CN106624634B - A kind of production method of high-specific gravity tungsten alloy autoplugger - Google Patents
A kind of production method of high-specific gravity tungsten alloy autoplugger Download PDFInfo
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- CN106624634B CN106624634B CN201611115318.XA CN201611115318A CN106624634B CN 106624634 B CN106624634 B CN 106624634B CN 201611115318 A CN201611115318 A CN 201611115318A CN 106624634 B CN106624634 B CN 106624634B
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- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The present invention relates to a kind of production methods of high-specific gravity tungsten alloy autoplugger.The method that purpose is to provide should have the characteristics that simple for process, production efficiency is high and production cost is relatively low.Technical solution is：A kind of production method of high-specific gravity tungsten alloy autoplugger, carries out in the order：Hammer plate is made using metal machine tooling, and makes tungsten alloy hammer body, hammer plate is press-fitted with tungsten alloy hammer body finally and is integrated, that is, obtains high-specific gravity tungsten alloy autoplugger；The making of the hammer body, sequentially includes the following steps：1) injection molding technique prepares circular tungsten green body；2) binder is removed；3) it is sintered；4) molten to ooze proof gold；5) tungsten billon annulus is cut in half, sanding and polishing is to get semi-annular shape tungsten alloy hammer body.
Description
Technical field
The present invention relates to a kind of production methods of clock and watch part, the specifically production method of autoplugger.
Background technology
Autoplugger is the vital part in mechanical automatic watch on system.Conventional autoplugger (referring to Fig. 1, Fig. 2)
Hammer body 2 including fan-shaped hammer plate 1 and with the semi-circular shape of the hammer mutually embedding connection of edges of boards edge；The front for hammering plate into shape is the essence as decoration
Facing 3, the entire edge for hammering plate into shape are formed with toward hammer back semi-annular shape flange outstanding, and the entire edge of hammer body is formed with opening
The semi-annular shape groove closed towards finish face and with the flange phase scarf.The tungsten alloy of hammer body generally use heavy amount is made,
Then decorated in tungsten alloy surface gold-plating using electroplating technology.The above processing method there are the shortcomings that, first, coating is thin, no
Conducive to follow-up polishing treatment；But electroplating gold, surface layer obfuscation, low in glossiness；Third, plating generates pollution, environmental issue is brought；
Fourth, gold utilization rate is not high (hammer body is small, electroplating bath volume is big).Moreover, hammer body uses compression moulding, need to do larger
Green body, it is low that there are stock utilizations, the small defect of finished product density.In addition, the investment of process equipment is larger, production cost compared with
Height, production efficiency are also difficult to improve.
Invention content
It is an object of the invention to overcome the shortcomings of background above technology, a kind of preparation method of autoplugger, the party are provided
Method should have the characteristics that simple for process, production efficiency is high and production cost is relatively low.
Technical solution provided by the invention is：
A kind of production method of high-specific gravity tungsten alloy autoplugger, carries out in the order：
Hammer plate is made using metal machine tooling, and makes tungsten alloy hammer body, is finally press-fitted hammer plate with tungsten alloy hammer body
It is integrated, that is, obtains high-specific gravity tungsten alloy autoplugger；
The making of the hammer body, sequentially includes the following steps：
1) injection molding technique prepares circular tungsten green body
Tungsten powder and paraffin based binder are mixed into the feeding of high solids content, good fluidity, then by injection molding machine in mould
It is injection moulded in tool, the circular tungsten green body of acquisition one, the weight ratio of tungsten powder and paraffin based binder is 4-6: 1；The annular shape
Tungsten green body is identical to the semi-annular shape hammer body structure of spelling as two；
2) binder is removed
Circular tungsten green body obtained is immersed in acetone and is handled 48-96 hours so that the big portion in circular tungsten green body
Paraffin based binder is divided to be dissolved in acetone liquid；
The circular tungsten green body that aforementioned acetone treatment is crossed is placed in 300-950 DEG C and there is the thermal debinding of hydrogen shield atmosphere
It is handled 8-15 hours in stove so that remaining paraffin based binder decomposes removing, and reticulated void is formed inside circular tungsten basal body；
3) it is sintered
By step 2), treated that circular tungsten green body is sintered under nonoxidizing atmosphere, under 1500~23000C temperature conditions
To get circular sintered state tungsten basal body, density is the 70-90% of the density of tungsten within 1-4 hours；
4) molten to ooze proof gold
10~30% commercially available proof gold of sintered state tungsten basal body quality is rolled into 50-500 microns of thick goldleaf, and is stacked
In the top of above-mentioned sintered state tungsten basal body, under nonoxidizing atmosphere, 1300~1500030~240 points are kept the temperature under C temperature conditions
Clock；Then room temperature is cooled to get the tungsten billon annulus of gold content 10~30% with stove；
5) tungsten billon annulus is cut in half, sanding and polishing is to get semi-annular shape tungsten alloy hammer body.
Tungsten powder in the step 1) is the commercially available pure tungsten powder of purity 99.5%, using ball milling 10-15 hours, tungsten powder
Average particle diameter is 3.5-4.0um.
The step 4) is molten when oozing proof gold processing, and the bottom end surface and surrounded surface of sintered state tungsten basal body are served as a contrast with template
Support is lost in preventing the liquid gold melted from oozing out.
The invention has the advantages that：
1, high (density is more than 19.2 gram per centimeters for tungsten alloy hammer body even tissue produced by the present invention, densification degree3),
Hammer body gold layer quality is soft, and surface can be remarkably reinforced by polishing the various decorative decorative patterns of acquisition and having good gloss
The decorative effect and class of clock and watch.
2, the preparation method of tungsten alloy hammer body provided by the invention is simple for process, easy to operate, stock utilization height (tungsten base
Body is injection molded into dead size molding, thus is lost low), moreover it is possible to significantly improve production efficiency (the circular tungsten base of preparation therein
The injection moulding of body uses injection molding machine and mold, is easy to produce in enormous quantities)；And craft of gilding is avoided, good environmental protection.
Description of the drawings
Fig. 1 is the main structure diagram of high-specific gravity tungsten alloy autoplugger.
Fig. 2 is the left view structural representation of high-specific gravity tungsten alloy autoplugger.
Specific implementation method
The invention will be further described for following embodiment, but the implementation of the present invention is not limited only to this.
Embodiment one
A kind of production method of high-specific gravity tungsten alloy autoplugger, carries out in the order：
Hammer plate is made using metal machine tooling, and makes tungsten alloy hammer body, is finally press-fitted hammer plate with tungsten alloy hammer body
It is integrated, that is, obtains high-specific gravity tungsten alloy autoplugger；
It is described as follows using the step of gold process makes hammer body is melted：
Step 1 produces circular tungsten green body
Take the commercially available pure tungsten powders of 40g, the average particle diameter about 3.8um of tungsten powder, purity 99.5%；It is bonded with 10g paraffinic bases
Agent be mixed to prepare be uniformly dispersed, the feeding of good fluidity, be injection moulded in a mold by injection molding machine, a circular tungsten base be made
Body；The annular shape tungsten green body is identical to the semi-annular shape hammer body structure of spelling as two；
Step 2 removes binder
Circular tungsten green body obtained is immersed in acetone and is handled 96 hours so that about 80% stone in circular tungsten green body
Wax-based binder is dissolved in acetone liquid；Circular tungsten green body above-mentioned is placed in 600 DEG C again and there is hydrogen shield atmosphere
8 hours in thermal debinding furnace so that remaining paraffin based binder decomposes volatilization, and reticulated void is formed inside circular tungsten green body；
Step 3 produces circular sintered state tungsten basal body
By step 2 treated circular tungsten green body in the sintering furnace with hydrogen shield atmosphere, in 15000C temperature
Furnace cooling after lower sintering 2 hours is taken out up to circular sintered state tungsten basal body, and the density of the sintered state tungsten basal body is
13.51g/cm3, density is about the 70% of the density of tungsten；
Step 4 is molten to ooze proof gold
The commercially available proof gold in 30% i.e. 12 gram for taking circular sintered state tungsten basal body weight, makes into 300 microns of thick goldleaf,
It is stacked in the top of the sintered state tungsten basal body of the annular shape, is placed in together in hydrogen shield sintering furnace, the bottom of sintered state tungsten basal body
End surfaces and surrounded surface are set off with template；13000It is handled under C 30 minutes, then furnace cooling is taken out to get containing gold
30% tungsten billon annulus；
5) tungsten billon annulus is cut in half, sanding and polishing is to get tungsten alloy hammer body.
Embodiment two
A kind of production method of high-specific gravity tungsten alloy autoplugger, carries out in the order：
Hammer plate is made using metal machine tooling, and makes tungsten alloy hammer body, is finally press-fitted hammer plate with tungsten alloy hammer body
It is integrated, that is, obtains high-specific gravity tungsten alloy autoplugger；
It is described as follows using the step of gold process makes hammer body is melted：
Step 1 produces circular tungsten green body
Take the commercially available pure tungsten powders of 40g, the average particle diameter about 3.8um of tungsten powder, purity 99.5%；It is bonded with 10g paraffinic bases
Agent be mixed to prepare be uniformly dispersed, the feeding of good fluidity, be injection moulded in a mold by injection molding machine, a circular tungsten base be made
Body；The annular shape tungsten green body is identical to the semi-annular shape hammer body structure of spelling as two；
Step 2 removes binder
Circular tungsten green body obtained is immersed in acetone and is handled 72 hours so that about 75% stone in circular tungsten green body
Wax-based binder is dissolved in acetone liquid；Circular tungsten green body above-mentioned is placed in 500 DEG C again and there is hydrogen shield atmosphere
15 hours in thermal debinding furnace so that remaining paraffin based binder decomposes volatilization, and reticulated void is formed inside circular tungsten green body；
Step 3 produces circular sintered state tungsten basal body
By step 2 treated circular tungsten green body in the sintering furnace with hydrogen shield atmosphere, in 19000C temperature
Furnace cooling after lower sintering 1 hour is taken out up to circular sintered state tungsten basal body, and the density of the sintered state tungsten basal body is
15.44g/cm3, density is about the 80% of the density of tungsten；
Step 4 is molten to ooze proof gold
The commercially available proof gold in 20% i.e. 8 gram for taking circular sintered state tungsten basal body weight, makes into 250 microns of thick goldleaf,
It is stacked in the top of the sintered state tungsten basal body of the annular shape, is placed in together in hydrogen shield sintering furnace, the bottom of sintered state tungsten basal body
End surfaces and surrounded surface are set off with template；14000Handle 120 minutes under C, then furnace cooling take out to get containing
The tungsten billon annulus of gold 20%；
5) tungsten billon annulus is cut in half, sanding and polishing is to get tungsten alloy hammer body.
Embodiment three
A kind of production method of high-specific gravity tungsten alloy autoplugger, carries out in the order：
Hammer plate is made using metal machine tooling, and makes tungsten alloy hammer body, is finally press-fitted hammer plate with tungsten alloy hammer body
It is integrated, that is, obtains high-specific gravity tungsten alloy autoplugger；
It is described as follows using the step of gold process makes hammer body is melted：
Step 1 produces circular tungsten green body
Take the commercially available pure tungsten powders of 40g, the average particle diameter about 3.8um of tungsten powder, purity 99.5%；It is bonded with 10g paraffinic bases
Agent be mixed to prepare be uniformly dispersed, the feeding of good fluidity, be injection moulded in a mold by injection molding machine, a circular tungsten base be made
Body；The annular shape tungsten green body is identical to the semi-annular shape hammer body structure of spelling as two；
Step 2 removes binder
Circular tungsten green body obtained is immersed in acetone and is handled 50 hours so that about 70% stone in circular tungsten green body
Wax-based binder is dissolved in acetone liquid；Circular tungsten green body above-mentioned is placed in 850 DEG C again and there is hydrogen shield atmosphere
12 hours in thermal debinding furnace so that remaining paraffin based binder decomposes volatilization, and reticulated void is formed inside circular tungsten green body；
Step 3 produces circular sintered state tungsten basal body
By step 2 treated circular tungsten green body in the sintering furnace with hydrogen shield atmosphere, in 23000C temperature
Furnace cooling after lower sintering 4 hours is taken out up to circular sintered state tungsten basal body, and the density of the sintered state tungsten basal body is
17.37g/cm3, density is about the 90% of the density of tungsten；
Step 4 is molten to ooze proof gold
The commercially available proof gold in 10% i.e. 4 gram for taking circular sintered state tungsten basal body weight, makes into 500 microns of thick goldleaf,
It is stacked in the top of the sintered state tungsten basal body of the annular shape, is placed in together in hydrogen shield sintering furnace, the bottom of sintered state tungsten basal body
End surfaces and surrounded surface are set off with template；Handle 240 minutes at 15000C, then furnace cooling take out to get containing
The tungsten billon annulus of gold 10%；
5) tungsten billon annulus is cut in half, sanding and polishing is to get tungsten alloy hammer body.
Claims (3)
1. a kind of production method of high-specific gravity tungsten alloy autoplugger, carries out in the order：
Hammer plate is made using metal machine tooling, and makes tungsten alloy hammer body, it is one to be finally press-fitted hammer plate with tungsten alloy hammer body
Body obtains high-specific gravity tungsten alloy autoplugger；
The making of the hammer body, sequentially includes the following steps：
1) injection molding technique prepares circular tungsten green body
Tungsten powder and paraffin based binder are mixed into feeding, are then injection moulded in a mold by injection molding machine, an annulus is obtained
The weight ratio of shape tungsten green body, tungsten powder and paraffin based binder is 4-6: 1；The annular shape tungsten green body and two semicircular rings to spelling
Shape hammer body structure is identical；
2) binder is removed
Circular tungsten green body obtained is immersed in acetone and is handled 48-96 hours so that most of stone in circular tungsten green body
Wax-based binder is melted into acetone liquid；
The circular tungsten green body that aforementioned acetone treatment is crossed is placed in 300-950 DEG C and is had in the thermal debinding furnace of hydrogen shield atmosphere
Processing 8-15 hours so that remaining paraffin based binder decomposes removing, and reticulated void is formed inside circular tungsten basal body；
3) it is sintered
By step 2), treated that circular tungsten green body is sintered 1-4 under nonoxidizing atmosphere, under 1500~2300 DEG C of temperature conditions
Hour, density was the 70-90% of the density of tungsten to get circular sintered state tungsten basal body；
4) molten to ooze proof gold
10~30% commercially available proof gold of sintered state tungsten basal body quality is rolled into 50-500 microns of thick goldleaf, and is stacked in
The top for stating sintered state tungsten basal body keeps the temperature 30~240 minutes under nonoxidizing atmosphere, under 1300~1500 DEG C of temperature conditions；So
Room temperature is cooled to get the tungsten billon annulus of gold content 10~30% with stove afterwards；
5) tungsten billon annulus is cut in half, sanding and polishing is to get semi-annular shape tungsten alloy hammer body.
2. the production method of high-specific gravity tungsten alloy autoplugger according to claim 1, it is characterised in that：
Tungsten powder in the step 1) is the commercially available pure tungsten powder of purity 99.5%, and using ball milling 10-15 hours, tungsten powder was averaged
Particle diameter is 3.5-4.0um.
3. the production method of high-specific gravity tungsten alloy autoplugger according to claim 2, it is characterised in that：The step 4) is molten
When oozing proof gold processing, the bottom end surface and surrounded surface of sintered state tungsten basal body are set off with template, to prevent the liquid melted
Gold exudation is lost in.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57114630A (en) * | 1981-01-07 | 1982-07-16 | Daido Gakuen | Manufacture of reinforced metallic material |
| CN1167836A (en) * | 1996-04-09 | 1997-12-17 | 巴斯福股份公司 | Process for producing granular material and shaped parts from hard metal materials or cermet materials |
| CN1211205A (en) * | 1996-02-12 | 1999-03-17 | 克雷多工具公司 | Method for making a carbide cutting insert |
| CN1669704A (en) * | 2005-04-22 | 2005-09-21 | 北京科技大学 | Process for preparing tungsten parts and components with complicated shape and high dimensional accuracy |
| CN101288907A (en) * | 2007-04-19 | 2008-10-22 | 湖南英捷高科技有限责任公司 | Processing method of endoscope living body forceps head |
| CN105618760A (en) * | 2015-12-30 | 2016-06-01 | 上海典工新材料科技有限公司 | Method for forming high abrasion resistance WC accessories by powder injection |
-
2016
- 2016-12-07 CN CN201611115318.XA patent/CN106624634B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57114630A (en) * | 1981-01-07 | 1982-07-16 | Daido Gakuen | Manufacture of reinforced metallic material |
| CN1211205A (en) * | 1996-02-12 | 1999-03-17 | 克雷多工具公司 | Method for making a carbide cutting insert |
| CN1167836A (en) * | 1996-04-09 | 1997-12-17 | 巴斯福股份公司 | Process for producing granular material and shaped parts from hard metal materials or cermet materials |
| CN1669704A (en) * | 2005-04-22 | 2005-09-21 | 北京科技大学 | Process for preparing tungsten parts and components with complicated shape and high dimensional accuracy |
| CN101288907A (en) * | 2007-04-19 | 2008-10-22 | 湖南英捷高科技有限责任公司 | Processing method of endoscope living body forceps head |
| CN105618760A (en) * | 2015-12-30 | 2016-06-01 | 上海典工新材料科技有限公司 | Method for forming high abrasion resistance WC accessories by powder injection |
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