发明授权
US06793746B2 Stainless steel parts with suppressed release of sulfide gas and method of producing
失效
不锈钢部件具有抑制硫化物气体释放和生产方法
- 专利标题: Stainless steel parts with suppressed release of sulfide gas and method of producing
- 专利标题(中): 不锈钢部件具有抑制硫化物气体释放和生产方法
-
申请号: US10134536申请日: 2002-04-30
-
公开(公告)号: US06793746B2公开(公告)日: 2004-09-21
- 发明人: Tetsuya Shimizu , Michio Okabe
- 申请人: Tetsuya Shimizu , Michio Okabe
- 优先权: JP11-320809 19991111; JP11-338256 19991129
- 主分类号: C22C3842
- IPC分类号: C22C3842
摘要:
Disclosed are stainless steel parts, particularly, parts of electronic apparatus, with which troubles caused by so-called “sulfide gas” mainly of H2S must be avoided. Release of the sulfide gas from the parts is effectively suppressed. The parts have high hardness and corrosion resistance, and can be produced with high finishing accuracy. The stainless steel parts are produced by processing a ferritic or a martensitic stainless steel of a specific alloy composition by forging and/or machining to the shape of the part followed by quenching and tempering, or quenching and tempering followed by machining to the shape of the part, and applying a solution of oxidative acid to the surface of the part so as to dissolve and remove sulfides existing on the surface of the part.