Stainless steel surface treatment and product processing common 8 major problems

Edit:handler Date:2019-05-24 18:39 / Popularity:309

There are 8 major problems in stainless steel surface treatment and product processing:

1. Weld defect: The weld defect is serious, and it is compensated by manual mechanical grinding method. The resulting grinding marks cause uneven surface and affect the appearance.

2, the surface is inconsistent: only the weld is passurized and passivated, which also causes the surface to be uneven, affecting the appearance.

3, the scratch is difficult to remove: the overall pickling passivation, can not remove the various scratches produced during the process, and can not remove the carbon steel, splash and other impurities adhered to the stainless steel surface due to scratches, welding spatter Causes rusting due to chemical or electrochemical corrosion in the presence of corrosive media.

4, grinding and polishing passivation uneven: hand-polished and polished after pickling and passivation treatment, for a large area of the workpiece, it is difficult to achieve a uniform and uniform treatment effect, can not get the ideal uniform surface. And the cost of working hours and the cost of auxiliary materials are also high.

5, pickling ability is limited: pickling passivation paste is not omnipotent, plasma cutting, flame cutting and black scale, it is difficult to remove.

6. Scratches caused by factors are more serious: during the process of lifting, transporting and structural processing, the scratches caused by human factors such as bumping, dragging and hammering are serious, which makes the surface treatment more difficult and also causes corrosion after treatment. The main reason.

7. Equipment factors: In the process of profile, sheet bending and bending, scratches and creases are also the main cause of corrosion after treatment.

8. Other factors: During the process of purchasing and storing stainless steel raw materials, bumps and scratches caused by lifting and transportation are also serious, and it is also one of the causes of rust.

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