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    • 3. 发明授权
    • Pipe resistance butt welding apparatus
    • 管电阻对焊机
    • US4323752A
    • 1982-04-06
    • US136698
    • 1980-04-02
    • Boris E. PatonVladimir K. LebedevSergei I. Kuchuk-YatsenkoVasily A. SakharnovBoris A. Galyan
    • Boris E. PatonVladimir K. LebedevSergei I. Kuchuk-YatsenkoVasily A. SakharnovBoris A. Galyan
    • B23K11/093B23K11/04B23K37/04
    • B23K11/0935
    • A pipe resistance butt welding apparatus disposable within the pipes to be welded comprises a fixed expanding clamp and a movable expanding clamp, provided with clamping elements and actuating cylinders and intended to fix the pipes to be welded with respect to the apparatus. A cylinder to effect an axial movement of the movable expanding clamp is installed at the end at which this expanding clamp is located; the axial movement provides for drawing together the ends of the pipes to be welded in the course of fusion and upsetting. The cylinder for the axial movement of the movable expanding clamp is coupled with the actuating cylinder of the same clamp and with the clamping elements. The devices making up the apparatus and the cylinders are coaxially installed within a body wherefrom the clamp elements extend outwardly to engage the inner surface of the pipes being welded. Modifications of the apparatus for weld-joining of medium and large diameter pipes respectively are also described.
    • 在待焊接的管道中一次性使用的管电阻对接焊接设备包括固定膨胀夹具和可移动膨胀夹具,其设置有夹紧元件和致动缸,并且旨在相对于设备固定待焊接的管。 用于实现可移动膨胀夹具的轴向运动的缸体安装在该膨胀夹具所在的端部处; 轴向移动可以在融合和镦锻的过程中将被焊接管的端部拉制在一起。 用于可移动膨胀夹具的轴向运动的缸体与相同夹具的致动缸和夹紧元件联接。 构成设备和气缸的装置同轴地安装在主体内,夹紧元件从外部向外延伸以接合被焊接管的内表面。 还描述了分别用于中等和大直径管道焊接装置的修改。