sealed diecast aluminum enclosure

　　How to achieve "leverage" in aluminum alloy die-casting parts

　　Aluminum alloy die-casting is a widely used aluminum alloy processing technology, and the processed aluminum alloy die-casting parts are loved by people for their excellent properties such as light weight, corrosion resistance, and high hardness, especially in the automotive industry. Aluminum alloy is the key to achieving "lightweighting" in the automotive industry, and the reason why aluminum alloy die-casting parts are so popular is also due to "leverage".

　　The damage of aluminum alloy die-casting parts mainly occurs on the surface, and improving their surface properties has important economic value. Electrochemical methods can be used to obtain a modified layer on aluminum alloy die-casting parts, which can enhance their corrosion resistance, wear resistance, and decorative performance. Aluminum is an active metal element, and it will undergo oxidation reaction with oxygen at room temperature to produce aluminum oxide. This is actually because aluminum is corroded. So why do we say that aluminum alloys are corrosion-resistant? This is because aluminum oxide is very dense, and oxidized aluminum alloys will form a layer of oxide film on the surface, which can resist acid and alkali corrosion. However, in natural environments, aluminum alloys cannot undergo ideal oxidation and often react with other substances, resulting in the phenomenon of "mold growth" in aluminum alloy die-casting parts. Therefore, anodizing treatment of aluminum alloy die-casting parts has emerged, aiming to form a dense protective layer on the surface of aluminum alloy die-casting parts, and can also generate oxide films with different functions according to the reactants, such as wear resistance, corrosion resistance, insulation, etc.

　　Aluminum alloy die-casting parts are "borrowed" through similar methods, but due to technological limitations, the yield rate of oxidation treatment is very low, especially on the premise of ensuring a certain appearance quality. Therefore, it is not recommended for customers to do oxidation treatment because the cost is too high. Customers who do not understand the situation cannot accept it. If oxidation treatment is done for aluminum alloy die-casting parts recklessly, it is easy to have conflicts with customers. Aluminum alloy die-casting parts can also be treated with powder coating, sandblasting, and baking paint surface treatment, and the effect will be more beautiful than oxidation treatment.

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