What physical and mechanical advantages do copper castings possess?

Copper castings have irreplaceable comprehensive material performance compared with iron,aluminum and other cast metals.First,copper owns top-tier thermal and electrical conductivity among common industrial metals,so copper castings become core raw materials for conductive terminals,heat exchange shells and heat conduction accessories.Second,most copper alloys form stable passive oxide films on the surface naturally,bringing strong resistance to atmospheric,freshwater and mild chemical medium corrosion without complicated protective coating.Third,cast copper alloys have good ductility and bearing capacity,with excellent friction matching performance when paired with metal moving parts,reducing wear and operation noise during mechanical movement.Meanwhile,copper castings have strong plasticity for post machining,easy drilling,turning and polishing processing,and maintain stable dimensional accuracy under normal working temperature fluctuations.Their main mechanical strength can be further optimized by alloy proportion adjustment and heat treatment.