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What kind of problems exist when processing stainless steel flanges and how to solve them?
Release time:
Dec 05,2023
Weld defects: The weld defects of stainless steel flanges are serious.
Weld defects: The weld defects of stainless steel flanges are serious. If manual mechanical grinding is used to make up for them, the grinding marks will cause uneven surface and affect the appearance. Uneven polishing and passivation: pickling and passivation after manual polishing are carried out, it is difficult to achieve uniform treatment effect and ideal uniform surface for workpieces with large area. There are also its shortcomings in the cost of working hours, the cost of accessories is also higher;
Scratches are difficult to remove: the overall pickling passivation, in the presence of corrosive media will occur under the conditions of chemical corrosion or electrochemical corrosion and rust, but also can not remove due to scratches, welding splash and adhesion on the surface of stainless steel carbon steel, splash and other impurities;
How to solve the problem of stainless steel flange processing?
1. Select the blanking, after completion, enter the next process, and different stainless steel workpieces enter the corresponding process according to the processing requirements;
2. When bending, the cutting tool and groove used in bending should be determined according to the size on the drawing and the thickness of stainless steel 304 seamless steel pipe. Avoiding deformation caused by collision between the product and the cutting tool is the key to the selection of the upper die (in the same product, different types of upper dies may be used). The selection of the lower die is determined according to the thickness of the plate.
3. In order to weld firmly, bump points are made on the workpiece to be welded, so that the bump points can be in uniform contact with the flat plate before power-on welding, so as to ensure the consistency of heating at all points. At the same time, the welding position can be determined. Welding is required. The preloading time, holding time, maintenance time and rest time should be adjusted to ensure that the workpiece can be spot welded firmly.
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