发明授权
US06794804B2 Production method of spark plug designed to provide high temperature oxidation resistance and weld strength and spark plug produced thereby
有权
设计用于提供高温抗氧化性和焊接强度的火花塞和由此产生的火花塞的生产方法
- 专利标题： Production method of spark plug designed to provide high temperature oxidation resistance and weld strength and spark plug produced thereby
- 专利标题（中）： 设计用于提供高温抗氧化性和焊接强度的火花塞和由此产生的火花塞的生产方法
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申请号： US10225459申请日： 2002-08-22
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公开(公告)号： US06794804B2公开(公告)日： 2004-09-21
- 发明人: Keiji Kanao , Tsunenobu Hori
- 申请人： Keiji Kanao , Tsunenobu Hori
- 优先权： JP2001-251896 20010822; JP2002-196148 20020704
- 主分类号： H01T124
- IPC分类号： H01T124
摘要：
A spark plug and a production method thereof is provided which is designed to improve the high temperature oxidation resistance of a ground electrode without sacrificing the mechanical strength of a weld of the ground electrode with a metal shell. The ground electrode is made of a Ni-based alloy containing 10% or more by weight of Cr and 1.5% or more by weight of Al and joined to the metal shell by resistance welding in a substantially oxygen free atmosphere.
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