发明名称 |
PROCEDIMENTO PER LA PRODUZIONE DI VALVOLE. |
摘要 |
<p>A process for the production of a valve, in particular a charge cycle valve of an internal-combustion engine, having a separately produced hollow valve shank with a widening shank section arranged at the valve-side end, which is connected to a valve disk of highly heat resistant material. The valve shank is produced from a tubular starting material by cold forming to the shank diameter, and subsequently a transitional region lying between reduced valve shank and starting material is shaped as a shank section widening in the form of an arc. The valve shank is severed at the widening shank section at a point corresponding to the diameter of the point of connection between valve disk and valve shank.</p> |
申请公布号 |
IT9048241(A1) |
申请公布日期 |
1991.03.07 |
申请号 |
IT19900048241 |
申请日期 |
1990.08.29 |
申请人 |
MERCEDES-BENZ AKTIENGESELLSCHAFT |
发明人 |
CONRADT WALTER;HORA PAVEL;KECK VOLKER |
分类号 |
B21K;B21K1/22;B23K26/28;B23P15/00;F01L3/02 |
主分类号 |
B21K |
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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