Describe techniques for stainless steel pipe processing production

With the improvement of constant demand for stainless steel tube, so in view of the stainless steel pipe production technology is also in constant improvement, the following more accord with our use for stainless steel pipe, China bearing network provide stainless steel tube of the three common processing production technology. Drawing composite and mechanical expansion composite technology requirements of the law due to its own process, composite tube inside and outside the joint requirements for circular tube surface or inner tube surface, and the transmission cable and incompressibility of insulating material, conductance through drill pipe body will be in the cable joint of 'convex', thus drawing composite and mechanical expansion composite will damage to the insulation of the cable and performance, applicability is not strong. Hydrostatic pressure fluid force composite technology refers to the injection of high pressure water in the lining tube, with the increase of hydraulic pressure tube body lining tube, inner tube state by the elastic deformation to plastic deformation, and close to the outer tube body, when the inner tube pressure reaches a certain value, the outer tube body elastic deformation occurs, the inner tube and the outer tube body fit closely together, when the lining tube pressure after unloading, outer tube elastic recovery, the inner pipe and outer pipe body tightly into a whole. By hot metal pretreatment technology by molten iron pretreatment desulphurization - 120 t avoidances the combined-blowing converter dephosphorization - 120 t avoidances the combined-blowing converter ( Decarburization) - LF - RH to the slab continuous casting, cold charge to 1500 mm strip broadband timber, coiling, trial production of X80 pipeline steel hot-rolled broadband. The results showed that the w of X80 pipeline steel slab ( T( O) ) For 10-81 x 6，w( N) 58 x 10 - 6，w( H) < 1×10- 6; The steel yield strength ( Rel) For 600 ~ 640 mpa, tensile strength ( Rm) By the 720 ~ 765 mpa, the elongation ( A) For 28. 5% ~ 31. 5%, 60% of DWTT specimen fracture shear area ratio ( SA) Is 40% ~ 60%.