Dongguan Precision CastingIt is to obtain precise size castings. Compared with the traditional sand casting process, precision casting can obtain more precise dimensions and better surface quality. There are investment casting, ceramic casting, metal casting, pressure casting and lost foam casting.
Precision casting is also called wax-free casting. Its products are precise and complex, close to the final shape of the part, and can be used directly without processing or with little processing. This is an advanced process with near net shape.
There are investment casting, ceramic casting, metal casting, pressure casting and lost foam casting.
Dongguan precision casting is often used in investment casting, also known as wax-free casting: use suitable investment materials (such as paraffin) to make investment molds; repeatedly impregnate refractory coatings and sprinkle refractory sand on the investment mold to harden the shell and make it Drying; lining the investment mold to form a cavity; baking the shell to make it strong enough and burning off the remaining embedding materials; pouring the required metal materials; solidifying and cooling, removing the shell and cleaning the sand, and finally forming. Heat treatment, cold working and surface treatment are carried out according to product requirements.