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Introduce some misunderstandings of surface processing of stainless steel plates

by:Topson     2022-05-17

When processing various stainless steel products, it is necessary to perform surface processing on stainless steel first. Affected by various factors, there may be certain problems on the surface, such as weld defects, and scratches may appear in the performance. Poor grinding and polishing results may also cause poor stainless steel surfaces.

Stainless steel surface processing, the welding seam defects are more serious, which are often encountered in the stainless steel surface processing. The manual mechanical grinding treatment method is used to make up for it. The grinding marks produced will cause the surface to be uneven and affect the appearance. The problem of inconsistent surface is that only pickling and passivation is performed on the weld, which also causes uneven surface and affects the appearance.

It is difficult to remove scratches, and the overall pickling passivation cannot remove various scratches generated during processing, and also cannot remove carbon adhering to the surface of stainless steel due to scratches and welding spatter. Impurities such as steel and splash lead to rust due to chemical corrosion or electrochemical corrosion in the presence of corrosive media.

For the uneven grinding, polishing and passivation of stainless steel surface processing, pickling and passivation treatment is carried out after manual grinding and polishing. Ideal for even surfaces. And the cost of man-hours and auxiliary materials are also higher. Pickling passivation paste is not a panacea, and it is difficult to remove the black oxide scale produced by plasma cutting and flame cutting.



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