Industrial aluminum profile anodizing dyeing process and processing method

Industrial aluminum anodizing black is a very common aluminum surface treatment process. The entire process can protect the aluminum material and add decorative effects to the aluminum material. It can be roughly divided into three stages: aluminum profile before anodizing, middle , The last three processes; talk to the editor to understand how it is done.

 Aluminum profile oxidation black

1. Surface pretreatment before anodizing: clean the surface of the profile by chemical or physical methods to expose the pure matrix to facilitate obtaining a complete and dense artificial oxide film; it is also possible to obtain a mirror or matte and sub-surface by mechanical processing Glossy surface increases the beauty of appearance.　

2. Anodizing: The surface of the pretreated profiles will undergo anodization on the surface of the substrate under certain process conditions to form a dense, porous, and strong adsorption anticorrosive coating.

 CNC machining of aluminum profile

3. Sealing after anodic oxidation: Use HT800 high temperature sealing agent to close the pores of the porous oxide film formed after anodic oxidation to enhance the anti-pollution, corrosion resistance and wear resistance of the oxide film. The oxide film is colorless and transparent. Using the strong adsorption of the oxide film before sealing, some metal salts can be adsorbed and deposited in the film pores, which can make the appearance of the profile show many colors other than the natural color (silver white), such as: black, bronze, Golden yellow and stainless steel color, etc.

Non-standard aluminum profile opening

4. Different application environments and different oxidation colors. For example, the automatic machinery industry and assembly lines mostly use the natural color of aluminum, usually silver-white and electrophoretic colors. The surface is bright, the service life is longer than iron, and the appearance is more durable; Dongguan Guoyao Aluminum specializes in industrial aluminum profile production, aluminum profile opening, aluminum profile extrusion post-oxidation processing services, if you need customized industrial aluminum, please call for consultation.