1. Surface whitening treatment: during the processing of stainless steel, after rolling, binding, welding or after artificial surface fire heating, black oxide skin is produced.
This hard gray-black oxide skin is mainly NiCr2O4 and NiF two EO4 components, generally used before hydrofluoric acid and nitric acid for the removal of strong corrosion method.
But this kind of method cost big, pollution environment, harmful to human body, corrosive bigger, be eliminated gradually.
2. At present, there are two main ways to treat the oxide peel:
Blasting (shot) method: mainly is the use of spray micro glass beads, remove the surface of the black oxide skin.
Chemical method: the use of a pollution-free pickling passivating paste and room temperature non-toxic with inorganic additives cleaning fluid leaching.
So as to achieve the stainless steel color albino processing purposes.
It’s basically a dull color.
This method is suitable for large and complex products.
3. Treatment of stainless steel surface mirror finish: mechanical polishing, chemical polishing, electrochemical polishing and other methods can be used to achieve the mirror finish according to the complexity of stainless steel products and user requirements.
The advantages and disadvantages of these three methods are as follows:
4. Surface coloring treatment: stainless steel coloring not only gives stainless steel products a variety of colors, increase the product color variety, but also improve the product wear resistance and corrosion resistance.
More macro prosperous stainless steel information please visit: https://www.hongwangstainless.com
Post time: Nov-28-2019