CN100369700C - Plasticizer for carbide alloy production - Google Patents
Plasticizer for carbide alloy production Download PDFInfo
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- CN100369700C CN100369700C CNB2005100325998A CN200510032599A CN100369700C CN 100369700 C CN100369700 C CN 100369700C CN B2005100325998 A CNB2005100325998 A CN B2005100325998A CN 200510032599 A CN200510032599 A CN 200510032599A CN 100369700 C CN100369700 C CN 100369700C
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Abstract
The present invention provides a forming agent for hard alloy production, which is formed by mixing 15-30% of terminal hydroxyl polybutadiene liquid rubber a, 5-10% of terminal hydroxyl butylbenzene liquid rubber, 5-10% of hydrogenated rosin, 5-10% of tween 60, 7-12% of polytetrahydrofuran, 18-33% of anhydrous alcohol and 10-30% of 120< # > dissolving petrol. The forming agent of the present invention has the advantages of low residual carbon quantity, good powder flowability, low forming pressure and good green compact shape retention, the present invention not only is suitable for manual adhesive mixing techology but also is suitable for spray-drying mixture manufacturing technology, the pressing percent of pass is high, and the product size is stable and controllable; meanwhile, the present invention can be used for ceramic and metalceramic production.
Description
Technical field
The present invention relates to a kind of forming agent that powder metallurgy is produced that is used for, especially be applicable to the forming agent of CEMENTED CARBIDE PRODUCTION.
Background technology
In the CEMENTED CARBIDE PRODUCTION process,, must add a certain amount of forming agent for making the product of powder pressing forming different shape.The forming agent that adopts mainly contains rubber-like at present: butadiene rubber, buna, s-B-S block polymer (SBS), styrene-isoprene-phenylethene (SIS) etc.; Paraffin class; Polyethylene glycol (PEG) class water-soluble polymer.The advantage of rubber-like forming agent is that processability is good; Shortcoming is that residual carbon is high and wayward, uses inconvenience, contaminated vacuum system.The advantage of paraffin is seldom residual; Shortcoming is that processability is undesirable, and compact strength is low, and easy dirtyization used inconvenience, contaminated vacuum system.The advantage of PEG is to use conveniently (water-soluble), and is residual few, is suitable for spray-drying, contaminated vacuum system not, safety and environmental protection; Shortcoming is that processability is undesirable, moisture absorption, affected by environment big, and the material grain is harder, and pressing pressure is big.
Summary of the invention
The present invention is directed to above-mentioned deficiency, a kind of forming agent for producing cemented carbide is provided, the residual carbon amount is low, powder flowbility good, briquetting pressure is low, the pressed compact shape-retaining ability is good, both be fit to the manual adhesive process of mixing, be fit to spray-drying compound preparation technology again, compacting qualification rate height, product size stable and controllable.
Forming agent of the present invention is that the terminal hydroxy polybutadiene liquid rubber of 15%-30%, the liquid end hydroxy styrene-butadiene rubber of 5%-10%, the Foral of 5%-10%, the Tween-60 of 5%-10%, the PolyTHF of 7%-12%, the absolute alcohol of 18%-33% and the dissolving gasoline mixing of 10%-30% are formed by mass percent.
With above-mentioned forming agent according to a certain percentage, join in the cemented carbide powder, mix, and drying, wiping is broken sieves, granulates, prepares and mix the glue compound; Be pressed again, sintering, obtain alloy product.
Perhaps with the above-mentioned forming agent and the carbide alloy of certain ratio
Powder together joins in the ball mill, and through the certain hour ball mill crushing, powder and forming agent mix, and gained mixture slip is spray-dried, granulate, prepare the mobile fabulous glue compound of mixing; Be pressed again, sintering, obtain alloy product.
With superfine carboloy YG10 trade mark compound is example, uses forming agent of the present invention, SIS and PEG as forming agent respectively, compacting PS21 strip (20mm * 6.2mm * 5.6mm) and APKT160408-PM blade.Through many batches of samplings, measured apparent density, mobile performance, pressing pressure, elastic after effect, pressed compact substance deviation and the pressed compact dimensional discrepancy of compound respectively; The residual carbon of blade is measured; Data result sees the following form:
Annotate: △ represents Hall flowmeter method, ▲ expression Scott density.
By the data in the table as can be known, adopt forming agent of the present invention, the apparent density of ultra-fine cemented carbide compound is big and fluctuate little, good flowing properties, pressed compact pressure is little, and elastic after effect is also little, green density is big, behind the sintering in the ultra-fine YG10 carbide alloy residual carbon amount low, there is passivation on the ultra-fine cemented carbide powder surface, blade size is stable and precision is high.
It is low that the present invention and other rubber-like forming agent are compared the residual carbon amount, apparent density big and fluctuate little, good flowing properties, and be suitable for spray-drying; Compare good weatherability with PEG, non-hygroscopic, pressing pressure is little, and there is passivation on the ultra-fine cemented carbide powder surface, is fit to the absolute ethyl alcohol ball-milling medium.
In powder metallurgy was produced, the production of pottery, cermet and carbide alloy was very close, and forming agent of the present invention can be used for pottery and ceramic-metallic production equally.
The specific embodiment
Embodiment 1: with percentage by weight be 30% terminal hydroxy polybutadiene liquid rubber, 5% liquid end hydroxy styrene-butadiene rubber, 5% Foral, 5% polysorbate60,7% PolyTHF and 18% absolute alcohol, 30% 120
#Dissolving gasoline is together put into agitator, blended under agitation, treat that terminal hydroxy polybutadiene liquid rubber and liquid end hydroxy styrene-butadiene rubber are dissolved in dissolving gasoline, Foral and PolyTHF and are dissolved in absolute alcohol, and form uniform solution, promptly obtain forming agent of the present invention, be used for ultra-fine yg-type carbide production.
Embodiment 2: with percentage by weight be 20% terminal hydroxy polybutadiene liquid rubber, 10% liquid end hydroxy styrene-butadiene rubber, 10% Foral, 10% Tween-60,10% PolyTHF and 25% absolute alcohol, 15% 120
#Dissolving gasoline is together put into agitator, treat that terminal hydroxy polybutadiene liquid rubber and liquid end hydroxy styrene-butadiene rubber are dissolved in dissolving gasoline, Foral and PolyTHF and are dissolved in absolute alcohol, and form uniform solution, promptly obtain forming agent of the present invention, be widely used in the production of various carbide alloy.
Embodiment 3: with percentage by weight be 15% terminal hydroxy polybutadiene liquid rubber, 10% liquid end hydroxy styrene-butadiene rubber, 5% Foral, 10% Tween-60,12% PolyTHF and 33% absolute alcohol, 15% 120
#Dissolving gasoline is together put into agitator, blended under agitation, treat that terminal hydroxy polybutadiene liquid rubber and liquid end hydroxy styrene-butadiene rubber are dissolved in dissolving gasoline, Foral and PolyTHF and are dissolved in absolute alcohol, and form uniform solution, promptly obtain forming agent of the present invention, be suitable for the production of YT series hard alloy.
Embodiment 4: with percentage by weight be 30% terminal hydroxy polybutadiene liquid rubber, 5% liquid end hydroxy styrene-butadiene rubber, 5% Foral, 10% Tween-60,12% PolyTHF and 28% absolute alcohol, 10% 120
#Dissolving gasoline is together put into agitator, blended under agitation, treat that terminal hydroxy polybutadiene liquid rubber and liquid end hydroxy styrene-butadiene rubber are dissolved in dissolving gasoline, Foral and PolyTHF and are dissolved in absolute alcohol, and form uniform solution, promptly obtain forming agent of the present invention.The carbon residue of this forming agent is minimum, is suitable for the production of hard alloy in low cobalt.
Claims (5)
1. forming agent for producing cemented carbide, by mass percent be Foral, the 5%-10% of liquid end hydroxy styrene-butadiene rubber, the 5%-10% of terminal hydroxy polybutadiene liquid rubber, the 5%-10% of 15%-30% Tween-60,7%-12% PolyTHF, 18%-33% absolute alcohol and 10%-30% 120
#Dissolving gasoline mixes to be formed.
2. forming agent for producing cemented carbide as claimed in claim 1 is characterized in that: the mass percent of terminal hydroxy polybutadiene liquid rubber is 30%, liquid end hydroxy styrene-butadiene rubber is 5%, Foral is 5%, Tween-60 is 5%, PolyTHF is 7%, absolute alcohol is 18%, 120
#Dissolving gasoline is 30%.
3. forming agent for producing cemented carbide as claimed in claim 1 is characterized in that: the mass percent of terminal hydroxy polybutadiene liquid rubber is 20%, liquid end hydroxy styrene-butadiene rubber is 10%, Foral is 10%, Tween-60 is 10%, PolyTHF is 10%, absolute alcohol is 25%, 120
#Dissolving gasoline is 15%.
4. forming agent for producing cemented carbide as claimed in claim 1 is characterized in that: the mass percent of terminal hydroxy polybutadiene liquid rubber is 15%, liquid end hydroxy styrene-butadiene rubber is 10%, Foral is 5%, Tween-60 is 10%, PolyTHF is 12%, absolute alcohol is 33%, 120
#Dissolving gasoline is 15%.
5. forming agent for producing cemented carbide as claimed in claim 1 is characterized in that: the mass percent of terminal hydroxy polybutadiene liquid rubber is 30%, liquid end hydroxy styrene-butadiene rubber is 5%, Foral is 5%, Tween-60 is 10%, PolyTHF is 12%, absolute alcohol is 28%, 120
#Dissolving gasoline is 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100325998A CN100369700C (en) | 2005-12-22 | 2005-12-22 | Plasticizer for carbide alloy production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100325998A CN100369700C (en) | 2005-12-22 | 2005-12-22 | Plasticizer for carbide alloy production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1788888A CN1788888A (en) | 2006-06-21 |
| CN100369700C true CN100369700C (en) | 2008-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100325998A Expired - Fee Related CN100369700C (en) | 2005-12-22 | 2005-12-22 | Plasticizer for carbide alloy production |
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| CN (1) | CN100369700C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101108954B (en) * | 2007-08-10 | 2010-08-11 | 株洲精工硬质合金有限公司 | Hard metal complex plasticizer and method of manufacturing the same and method of use thereof |
| CN102925726B (en) * | 2012-10-31 | 2015-01-28 | 株洲欣荣硬质合金有限公司 | Hard alloy forming agent and perpetration method thereof |
| CN102912164A (en) * | 2012-11-09 | 2013-02-06 | 四川科力特硬质合金股份有限公司 | Method for uniformly dispersing doped rubber of hard alloy mixture |
| CN103014392B (en) * | 2012-12-27 | 2014-11-05 | 株洲硬质合金集团有限公司 | Hard alloy extrusion forming agent, preparation method thereof and application of hard alloy extrusion forming agent in extrusion production |
| CN103537687B (en) * | 2013-10-16 | 2015-12-02 | 宜兴市炜华合金材料有限公司 | A kind of production technology of suppressing alloyed powder |
| CN105642881A (en) * | 2016-03-16 | 2016-06-08 | 江西耀升钨业股份有限公司 | Technology for producing hard alloy woodworking blade by means of fine-particle return scraps |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5176842A (en) * | 1989-12-28 | 1993-01-05 | Sankyo Seiki Mfg., Co., Ltd. | Method of manufacturing a resin bound magnet |
| CN1075904A (en) * | 1992-03-04 | 1993-09-08 | 株式会社神户制钢所 | The binding agent that is used for the powder mixture of powder metallurgy and uses for this reason |
| US5286275A (en) * | 1991-04-22 | 1994-02-15 | Kabushiki Kaisha Kobe Seiko Sho | Powder mixture for powder metallurgy and binder therefor |
| JPH0693302A (en) * | 1992-09-11 | 1994-04-05 | Kobe Steel Ltd | Liquid binder for powder metallurgy and segregation preventive mixed powder |
| CN1281882A (en) * | 2000-08-24 | 2001-01-31 | 曹阳 | Forming agent for producing hard alloy |
-
2005
- 2005-12-22 CN CNB2005100325998A patent/CN100369700C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5176842A (en) * | 1989-12-28 | 1993-01-05 | Sankyo Seiki Mfg., Co., Ltd. | Method of manufacturing a resin bound magnet |
| US5286275A (en) * | 1991-04-22 | 1994-02-15 | Kabushiki Kaisha Kobe Seiko Sho | Powder mixture for powder metallurgy and binder therefor |
| CN1075904A (en) * | 1992-03-04 | 1993-09-08 | 株式会社神户制钢所 | The binding agent that is used for the powder mixture of powder metallurgy and uses for this reason |
| JPH0693302A (en) * | 1992-09-11 | 1994-04-05 | Kobe Steel Ltd | Liquid binder for powder metallurgy and segregation preventive mixed powder |
| CN1281882A (en) * | 2000-08-24 | 2001-01-31 | 曹阳 | Forming agent for producing hard alloy |
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| CN1788888A (en) | 2006-06-21 |
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