发明授权
- 专利标题： Process for firing alloys containing easily oxidizable elements
- 专利标题（中）： 用于焙烧含有易氧化元素的合金的方法
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申请号： US9959申请日： 1993-01-27
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公开(公告)号： US5330703A公开(公告)日： 1994-07-19
- 发明人: Tsuneaki Ohashi , Nobuo Tsuno
- 申请人： Tsuneaki Ohashi , Nobuo Tsuno
- 申请人地址： JPX Nagoya
- 专利权人： NGK Insulators, Ltd.
- 当前专利权人： NGK Insulators, Ltd.
- 当前专利权人地址： JPX Nagoya
- 优先权： JPX4-012364 19920127
- 主分类号： B22F3/10
- IPC分类号： B22F3/10 ; C01B3/24 ; B22F1/00
摘要：
A shaped material comprising powders of alloys containing easily oxidizable elements is fired in a hydrogen-based atmosphere containing at least one hydrocarbon gas in a total amount of 0.01-5.0 volume %. Therefore, the amount of oxides formed on the surfaces of material powder particles is reduced, and the sinterability of powder particle surfaces is improved owing to the sticking of atomic carbon thereto and thereby the mutual diffusion of powder particles becomes easy. As a result, there can be obtained a sintered alloy of desired density, superior in oxidation resistance, etc.
公开/授权文献
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