There are four factors that affect the coating of stainless steel plate
The low content of nickel and martensite in stainless steel has a great influence on the function of stainless steel.
Second, stainless steel plate uses the medium in the environment. In thermodynamics, the passive film of stainless steel belongs to the suppressed metastable structure, and its maintenance role is related to the medium in the environment. However, no matter what kind of environment it is used in, the stainless steel plate should be regularly cleaned to remove the harmful substances attached to the surface of the stainless steel plate.
3. Surface cleanliness of stainless steel plate. As for stainless steel alloy, the smoother the surface of stainless steel, the lower the roughness, the more difficult it is for foreign matters to adhere to the stainless steel surface, which is not easy to adhere, so the corrosion of stainless steel surface will be reduced to a low point. Therefore, the surface of stainless steel should be finished as much as possible. The passivation cleaning of other stainless steel plates should also be carried out carefully, so as to make the remaining acid solution conducive to the anode reaction, maintain the integrity of the film, and ensure the corrosion resistance of the stainless steel plate surface.
4. Chloride ion, chloride ion on the stainless steel plate coating damage is very large, so we in the surface of stainless steel plate passivation process to strictly control the content of chloride ion in the passivation solution, according to the damage of chloride ion to stainless steel plate. Many chemical materials for passivation have limited requirements for chloride ion, and water for passivation solution and cleaning also has strict water quality requirements for chloride ions, so as to ensure that the passivation products do not contain chloride ions.
Source: Jiangmen stainless steel plate http://www.jmdxbxg.com/index.html