Aluminum plate oxidation treatment technology

For aluminum alloys, there are more anodic oxidations, which may be used in daily life. It is believed that the characteristics of this process can make aluminum parts produce a strong maintenance layer, which can be used to produce kitchenware and other daily necessities. However, the anodizing effect of cast aluminum is not good, the name is not good, and it can only be black. The aluminum alloy profile should be better, the following is a brief introduction to the method of aluminum plate oxidation treatment. In the past ten years, my country's aluminum oxide coloring technology has developed rapidly. Many factories have adopted new technology and have accumulated rich lessons in actual production. The most widely used non-ferrous metal structure material in the aluminum alloy profile industry is in aviation, aerospace, automobile, machinery manufacturing, shipbuilding, construction, and decoration. There are many mature and developing processes for anodizing aluminum and its alloys. It is possible to select a suitable process based on actual production requirements. Before choosing the oxidation process, the response to the aluminum or aluminum alloy material situation has some understanding. Because the quality of the material and the difference in the ingredients will directly affect the quality of aluminum products after anodizing. Regarding this point, Hong Jiude and Fan Jitongdao have specifically discussed it (see 'Plating and FinishingFor example, if the aluminum material has defects such as bubbles, scratches, peeling, roughness, etc., all defects will still be exposed after anodizing. The alloy composition also has a direct impact on the nominal appearance after anodization. For example, an aluminum alloy containing 1 to 2% manganese will be brownish-blue after oxidation. With the increase of the manganese content in the aluminum material, the nominal color after oxidation will change from brownish-blue to dark brown. Aluminum alloy with 0.6 to 1.5% silicon content will be gray after oxidation, and white gray when silicon content is 3 to 6%. Zinc-containing products are opalescent, chromium-containing products are golden-gray uneven, and nickel-containing products are light yellow. The most widely used non-ferrous metal structural material in the aluminum alloy profile industry is in aviation, aerospace, automobile, machinery manufacturing, shipbuilding, construction, and decoration. Individually, only magnesium and titanium containing more than 5% of aluminum contain gold, which may be colorless, transparent, bright and clean after oxidation. After choosing aluminum and aluminum alloy materials, it is natural to consider selecting a suitable anodizing process. The most widely used non-ferrous metal structural material in the aluminum alloy profile industry is in aviation, aerospace, automobile, machinery manufacturing, shipbuilding, construction, and decoration. At present, the sulfuric acid oxidation method, oxalic acid oxidation method and chromic acid oxidation method commonly used in our country have been specifically introduced in manuals and books, so there is no need to repeat them.
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