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What is the classification and function of aluminium bronze


Aluminum bronze usually contains no more than 11.5% aluminium, sometimes it also participates in excessive iron, nickel, manganese and other elements to further improve its function. Aluminum bronze can be strengthened by heat treatment. Its strength is higher than tin bronze and its low temperature oxidation resistance is better. The classification and function of aluminium bronze will be introduced.

Classification and Functional Classification of Aluminum Bronze

Aluminum bronze can be divided into two categories: complex aluminium bronze and complex aluminium bronze; complex aluminium bronze refers to copper-aluminium binary alloys containing only aluminium; complex aluminium bronze refers to multi-element alloys containing iron, nickel, manganese and silicon in addition to aluminium. Aluminum bronze for processing copper and copper alloys in China's National Standards has nine combined numbers: QAl5, QAl7, QAl9-2, QAl9-4, QAl9-5-1-1, QAl10-3-1.5, QAl10-4, QAl10-5 and QAl11-6. There are 26 combined numbers for processing aluminium bronze and 18 cast alloys in the American ASTM Standards. The basic alloys of aluminium bronze are Cu-Al, Cu-Al-Fe, Cu-Al-Ni, Cu-Al-Fe-Ni, and Cu-Al-Fe-Ni-Mn.

Classification and Function of Aluminum Bronze

1. Aluminum bronze has high strength, shadow and wear resistance, and is often used to make gear blanks, threads and other parts.

2. Aluminum bronze has good corrosion resistance, so it can be used to manufacture corrosion-resistant parts, such as propellers, valves, etc.

3. Aluminum bronze will not spark under impact. It can be used to manufacture spark-free tool data.

4. It has thermal conductivity and fluctuating stiffness, which is used as abrasive material in drawing and rolling stainless steel plate heat exchange abrasive equipment.

5. Aluminum bronze has an invisible shape memory effect, which was once lost as shape memory alloy.

6. Aluminum bronze alloys are cheap and become local substitutes for some precious metal materials, such as tin bronze, stainless steel and nickel-based alloys.