发明名称 |
INSULATOR FOR SPARK PLUG, AND METHOD FOR MANUFACTURING SPARK PLUG |
摘要 |
A method for manufacturing an insulator for a spark plug is provided. The method includes: a preparing step; a press pin arranging step; a powder filling step after the press pin arranging step; a cavity blocking step after the powder filling step; a compression molding step after the cavity blocking step; a die releasing step after the compression molding step; and a press pin removing step after the die releasing step.
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申请公布号 |
US2009239437(A1) |
申请公布日期 |
2009.09.24 |
申请号 |
US20090405462 |
申请日期 |
2009.03.17 |
申请人 |
NGK SPARK PLUG CO., LTD. |
发明人 |
HONDA TOSHITAKA;MIZUNO TAKAMITSU;SAKURAI SHINICHI |
分类号 |
H01T21/02 |
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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