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    • 3. 发明申请
    • Spark plug manufacturing apparatus and method of manufacturing spark plug
    • 火花塞制造装置及制造火花塞的方法
    • US20060246807A1
    • 2006-11-02
    • US11410947
    • 2006-04-26
    • Kouji Hori
    • Kouji Hori
    • H01T21/02
    • H01T21/02
    • The spark plug manufacturing apparatus includes a holding plate formed with a plurality of mounting holes penetrating from a front surface to a rear surface thereof for holding therein hollow tubular insulators of spark plugs, each of which is fitted therein with a center electrode and a metal stem provided with a terminal part, and is charged with a powder resistance material between the center electrode and the stem, and an electric furnace for heating the insulators held in the mounting holes of the holding plate. The holding plate is made of a ceramic material containing not less than 50 wt % of silicon nitride.
    • 火花塞制造装置包括:保持板,形成有从前表面到后表面贯穿的多个安装孔,用于保持火花塞的中空管状绝缘体,每个安装有中心电极和金属杆 设置有端子部,并且在中心电极和杆之间装载有耐电阻材料,以及用于加热保持在保持板的安装孔中的绝缘体的电炉。 保持板由含有不少于50重量%的氮化硅的陶瓷材料制成。
    • 5. 发明授权
    • Spark plug manufacturing apparatus and method of manufacturing spark plug
    • 火花塞制造装置及制造火花塞的方法
    • US07261609B2
    • 2007-08-28
    • US11410947
    • 2006-04-26
    • Kouji Hori
    • Kouji Hori
    • H01T21/02
    • H01T21/02
    • The spark plug manufacturing apparatus includes a holding plate formed with a plurality of mounting holes penetrating from a front surface to a rear surface thereof for holding therein hollow tubular insulators of spark plugs, each of which is fitted therein with a center electrode and a metal stem provided with a terminal part, and is charged with a powder resistance material between the center electrode and the stem, and an electric furnace for heating the insulators held in the mounting holes of the holding plate. The holding plate is made of a ceramic material containing not less than 50 wt % of silicon nitride.
    • 火花塞制造装置包括:保持板,形成有从前表面到后表面贯穿的多个安装孔,用于保持火花塞的中空管状绝缘体,每个安装有中心电极和金属杆 设置有端子部,并且在中心电极和杆之间装载有耐电阻材料,以及用于加热保持在保持板的安装孔中的绝缘体的电炉。 保持板由含有不少于50重量%的氮化硅的陶瓷材料制成。