Precision casting precision modeling method.

Precision casting is a general term for obtaining precise castings with precise modeling methods.

Precision casting includes: investment casting, ceramic casting, metal casting, pressure casting, lost foam casting.

Among them, investment casting, also known as lost wax casting, is more commonly used: select suitable investment materials (such as paraffin) to make investment; repeat the process of dipping refractory paint and spreading refractory sand on the investment, hardening the shell and drying; Melt the internal investment mold to obtain the cavity; bake the shell to obtain sufficient strength and burn off the remaining investment material; pour the required metal material; solidify and cool, and remove the sand after shelling, so as to obtain high Precision finished product. Heat or cold work and surface treatment as required by the product.