The processing of stainless steel flanges requires knowledge and attention to some issues:
1. Disadvantages of welds: Welds of stainless steel flanges have more serious disadvantages. If manual mechanical grinding methods are used to compensate, then the traces of polishing that occur will form uneven surfaces and affect the appearance;
2. Non-uniformity of polishing and passivation: After pickling and polishing, the pickling and passivation
treatment is performed. For a workpiece with a large area, it is difficult to achieve a uniform and uniform treatment effect, and an aspirational uniform surface cannot be obtained. There are also its shortcomings in the cost of labor, accessories costs are also higher;
3, scratches difficult to remove: the entire pickling passivation, in the presence of corrosive media will occur chemical corrosion or electrochemical corrosion and rust, can not remove the carbon due to scratches, welding spatter and adhere to the surface of stainless steel Steel, splashes and other impurities.
So how to solve the problem of flange processing?
1, select the blanking, after completion, enter the next process, stainless steel different parts according to the requirements of processing into the corresponding process;
2, when bending the first to be based on the size of the drawings, stainless steel 304 seamless steel pipe material thickness is determined when the tool and sipe bending, to prevent product and tool collision caused by deformation is the key to the choice of upper mold (in the same In a product, different types of upper molds may be used. The selection of the lower mold is determined based on the thickness of the plate;
3, in order to weld solid, hit the bumps on the workpiece to be welded, the bumps can be evenly touched before the power welding and the flat plate to ensure the consistent heating of the points, together can also determine the welding position, the need for welding, to adjust Good pre-pressure time, pressure-keeping time, maintenance time, and rest time to ensure that the workpiece can be spot-welded.