WebThis is achieved by low wetting of the mold by liquid metal. Graphite molds for metal casting cannot be wetted by most molten non-ferrous metals and alloys. Ferroalloys … WebThe gravity casting process consists of the following steps: 1. Mold preparation First, the mold is preheated to around 300-500°F (150-260°C) to allow better metal flow and reduce defects. Then, a release agent (refractory material or ceramic coating) is applied to the mold cavity surfaces to facilitate part removal and increase the mold life. 2.
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