发明公开
EP2305952A2 Steam turbine rotor and steam turbine using the same
审中-公开
Dampfturbinenrotor和Dampfturbine
- 专利标题： Steam turbine rotor and steam turbine using the same
- 专利标题（中）： Dampfturbinenrotor和Dampfturbine
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申请号： EP10172758.4申请日： 2010-08-13
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公开(公告)号： EP2305952A2公开(公告)日： 2011-04-06
- 发明人: Imano, Shinya , Doi, Hiroyuki , Sato, Jun
- 申请人： Hitachi Ltd.
- 申请人地址： 6-6 Marunouchi 1-chome, Chiyoda-ku Tokyo 100-8280 JP
- 专利权人： Hitachi Ltd.
- 当前专利权人： Hitachi Ltd.
- 当前专利权人地址： 6-6 Marunouchi 1-chome, Chiyoda-ku Tokyo 100-8280 JP
- 代理机构： MERH-IP Matias Erny Reichl Hoffmann
- 优先权： JP2009221814 20090928
- 主分类号： F01D5/06
- IPC分类号： F01D5/06 ; F01D5/28 ; B23K9/00
摘要：
To provide a steam turbine rotor and a steam turbine which are highly reliable.
The steam turbine rotor is characterized in that a forged material B having a hollow structure is joined to a forged material A of a Ni group super-alloy by welding, and weld back waves on an inner surface are removed, and the inner surface is smoothed, and a forging material C and a forging material B are joined to each other with a bolt.
The steam turbine rotor is characterized in that a forged material B having a hollow structure is joined to a forged material A of a Ni group super-alloy by welding, and weld back waves on an inner surface are removed, and the inner surface is smoothed, and a forging material C and a forging material B are joined to each other with a bolt.
公开/授权文献
- EP2305952A3 Steam turbine rotor and steam turbine using the same 公开/授权日：2012-01-18
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