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    • 6. 发明授权
    • Methods and apparatus for manufacturing tubes
    • 用于制造管子的方法和装置
    • US4800250A
    • 1989-01-24
    • US64548
    • 1987-06-22
    • Michio WatanabeKazuhisa IshibashiKenji MatsunoHideo Kurashima
    • Michio WatanabeKazuhisa IshibashiKenji MatsunoHideo Kurashima
    • B21D51/26B21C37/08B23K26/26B23K26/00
    • B21C37/0822B21C37/08B23K26/262
    • A method and apparatus for guiding the opposed edges of sheet material into substantially abutting edge-to-edge relationship with one another and thereafter welding said edges by a high energy welding source to form a seam. The invention enables the continuous high speed butt welding of the sheet material to form cylindrical bodies. The apparatus includes three elements, a mandrel, a mandrel holder and tube holders. Sheet material is fed to around said mandrel and advanced by a tube holder with an edge of two opposite edges of said sheet material being in intimate contact with a basis plane of said mandrel holder. Another edges is slided into contact with above mentioned edge of sheet material making abutting relationship after passing through the basis plane of said mandrel holder. These abutting edges pass a high energy zone of a welder and butt welded to make a tube.
    • 一种用于将片材的相对边缘引导成彼此基本上邻接的边缘到边缘关系的方法和装置,然后通过高能量焊接源焊接所述边缘以形成接缝。 本发明能够使片材的连续高速对接焊接形成圆柱体。 该装置包括三个元件,心轴,心轴保持器和管座。 片材被馈送到所述心轴周围并由管保持器推进,其中所述片材的两个相对边缘的边缘与所述心轴保持器的基础平面紧密接触。 另外的边缘与上述片材的边缘滑动接触,在穿过所述心轴保持器的基面之后形成邻接关系。 这些邻接边缘通过焊机的高能区域并对接焊接以制造管。