发明授权
US07351371B2 Method for the production of near net-shaped metallic and/or ceramic parts
有权
用于生产近网状金属和/或陶瓷部件的方法
- 专利标题: Method for the production of near net-shaped metallic and/or ceramic parts
- 专利标题(中): 用于生产近网状金属和/或陶瓷部件的方法
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申请号: US10531887申请日: 2003-09-19
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公开(公告)号: US07351371B2公开(公告)日: 2008-04-01
- 发明人: Heinz Nelles , Martin Bram , Hans Peter Buchkremer , Detlev Stöver
- 申请人: Heinz Nelles , Martin Bram , Hans Peter Buchkremer , Detlev Stöver
- 申请人地址: DE Julich
- 专利权人: Forschungszentrum Julich GmbH
- 当前专利权人: Forschungszentrum Julich GmbH
- 当前专利权人地址: DE Julich
- 代理商 Andrew Wilford
- 优先权: DE10248888 20021018
- 国际申请: PCT/DE03/03113 WO 20030919
- 国际公布: WO2004/039748 WO 20040513
- 主分类号: B22F3/11
- IPC分类号: B22F3/11
摘要:
A porous near-net-shape metallic parts with an open porosity of at least 10% by volume is made by first forming an injectable mass of a metallic powder of stainless steel, Ti, NiTi, or a titanium alloy, at least one thermoplastic binder, and at least one place holder. The mass then injection molded into the shape of the part to be produced, cooled, set in a capillary-active material, and subjected to a first-stage binder removal to produce an open porosity. The place holder is then removed at least partially from the part with a fluid, and the part is subjected to a thermal binder-removing process. Finally the part is sintered.