The surface treatment of aluminum profiles mainly includes: fluorocarbon spraying, powder spraying, anodic oxidation (cathodic oxidation), electrophoresis, electroplating, etc.
There are similarities and differences in the surface treatment methods of these aluminum profiles, with the same point being that protective films are added to the surface of the aluminum profiles; The difference is that fluorocarbon spraying and powder spraying rely on electrostatic coating on the surface of aluminum profiles, so they are also known as electrostatic spraying; Anodic oxidation and electrophoresis are protective films formed by the positive and negative electrodes of direct current, as well as the positive and negative phases of molecules, atoms, and ions that form films, moving and adhering to metal surfaces;
Electroplating, anodizing, and electrophoretic arts have similarities, but the difference is that the electroplated material can not be a metal. The electroplating solution consists of a compound containing the coated metal (zinc, chromium, nickel, etc.), conductive salts, buffering agents, pH regulators, and additives in an aqueous solution
1. Electroplating can process hardware and plastic.
2. Electrophoresis and anode can only handle conductive objects.
3. Electroplating and electrophoresis both add materials to the surface of the treated object, in other words, increase in thickness.
4. Anodizing, on the other hand, involves removing materials from the object, which means that the thickness will decrease after anodizing.
In summary, the surface treatment of aluminum profiles requires estimating whether the dimensions of oxidized aluminum profiles are qualified based on the specific size requirements and tolerance requirements of the customer.
