发明名称 |
TURBINENWELLE AUS ZWEI LEGIERUNGEN |
摘要 |
A turbine shaft, in particular for a steam turbine, is oriented along an axis of rotation. The turbine shaft has a first region with a maximum radius R1 and a second region adjoining the first region and having a maximum radius R2>R1. The first region includes a first base material for use at a temperature of over 550° C. and the second region includes a second base material for use at a temperature below 550° C. An alloy steel used for the first and the second base materials in each case has a chromium content of between 8.0% by weight and 12.5% by weight at a substantially identical austenitizing temperature. A method is provided for producing the turbine shaft. |
申请公布号 |
AT218184(T) |
申请公布日期 |
2002.06.15 |
申请号 |
AT19970915295T |
申请日期 |
1997.02.19 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
KERN, TORSTEN-ULF;EWALD, JUERGEN |
分类号 |
B32B15/01;C22C38/40;F01D5/02;F01D5/28;(IPC1-7):F01D5/02 |
主分类号 |
B32B15/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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