Aluminum alloy capable of being subjected to pressure casting and anodizing

Abstract

The invention discloses an aluminum alloy capable of being subjected to pressure casting and anodizing. The mass ratio formula of the aluminum alloy is ZnMgMn<c>M<d>Al<e>, wherein M is one or more of Cr, Zr, Cu, Ti, rare earth elements, V, Co, Ni, Sn, Nb, Mo, Fe, Si, B, In, Ca and Be, a is not smaller than 0.1% but not larger than 20%, b is not smaller than 0% but not larger than 4%, c is not smaller than 0.1% but not larger than 4%, d is not smaller than 0% but not larger than 5%, and the balance e. The aluminum alloy capable of being subjected to pressure casting and anodizing is good in fluidity and pressure casting performance and can be easily machined in the later period; a semi-finished product obtained after pressure casting can be subjected to anodizing and colored with various colors, and the aluminum alloy is a high-quality aluminum alloy applied to products with high appearance requirements. By adjusting the ratio, it is guaranteed that while the alloy can be subjected to anodizing, comprehensive performance of the alloy can meet the pressure casting technique, and thin-wall products can be produced.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a die-castable and anodizable aluminum alloy. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry. It has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. With the rapid development of industrial economy, the demand for aluminum alloy welded structural parts is increasing The increase in the weldability of aluminum alloys has also deepened. At present, aluminum alloys are the most widely used alloys. The main alloying elements are copper, silicon, magnesium, zinc, manganese, and the secondary alloying elements are nickel, iron, titanium, chromium, lithium, etc. [0003] Aluminum alloys are widely used in the structures and casings of communications, lighting, 3C products, home appliances, auto parts and other products. The existing products are mainl...

AI Technical Summary

Problems solved by technology

Al-Si series alloys have good fluidity and high strength, and are maturely used in die-casting processes, but Al-Si series alloys have poor anodic oxidation treatment effects, uneven coloring, and large color differences. Al-Mg series alloys have poor flow properties, Poor processing performance when used in die-casting process, especially not suitable for medium and thin-walled products

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