发明授权
US4431449A Infiltrated molded articles of spherical non-refractory metal powders
失效
渗透的球形非难熔金属粉末的模制品
- 专利标题: Infiltrated molded articles of spherical non-refractory metal powders
- 专利标题(中): 渗透的球形非难熔金属粉末的模制品
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申请号: US499412申请日: 1983-06-01
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公开(公告)号: US4431449A公开(公告)日: 1984-02-14
- 发明人: Kenneth R. Dillon , Richard L. Terchek
- 申请人: Kenneth R. Dillon , Richard L. Terchek
- 申请人地址: MN St. Paul
- 专利权人: Minnesota Mining and Manufacturing Company
- 当前专利权人: Minnesota Mining and Manufacturing Company
- 当前专利权人地址: MN St. Paul
- 主分类号: B22F1/00
- IPC分类号: B22F1/00 ; B22F3/26 ; B22F3/00
摘要:
A molded, non-refractory metal article is made by molding in a flexible mold a plastic mixture of non-refractory, spherical metal powders and a heat-fugitive binder comprising thermoplastic material to form a green article of predetermined shape and dimensions, heating the green article to remove said binder and consolidate the non-refractory spherical powders in the form of a porous, monolithic skeleton of necked particles of non-refractory metal, infiltrating the skeleton with a molten metal having a melting point that is at least 25.degree. C. less than the melting point of the lowest melting of said spherical, non-refractory metal particles, and cooling the infiltrated skeleton thereby forming a homogeneous, void-free, non-refractory metal article of two intermeshed metal matrices.
公开/授权文献
- US5725007A Valve mechanism and method for making same 公开/授权日:1998-03-10
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