| 发明名称 |
ROTOR FOR STEAM TURBINE AND PROCESS FOR PRODUCING THE SAME |
| 摘要 |
<p>A steam turbine rotor shaft and a method of manufacturing the same are provided wherein the sliding characteristics of a journal are improved, and the journal is free from welding cracks and does not need a post heat treatment. The low alloy steel coating layer having a better sliding characteristics than 9 to 13% Cr heat resisting steel and a area rate of defects including pores and oxides in a range of 3 to 15% is formed by a high velocity flame spray coating method on a sliding surface of the journal.</p> |
| 申请公布号 |
EP1898048(A4) |
申请公布日期 |
2009.12.02 |
| 申请号 |
EP20060757200 |
申请日期 |
2006.06.09 |
| 申请人 |
HITACHI, LTD. |
发明人 |
ARIKAWA, HIDEYUKI;ARAI, MASAHIKO;TORIYA, HAJIME;KOJIMA, YOSHITAKA;MEBATA, AKIRA |
| 分类号 |
F01D5/02;C22C38/00;C22C38/18;C22C38/24;C23C4/08;C23C4/12;C23C4/18;F01D5/06;F01D25/00 |
主分类号 |
F01D5/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
