What Unique Physical and Mechanical Properties Do Copper Castings Have?

Copper castings own irreplaceable comprehensive advantages compared with aluminum and iron castings.First,copper ranks among the top common industrial metals in electrical and thermal conductivity,making cast copper the core material for conductive terminals and heat exchange components.Second,most copper alloys form a natural protective oxide film on the surface,bringing stable resistance to atmospheric,fresh water and mild chemical corrosion without complex coating treatment.Third,copper castings have good ductility and friction matching performance;when matched with moving metal parts,they effectively reduce friction loss and operating noise.Besides,cast copper products are easy to machine through turning,drilling and polishing,and maintain stable size accuracy under normal temperature fluctuations.Their overall mechanical strength can be further improved by adjusting alloy proportions and heat treatment processes.