The difference between aluminum alloy and zinc alloy in door handles


Aluminum alloy is the general term for aluminum-based a […]

Aluminum alloy is the general term for aluminum-based alloys. The main alloying elements are copper, silicon, magnesium, zinc, and manganese, and the secondary alloying elements are nickel, iron, titanium, chromium, lithium and so on. Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and it is widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industries.

Zinc alloy is an alloy composed of zinc based on adding other elements. Commonly added alloying elements include low-temperature zinc alloys such as aluminum, copper, magnesium, cadmium, lead, and titanium. Zinc alloy has a low melting point, good fluidity, easy to weld, braze, and plastic processing, corrosion resistance in the atmosphere, and easy recycling and remelting of residual waste; but its creep strength is low, and it is prone to dimensional changes caused by natural aging. Zinc alloy is prepared by melting method, die-casting or pressure processing into material. According to the manufacturing process, it can be divided into cast zinc alloy and wrought zinc alloy. It can be used for die-casting instrument, auto parts shell electric pole surface galvanized anti-corrosion, boiler water wall pipe hot dip galvanizing treatment to improve high temperature corrosion resistance, etc.

The difference in die casting process of aluminum alloy and zinc alloy is as follows:
1. The melting temperature of the two alloys is different when processing the two alloys. The temperature of zinc alloy is more than 400 degrees, and that of aluminum alloy is more than 700 degrees.
2. The processing equipment is different, although they are all called die-casting machines, they are not universal at all.
3. The processing technology and parameters are different.

The difference between the mechanical properties of aluminum alloy and zinc alloy:
Zinc alloy hardness 65-140, tensile strength 260-440
Aluminum alloy hardness 45-90, tensile strength 120-290
The overall zinc alloy has higher hardness and higher tensile strength than aluminum alloy.

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