研究了原砂以及高温改性石英砂对酯硬化水玻璃砂性能的影响规律，指出原砂的粒形、耗酸值影响水玻璃型砂的强度和可使用时间。
The paper studied the effects of base sands and calcined sands at high temperature on properties of ester-hardened sodium silicate bonded sands.
笔者介绍了新型酯硬化水玻璃砂的性能特点，就酯硬化改性水玻璃砂常温强度和溃散性的影响因素与改进方法进行了试验研究和探讨。
The property characteristics of new generation of ester-hardened sodium silicate sand was introduced, and the factors influencing the atmospheric temperature strength and collapsibility of.
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