RESISTANCE WELD REPAIRING OF CASING FLANGE HOLES
    2.
    发明申请
    RESISTANCE WELD REPAIRING OF CASING FLANGE HOLES 审中-公开
    西装法兰电阻电阻焊修复

    公开(公告)号:WO2013022613A1

    公开(公告)日:2013-02-14

    申请号:PCT/US2012/048501

    申请日:2012-07-27

    Abstract: A method for repairing" a degraded bolt hole in a casing flange by reaming and removing at least some corrosion on an inside and around the hole to form a reamed hole, mounting the flange to float relative to upper and lower electrodes of a welding machine, radially and axially clamping an area of the flange surrounding the reamed hole, placing upper and lower filler slugs in the reamed hole, placing the electrodes against upper and lower filler slugs and applying a welding current through the electrodes while applying pressure to the filler slugs with the electrodes and resistively heating- and melting- the filler slugs to form a weldment, and pulsing the welding current on and off. Pulsing may be performed with progressively increasing amounts of current. In situ tempering under the pressure of the electrodes may be performed on a substantially liquid pool formed by the welding current.

    Abstract translation: 一种修补“外壳法兰中的螺栓孔退化的方法,通过铰孔除去孔内部和周围的至少一些腐蚀以形成铰孔,将凸缘相对于焊接机的上下电极浮起来, 径向和轴向地夹持围绕延伸孔的凸缘的区域,将上部和下部填充片段放置在铰孔中,将电极放置在上部和下部填充物块上,并且通过电极施加焊接电流,同时向填料段施加压力, 电极和电阻加热和熔化填料段以形成焊件,并且打开和关闭焊接电流脉冲可以逐渐增加的电流进行,在电极的压力下的原位回火可以在 由焊接电流形成的基本上液体的池。

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