Problems encountered in processing stainless steel flanges

        1, weld defect: the weld defect of ASME B16.48 A182 Stainless Steel Spectacle Blind Flange is more serious. If it is made up by the manual grinding process, the grinding marks will cause the uneven surface, which will affect the beauty.

　　2, grinding and polishing passivation is uneven: manual grinding and polishing after pickling and passivation treatment, the larger area of the workpiece, it is difficult to achieve uniform and uniform treatment effect, can not get an ideal uniform surface. Besides, its disadvantages include man hour cost and excipient cost.

　　3, scratch is difficult to remove: overall pickling passivation, in the presence of corrosive medium in the presence of chemical corrosion or electrochemical corrosion and rust, and can not remove the scratch, welding spatter and adhesion on the Stainless Steel Flange, spatter and other impurities.