Casting Production: Process Flow, Equipment, Principle and
Defect name: features: Main causes: Stoma : There are smooth holes of different sizes inside or on the surface of the casting. ① The furnace charge is not dry or contains many oxides and impurities; ② Pouring tools or additives in front of the furnace are not dried; ③ Too much water is contained in the molding sand or too much water is brushed during mold lifting …
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