The equipment adopts gas heating, with controllable heating rate and uniform furnace temperature field, which can stably maintain the high temperature required for roasting; Full combustion, low energy consumption, and economical operating costs. The furnace body has excellent insulation structure, minimal heat loss, flexible temperature adjustment, and can match the firing curve of different material molds. The automated temperature control system can accurately set the heating and insulation process, ensuring stable quality of mold shell baking and reducing waste rate.