mould 1 to the product in the bed die 2, through the effect of this kind of combination, can guarantee the applicable different product process moulds of equipment, after the product processing, the gas of miniature air pump 22 output carries out the top-out with the product in the bed die 2, miniature air pump 22 carries out pressure gas through the gas outlet 24 on the combination shell 3, check valve 25 is the air outlet 24 in the air outlet 24 carries out, the air inlet 24 on the environment is controlled by the air pump 25 is the air inlet 24, the air inlet 26 is carried out the normal, the product is carried out to the product through the air inlet 4 in the normal operation through the structure, the equipment is not normally is carried out to the product through the equipment is carried out in the normal operation after the quality is finished, the product is normally, the product is finished through the air inlet 4, the product is finished through the equipment is normally, the quality is well finished through the equipment is well quality is well finished, the product is well quality after the product is well quality.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a powder metallurgy forming die that can make up use, includes cope mold (1) and bed mold (2), its characterized in that: the combined type sealing device is characterized in that a combined shell (3) is arranged on the lower surface of the lower die (2), a cavity (4) is formed in the lower die (2), limit grooves (5) are formed in four corners of the lower surface of the lower die (2), clamping grooves (6) are formed in the lower surface of the lower die (2), a plurality of ventilation ports (7) are formed in the upper side of the inner wall of the cavity (4), baffle grooves (8) are formed in the periphery of the lower side of the inner wall of the lower die (2), which is located on the plurality of ventilation ports (7), and sealing devices are arranged on the inner walls of the baffle grooves (8);
the sealing device comprises a baffle plate (9) which is rotationally connected to one side of the inner wall of the baffle groove (8), two springs (10) are fixedly connected to one side surface of the baffle plate (9), an output cavity (11) is formed in the inner portion of the combined shell (3) and located at the lower sides of the limiting grooves (5), and the inner walls of the output cavities (11) are provided with output devices.
2. A powder metallurgy forming die capable of being used in combination according to claim 1, wherein: the output device comprises a servo motor (12) fixedly connected to one side of the inner wall of an output cavity (11), a limiting shell (13) is fixedly connected to the lower side of the limiting groove (5) on the upper surface of the combined shell (3), an adjusting screw (14) is fixedly connected to the output end of the servo motor (12), two first bevel gears (15) are fixedly connected to the rod wall of the adjusting screw (14), and rotating devices are arranged on the left side and the right side of each first bevel gear (15).
3. A powder metallurgy forming die capable of being used in combination according to claim 2, wherein: the rotating device comprises a second bevel gear (16) which is connected to one side surface of a first bevel gear (15) in a meshed mode, a movable screw rod (17) is fixedly connected to the inner wall of the second bevel gear (16), a limiting cylinder (18) is connected to the rod wall of the movable screw rod (17) in a threaded mode, a stretching opening (19) is formed in one side of the inner wall of the limiting shell (13) and located on one side of the limiting cylinder (18), sliding grooves (20) are formed in the opposite side of the inner wall of the stretching opening (19), two sliding grooves (20) are formed in the inner wall of the sliding grooves (20) through one side surface of a sliding block respectively and are connected with the opposite side of the wall of the limiting cylinder (18) in a sliding mode, air inlet grooves (21) are formed in the surfaces of the left side and the right side of the combined shell (3), and conveying devices are arranged on the inner walls of the two air inlet grooves (21).
4. A powder metallurgy forming die capable of being used in combination according to claim 3, wherein: the conveying device comprises a miniature air pump (22) fixedly connected to one side of the inner wall of the air inlet groove (21), one side of the inner wall of the air inlet groove (21) is fixedly connected with an air inlet screen plate (23), a plurality of air outlets (24) are formed in the upper side of the inner wall of the combined shell (3), check valves (25) are fixedly connected to the inner wall of the air outlets (24), and a plurality of air inlets (26) are formed in the lower side of the inner wall of the cavity (4).
5. A powder metallurgy forming die capable of being used in combination according to claim 4, wherein: one ends of the two corresponding springs (10) are fixedly connected with one side of the inner wall of the corresponding blocking groove (8), the upper ends of the plurality of adjusting screw rods (14) penetrate through the upper side of the inner wall of the corresponding output cavity (11) respectively and extend into the corresponding limiting shell (13), the upper ends of the adjusting screw rods are rotatably connected with one side of the inner wall of the limiting shell (13), and the output ends of the two miniature air pumps (22) penetrate through the inner wall of the corresponding air inlet groove (21) respectively and extend into the inner wall of the combined shell (3).
6. A powder metallurgy forming die capable of being used in combination according to claim 1, wherein: the upper surface of the combined shell (3) is fixedly connected with a ring clamping block (27) matched with the clamping groove (6), and a sealing ring (28) is arranged on the inner wall of the ring clamping block (27).
7. The application method of the powder metallurgy forming die capable of being used in a combined mode is characterized by comprising the following steps of: the specific steps are as follows;
s1, assembling a die, and installing the die to be used into equipment;
s2, taking out the product, ejecting the product through the structure, and taking out the product through an operator.
8. The method for using a powder metallurgy forming die capable of being used in combination according to claim 7, wherein the method comprises the following steps of: the assembly of mould in S1 is with lower mould (2) that will process through joint between draw-in groove (6) and the ring fixture block (27), in-process spacing groove (5) and spacing shell (13) of joint also contact, just so can the accurate combination between lower mould (2) and combination shell (3), the structure in rethread output chamber (11) is fixed lower mould (2), servo motor (12) in output chamber (11) drive second bevel gear (16) on first bevel gear (15) through accommodate the lead screw (14) and rotate, second bevel gear (16) drive the removal that spacing shell (13) was kept away from through moving lead screw (17), carry out spacing fixed to spacing groove (5) through spacing barrel (18), place the product in lower mould (2) like this, compress tightly the shaping through last mould (1) to the product in the lower mould (2).
9. The method for using a powder metallurgy forming die capable of being used in combination according to claim 7, wherein the method comprises the following steps of: the product in S2 is taken out and is pushed out with the product in the lower mould (2) through the gas of miniature air pump (22) output, miniature air pump (22) are carried out pressure gas through gas outlet (24) on combination shell (3), check valve (25) are the normal use that avoids impurity in the environment to influence equipment, gas that gas outlet (24) output enters into in cavity (4) through air inlet (26), the gas in cavity (4) is pushed out to the product when going out through ventilative mouth (7) output, then rethread operating personnel takes out the product and has finished the processing of product so far.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211403871.9A CN116037922A (en) | 2022-11-10 | 2022-11-10 | Powder metallurgy forming die capable of being used in combination and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211403871.9A CN116037922A (en) | 2022-11-10 | 2022-11-10 | Powder metallurgy forming die capable of being used in combination and method |
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| Publication Number | Publication Date |
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| CN116037922A true CN116037922A (en) | 2023-05-02 |
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|---|---|---|---|
| CN202211403871.9A Pending CN116037922A (en) | 2022-11-10 | 2022-11-10 | Powder metallurgy forming die capable of being used in combination and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117206520A (en) * | 2023-11-08 | 2023-12-12 | 江苏华力精密机械有限公司 | Powder forming equipment for precise metal |
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2022
- 2022-11-10 CN CN202211403871.9A patent/CN116037922A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117206520A (en) * | 2023-11-08 | 2023-12-12 | 江苏华力精密机械有限公司 | Powder forming equipment for precise metal |
| CN117206520B (en) * | 2023-11-08 | 2024-02-09 | 江苏华力精密机械有限公司 | Powder forming equipment for precise metal |
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