发明授权
- 专利标题: Contact piece made of tungsten provided with a corrosion-resistant layer made of a base metal
- 专利标题(中): 由钨制成的接触件具有由贱金属制成的耐腐蚀层
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申请号: US10554175申请日: 2004-04-19
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公开(公告)号: US07339127B2公开(公告)日: 2008-03-04
- 发明人: Gerhard Renner , Udo Siefken , Martin Müller
- 申请人: Gerhard Renner , Udo Siefken , Martin Müller
- 申请人地址: DE Dachau DE Eisenaugh
- 专利权人: Louis Renner GmbH,Fer Fahrzeugelektrik GmbH
- 当前专利权人: Louis Renner GmbH,Fer Fahrzeugelektrik GmbH
- 当前专利权人地址: DE Dachau DE Eisenaugh
- 代理机构: Kagan Binder, PLLC
- 优先权: DE10318223 20030422
- 国际申请: PCT/EP2004/004153 WO 20040419
- 国际公布: WO2004/095485 WO 20041104
- 主分类号: H01H1/021
- IPC分类号: H01H1/021
摘要:
A contact piece is formed by a tungsten overlay soldered onto a support, wherein at least portions of the solder layer and optionally of the support are covered by a layer of a less noble metal than tungsten. The corrosion resistance of the tungsten overlay is considerably improved.