The advantages of passivation in Dalian metal surface treatment:

The advantages of passivation in Dalian metal surface treatment:

Dalian metal surface treatment is a process method of artificially forming a surface layer on the surface of the substrate material that has different mechanical, physical, and chemical properties from the substrate. The purpose of surface treatment is to meet the corrosion resistance, wear resistance, decorative or other special functional requirements of the product. For metal castings, the commonly used surface treatment methods include mechanical polishing, chemical treatment, surface heat treatment, spray coating, etc.

Surface treatment has long been a surface protection technology that improves the corrosion resistance, wear resistance, and other properties of products by changing the mechanical, physical, and chemical properties of the substrate material surface. Traditional surface treatment methods mainly include galvanizing, electrophoresis, blueing, blackening, passivation, phosphating, spraying, coloring, painting, infiltration, shot blasting, and so on. But currently, various surface processing technologies have been widely developed for decoration or other special functional requirements on the surface of materials such as metal, glass, plastic, etc., achieving excellent performance in multiple aspects such as corrosion resistance, appearance, texture, and function of products.

The advantages of passivation in Dalian metal surface treatment

1. Compared with traditional physical sealing methods, passivation treatment has the characteristic of absolutely not increasing the thickness of the workpiece and changing the color, improving the precision and added value of the product, making operation more convenient;

2. Due to the non reactive nature of the passivation process, the passivation agent can be repeatedly added and used, resulting in a longer lifespan and more economical cost.

3. The passivation promotes the formation of oxygen molecular structure passivation film on the metal surface, which is dense and stable in performance, and also has a self repairing effect in the air. Therefore, compared with the traditional method of applying rust prevention oil, the passivation film formed by passivation is more stable and has more corrosion resistance.

The advantages and disadvantages of metal surface treatment are that it can form a protective film on the surface of various easily oxidized metal devices through the principles of cathodic adsorption and anodic dissolution. There are two basic methods for phosphating treatment: immersion method and spray method. Although the quality of phosphating largely depends on the quality of oil and rust removal, spray method is also an effective process method for improving phosphating quality and can shorten process time. The purpose of metal surface treatment: After metal surface treatment, in addition to confirming that the characteristics of the sampled products meet the requirements, it is also necessary to confirm the premise of indirect measurement.