Fosfaatiseerimine
Fosfaatiseerimine, also known as phosphating, is a surface treatment process used to improve the corrosion resistance and adhesion of paint and other coatings on metal surfaces, primarily ferrous metals like steel and iron, as well as aluminum and zinc. It involves immersing the metal part in a phosphating solution, typically containing phosphoric acid and metal phosphates, at an elevated temperature. This chemical reaction causes a thin, adherent layer of insoluble metal phosphate crystals to form on the metal surface.
The resulting phosphate conversion coating is typically amorphous or crystalline, and its composition depends on the
The phosphating process typically involves several stages: cleaning and degreasing the metal surface to remove contaminants,