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    Valve gear with a bearing having a sliding surface against a valve shaft
    1.
    发明授权
    Valve gear with a bearing having a sliding surface against a valve shaft 有权
    具有轴承的阀齿轮具有抵靠阀轴的滑动表面

    公开(公告)号：US08167270B2

    公开(公告)日：2012-05-01

    申请号：US12309029

    申请日：2007-03-12

    申请人： Mao Takei ,  Toshinari Nishimura ,  Takahiko Hirohata ,  Masaya Kanikawa

    发明人： Mao Takei ,  Toshinari Nishimura ,  Takahiko Hirohata ,  Masaya Kanikawa

    IPC分类号： F16K25/00

    CPC分类号： F16K27/00 ,  B23K10/027 ,  Y10S384/912 ,  Y10S384/913

    摘要： The invention improves reliability of a valve gear in which a cobalt-based alloy is welded by plasma power building up. The valve gear includes a bearing 2 having a sliding surface against a valve shaft 1. The valve gear having a welded layer 12 made of heat-resistant cobalt-based alloy, based on plasma powder building up, formed on the sliding surface against the valve shaft 1. The welded layer 12 includes a first welded layer 12a formed on the surface of the bearing 2, having a dilution ratio of 5 to 25% and a second welded layer 12b formed on the first welded layer 12a, having a dilution ratio of 50% or less of the dilution ratio of the first welded layer 12a. The dilution ratio indicates the penetration amount of the welding metal into the base metal, and is a value obtained by B/A×100 (%) wherein A represents the total amount of the welded metal and B represents the amount of the welding metal penetrating into the base metal.

    摘要翻译： 本发明提高了通过等离子体动力建立来焊接钴基合金的阀齿轮的可靠性。 阀齿轮包括具有与阀轴1相对的滑动面的轴承2.该阀齿轮具有由耐热钴基合金制成的焊接层12，该焊接层基于等离子体粉末积聚，形成在与阀 焊接层12包括形成在轴承2的表面上的稀释比为5〜25％的第一焊接层12a和形成在第一焊接层12a上的第二焊接层12b，稀释比为 50％以下的第一焊接层12a的稀释比。 稀释比表示焊接金属在基体金属中的渗透量，并且是通过B / A×100（％）得到的值，其中A表示焊接金属的总量，B表示焊接金属的渗透量 进入贱金属。

    Valve Gear
    2.
    发明申请
    Valve Gear 有权
    阀门齿轮

    公开(公告)号：US20100006793A1

    公开(公告)日：2010-01-14

    申请号：US12309029

    申请日：2007-03-12

    申请人： Mao Takei ,  Toshinari Nishimura ,  Takahiko Hirohata ,  Masaya Kanikawa

    发明人： Mao Takei ,  Toshinari Nishimura ,  Takahiko Hirohata ,  Masaya Kanikawa

    IPC分类号： F16K27/00 ,  B23K9/04

    CPC分类号： F16K27/00 ,  B23K10/027 ,  Y10S384/912 ,  Y10S384/913

    摘要： The reliability of a valve gear in which a cobalt-based alloy is welded by plasma powder building-up welding is improved. Disclosed is a valve gear including a bearing 2 having a sliding surface against a valve shaft 1, the valve gear being characterized in that: a welded layer 12 made of a heat-resistant cobalt-based alloy, based on plasma powder building-up, is formed on the sliding surface against the valve shaft 1; and the welded layer 12 includes a first welded layer 12a formed on the surface of the bearing 2, having a dilution ratio of 5 to 25% and a second welded layer 12b formed on the first welded layer 12a, having a dilution ratio of 50% or less of the dilution ratio of the first welded layer 12a. The dilution ratio is a parameter indicating the penetration amount of the welding metal into the base metal, and means a value obtained by B/A×100 (%) wherein A represents the total amount of the welded metal and B represents the amount of the welding metal penetrating into the base metal.

    摘要翻译： 通过等离子体粉末堆积焊接焊接钴基合金的阀齿轮的可靠性提高。 公开了一种阀齿轮，其包括具有抵靠阀轴1的滑动面的轴承2，该阀齿轮的特征在于：基于等离子体粉末积聚的由耐热钴基合金制成的焊接层12， 形成在相对于阀轴1的滑动表面上; 并且焊接层12包括在轴承2的表面上形成的第一焊接层12a，其稀释比为5％至25％，第二焊接层12b形成在第一焊接层12a上，稀释比为50％ 或更低的第一焊接层12a的稀释比。 稀释比是表示焊接金属在基体金属中的渗透量的参数，是指通过B / Ax100（％）求出的值，其中A表示焊接金属的总量，B表示焊接金属的量 渗入贱金属。