Superthin-wall aluminium-alloy high-speed pressure casting method

Abstract

This present invention relates to a method of high speed die-casting of super thin wall aluminous alloy. It comprises the steps as follow: putting a model in a die-casting machine, setting up the die-casting parameter, keeping the casting pressure at 780kg / cm2, model temperature 250Deg.c, solvent temperature 700Deg.c, then injecting the aluminous alloy into die-casting machine. Shoot up with 0.23m / sec to make cast whose wall thickness is less than 1.0mm, then take the cast out and plastic, smear, detect to satisfy international standard. This cast can be applied mainly in 3C product while the crust of computer, digital camera and mobile telephone.

Description

technical field

[0001] The invention relates to a high-speed die-casting method for an ultra-thin-walled aluminum alloy, in particular to a copper-added aluminum alloy. By setting the parameters of a high-pressure forming machine, a casting with changed original tensile strength can be produced to make it light and thin. , Short advantage. Background technique

[0002] At present, the scope of application of thin-walled products in the industry is mainly the casing of 3C products, such as: notebook computers, digital cameras, mobile phones, and CD players. The main production methods are injection molding, metal die-casting or stamping products. Magnesium alloys are usually used in metal die-casting. However, since the cost of die-casting and surface treatment of magnesium alloys is higher than that of aluminum alloys, the metal texture and characteristics are also inferior. When magnesium alloys are better, aluminum alloys are gradually replacing magnesium alloys in the de...

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