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With the continuous advancement of science and technology, various industries have now developed quite well. Spray painting is no exception. To ensure that you get good spray painting products after spending money, here are a few key points to keep in mind when purchasing. I hope this can be of good help to those involved. 

During the spraying process, appropriate thickness of anchor fasteners should be welded on the spraying surface. The particles of the coating spray should not exceed the diameter of the spray gun. The spray gun should be able to flow well in the material conveying pipe and should not fall off when the spraying body contracts. It is necessary to ensure continuous coating construction. 

Regarding the problem of spray exhaust gas, Xinlan Environmental Protection has specially prepared several common methods to solve the spray exhaust gas in advance. The key points for treating organic chemical exhaust gas include: water spraying method, isolation method, ignition method, digestion and absorption method, cold suspicion method, low-temperature plasma catalytic reaction method, adsorption method and photocatalysis method. 

The chemical oxidation conversion film on the metal surface refers to a processing technology that uses chemical oxidation treatment agents to cause a chemical oxidation reaction between the metal surface and the solution interface, thereby generating a stable oxide film. The chemical passivation conversion film is the product of the oxidation reaction between anions and the metal in the medium, enabling it to achieve self-oxidation conversion. The chemical oxidation process is complex and is to a certain extent the result of the combined effects of chemistry, electrochemistry, and physical chemistry. 

After aluminum is subjected to anodic oxidation, a dense film layer (ranging from several micrometers to several hundred micrometers) can be obtained on the surface of aluminum and its alloys, which is much thicker than the natural oxide layer. After the artificial oxide film is sealed, the amorphous oxide film transforms into a crystalline oxide film, and the pores are also sealed, allowing the luster of the metal surface to remain unchanged for a long time, improving corrosion resistance and mechanical strength. After coloring, a decorative appearance can be achieved. Due to the many properties of aluminum and its alloy products after anodic oxidation, anodic oxidation technology is widely used in the surface treatment of aluminum products. Industrial applications can be roughly divided into the following categories. 

The natural oxide layer on the surface of aluminum products is soft and thin, with poor corrosion resistance and cannot serve as an effective protective layer. It is not suitable for coloring. Chemical oxidation and anodization are mainly used to create artificial oxide films. Oxidation is a process where certain less valuable metals of aluminum react in weakly alkaline or weakly acidic solutions, causing the natural oxide film on the surface to thicken or generating some other passivation films. Common chemical oxide films include chromic acid films and phosphoric acid films. These films are thin and absorbent, and can also be colored and sealed. Compared with anodized films, chemical oxide films are much thinner, have lower corrosion resistance and hardness, are not easy to color, and have poor light resistance after coloring. Therefore, the coloring and color matching of aluminum metal only involves the introduction of anodization treatment.