What are the differences between aluminium and zinc alloys?

What are the differences between aluminium and zinc alloys?

Aluminium alloy is a general term for aluminium-based alloys. The main alloying elements are copper, silicon, magnesium, zinc and manganese, and the secondary alloying elements are nickel, iron, titanium, chromium and lithium. Aluminium alloy has low density, but relatively high strength, close to or more than high-quality steel, good plasticity, can be processed into a variety of profiles, has excellent electrical conductivity, thermal conductivity and corrosion resistance, industry is widely used, the use of second only to steel.

Aluminium alloys are divided into two categories: cast aluminium alloys, which are used in the cast state; and deformed aluminium alloys, which can withstand pressure processing and have higher mechanical properties than the cast state. Aluminium alloys can be processed into various shapes and sizes. It is mainly used in the manufacture of aviation equipment, everyday household items, doors and windows for construction, etc.

Zinc alloy is an alloy made up of zinc and other elements. The commonly added alloying elements are aluminium, copper, magnesium, cadmium, lead and titanium. Zinc alloys have a low melting point, good fluidity, easy welding, brazing and plastic processing, corrosion resistance in the atmosphere, easy recycling and remelting of residual materials; however, the creep strength is low and natural ageing can easily occur causing dimensional changes. Melt preparation, die-casting or pressure processing of the material. The manufacturing process can be divided into cast zinc alloys and deformed zinc alloys.

The main elements added to zinc alloys are aluminium, copper and magnesium. Zinc alloys can be divided into two categories: deformed and cast zinc alloys. Cast zinc alloys have good fluidity and corrosion resistance and are used for die-casting instruments, automotive parts housings, etc.