Stainless steel in the process of practical application, there are many causes can make our stainless steel screen mesh passivation membrane damage, the transformation of the passivity of stainless steel to living condition.
Result in the corrosion resistance of stainless steel.
The chloride ion.
The chloride ion to the harm of stainless steel mesh belt is great.
Should be strict control in the process of passivation passivation solution, the chloride ion content in passivation with chemical materials used for the chloride ion are limited.
Make the passivation liquid water and clean water also have strict quality request for the chloride ion, to ensure that the passivation products not cleave the chloride ion, avoid future trouble.
Surface cleanliness.
For stainless steel mesh belt, the lower the surface roughness, looks more lubrication, foreign body harder weng, the lower the risk of each partial corrosion.
Therefore, stainless steel mesh belt should as far as possible choose refined appearance.
In addition, the stainless steel surface cleanliness is also very important, the final cleaning after passivation should be careful, because of the residual acid promotes the cathode reaction, break the membrane layer, so that the activation of stainless steel, corrosion resistant function drastically reduce.
Using the environment medium.
Stainless steel stainless steel mesh belt passivation film belongs to the thermodynamics on the bay mouth of metastable structure is the maintenance efficiency related to environmental medium.
Use should be cleaned regularly, get rid of harmful material private attached to their appearance for a long time.
Especially in chloride environment, prevent the chloride ion milk with appearance and concentrated mouth in the water for a long time, such as stainless steel is used in the food industry equipment, every time after contact with the food, all want to wash, to avoid the effect of chloride ion, harm passivation membrane.
Such as containers and equipment used for dairy products, dairy products contain chloride has the damage effect on the passivation film.
Such as long time all dairy products, stainless steel filter can lead to capacity and equipment corrosion perforation, consequently to regular cleaning, restoring the passivation film.
The connotation of the stainless steel mesh belt.
Stainless steel stainless steel mesh belt of martensite content of chromium and nickel content had a great influence on function of the passivation of stainless steel.
Stainless steel filter low nickel content, stainless steel filter function passivation is low.
Martensite stainless steel passivation membrane function than austenitic stainless steel passivation function.