Production Process of Oil Casing Pipe

　　Production process of oil casing pipe

　　Cold drawing:

　　Tube billet - inspection - shearing - heating - hot perforation - heading - capillary tube storage - pickling, phosphating, saponification - cold drawing - heat treatment - physical and chemical experiments - straightening - cutting head and tail - surface and size inspection - eddy current testing - ultrasonic testing -Turning wire and tube end processing

　　Hot rolled:

　　Tube billet- inspection - cutting - ring furnace heating - perforation - tube rolling - micro tension reduction - straightening - cutting head and tail - inspection - non-destructive testing - hydraulic test - Turning wire and tube end processing

 　　Quality Inspection:

　　Conventional non-destructive testing + hydrostatic test (magnetic particle testing MPI, eddy current testing ET, ultrasonic testing UT, radiographic testing RT.)

　　http://www.xysteelpipe.com/info/Production-Process-of-Oil-Casing-Pipe-1562-1.htm

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