What packaging steel strip post-processing step?

A roll of qualified packaging steel strip takes a lot of working procedure, and most of the products has just opened a layer of protection. So the packaging steel strip in the factory to do some further processing. And what are the steps to the post-processing? Post processing can be divided into three steps: passivation, phosphating, oil. 1. Passivation: as the last line of chemical cleaning process, in order to ensure that the material is the purpose of the passivation of anticorrosion, after passivation will generate protection membrane on the surface of metal products, have the effect of slow down the corrosion cycle. Passivation process is simple, convenient, only need to add the efficient corrosion inhibitor, fog inhibitor can prevent metals from corrosion phenomena. 2. Early phosphating: after preliminary phosphating can form a layer of hot dip galvanized steel strip for stamping phosphate solid lubricating film, improve the corrosion resistance. 3. The function of oil: oil is antirust effect of the steel plate, can guarantee all the year round in the normal temperature and dry environment quality will not occur.