Aluminum die-casting is a highly efficient and versatile manufacturing process widely used in producing complex and lightweight parts. This technique involves forcing molten aluminum into a mold cavity under high pressure, producing parts with excellent dimensional accuracy and surface finish. While aluminum die-cast parts are inherently strong and durable, applying a protective and decorative coating can significantly enhance their performance and longevity. Surface finishing is a critical step in the production of aluminum die-cast parts. Among various finishing techniques, painting or spraying is particularly popular due to its ability to provide both functional and aesthetic benefits. By applying a spray coating, manufacturers can protect aluminum parts from environmental damage, improve their appearance, and add specific properties tailored to the needs of different applications. Functions of Spraying on Die-Cast Parts 1.1 Protection One of the primary functions of spraying on
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