CN101235265A - Adhesive and feeding material prepared thereby for metal powder injection molding - Google Patents
Adhesive and feeding material prepared thereby for metal powder injection molding Download PDFInfo
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- CN101235265A CN101235265A CNA2008100188424A CN200810018842A CN101235265A CN 101235265 A CN101235265 A CN 101235265A CN A2008100188424 A CNA2008100188424 A CN A2008100188424A CN 200810018842 A CN200810018842 A CN 200810018842A CN 101235265 A CN101235265 A CN 101235265A
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- binding agent
- feeding
- metal
- powder injection
- metal powder
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Abstract
The invention relates to the metal powder injection forming field, in particular to binding agent and feeding which is used for the metal powder injection forming which is prepared. The binding agent comprises thermoplastic elastic compounded rubber, industrial paraffin, high density polythene HDPE, propene polymer PP and geoceric acid, and the feeding is prepared through procedures of mixing according to material ratio, heating extrusion, cooling disintegration and vacuum packaging and the like. And the effects of the invention are the the solid loadage of feeding is over 60%, liquid and solid are not easy to be separated when in forming, the sticky point technology is simple, cost is low, sticky blank point height is high, sintering blank density is high and the product price is lower.
Description
Affiliated technical field
The present invention relates to the metal powder injection molding field, especially a kind of binding agent and made metal powder injection molding feeding thereof.
Background technology
Metal powder injection molded (MIM) is a new forming technique that develops rapidly in the world in recent years, it is advantageous that the less component that can form any complicated shape, and each position density of goods is even, excellent performance.An importance of this technology is the selection and the preparation of feeding, could shorten process period, avoids hole, the defective of feeding formation, keeps the consistence of density simultaneously.And the key of MIM technology is exactly the selection of cakingagent.The present producer of domestic production iron-based, stainless steel-like (MIM) technology, use be directly to buy the external feeding or the feeding of the domestic cerul system of generally using at present basically.Ideal feeding (the similar toothpaste of binding agent and metal-powder or chocolate mixture) will possess the moulding of being easy to, is easy to unsticking, high solids loading (metal-powder takies the volume fraction of material), liquid-solid phase is not easily separated, product blank or unsticking base intensity height, production cost are low, with metal-powder indexs such as chemical reaction do not take place.
The solids loading of the feeding of present domestic most of MIM producer all is lower than 60%; Product unsticking base intensity is not high; Debonding proces complexity and cost height; The injection molding liquid-solid phase is easily separated, causes characteristics such as injection base density unevenness is even.
External feeding is because its good metal-powder and special cakingagent prescription make their materials all be better than our domestic materials on every performance, and its shortcoming is exactly that price is very expensive, and its price is 2-3 a times of our similar materials.
Summary of the invention
The technical problem to be solved in the present invention is: for the solids loading that overcomes feeding is that the volume fraction that metal-powder takies material is lower than 60%, product unsticking intensity is not high, debonding proces complexity and cost height, liquid-solid phase is easily separated during shaping, the even shortcoming of injection base density unevenness provides a kind of binding agent and made metal powder injection molding feeding thereof.
The technical solution adopted for the present invention to solve the technical problems is: a kind of binding agent, it is characterized in that: have thermoplastic elastic compounded rubber, brazil wax, industrial paraffin, high density polyethylene(HDPE), polypropylene and stearic acid in the described binding agent, its mass percentage content is respectively thermoplastic elastic compounded rubber 2.0-6.0%, brazil wax 25-45%, industrial paraffin 10-25%, high density polyethylene(HDPE) 25-35%, polypropylene 3-12% and stearic acid 0.1-0.5%.
The mass percentage content that has described binding agent in the described feeding is 6.5-8.8%, and the mass percentage content with metal-powder is 91.2-93.5%.
The metal powder injection molding production technique of feeding is characterized in that having following production process:
Batching: according to the ratio of every kind of material described in the above-mentioned binding agent, accurate each constituent in the weighing binding agent joins each constituent of binding agent in the metal-powder of quality according to the above ratio then;
Mix: the binding agent of putting together and metal-powder are joined in the mixing tank mix, mix the back these compounds are packed in the container, treat to utilize crusher the compound fragmentation after its cooling;
Add hot-extrudable: the compound that fragmentation is good joins the screw extrusion press internal heating and extrudes, and utilizes crusher in crushing after the product cooling of extruding;
Vacuum-packed: as to vacuumize after the product that fragmentation is good installs with vacuum packaging bag and pack
The invention has the beneficial effects as follows: the present invention has developed a kind of binding agent and made metal powder injection molding feeding thereof, and the solids loading of feeding is more than 60%; Liquid-solid phase is not easily separated during moulding; Debonding proces is simple, and cost is low; Unsticking base intensity height; Sintered blank density height; Product price is lower.
Embodiment
A kind of binding agent, have thermoplastic elastic compounded rubber, brazil wax, industrial paraffin, high density polyethylene(HDPE), polypropylene and stearic acid in the described binding agent, its mass percentage content is respectively thermoplastic elastic compounded rubber 2.0-6.0%, brazil wax 25-45%, industrial paraffin 10-25%, high density polyethylene(HDPE) 25-35%, polypropylene 3-12% and stearic acid 0.1-0.5%.
Metal powder injection molding is that metal-powder and organic binder bond uniform mixing are become the material with rheological, participates in advanced injector and injects the die cavity formation blank with part shape, again through taking off binding agent and through sintering, making its high compaction become goods.An importance is selection of binder in the feeding preparation in this technology, and the present invention has prepared new binder formula, has prepared high-quality feeding, makes the product density that makes even, unsticking base intensity height, and technology is simple.
Claims (3)
1. binding agent, it is characterized in that: have thermoplastic elastic compounded rubber, brazil wax, industrial paraffin, high density polyethylene(HDPE), polypropylene and stearic acid in the described binding agent, its mass percentage content is respectively thermoplastic elastic compounded rubber 2.0-6.0%, brazil wax 25-45%, industrial paraffin 10-25%, high density polyethylene(HDPE) 25-35%, polypropylene 3-12% and stearic acid 0.1-0.5%.
2. the metal powder injection molding feeding that binding agent according to claim 1 is made, it is characterized in that: the mass percentage content that has described binding agent in the described feeding is 6.5-8.8%, and the mass percentage content with metal-powder is 91.2-93.5%.
3. the metal powder injection molding according to claim 2 production technique of feeding is characterized in that having following production process:
(1) batching: according to the ratio of every kind of material described in the above-mentioned binding agent, accurate each constituent in the weighing binding agent joins each constituent of binding agent in the metal-powder of quality according to the above ratio then;
(2) mix: the binding agent of putting together and metal-powder are joined in the mixing tank mix, mix the back these compounds are packed in the container, treat to utilize crusher the compound fragmentation after its cooling;
(3) add hot-extrudable: the compound that fragmentation is good joins the screw extrusion press internal heating and extrudes, and utilizes crusher in crushing after the cooling of the product extruded;
(4) vacuum packaging: vacuumize after the product that fragmentation is good installs with vacuum packaging bag and pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100188424A CN101235265A (en) | 2008-01-28 | 2008-01-28 | Adhesive and feeding material prepared thereby for metal powder injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100188424A CN101235265A (en) | 2008-01-28 | 2008-01-28 | Adhesive and feeding material prepared thereby for metal powder injection molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101235265A true CN101235265A (en) | 2008-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100188424A Pending CN101235265A (en) | 2008-01-28 | 2008-01-28 | Adhesive and feeding material prepared thereby for metal powder injection molding |
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| CN (1) | CN101235265A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101407610A (en) * | 2008-10-30 | 2009-04-15 | 嘉兴市瑞德材料科技有限公司 | Metallic powder injection molding adhesive |
| CN101579160A (en) * | 2009-06-05 | 2009-11-18 | 刘世华 | Stainless steel zipper manufactured by metal injection molding and preparation method thereof |
| CN101797645A (en) * | 2010-04-12 | 2010-08-11 | 长沙学院 | Binder for micro-powder injection molding and application method thereof |
| CN101885614A (en) * | 2010-07-19 | 2010-11-17 | 北京科技大学 | Precursor water-soluble binder for powder injection molding and preparation method |
| CN102115606A (en) * | 2010-12-06 | 2011-07-06 | 常州精研科技有限公司 | Adhesive and method for preparing metal powder injection molding feedstock from same |
| CN102218720A (en) * | 2011-05-11 | 2011-10-19 | 王峰 | Connector for joint double offset ring ratchet spanner and manufacturing method thereof |
| CN103608314A (en) * | 2011-05-18 | 2014-02-26 | 巴斯夫欧洲公司 | Process for producing components by powder injection molding |
| 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 |
| CN104801706A (en) * | 2015-04-23 | 2015-07-29 | 山东金珠材料科技有限公司 | Wax-based binder for metal powder injection molding |
| CN106670451A (en) * | 2016-12-28 | 2017-05-17 | 江苏精研科技股份有限公司 | Formula and preparation method of copper alloy feed for powder injection molding |
| CN107812933A (en) * | 2017-09-21 | 2018-03-20 | 东莞华晶粉末冶金有限公司 | 304 powder of stainless steel are injection moulded feeding and preparation method and product |
| CN108856712A (en) * | 2018-03-27 | 2018-11-23 | 浙江易亲工业科技有限公司 | A kind of MIM technique feeding binder and its application |
| CN108941574A (en) * | 2018-08-07 | 2018-12-07 | 深圳市铂科新材料股份有限公司 | A kind of metal powder injection molded feeding and preparation method thereof of large-scale part |
| CN109848419A (en) * | 2019-03-15 | 2019-06-07 | 江苏精研科技股份有限公司 | A method of nickel base superalloy complex parts are prepared using powder injection-molded |
-
2008
- 2008-01-28 CN CNA2008100188424A patent/CN101235265A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101407610B (en) * | 2008-10-30 | 2014-03-12 | 嘉兴市瑞德材料科技有限公司 | Metallic powder injection molding adhesive |
| CN101407610A (en) * | 2008-10-30 | 2009-04-15 | 嘉兴市瑞德材料科技有限公司 | Metallic powder injection molding adhesive |
| CN101579160A (en) * | 2009-06-05 | 2009-11-18 | 刘世华 | Stainless steel zipper manufactured by metal injection molding and preparation method thereof |
| CN101579160B (en) * | 2009-06-05 | 2014-08-06 | 刘世华 | Stainless steel zipper manufactured by metal injection molding and preparation method thereof |
| CN101797645A (en) * | 2010-04-12 | 2010-08-11 | 长沙学院 | Binder for micro-powder injection molding and application method thereof |
| CN101797645B (en) * | 2010-04-12 | 2011-12-28 | 长沙学院 | Binder for micro-powder injection molding and application method thereof |
| CN101885614A (en) * | 2010-07-19 | 2010-11-17 | 北京科技大学 | Precursor water-soluble binder for powder injection molding and preparation method |
| CN101885614B (en) * | 2010-07-19 | 2012-11-14 | 北京科技大学 | Precursor water-soluble binder for powder injection molding and preparation method |
| CN102115606A (en) * | 2010-12-06 | 2011-07-06 | 常州精研科技有限公司 | Adhesive and method for preparing metal powder injection molding feedstock from same |
| CN102115606B (en) * | 2010-12-06 | 2012-07-25 | 常州精研科技有限公司 | Adhesive and method for preparing metal powder injection molding feedstock from same |
| CN102218720A (en) * | 2011-05-11 | 2011-10-19 | 王峰 | Connector for joint double offset ring ratchet spanner and manufacturing method thereof |
| CN103608314A (en) * | 2011-05-18 | 2014-02-26 | 巴斯夫欧洲公司 | Process for producing components by powder injection molding |
| CN103608314B (en) * | 2011-05-18 | 2015-11-25 | 巴斯夫欧洲公司 | The method of assembly is produced by powder injection molding |
| 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 |
| CN104801706A (en) * | 2015-04-23 | 2015-07-29 | 山东金珠材料科技有限公司 | Wax-based binder for metal powder injection molding |
| CN106670451A (en) * | 2016-12-28 | 2017-05-17 | 江苏精研科技股份有限公司 | Formula and preparation method of copper alloy feed for powder injection molding |
| CN106670451B (en) * | 2016-12-28 | 2018-11-27 | 江苏精研科技股份有限公司 | Powder injection forming copper alloy feeding |
| CN107812933A (en) * | 2017-09-21 | 2018-03-20 | 东莞华晶粉末冶金有限公司 | 304 powder of stainless steel are injection moulded feeding and preparation method and product |
| CN108856712A (en) * | 2018-03-27 | 2018-11-23 | 浙江易亲工业科技有限公司 | A kind of MIM technique feeding binder and its application |
| CN108941574A (en) * | 2018-08-07 | 2018-12-07 | 深圳市铂科新材料股份有限公司 | A kind of metal powder injection molded feeding and preparation method thereof of large-scale part |
| CN109848419A (en) * | 2019-03-15 | 2019-06-07 | 江苏精研科技股份有限公司 | A method of nickel base superalloy complex parts are prepared using powder injection-molded |
| CN109848419B (en) * | 2019-03-15 | 2021-06-15 | 江苏精研科技股份有限公司 | Method for preparing nickel-based high-temperature alloy complex part by adopting powder injection molding |
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Open date: 20080806 |