Screw joint coupling for oil pipes
作者： Kenichi Toyama , Mikio Ueki , Hidenori Yasuoka , Toshio Sato , Masao Handa
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摘要: A basic structure of a screw joint coupling for oil pipes according to the invention is that main sealing portion constructed with formed axially in convex at an end male screw, and taper inner side female are butted point former part stopper latter. The has shrinkage allowance ΔD seal part, which regulated size relation between Δd pressure P part. In addition, specific values selected as load flank angle, radius curvature tapering angle screw.
google.de 参考文章(4)
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