| 发明名称 |
Process and device for producing press fittings from steel, in particular special steel |
| 摘要 |
Special steel press fittings are produced in two process steps, which can be performed simultaneously, or also one after the other. The cut to size blank is widened in a die is upset in order to form the desired pipe connection areas.
|
| 申请公布号 |
US6843096(B2) |
申请公布日期 |
2005.01.18 |
| 申请号 |
US20020311810 |
申请日期 |
2002.12.20 |
| 申请人 |
WITZIG & FRANK GMBH |
发明人 |
VIEGENER WALTER;NAEGELER JUERGEN;BAUER WALTER |
| 分类号 |
F16L17/02;B21C37/28;B21D17/02;B21D17/04;B21D41/02;B21D51/16;(IPC1-7):B21D41/02 |
主分类号 |
F16L17/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
