发明授权
- 专利标题： Steam turbine rotor shaft
- 专利标题（中）： 蒸汽轮机转子轴
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申请号： US484204申请日： 1983-04-12
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公开(公告)号： US4566810A公开(公告)日： 1986-01-28
- 发明人: Takatoshi Yoshioka , Seishin Kirihara , Masao Shiga , Katsumi Iijima , Katsukuni Hisano , Ryoichi Kaneko
- 申请人： Takatoshi Yoshioka , Seishin Kirihara , Masao Shiga , Katsumi Iijima , Katsukuni Hisano , Ryoichi Kaneko
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX57-61009 19820414
- 主分类号： F01D5/06
- IPC分类号： F01D5/06 ; F16C3/02 ; F16C33/06 ; F16C33/04 ; F16C33/08 ; F16C33/14
摘要：
A steam turbine rotor shaft made of precipitation-hardened forged austenite steel, comprising first, second and succeeding layers of build-up welding provided on an outer surface of a bearing portion of a journal section in the rotor shaft, the first layer being provided by use of a welding rod of Ni base alloy, the second and succeeding layers being provided by use of a welding rod of low alloy steel which layers have better bearing characteristics than those of the austenite steel.
公开/授权文献
- US5785651A Distance measuring confocal microscope 公开/授权日：1998-07-28