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Causes and countermeasures of blistering defects on the surface of cast iron parts produced by lost foam
Causes Mold aspect: the gas emission of the mold material is too large, and a large amount of gas is released during pouring. If there is no time to discharge, bubbles will form on the surface of the casting. Uneven density of the mold and poor local gas discharge will also cause bubbles. Coating aspect: […]