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公开(公告)号：EP1719217A1
公开(公告)日：2006-11-08
申请号：EP05717532.5
申请日：2005-02-02
摘要： The invention relates to a sliding contact piece for transmitting an electrical current with a density of between 15 A/cm2 and 50 A/cm2, said element comprising copper particles and graphoid particles produced by grinding a mixture of graphite particles, preferably natural graphite, and organic binding agents. Said contact piece is characterised in that, in order to transmit the current for at least 2000 hours at a temperature higher than 100 °C, typically around 150 °C, the contact piece contains between 20 and 60 wt. % of copper particles and also particles comprising an additional metal pertaining to the group consisting of zinc, manganese and tin, in the form of metal or a compound of said metal.
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公开(公告)号：EP1719217B1
公开(公告)日：2007-12-12
申请号：EP05717532.5
申请日：2005-02-02
摘要： The invention relates to a sliding contact piece for transmitting an electrical current with a density of between 15 A/cm and 50 A/cm , said element comprising copper particles and graphoid particles produced by grinding a mixture of graphite particles, preferably natural graphite, and organic binding agents. Said contact piece is characterised in that, in order to transmit the current for at least 2000 hours at a temperature higher than 100 DEG C, typically around 150 DEG C, the contact piece contains between 20 and 60 wt. % of copper particles and also particles comprising an additional metal pertaining to the group consisting of zinc, manganese and tin, in the form of metal or a compound of said metal.
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公开(公告)号：EP1654786A1
公开(公告)日：2006-05-10
申请号：EP04767776.0
申请日：2004-07-26
发明人： LATZ, Wilhelm , LINCKER, Michel , JOLY, Emmanuel
IPC分类号： H01R39/20
CPC分类号： H01R39/20
摘要： The invention relates to a sliding electrical contact part comprising a base of carbonaceous material and copper. The invention is characterised in that the part is lead free and contains zinc and iron-based particles having a size of less than 500 µm. The inventive contact parts are particularly suitable for electrical devices which require high current densities and friction velocities, such as motor vehicle starters with a high power-weight ratio.
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