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    • 99. 发明专利
    • Manufacture of weld pipe
    • 焊管制造
    • JPS61123484A
    • 1986-06-11
    • JP24297184
    • 1984-11-16
    • Sumitomo Metal Ind Ltd
    • INABA HIROTSUGUYAMAUCHI NOBUYUKI
    • B23K13/02B23K13/06
    • B23K13/06
    • PURPOSE:To prevent the penetrator defect of welding by blowing an organic substance liquid to a generated high temperature inner surface bead part at a specified flow velocity or above and evaporating it, and forming a non- oxidizing atmosphere in the vicinity of a pressure welding point, in case of a pressure electric conduction heating welding of the end face of the curved open pipe side of a metallic band. CONSTITUTION:The end face of an open pipe OP side obtained by curving a metallic band is heated by a high frequency coil 4 and pressed and welded by a squeeze roll 5r. The organic substance liquid 2 which passes through an in-heater 20 being in the vicinity of the high frequency coil of the inside of the open coil OP is heated, blown to the generated high temperature bead part at >=10cm/s flow velocity and evaporated, and forms a non-oxidizing atmosphere in the vicinity of a pressure welding point A. A welding defect called as the penetrator of a weld zone is prevented. In this regard, as for the organic substance liquid 2, any of lubricating oil, cutting oil, machine oil, heavy oil, light oil, alcohol, or a mixed oil thereof may be used.
    • 目的:通过以特定的流速或以上吹送生成的高温内表面胎圈部分而使有机物质液体吹送而蒸发,防止焊接缺陷,并在压接点附近形成非氧化性气氛 在金属带的弯曲开口侧的端面的压力导电加热焊接的情况下。 构成:通过弯曲金属带获得的开放管OP侧的端面被高频线圈4加热,并通过挤压辊5r进行压制和焊接。 通过位于开放线圈OP内部的高频线圈附近的加热器20的有机物质液体2以> 10cm / s的流速被加热到产生的高温珠部,并且 蒸发,并在压焊点A附近形成非氧化性气氛。防止被称为焊接区域的穿透器的焊接缺陷。 在这方面,对于有机物质液体2,可以使用润滑油,切削油,机油,重油,轻油,醇或其混合油中的任何一种。