水玻璃砂高温结块的机理探讨  

The Mechanism of Caking of Sodium Silicate Bonded Sand at High Temperature

作　　者：黄永寿[1] 李阁平[1] 王莹[1] 马军 

机构地区：[1]吉林工业大学金属材料工程系

出　　处：《吉林工业大学学报》1993年第4期60-63,共4页

摘　　要：在高温条件下,水玻璃与石英砂牢固地结合在一起,导致铸造过程的落砂困难。本文通过x光衍射和电镜扫描研究了水玻璃砂中水玻璃的结构、形貌及水玻璃与石英砂的相互作用,探讨了水玻璃与石英砂结块的机理。With increasing temperature,water glass and quartz sand will combine firmly to form caking which makes the shakeout process very difficult. In this paper,by applying x-ray diffractometer and acanning electronic microanalyser,structure of water glass and its configuration,and the interaction between water glass and quartz sand are investigated. Finally,the machnism of caking has been discussed.

关 键 词：石英 高温结块 水玻璃砂 铸造 

分 类 号：TG221.1[金属学及工艺—铸造]