Chemical conversion of aluminum and aluminum profile surface is made of aluminum and chemical oxidant solution constituted a direct response, the applied voltage without going through this process, known as chemical oxidation disposal. The nature of its chemical conversion solution can be divided into two major categories of basic and acidic, but its nature but also for the oxide film layer, phosphate film, chromate film and chromate a phosphate film points. The film received collectively referred to as chemical conversion coating.
Wider use of chemical conversion coating, can play in addition to the usual protective effect, conversion coating made some technical formula also both decoration effect (the surface to be coated with varnish), and some can progress and coatings contact strength ; some later disposal by chemical conversion can still maintain the original conductivity function, therefore, also known as conductive film conversion coating.
Disposal of chemical conversion technology is simple to operate, simple and necessary equipment, high production efficiency, low production costs, conversion coating obtained using a wide scale, there is a broad vision and promote the value of the coating species.