脂硬化水玻璃砂应用工艺试验

Technological test for application of grease hardening water-glass sand

由于脂硬化水玻璃砂硬化速度及强度等指标对环境温度敏感,在生产过程中,需要根据环境条件及时调整固化剂配比,本文通过工艺试验,分析了在0～10℃、11～20℃、21～30℃和30～40℃环境条件下脂硬化水玻璃砂的工艺配比与可使用时间、硬化时间、抗拉强度的关系,得出在上述温度环境下的固化剂配比。

Since the rate of hardening,intensity and other indexes of the grease hardening sodiam silicate sand are sensitive to ambient temperature,the curing agent proportioning needs to be adjusted in time according to the ambient condition of production process.The variation of the curing agent proportioning for grease hardening sodiam silicate sand with pot life,hardening time and tensile strength at 0~10℃,11~20℃,21~30℃ and 30~40℃ are analyzed by the aid of technological test.The curing agent proportioning at the above temperatures was obtained.