Stainless steel threaded flanges processing pay attention to some problem

　　Weld defect: The weld defect of stainless steel threaded flange is more serious. If manual mechanical polishing is used to make up for it, the resulting grinding marks will cause uneven surface, which will affect the appearance.

　　Non-uniform passivation in grinding and polishing: after manual grinding and polishing, pickling passivation can hardly achieve uniform treatment effect on large workpieces, and can not get ideal uniform surface. Besides, its disadvantages include man hour cost and excipient cost.

　　Scratch is difficult to remove: the whole pickling passivation, in the presence of corrosive media will be chemical or chemical corrosion and rust, also can not remove the scratch, welding splash and adhesion to the surface of stainless steel carbon steel, splash and other impurities;

　　Then how to solve the problem of stainless steel threaded flange processing?

　　Choose blanking, finish, enter the next process, different stainless steel threaded flange according to the processing requirements into the corresponding process;

　　When bending, the cutter and groove should be determined according to the size of the drawing and the thickness of the DIN2631 Pn25 6 Inch Stainless Steel Threaded Flange. The key to selecting the upper die is to avoid the deformation caused by the collision between the product and the cutter.The selection of the lower die should be based on the thickness of the plate. Sure.

　　In order to solder firmly, punching a bump on the workpiece to be soldered can make the bump contact with the flat plate evenly before electrified welding, so as to ensure the uniform heating of each point. At the same time, it can also determine the welding position and needs to be soldered. Stainless steel threaded flange is necessary to adjust the preloading time, holding time, holding time and resting time to ensure that the workpiece can be spot.