Study on Properties of Silicate Inorganic Resin Sand

Author of the article:HONG Runzhou, ZUO Qiang, FAN Xueyi, ZHOU Yongjiang, ZHANG Zhe, ZHAO Peng, GE Ming

Author's Workplace：Engineering Research Center of Cast Aluminium and Magnesium Alloys ， AECC Beijing Institute of Aeronautical Materials ， Beijing 100095 ， China

Key Words： inorganic resin sand; tensile strength; speed of gas-evolution; amount of gas-evolution

Abstract：The strength and gas-evolution characteristics of a kind of silicate inorganic binder resin sand were studied, and
the optimum proportion of binder was determined by contrast test. The results show that the gas-evolution characteristic
curve of the resin sand is very low and the gas emission velocity is slow, and the amount of binder has little effect on the
gas-evolution and gas-evolution velocity. The gas defects in long and small oil channel can be eliminated by the core made
by this silicon inorganic resin sand can be eliminated.