Copper casting methods mainly include the following:
Sand Casting: This is a traditional casting process that uses sand as the modeling material. It is suitable for manufacturing large-scale, complex-shaped copper products, and has the advantages of short production cycle and low cost. The sand casting method can use gravity casting, and under special circumstances, low pressure casting or centrifugal casting can also be used.
Precision casting: This method uses the investment method to inject liquid copper into the plaster mold and solidify it at high temperature to produce copper products with high shape accuracy and good surface finish. Precision casting is suitable for high-precision fields such as automobiles, aviation, and aerospace.
Die-casting method: Injecting liquid copper into a mold under high pressure to solidify and form. It is suitable for mass production of copper products with consistent sizes, such as wire and cable joints, automobile parts, etc.
Continuous casting method: Use cast iron structural steel side plates to assemble rectangular nozzles, and cast them in a steel ladle at one time. It is suitable for the production of high-quality products such as copper pipes, copper rods, and copper coils. It has high production efficiency, less impurities, and smooth surfaces. advantage.
Lost wax method and fan casting method: These two methods are mainly used for bronze casting. The lost wax method is a high-precision casting method, while the Fan casting method uses clay to make a model and shell, and then casts it.
Copper casting equipment includes:
Electric furnace: Use electric heating to heat copper materials above the melting point, suitable for the production of small copper parts.
Furnace: Used for heating with natural gas, coal gas or heavy oil and other fuels, suitable for the production of large copper products.
Heating furnace: Heating copper materials to a specified temperature, suitable for heating and processing of copper products.
In addition, the molds used in sand casting can be wood molds, aluminum alloy molds or resin molds. Sand casting has wide adaptability, but the production efficiency is low, and the dimensional accuracy and surface quality of the castings are relatively low.