Quick-hardening core and molding sand composition, and a method for its hardening
作者： Andrzej Heryan , Jur Piszak , Jerzy Sliwa , Jan Harpula , Tadeusz Rzepa
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摘要: A quick-setting core and molding sand comprising quartz sand, a binder an adsorbent or absorbent. The is solution of binding agent such as polystyrene, polyvinyl acetate the like in appropriate organic solvent. After molding, hardened by means blowing it with inert gas, preferably air applying suction thereto. time hardening very short depends upon size mold which being made.
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