发明授权
- 专利标题： VERFAHREN ZUR HERSTELLUNG EINES ELEKTRODENELEMENTES FÜR PLASMABRENNER
- 专利标题（英）： Method for the production of electrode element for a plasma torch
- 专利标题（中）： 方法制造电极元在等离子体炬
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申请号： EP03729808.0申请日： 2003-03-05
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公开(公告)号： EP1481574B1公开(公告)日： 2008-12-17
- 发明人: KRINK, Volker , LAURISCH, Frank , MÖHLER, Wolfram , LOTZE, Gerd , LÖBL, Helmut
- 申请人： Kjellberg Finsterwalde Plasma und Maschinen GmbH , Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- 申请人地址： Leipziger Strasse 82 03238 Finsterwalde DE
- 专利权人： Kjellberg Finsterwalde Plasma und Maschinen GmbH,Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- 当前专利权人： Kjellberg Finsterwalde Plasma und Maschinen GmbH,Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- 当前专利权人地址： Leipziger Strasse 82 03238 Finsterwalde DE
- 代理机构： Pfenning, Meinig & Partner GbR
- 优先权： DE10210421 20020306
- 国际公布： WO2003075621 20030912
- 主分类号： H05H1/34
- IPC分类号： H05H1/34
摘要：
The invention relates to an electrode element for plasma torches and a method for producing such electrode elements. The aim of the invention is to reduce production costs while increasing the life span, wherefore the inventive electrode element for plasma torches is provided with at least one core which forms the actual electrode that is connected as a cathode, and which is made of a metal or metal alloy having a smaller work function. Said core is surrounded by a shell part that is made of a metal or metal alloy having a greater work function and thermal conductivity. A graded border layer which is formed by mixed crystals of the two metals or metal alloys, or an intermediate layer between the core surface and the shell part, which is made of another metal or metal alloy having a greater work function than the core material, is provided between the core surface and the shell part. Said border layers of the intermediate layer form a graded transition.
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