Spark Plug,申请号US20060571690-传众专利搜索

Spark Plug

申请公布号：US2008278053(A1)

申请号：US20060571690

申请日期：2006.03.13

申请公布日期：2008.11.13

申请人：

KUMAGAI KENICHI;MATSUTANI WATARU;KOBAYASHI KENJI

发明人：KUMAGAI KENICHI;MATSUTANI WATARU;KOBAYASHI KENJI

分类号：H01T13/20;C22C19/05;H01T13/39

主分类号：H01T13/20

摘要：To provide a spark plug in which separation of a tip can be prevented and enough wear resistance can be obtained without increasing the content of nickel in the tip portion, and a use method of the spark plug. In a spark plug ( 100 ) including an outside electrode ( 10 ) including an electrode body portion ( 11 ) and a tip ( 12 ) bonded to the electrode body portion ( 11 ), and a center electrode ( 20 ), and the tip ( 12 ) is opposed to the front end portion of the center electrode ( 20 ) through a spark discharge gap (G), the electrode body portion ( 11 ) is made of a nickel alloy containing 13 to 18% by mass of Cr, 0.03 to 0.08% by mass of C, 1 to 3.5% by mass of Mo, 0 to 0.8% by mass of Si, Al, Mn and Ti, and 68% by mass or more of Ni, and the tip ( 12 ) is made of a platinum alloy containing 0 to 4% by mass of Ni.