When the workpiece needs a long time of storage and transportation, it is easy to produce corrosion, and the corrosion product is usually white rust. The workpiece should be passivated, and the common passivating method is chromium-free passivation.
So what is the advantage of stainless steel environmental protection (chromium-free) passivation solution over rust prevention oil? Anti-rust oil is the use of oil film to close the pores on the metal surface to isolate contact with oxygen and effectively prevent rust, in fact, no reaction. The oil film is easy to be removed and destroyed with the progress of production.
The chromium-free passivation is the use of oxidizing substances in the passivation solution to produce REDOX reaction with the metal, and the effect is to generate a very thin, dense, good covering performance, and firmly adsorbed on the metal surface of the passivation film.
This process is a chemical reaction.
So at the same time, let's also understand the advantages of stainless steel environmental protection (chromium-free) passivation solution?
1. Compared with the traditional physical sealing method, chromium-free passivation treatment has the characteristics of not increasing the thickness of the workpiece and changing the color, improving the precision and added value of the product, making the operation more convenient.
2. Chromium-free passivation promotes the formation of oxygen molecular structure passivation film on the metal surface, the film layer is dense, stable performance, and in the air, therefore, compared with the traditional method of coating anti-rust oil, the passivation film formed by chromium-free passivation is more stable and more corrosion resistant.
EST Chemical Group has been adhering to the "heart to provide customers with competitive products and services for the benefit of human society" mission belief, continuous innovation, for customers to solve problems in the field of passivation rust prevention, to provide high quality high-tech products, and according to customer requirements to provide a full set of solutions to meet the special needs of customers. We are dedicated to provide quality service and quality products for every customer, and look forward to working with you to win!
Post time: Nov-20-2023