发明名称 |
SPARK PLUG ELECTRODE, METHOD FOR PRODUCING SAME, SPARK PLUG, AND METHOD FOR PRODUCING SPARK PLUG |
摘要 |
A spark plug is provided having at least one of a center electrode or a ground electrode. The electrode comprises: a core formed of a composite material containing a matrix metal, the matrix metal being copper or a metal containing copper as a main component, and carbon dispersed in the matrix metal in an amount of 10 to 80 vol. %, the carbon having a thermal conductivity higher than that of the matrix metal. The electrode also contains an outer shell which surrounds the core and which is formed of nickel or a metal containing nickel as a main component. 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. The spark plug including the above electrode exhibits excellent durability.
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申请公布号 |
US2013181597(A1) |
申请公布日期 |
2013.07.18 |
申请号 |
US201113824205 |
申请日期 |
2011.08.24 |
申请人 |
TANAKA TOMO-O;SHIBATA TSUTOMU;KIKAI TAKAAKI;NGK SPARK PLUG CO., LTD. |
发明人 |
TANAKA TOMO-O;SHIBATA TSUTOMU;KIKAI TAKAAKI |
分类号 |
H01T13/39;H01T21/02 |
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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