Zhang Qi, Su Hongying. REVERSE BENDING FORMATION OF LONGITUDINAL ERW PIPE WITH SMALL AND MEDIUM DIAMETERS[J]. STEEL PIPE, 1992, 21(3): 12-13.
    Citation: Zhang Qi, Su Hongying. REVERSE BENDING FORMATION OF LONGITUDINAL ERW PIPE WITH SMALL AND MEDIUM DIAMETERS[J]. STEEL PIPE, 1992, 21(3): 12-13.

    REVERSE BENDING FORMATION OF LONGITUDINAL ERW PIPE WITH SMALL AND MEDIUM DIAMETERS

    • A new hollow shell formation method, the reverse bending process, is presented. The process, with constant and minimum elongation of strip steel edge, can meet the requirements of expanding varieties and sizes with higher welding speed.
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