Heat resistant aluminum alloy
Heat-resistant aluminum alloys are aluminum alloys that can be used at higher temperatures without softening. The main ways to improve the thermal strength of aluminum alloys are solid solution strengthening, excess phase strengthening and grain boundary strengthening. For this reason, molybdenum, nickel, copper, lithium, iron or rare earth elements are often added to form the excess phase with better thermal stability Al2CuMg, Al6Cu3Ni, Al2FeSi, Al9FeNi, Al2CuLi, Al4Ce4, Al2Cu4Mg5Si4, etc.
According to the processing process, it can be divided into heat-resistant deformed aluminum alloys (including heat-resistant forged aluminum alloys and heat-resistant hard aluminum alloys) and heat-resistant cast aluminum alloys. It is mainly used for parts working at 150～300℃, such as turbine compressor blade disc, welding vessel, piston, etc. The main use can be used on top of overhead transmission and distribution lines, and the continuous use temperature can reach 90 degrees, with high flow-carrying capacity and good anti-corrosion performance.

 


 

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