Introduction to surface treatment methods of large metal parts after machining

In the processing of large metal parts, surface treatment is a very important part. Generally, the surface treatment includes:
① Surface natural color whitening treatment.
② Surface mirror bright treatment. Mirror gloss treatment method for stainless steel surface: according to the complexity of stainless steel products and different user requirements, mechanical polishing, chemical polishing, electrochemical polishing and other methods can be used to achieve mirror gloss. The advantages and disadvantages of the three methods are as follows: mechanical polishing, good leveling, bright, high labor intensity and serious pollution; Chemical polishing, less investment, small batch production is more cost-effective.
③ Surface coloring. For the processing and manufacturing of large metal parts, the coloring of the surface can not only give various colors and increase the variety of products, but also improve the wear resistance and corrosion resistance of products.