铸造2012，Vol.61Issue(2)：147-151,5.
有机酯-微波复合硬化水玻璃砂强度及抗吸湿性研究
Strength and Humidity Resistance of Sodium Silicate Sand by Ester-Microwave Comoosite Curing
摘要
Abstract
The common sodium silicate sand was cured by microwave heating, the organic ester and the ester-microwave composite process, respectively, and the properties of the sand were analyzed and compared. The results show that compared with the sodium silicate sand cured by microwave heating, the samples cured by ester-microwave composite process could be heated without mold, and when the amount of ester is 1.5% weight of sodium silicate, its 4 h storage strength in the humidistat is increased by 70%; compared with organic ester curing process, the ester-microwave composite curing process has the advantages of shorter heating time, faster curing speed and higher compression strength of the sand. Other factors (the power of microwave and the heating time) influencing the strength of the sodium silicate sand by ester-microwave composite curing were researched. Moreover, SEM was used to investigate and analyze the microstructure of binder bridges and curing mechanism.关键词
水玻璃砂/微波硬化/复合硬化/抗压强度/抗吸湿性Key words
sodium silicate sand/ microwave curing/ composite curing process/ compressive strength/ humidity resistance分类
矿业与冶金引用本文复制引用
李雪洁,樊自田,汪华方..有机酯-微波复合硬化水玻璃砂强度及抗吸湿性研究[J].铸造,2012,61(2):147-151,5.基金项目
国家自然科学基金资助项目(51075163) （51075163）
