发明授权
- 专利标题: Process for producing components by powder injection molding
- 专利标题(中): 通过粉末注射成型制造组件的方法
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申请号: US13472915申请日: 2012-05-16
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公开(公告)号: US09403212B2公开(公告)日: 2016-08-02
- 发明人: Johan ter Maat , Martin Blömacher , Hans Wohlfromm
- 申请人: Johan ter Maat , Martin Blömacher , Hans Wohlfromm
- 申请人地址: DE Luswigshafen
- 专利权人: BASF SE
- 当前专利权人: BASF SE
- 当前专利权人地址: DE Luswigshafen
- 代理机构: Drinker Biddle & Reath LLP
- 主分类号: B22F3/10
- IPC分类号: B22F3/10 ; B22F3/22
摘要:
Process for producing a shaped metallic body from a thermoplastic composition by injection molding or extrusion to form a shaped part, removal of the binder and sintering, wherein a thermoplastic composition composed of a metal powder and a polymer mixture B1) and B2) based on a polyoxymethylene homopolymer or copolymer B1) is used as binder and to remove the binder a) the shaped part is treated with a solvent which extracts the binder component B2) from the shaped part and in which the binder component B1) is insoluble, b) the solvent is then removed from the shaped part by drying and c) the shaped part is treated thermally at from 140 to 200° C. in an oxygen-comprising atmosphere, as a result of which the binder component B1) is removed from the shaped part; and also a shaped metallic body which can be obtained in this way.
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