发明名称 |
SPARK PLUG ELECTRODE, METHOD FOR PRODUCING SAME, SPARK PLUG, AND METHOD FOR PRODUCING SPARK PLUG |
摘要 |
According to the present invention, at least one of a center electrode or a ground electrode is produced by mixing a matrix metal with carbon so that the carbon content of the resultant mixture is adjusted to 80 vol.% or less; subjecting the mixture to powder compacting or sintering, to thereby form a core; placing the core in a cup formed of nickel or a metal containing nickel as a main component; and subjecting the cup to cold working. The thus-produced electrode exhibits favorable thermal conductivity and good heat dissipation, by virtue of the small difference in thermal expansion coefficient between the core and an outer shell. Therefore, a spark plug including the electrode exhibits excellent durability. |
申请公布号 |
KR20130093122(A) |
申请公布日期 |
2013.08.21 |
申请号 |
KR20137010184 |
申请日期 |
2011.08.24 |
申请人 |
NGK SPARK PLUG COMPANY LIMITED |
发明人 |
TANAKA TOMO O;SHIBATA TSUTOMU;KIKAI TAKAAKI |
分类号 |
H01T13/39;C22C1/10;C22C49/04;H01T13/16 |
主分类号 |
H01T13/39 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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