Vietnam Yongxing Aluminium Industry Co., Ltd and located at Lot 129, 130, 131 A Long Giang Industrial Park, Tan Lap 1 Commune, Tan Phuoc District, Tien Giang Province, Vietnam 860000. Please contact us via the official website: www.yongxing.vn

Several surface treatment films commonly used in Yongxing aluminum

The basic processes for the anodizing treatment of Yongxing aluminum materials are: surface cleaning, anodizing, coloring and sealing. Surface pretreatment is mainly used to eliminate grease, impurities and the like on the surface of aluminum profiles. Generally, after several steps of degreasing (degreasing), caustic washing, neutralization, and water washing, polishing may be performed if necessary. Degreasing generally uses 4% ≤ 10% sodium hydroxide solution to remove impurities and suspended ash. Neutralization is generally carried out by acid leaching with sulfuric acid or nitric acid, first with cold water or hot water, and then with cold water for secondary cleaning. After surface pretreatment, a formal anodization process can be entered. Film thickness of Yongxing aluminum surface treatment: The film thickness of the aluminum electrophoresis surface is generally classified into three grades: A, B, and S. Grade A: 12 μm oxide film + 9 μm electrophoresis film, the thickness of the composite film is not less than 21 μm. Grade B: 9 μm oxide film + 7 μm electrophoresis film, the thickness of the composite film is not less than 16 μm. S grade: 6 μm oxide film + 15 μm electrophoresis film, the thickness of the composite film is not less than 21 μm. Of course, customers can negotiate the film thickness with Yongxing aluminum manufacturers according to the actual needs, so that the use of aluminum profiles is more targeted. Generally speaking, the thicker the film thickness, the better the protection of the aluminum substrate.
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