新型水玻璃改性剂的研究  

Development Study on the Newtype Modifier of Sodium Silicate

作　　者：张永平[1,2,3] 程宽中[1,2,3] 魏立军 

机构地区：[1]北京科技大学 [2]沈阳工业大学 [3]河北威远公司高压开关厂

出　　处：《铸造技术》1999年第3期34-36,共3页Foundry Technology

摘　　要：在初步试验的基础上，通过混料设计三阶单纯形重心设计的实验法，确定了ＸＹＧ改性剂的最佳配方。这种在混砂时加入的液体水玻璃改性剂，用于ＣＯ２水玻璃砂，型砂的常温强度提高５０％，高温残留强度降低＞５０％。A newtype liquid modifier for sodium silicate was developed in this paper. On the basis of exploration experiments ,then cubic simplicial barycentric method of mixture regression design was used,the ternarycomposition modifier was originally developed. Adding this modifier when mixing sands,it can increase the storage strength after gassing of CO2 sodium silicate bonded sands by 50%,and decrease the residual strength after casting by 50% also.\=

关 键 词：水玻璃 水玻璃改性剂 化学改性 水玻璃砂 

分 类 号：TG221.1[金属学及工艺—铸造] TG222