Copper casting refers to the use of copper alloy as raw material, melted at high temperature and casting molded parts. Copper castings are widely used in aerospace, ships, automobiles, mechanical equipment and other fields, with good electrical conductivity, thermal conductivity, corrosion resistance and mechanical properties.

The production process of copper castings mainly includes the steps of model making, sand mold making, pouring, cooling, removing sand mold and finishing. First of all, according to the shape and requirements of the product to make a good model, and then in the sand box to make a good sand mold, the copper alloy will be heated to the liquid state and then poured into the sand mold, to be cooled after the pouring of copper castings will be taken out, to remove the surface of the sand residue and its finishing.

Copper casting process, pouring is a vital link. In the process of copper pouring, need to control the temperature, pouring speed and pouring pressure to ensure that the copper liquid filled to every detail of the sand mold, to avoid the emergence of porosity and loose phenomenon. At the same time, attention needs to be paid to avoid premature cooling and overheating cooling leading to deformation or cracks in copper castings.

The quality of copper castings is greatly affected by process control, so it needs to be operated in strict accordance with the process requirements in the production process to ensure stable product quality. In addition, the surface quality and dimensional accuracy of copper castings are also issues that need attention, and need to be sandblasted, polished and other surface treatment processes, as well as dimensional testing and correction.

In a word, the process of copper castings needs to comprehensively consider the selection of raw materials, modeling, sand making, pouring, cooling, finishing and other aspects, and ensure that the product quality and performance of the product meets the customer's requirements by strictly controlling each link. In the future development, copper casting process will be more automated and intelligent, improve production efficiency and product quality to meet the growing market demand.