发明申请
- 专利标题: IMPELLER MANUFACTURING METHOD
- 专利标题(中): 叶轮制造方法
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申请号: US13984904申请日: 2011-11-22
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公开(公告)号: US20130320073A1公开(公告)日: 2013-12-05
- 发明人: Kazutoshi Yokoo , Daisuke Tanaka , Daisuke Kawada , Koshiro Nihara , Hiroki Tagagi , Yujiro Watanabe , Hiroshi Nakajima
- 申请人: Kazutoshi Yokoo , Daisuke Tanaka , Daisuke Kawada , Koshiro Nihara , Hiroki Tagagi , Yujiro Watanabe , Hiroshi Nakajima
- 优先权: JP2011-035308 20110222; JP2011-035309 20110222
- 国际申请: PCT/JP2011/006500 WO 20111122
- 主分类号: B23K1/00
- IPC分类号: B23K1/00
摘要:
The present invention relates to an impeller manufacturing method in which a thermal cycle is performed on an assembly body with a brazing material formed of a Ni-containing Au alloy being placed at a bond portion of at least two impeller constituent members. The thermal cycle includes a temperature increasing process with a temperature increasing rate of 20° C./hr. to 100° C./hr., the process including a first intermediate retention and a second intermediate retention each keeping the temperature, the first intermediate retention performed in a temperature range of 500° C. to 850° C. and the second intermediate retention performed in a temperature range of 850° C. to 950° C. (but not including 850° C.). In the thermal cycle, the temperature is increased in a temperature range exceeding 950° C. after the second intermediate retention at a rate lower than that before the second intermediate retention.
公开/授权文献
- US09566655B2 Impeller brazing method 公开/授权日:2017-02-14