CN105345010A - Preparing method for electric connector molded through powder injection - Google Patents
Preparing method for electric connector molded through powder injection Download PDFInfo
- Publication number
- CN105345010A CN105345010A CN201510833774.7A CN201510833774A CN105345010A CN 105345010 A CN105345010 A CN 105345010A CN 201510833774 A CN201510833774 A CN 201510833774A CN 105345010 A CN105345010 A CN 105345010A
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- electric connector
- binding agent
- powder injection
- insulation
- degreasing
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- Pending
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- 239000000843 powder Substances 0.000 abstract description 26
- 239000011230 binding agent Substances 0.000 abstract description 18
- 238000005238 degreasing Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 13
- 239000002184 metal Substances 0.000 abstract description 9
- 238000001746 injection moulding Methods 0.000 abstract description 8
- 239000002904 solvent Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000003350 kerosene Substances 0.000 abstract description 5
- 238000005245 sintering Methods 0.000 abstract description 5
- 239000008187 granular material Substances 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000005469 granulation Methods 0.000 abstract 1
- 230000003179 granulation Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 16
- 239000002270 dispersing agent Substances 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 10
- 239000000314 lubricant Substances 0.000 description 8
- 239000008188 pellet Substances 0.000 description 8
- -1 polyethylene Polymers 0.000 description 7
- 239000000428 dust Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000002202 Polyethylene glycol Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 235000021355 Stearic acid Nutrition 0.000 description 4
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 4
- 239000004203 carnauba wax Substances 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 4
- 239000012188 paraffin wax Substances 0.000 description 4
- 239000004014 plasticizer Substances 0.000 description 4
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229920001223 polyethylene glycol Polymers 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 239000008117 stearic acid Substances 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
- B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
-
- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
-
- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/103—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing an organic binding agent comprising a mixture of, or obtained by reaction of, two or more components other than a solvent or a lubricating agent
-
- 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
- B22F3/10—Sintering only
- B22F3/1017—Multiple heating or additional steps
- B22F3/1021—Removal of binder or filler
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Producing Shaped Articles From Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a preparing method for an electric connector molded through powder injection. The preparing method for the electric connector molded through powder injection sequentially comprises the following steps that granulation is carried out, wherein metal powder and a binding agent are blended through an internal mixer to become granules with a rheological property; injection molding is carried out, wherein the granules are injected into a mold cavity in the shape of the electric connector to form a blank; degreasing is carried out, wherein part of the binding agent in the blank is removed, and aviation kerosene serves as a degreasing solvent; and sintering is carried out, wherein the binding agent is removed, and the electric connector is obtained. The preparing method for the electric connector molded through powder injection has the beneficial effects that the degreasing rate is high, product performance is good, and production cost is low.
Description
Technical field
The present invention relates to a kind of preparation method of electric connector of metal powder injection molding.
Background technology
The electric connector of traditional 3D shape complexity generally adopts 316L stainless steel material to make, production will pass through a series of equipment investment, such as machining center, punch press, milling machine, accurate puncher, Linear cut etc., the equipment needing input a large amount of is artificial, there is the problem of the low waste resource of production cost high yield, especially due to electric connector 3D shape complexity, therefore difficulty of processing is high, metallic powder injection moulding process is adopted to solve the problem, but adopt metallic powder injection moulding process easily to affect the performance of product due to the problem of degreasing rate.
Summary of the invention
The object of the invention is to provide a kind of degreasing rate high, good product performance, the preparation method of the powder injection-molded electric connector that production cost is low.
In order to realize foregoing invention object, present invention employs following technical scheme:
The preparation method of powder injection-molded electric connector, step comprises the following steps successively:
(1) granulate, metal dust and binding agent are undertaken blended by banbury, becomes the pellet with rheological characteristic; By pellet mass ratio, metal dust is 92.5%, and binding agent is 7.5%; Metal dust is mixed by following component in mass ratio: Cr17.079%, Ni13.235%, Mn0.207%, Si0.417%, Mo2.532%, C0.022%, P0.017%, S0.015%, surplus are Fe; Binding agent is mixed by following component: binding agent is mixed by following component: palm wax, vinyl acetate, paraffin, stearic acid, polyethylene, polypropylene, polyethylene glycol, polyvinyl butyral resin;
(2) injection moulding, injects the mold cavity with electric connector shape by pellet and forms blank;
(3) degreasing, removes the portion of binder in blank; Degreasing solvent is aviation kerosine;
(4) sinter, remove binding agent, obtain electric connector; Sintering process curve is as follows: room temperature starts to be heated to 400 DEG C, and insulation, is then heated to 600 DEG C from 400 DEG C, insulation, then is heated to 1150 DEG C from 600 DEG C, and insulation, is then heated to 1380 DEG C, and insulation, Ran Hou Sui stove is chilled to 90 DEG C of-110 DEG C of blow-ons.
As preferably, banburying temperature 180 degree, banburying after 3 hours naturally cooling obtain the mobility of pellet, through screw extruder extrusion granulator.
As preferably, use debinding furnace degreasing, debinding furnace internal solvent temperature is 45 DEG C-60 DEG C.
As preferably, room temperature starts to heat 3 DEG C/min to 400 DEG C, temperature retention time 1 hour, then from 400 DEG C of heating 3 DEG C/min to 600 DEG C of insulation 30min, again from 600 DEG C of heating 5 DEG C/min to 1150 DEG C of insulation 20-30min, then be heated to 1380 DEG C of insulations 2 hours, Ran Hou Sui stove is chilled to 100 DEG C of blow-ons.
As preferably, binding agent is mixed by following component: palm wax 8.5%, vinyl acetate 5.5%, stearic acid 6%, polyethylene 12%, polypropylene 7%, polyethylene glycol 9.5%, polyvinyl butyral resin 6.5%, surplus are paraffin.
Have employed the preparation method of the powder injection-molded electric connector of technique scheme, palm wax and paraffin are as dispersant, dispersant can improve the interaction between powder and polymer, strengthening powder disperses in the polymer, the object of dispersant is arranged in medium equably by powder particle to remove, to improve powder surface performance, destroy aggregate, in shaping preparation process except raising powder in media as well dispersive property, dispersant can also improve useful load and the shaping green strength of powder, and can not the mobility of deteriorated mixture.Vinyl acetate and polyvinyl butyral resin are as stabilizing agent, and stabilizing agent makes molding structure uniform and stable for a long time.Polypropylene, polyethylene and polyethylene glycol are as plasticizer, and plasticizer increases molded plastic, changes shaping rheological behaviour.Stearic acid is as lubricant, and lubricant reduces various rubbing action.Degreasing solvent adopts aviation kerosine, and the extrusion rate of dispersant and lubricant reaches 98%.Aviation kerosine degreasing is stripped of dispersant and the lubricant of 98%, make between each powder, to have had certain gap so greatly accelerate the speed of sintering thermal debinding in early stage, in the process of insulation 400 DEG C time, dispersant and lubricant are removed totally, in the process of 600 DEG C of insulations, stabilizing agent and plasticizer are removed, in the process of 1150 DEG C of insulations, remove remained binding agent be completely warmed up to 1380 DEG C of insulations again, make product reach stainless steel material 98% to 100% density and other performance.Adopt the powder injection-molded electric connector that above-mentioned preparation method obtains, its performance parameter is as follows: density:>=7.9g/cm
3; Yield strength:>=260MPa; Hot strength:>=510MPa; Percentage elongation:>=28%; Hardness: 300HV10.In sum, the advantage of the preparation method of this powder injection-molded electric connector is that degreasing rate is high, and good product performance, production cost is low.
Detailed description of the invention
The following specific embodiments of the present invention is to make a detailed explanation.
The preparation method of powder injection-molded electric connector, step comprises the following steps successively:
(1) granulate, undertaken blended, banburying temperature 180 degree by metal dust and binding agent by banbury, banburying cools the mobility obtaining pellet naturally after 3 hours, through screw extruder extrusion granulator, become the pellet with rheological characteristic; By pellet mass ratio, metal dust is 92.5%, and binding agent is 7.5%; Metal dust is mixed by following component in mass ratio: Cr17.079%, Ni13.235%, Mn0.207%, Si0.417%, Mo2.532%, C0.022%, P0.017%, S0.015%, surplus are Fe; Binding agent is mixed by following component: palm wax 8.5%, vinyl acetate 5.5%, stearic acid 6%, polyethylene 12%, polypropylene 7%, polyethylene glycol 9.5%, polyvinyl butyral resin 6.5%, surplus are paraffin;
(2) injection moulding, injects the mold cavity with electric connector shape by pellet and forms blank; Injection moulding can be produced with common plastic machine, and require that screw rod hardness is large, gun barrel temperature 1 section 155 DEG C, 2 sections 165 DEG C, 3 sections 170 DEG C, nozzle temperature 175 DEG C, mold temperature 45 DEG C-65 DEG C, screw speed 50min, buffering is apart from 10cm
3/ S, locked mode pressure 900bar, pressurize 900bar, dwell time 3s, back pressure 0bar.Avoid injection temperature more than 190 DEG C as far as possible, notice mold temperature can not higher than 70 DEG C simultaneously.During beginning, screw rod first-selection uses low-shearing force, and pressure ratio is 1.6:1, maximum pressure than for 2:1 because pressure crosses conference make blank demoulding difficulty, the problem appearance such as the serious and die wear of burr;
(3) degreasing, removes the portion of binder in blank; Use debinding furnace degreasing, degreasing solvent is aviation kerosine, stove internal solvent temperature 45 C-60 DEG C, solvent flow rate 30ml/h, and the extrusion rate of dispersant and lubricant is 98%;
(4) sinter, remove binding agent, obtain electric connector; Room temperature starts to heat 3 DEG C/min to 400 DEG C, temperature retention time 1 hour, then from 400 DEG C of heating 3 DEG C/min to 600 DEG C of insulation 30min, then from 600 DEG C of heating 5 DEG C/min to 1150 DEG C of insulation 20-30min, then be heated to 1380 DEG C of insulations 2 hours, Ran Hou Sui stove is chilled to about 100 DEG C blow-ons.Due to solvent degreasing in early stage be stripped of 98% dispersant and lubricant make between product powder and powder, to have had certain gap thus greatly accelerate sinter early stage thermal debinding speed, at 400 DEG C, in the temperature retention time process of 1 hour, dispersant and lubricant are removed totally.In 600 DEG C of insulations process of 30 minutes, stabilizing agent and plasticizer are removed, 1150 DEG C of insulations within 20 minutes, to remove completely in process in product the adhesive that remains, then be warmed up to 1380 degree and be incubated and within 2 hours, reach or close to the density of stainless steel material and other performance.
Adopt the powder injection-molded electric connector that above-mentioned preparation method obtains, its performance parameter is as follows: sintering post-shrinkage ratio: about 1.178; Density: 8g/cm
3; Yield strength: 262MPa; Hot strength: 512MPa; Percentage elongation: 29%; Hardness: 300HV10 (30HRC).The electric connector performance parameter of traditional 316L stainless steel material is as follows: density:>=8.03g/cm
3; Yield strength:>=310MPa; Hot strength>=620MPa; Percentage elongation:>=30%; Hardness: 300HV10 (30HRC).Said method solves the complex-shaped electric connector need of production large number quipments of conventional three-dimensional and drops into, and solves difficulty of processing large, and 3D shape is complicated, and precision is low waits series of problems.Advantage is that processing technology is simple, with short production cycle, stable performance, by mould one-shot forming, and degreasing, sintering.Have employed metallic powder injection moulding process, adopt above-mentioned metal powder component and binder component, coordinate above-mentioned technique, namely solve the problem of the performance easily affecting product due to binding agent degreasing rate, also ensure that the electric connector of the performance parameters of electric connector close to traditional 316L stainless steel material.
Claims (5)
1. the preparation method of powder injection-molded electric connector, is characterized in that step comprises the following steps successively:
(1) granulate, metal dust and binding agent are undertaken blended by banbury, becomes the pellet with rheological characteristic; By pellet mass ratio, metal dust is 92.5%, and binding agent is 7.5%; Metal dust is mixed by following component in mass ratio: Cr17.079%, Ni13.235%, Mn0.207%, Si0.417%, Mo2.532%, C0.022%, P0.017%, S0.015%, surplus are Fe; Binding agent is mixed by following component: binding agent is mixed by following component: palm wax, vinyl acetate, paraffin, stearic acid, polyethylene, polypropylene, polyethylene glycol, polyvinyl butyral resin;
(2) injection moulding, injects the mold cavity with electric connector shape by pellet and forms blank;
(3) degreasing, removes the portion of binder in blank; Degreasing solvent is aviation kerosine;
(4) sinter, remove binding agent, obtain electric connector; Sintering process curve is as follows: room temperature starts to be heated to 400 DEG C, and insulation, is then heated to 600 DEG C from 400 DEG C, insulation, then is heated to 1150 DEG C from 600 DEG C, and insulation, is then heated to 1380 DEG C, and insulation, Ran Hou Sui stove is chilled to 90 DEG C of-110 DEG C of blow-ons.
2. the preparation method of powder injection-molded electric connector according to claim 1, is characterized in that banburying temperature 180 degree, and banburying cools the mobility obtaining pellet naturally after 3 hours, through screw extruder extrusion granulator.
3. the preparation method of powder injection-molded electric connector according to claim 1, it is characterized in that using debinding furnace degreasing, debinding furnace internal solvent temperature is 45 DEG C-60 DEG C.
4. the preparation method of powder injection-molded electric connector according to claim 1, it is characterized in that room temperature starts to heat 3 DEG C/min to 400 DEG C, temperature retention time 1 hour, then from 400 DEG C of heating 3 DEG C/min to 600 DEG C of insulation 30min, again from 600 DEG C of heating 5 DEG C/min to 1150 DEG C of insulation 20-30min, then be heated to 1380 DEG C of insulations 2 hours, Ran Hou Sui stove is chilled to 100 DEG C of blow-ons.
5. the preparation method of powder injection-molded electric connector according to claim 1, is characterized in that binding agent is mixed by following component: palm wax 8.5%, vinyl acetate 5.5%, stearic acid 6%, polyethylene 12%, polypropylene 7%, polyethylene glycol 9.5%, polyvinyl butyral resin 6.5%, surplus are paraffin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510833774.7A CN105345010A (en) | 2015-11-25 | 2015-11-25 | Preparing method for electric connector molded through powder injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510833774.7A CN105345010A (en) | 2015-11-25 | 2015-11-25 | Preparing method for electric connector molded through powder injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105345010A true CN105345010A (en) | 2016-02-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510833774.7A Pending CN105345010A (en) | 2015-11-25 | 2015-11-25 | Preparing method for electric connector molded through powder injection |
Country Status (1)
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| CN (1) | CN105345010A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000204402A (en) * | 1999-01-13 | 2000-07-25 | Komatsu Ltd | Aqueous solvent extraction from powder injection-formed body |
| JP2012197475A (en) * | 2011-03-18 | 2012-10-18 | Kanto Yakin Kogyo Co Ltd | Microwave degreasing apparatus and microwave degreasing method |
| CN104559840A (en) * | 2014-11-27 | 2015-04-29 | 东莞劲胜精密组件股份有限公司 | Adhesive for powder injection forming and application method thereof |
| CN104668565A (en) * | 2015-01-04 | 2015-06-03 | 东莞劲胜精密组件股份有限公司 | Powder injection molding feedstock preparing method and powder injection molding method |
| CN104785785A (en) * | 2015-04-01 | 2015-07-22 | 宝得粉末注射成形（常熟）有限公司 | Machining method for swing cam for car steering control system |
| CN104801714A (en) * | 2015-03-24 | 2015-07-29 | 青岛科技大学 | Manufacturing method of gas cutting opening |
| CN104860684A (en) * | 2015-05-26 | 2015-08-26 | 北京科技大学 | Adhesive agent for injection molding of aluminum nitride ceramic and application method of adhesive agent |
| CN104907565A (en) * | 2015-04-23 | 2015-09-16 | 上海精科粉末冶金科技有限公司 | Method for processing special-shaped SKD11 part |
-
2015
- 2015-11-25 CN CN201510833774.7A patent/CN105345010A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000204402A (en) * | 1999-01-13 | 2000-07-25 | Komatsu Ltd | Aqueous solvent extraction from powder injection-formed body |
| JP2012197475A (en) * | 2011-03-18 | 2012-10-18 | Kanto Yakin Kogyo Co Ltd | Microwave degreasing apparatus and microwave degreasing method |
| CN104559840A (en) * | 2014-11-27 | 2015-04-29 | 东莞劲胜精密组件股份有限公司 | Adhesive for powder injection forming and application method thereof |
| CN104668565A (en) * | 2015-01-04 | 2015-06-03 | 东莞劲胜精密组件股份有限公司 | Powder injection molding feedstock preparing method and powder injection molding method |
| CN104801714A (en) * | 2015-03-24 | 2015-07-29 | 青岛科技大学 | Manufacturing method of gas cutting opening |
| CN104785785A (en) * | 2015-04-01 | 2015-07-22 | 宝得粉末注射成形（常熟）有限公司 | Machining method for swing cam for car steering control system |
| CN104907565A (en) * | 2015-04-23 | 2015-09-16 | 上海精科粉末冶金科技有限公司 | Method for processing special-shaped SKD11 part |
| CN104860684A (en) * | 2015-05-26 | 2015-08-26 | 北京科技大学 | Adhesive agent for injection molding of aluminum nitride ceramic and application method of adhesive agent |
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Application publication date: 20160224 |