发明名称 |
Method and tool of tungsten/heavy metal alloy for hot-forging solid state copper and copper alloys |
摘要 |
The tungsten/heavy metal alloy is suitable for tools such as extrusion dies and extrusion mandrels for the hot-forming of copper and copper alloys. The novel alloy consists of 80 to 89.9% by weight of tungsten, 2 to 7% by weight of chromium, and a remainder of binder metal. The use of the novel alloy primarily results in a considerably reduced formation of grooves on the surface of the forming tools.
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申请公布号 |
US6796162(B2) |
申请公布日期 |
2004.09.28 |
申请号 |
US20010026494 |
申请日期 |
2001.12.19 |
申请人 |
PLANSEE AKTIENGESELLSCHAFT |
发明人 |
DREER NORBERT;GRILL ROBERT;RESCH JOACHIM |
分类号 |
B21C25/02;B21J13/02;B22F5/00;C22C1/04;C22C27/04;(IPC1-7):B21D37/01 |
主分类号 |
B21C25/02 |
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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