| Original document(14 pages) Authorized document(14 pages) 中文版 |
The object of the invention is a valve which is cobalt-free excellent in wear resistance and seizure resistance manufactured by forming valve seats (4,5) for a valve disc (2) and a valve body (3) with a nickel base alloy in which silicide particles or boride particles of small particle size are finely dispersed, and the valve seat (4,5) is bonded to the valve disc (2) or the valve body (3) by way of an insert material comprising a nickel base alloy of a lower melting point by transient liquid phase diffusion bonding. |
Application Number
申请号 |
02152749 |
Application Date
申请日 |
2002.11.27 |
| Title 名称 |
Valve and its mfg. method |
Publication Number
公开号 |
1431416 |
Publication Date
公开日 |
2003.07.23 |
| Approval Pub. Date |
2007.03.28 |
Granted Pub. Date |
2007.03.28 |
| International Classification 分类号 |
F16K25/00;C23C10/00;C22C19/03 |
Applicant(s) Name
申请人 |
Hitachi, Ltd. |
| Address 地址 |
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| Inventor(s) Name 发明人 |
Chikazaki Mitsuo;Matsushita Shizuo;Kunitani Jiro |
| Attorney & Agent 代理人 |
zhang huihua |
| More information 更 多 信 息 |
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