Precision casting refers to the general term for obtaining precise size castings. Compared with the traditional sand casting process, the casting size obtained by precision casting is more accurate and the surface finish is better. It includes investment casting, ceramic mold casting, metal mold casting, pressure casting and lost foam casting.
Precision casting is also called lost wax casting. Its products are precise, complex, close to the final shape of the part, and can be used directly without processing or a little processing. It is an advanced near net shape technology.
It includes investment casting, ceramic mold casting, metal mold casting, pressure casting and lost foam casting.
One of the most commonly used is investment casting, also known as lost wax casting: use a suitable investment material (such as paraffin) to make an investment; repeat the steps of dipping refractory paint and sprinkling refractory sand on the investment, hardening the shell and drying; melting the inner Investment mold to obtain a mold cavity; baking the shell to obtain sufficient strength and burning off the remaining embedding material; pouring the required metal materials; solidification and cooling, shelling and sand cleaning, so as to obtain high-precision finished products. Carry out heat treatment, cold working and surface treatment according to product requirements.
The above is a detailed description of precision casting. If you need, you can call us for advice.