There is a process in the production process of all-aluminum pneumatic aluminum tube called surface treatment. Do you know why pneumatic aluminum tube need to be oxidized? The purpose of aluminium Pipe surface treatment is to solve the three problems of corrosion resistance, decoration and functionality of the profile.
The pneumatic cylinder tube pipe needs to be polished before the surface treatment of the aluminum tube, and the polishing is divided into three methods, namely chemical polishing, electropolishing and mechanical polishing. Chemical polishing and electropolishing are performed after mechanical polishing is first used to achieve the bright effect of the Air Cylinders Tube, and it can still maintain the same brightness after the surface is oxidized.
There is a special method of surface treatment called aluminum conversion coating process, Chen Zhi is “aluminum and all-aluminum Aluminium Tube Profiles chromate conversion coating”. The aluminum profile produced according to this method can not only achieve the conductive effect, but also enhance The protective ability of aluminum is a technology specially researched to enhance the conductive effect and protective ability of aluminum. This method has low technicality, low processing cost, and good processing performance, and is widely used in the military electronics industry.
There are various oxidation methods. Before surface treatment of aluminum tubes, different oxidation treatment processes should be selected according to their own requirements:
1. Anodizing-A dense aluminum oxide film is produced on the surface of the aluminum pneumatic cylinder tube to make it react with air again to improve the protective performance of the aluminum tube. At the same time, the oxide film isolates the free ions inside, making it impossible to conduct electricity.
2. Coloring after anodic oxidation-various colors are formed on the oxide film to meet certain usage requirements, such as black for optical instrument parts and golden yellow for souvenir medals.
3. Chemical oxidation-used for general protection, the processing technology is generally difficult, and the production cost is low.
4. Apply organic protective layer (organic paint such as paint)-used for external protection and decoration of equipment, usually on the basis of oxidation.
5. Conductive oxidation—enhance the ability of protection while maintaining the conductivity of the aluminum air cylinders tube.
Post time: Aug-10-2021