发明授权
US5736809A Method of making a spark plug including laser welding a noble metal
layer to a firing end of electrode
失效
制造火花塞的方法包括将贵金属层激光焊接到电极的烧制端
- 专利标题： Method of making a spark plug including laser welding a noble metal layer to a firing end of electrode
- 专利标题（中）： 制造火花塞的方法包括将贵金属层激光焊接到电极的烧制端
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申请号： US676840申请日： 1996-07-08
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公开(公告)号： US5736809A公开(公告)日： 1998-04-07
- 发明人: Wataru Matsutani , Kozo Amano
- 申请人： Wataru Matsutani , Kozo Amano
- 申请人地址： JPX Nagoya
- 专利权人： NGK Spark Plug Co., Ltd.
- 当前专利权人： NGK Spark Plug Co., Ltd.
- 当前专利权人地址： JPX Nagoya
- 优先权： JPX6-040187 19940310
- 主分类号： H01T13/20
- IPC分类号： H01T13/20 ; H01T13/39 ; H01T13/46 ; H01T21/02
摘要：
In a spark plug having a noble metal layer disposed on a firing end of an electrode, the noble metal layer being laser welded to the firing end of the electrode, and subsequently heat treated to increase a crystallized granulation particle size of the noble metal layer.
公开/授权文献
- US5185686A Direction sensing arc detection 公开/授权日：1993-02-09
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