圆管有下列几种:抽制管(Tube),有缝制钢管(Seam pipe)及软管等.一般而言,抽制管之直径较小,由抽制或挤压而成,如铜管,铝管,玻璃管及塑胶管等,其性质常具展延性及可挠性;软管之直径亦不...
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weld seam pipe 焊缝管
spiral seam pipe 螺旋缝管
open-seam pipe 直缝管筒
high-frequency straight seam welded pipe 高频直缝焊接钢管
Seam welded clad pipe 缝焊包覆管
But with the same length of straight seam pipe than the weld length of 30 ~ 100%, and lower production rate.
但是与相同长度的直缝管相比，焊缝长度增加30 ~ 100%，而且生产速度较低。
This paper introduces the measure, welding method and inspection result to prevent the welding deformation formation of spiral-seam pipe header after tapping.
介绍了在螺旋焊缝汇管上焊接支管时的防变形措施、焊接方法和检验结果。
This paper introduces the producing and technology characteristics of the square and rectangular double-welded seam pipe. And designing of the pass parameters of the cold-bent channel steel.
介绍了双焊缝方矩形钢管生产技术的特点及冷弯等边槽钢孔型设计参数。
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