Copper casting has a potential role in the development of modern technology, whether it is spacecraft into space, intelligent robots into the deep sea, whether it is the rapid update of computer equipment or the rapid development of engineering science and technology, are inseparable. Evaluate the use and support of high quality castings. Most cast copper alloys (copper castings) cannot be strengthened by heat treatment but are used for casting. However, some cast copper alloys are used after heat treatment, such as beryllium bronze, chrome bronze, silicon bronze, and some high copper alloys.

Casting copper parts can be alkali chemical deoiling, hot water washing, 25% hydrofluoric acid, water washing, mixed acid corrosion, clean water washing, 5% lye leaching, water washing, pre-plating, copper water washing, silver plating and other casting processes. Wash/passivate/wash/hot water wash/dry/test.

In addition to sand casting, many special casting methods, such as metal casting, centrifugal casting, low pressure casting and graphite casting, are widely used in the casting of copper and other nonferrous alloys.

In copper alloy casting, adopting metal mold casting to accelerate the solidification of alloy plays an important role in improving casting quality and reducing casting defects. In high-lead copper alloys such as lead bronze, metal mold casting can refine grains (especially aluminum bronze and manganese brass), reduce porosity, improve the mechanical properties and air tightness of the alloy (especially important for tin bronze), and use metal mold casting (and water cooling) metals. The mold is cast to prevent segregation of copper components. In copper alloy castings, there are many centrifugal casting methods because of the cylindrical parts (bearing, bushing).