CN1803346A - Plasticizer for ceramet production - Google Patents
Plasticizer for ceramet production Download PDFInfo
- Publication number
- CN1803346A CN1803346A CN 200510032600 CN200510032600A CN1803346A CN 1803346 A CN1803346 A CN 1803346A CN 200510032600 CN200510032600 CN 200510032600 CN 200510032600 A CN200510032600 A CN 200510032600A CN 1803346 A CN1803346 A CN 1803346A
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- production
- forming agent
- plasticizer
- polyethylene glycol
- polyvinylpyridine
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- Powder Metallurgy (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention provides a plasticizer for ceramic metal production, which is prepared from 5-40% of polyvinylpyridine, 10-38% of polyethylene glycol, 2-10% of stearic acid, and 40-80% of anhydrous alcohol through heating, agitating and blending, and forming homogeneous solution. The invention can be applied into the production of cemented carbide and ceramics.
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 that cermet is produced.
Background technology
In the cermet 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, styrene-butadiene-styrenic block polymers (SBS), styrene-isoprene-styrene (SIS) etc.; Paraffin class; Polyethylene glycol (PEG) class water-soluble polymer.The advantage of rubber-like forming agent is that processability is good, and shortcoming is that residual carbon is high and wayward, uses inconvenience, contaminated vacuum system.The advantage of paraffin is seldom residual, and 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 novel forming agent of suitable metal Production of Ceramics is provided, the residual carbon amount is low, powder flowbility good, briquetting pressure is low, compact strength is high, 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, the product size stable and controllable.
Forming agent of the present invention is that the polyvinylpyridine of 5%-40%, the polyethylene glycol of 10%-38%, the stearic acid of 2%-10% and the absolute alcohol mixing of 40%-80% are formed by mass percent.
With above-mentioned forming agent according to a certain percentage, join in the metal ceramic powder, mix, and drying, wiping is broken sieves, granulates, prepares and mix the glue compound; Be pressed again, sintering, obtain alloy product.
Perhaps above-mentioned forming agent and the ceramic-metallic material powder with certain ratio together joins in the ball mill, through the certain hour ball mill crushing, mixes, and the gained slip is spray-dried, granulate, and prepares the mobile fabulous glue compound of mixing; Be pressed again, sintering, obtain alloy product.
With nanometer/Ti (CN) based ceramic metal powder is example, uses forming agent of the present invention, SIS forming agent and PEG forming agent respectively, compacting PS21 strip (20mm * 6.2mm * 5.6mm) and APKT160408-PM blade.Through many batches of samplings, measured the residual carbon of apparent density, mobile performance, pressing pressure, elastic after effect, pressed compact substance deviation, pressed compact dimensional discrepancy and the blade of compound respectively and 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 nanometer metal ceramic 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, compact strength improves, and does not have residual carbon amount or extremely low behind the sintering in the cermet, and blade size is stable and precision is high.
It is extremely strong that forming agent of the present invention and rubber-like forming agent are compared caking property, do not have residual carbon, the compact strength height, and be suitable for spray-drying; Compare good weatherability with PEG, non-hygroscopic, pressing pressure is little, is fit to the absolute ethyl alcohol ball-milling medium.
In powder metallurgy is produced, carbide alloy, ceramic very close with ceramic-metallic production, forming agent of the present invention can be used for the production of carbide alloy and pottery equally.
The specific embodiment
Embodiment 1: with percentage by weight is that 20% polyvinylpyridine, 38% polyethylene glycol, 2% stearic acid and 40% absolute alcohol are together put into autoclave, be heated to about 50 ℃, and blended under agitation, form uniform solution, promptly obtain forming agent of the present invention, be used for the production of superfine Ti (CN) based ceramic metal.
Embodiment 2: with percentage by weight is that 40% polyvinylpyridine, 20% polyethylene glycol, 10% stearic acid and 40% absolute alcohol are together put into autoclave, be heated to about 50 ℃, and blended under agitation, form uniform solution, promptly obtain forming agent of the present invention, be suitable for the production of the cermet product of complicated shape.
Embodiment 3: with percentage by weight is that 24% polyvinylpyridine, 10% polyethylene glycol, 6% stearic acid and 60% absolute alcohol are together put into autoclave, be heated to about 50 ℃, and blended under agitation, form uniform solution, promptly obtain forming agent of the present invention, be suitable for the production of micron based ceramic metal.
Embodiment 4: with percentage by weight is that 15% polyvinylpyridine, 15% polyethylene glycol, 5% stearic acid and 65% absolute alcohol are together put into autoclave, be heated to about 50 ℃, and blended under agitation, form uniform solution, promptly obtain forming agent of the present invention, be applicable to various ceramic-metallic productions.
Embodiment 5: with percentage by weight is that 5% polyvinylpyridine, 12% polyethylene glycol, 3% stearic acid and 80% absolute alcohol are together put into autoclave, be heated to about 50 ℃, and blended under agitation, form uniform solution, promptly obtain forming agent of the present invention, be suitable for ceramic-metallic powder by spraying technology.
Claims (6)
1, a kind of plasticizer for ceramet production is that the polyvinylpyridine of 5%-40%, the polyethylene glycol of 10%-38%, the stearic acid of 2%-10% and the absolute alcohol of 40%-80% are formed by mass percent.
2, the forming agent that is used for carbide alloy, cermet and Production of Ceramics as claimed in claim 1 is characterized in that: the mass percent of polyvinylpyridine is 20%, polyethylene glycol is 38%, stearic acid is 2%, solvent alcohol is 40%.
3, plasticizer for ceramet production as claimed in claim 1 is characterized in that: the mass percent of polyvinylpyridine is 40%, polyethylene glycol is 20%, stearic acid is 10%, solvent alcohol is 40%.
4, plasticizer for ceramet production as claimed in claim 1 is characterized in that: the mass percent of polyvinylpyridine is 24%, polyethylene glycol is 10%, stearic acid is 6%, solvent alcohol is 60%.
5, plasticizer for ceramet production as claimed in claim 1 is characterized in that: the mass percent of polyvinylpyridine is 15%, polyethylene glycol is 15%, stearic acid is 5%, solvent alcohol is 65%.
6, plasticizer for ceramet production as claimed in claim 1 is characterized in that: the mass percent of polyvinylpyridine is 5%, polyethylene glycol is 12%, stearic acid is 3%, solvent alcohol is 80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100326007A CN100387379C (en) | 2005-12-22 | 2005-12-22 | Plasticizer for ceramet production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100326007A CN100387379C (en) | 2005-12-22 | 2005-12-22 | Plasticizer for ceramet production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1803346A true CN1803346A (en) | 2006-07-19 |
| CN100387379C CN100387379C (en) | 2008-05-14 |
Family
ID=36865566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100326007A Expired - Fee Related CN100387379C (en) | 2005-12-22 | 2005-12-22 | Plasticizer for ceramet production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100387379C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719689A (en) * | 2011-03-29 | 2012-10-10 | 厦门钨业股份有限公司 | PEG-based complex forming agent for water-based cemented carbide mixture |
| CN105499557A (en) * | 2016-01-28 | 2016-04-20 | 河南中硬合金有限公司 | Hard alloy large-product holding-up hammer multi-component forming agent and preparation method |
| CN106544538A (en) * | 2016-12-23 | 2017-03-29 | 苏州新锐合金工具股份有限公司 | The control method of powder oxygen content in a kind of Investigation for Super-fine Cermets preparation process |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58100658A (en) * | 1981-12-08 | 1983-06-15 | Ngk Spark Plug Co Ltd | Ceramic-metal composite material and its manufacture |
| CN1040813A (en) * | 1989-09-30 | 1990-03-28 | 张福生 | Solid adhesive |
| US5194203A (en) * | 1991-02-28 | 1993-03-16 | Mitsui Mining & Smelting Co., Ltd. | Methods of removing binder from powder moldings |
| JP3165165B2 (en) * | 1991-02-28 | 2001-05-14 | 三井金属鉱業株式会社 | Extraction degreasing method using methanol |
| CN1054618C (en) * | 1995-10-06 | 2000-07-19 | 江西化纤化工有限责任公司 | Method for preparation of dry power briquetting binder |
| CN1098825C (en) * | 1998-07-24 | 2003-01-15 | 清华大学 | Doctor blade process for preparing ceramic base plate |
| JP4493880B2 (en) * | 2001-05-17 | 2010-06-30 | 本田技研工業株式会社 | Manufacturing method of composite material |
| CN1232477C (en) * | 2004-06-25 | 2005-12-21 | 清华大学 | Novel ceramic injection material and its application |
-
2005
- 2005-12-22 CN CNB2005100326007A patent/CN100387379C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719689A (en) * | 2011-03-29 | 2012-10-10 | 厦门钨业股份有限公司 | PEG-based complex forming agent for water-based cemented carbide mixture |
| CN105499557A (en) * | 2016-01-28 | 2016-04-20 | 河南中硬合金有限公司 | Hard alloy large-product holding-up hammer multi-component forming agent and preparation method |
| CN106544538A (en) * | 2016-12-23 | 2017-03-29 | 苏州新锐合金工具股份有限公司 | The control method of powder oxygen content in a kind of Investigation for Super-fine Cermets preparation process |
| CN106544538B (en) * | 2016-12-23 | 2018-09-07 | 苏州新锐合金工具股份有限公司 | The control method of powder oxygen content in a kind of Investigation for Super-fine Cermets preparation process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100387379C (en) | 2008-05-14 |
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