发明名称 |
Method for manufacturing ignition plug |
摘要 |
A manufacturing method for an ignition plug is provided. The method includes: preparing an insulator having a cavity provided at a leading end portion thereof by disposing a leading end of the center electrode more inwards than a leading end of the insulator; building the insulator in an interior of the metal shell such that the leading end of the insulator is situated closer to a rear end side than the leading end of the metal shell; removing at least part of a leading end portion of the metal shell which projects from a leading end face of the insulator; and disposing the ground electrode at the leading end portion of the metal shell and welding the ground electrode and the metal shell together after the removal step. |
申请公布号 |
EP2099106(A3) |
申请公布日期 |
2013.04.17 |
申请号 |
EP20090154570 |
申请日期 |
2009.03.06 |
申请人 |
NGK SPARK PLUG CO., LTD. |
发明人 |
NAKAMURA, TORU;KATO, TOMOAKI;YAMADA, YUICHI |
分类号 |
H01T21/02;H01T13/50 |
主分类号 |
H01T21/02 |
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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