sheet metal pressed parts.Do pre-mold treatment

　　As the name suggests, aluminum alloy die casting is a kind of hardware parts that are cast and molded using aluminum materials in a liquid environment. Due to the soft texture of aluminum, the physical and chemical properties have very good mobility, so the plasticity of aluminum is stronger than that of other metal materials. Therefore, aluminum alloy can make a variety of complex shapes with high precision and finish under gravity die casting machinery, and can significantly reduce the operating processing amount of die casting machinery and the remaining amount of material die casting, greatly reducing labor and material labor costs.

　　Aluminum alloy texture of light gravity plasticity is strong, is widely used in precision processing, electric power construction, building decorative lights of various machine processing industry, aluminum alloy prefabrication directly into the furnace melting, when the temperature reaches 700 ~ 720℃, injection mold through gravity die casting plastic, and then cooling in the air.

　　It is worth saying that before the aluminum alloy re-casting, the mold should be preheated first, if the liquid aluminum alloy is directly injected into the mold, it will affect the service life of the mold, the heat of the aluminum alloy die casting is not uniform, it will affect the die casting, such as bubbles, rough surface and so on, and it can also avoid a lot of trouble. It greatly improves the manual processing time, improves the qualified rate of finished products, reduces the occurrence rate of defective products, and saves the manual material cost and delivery time. Therefore, in the early stage of the production of aluminum alloy die casting, the mold must be pre-heated first.

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