Additive for green molding sand

摘要

Salts of lithium or magnesium and an organic carboxylic acid, especially lithium acetate and/or magnesium acetate, are added to green molding sand to improve the properties of hot green molding sand at 110-160 DEG F (43.3-71.1 DEG C). Magnesium acetate is preferred, especially in green molding sands used for casting steel.