The invention discloses a fired mold shell manufacturing process using a
coating transferring method. The manufacturing process particularly comprises the process steps that a
release agent is pouredon a
cotton gauze, and the
release agent is slightly coated to the surface of a
wax pattern with the
cotton gauze; after the
release agent on the surface of the
wax pattern forms a film, the
wax pattern slowly immerses into transferred
coating,
slow rotation is carried out until a layer of transferred
coating is evenly attached to the surface of the wax pattern, the wax pattern is taken out, and even coating is carried out with a hairbrush;
quartz sand is scattered to the surface of the coated wax pattern, the
quartz sand is scattered to the surface of the wax pattern after the coating does not drop downwards, and then the wax pattern is soaked into a hardening agent to be hardened; after hardening, the wax pattern is taken out to be subject to
air drying, the wax pattern is placed into aboric acid solution to be boiled until the wax pattern in a sand mold shell is completely fused and discharged, the sand mold shell is obtained, then
roasting is carried out, and a sand mold die is obtained. According to the fired mold shell manufacturing process, the
boric acid solution is adopted for boiling and demolding the sand pattern, quick wax dissolving can be achieved, meanwhile, the dissolving capacity of the transferred coating is weak, and coating anti-falling dissolving while demolding can be achieved.