Required blank In the molten iron casting, curing cavity after shelling shell, can obtain precise manufacturing finished. To obtain enough thickness after dry, warm, make interior wax pattern, and melting consistent die-cavity. In the wax models layers of liquid brush high-temperature sand. The method with casting, the original casting wax wax models. It can get relatively accurate shape and high precision casting.Ī common approach is needed to make the blank: firstly, and then using electrodes electrode, corrosion mode formed cavity. Precision casting method is the use of non-metallic mold,and the size of its product is more accuracy than ordinary sand mold casting method.The precision casting includes investment casting,ceramic mold casting,metal casting, pressure casting,and lost foam casting.The precision casting is compared with the traditional casting a foundry method.
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