水玻璃砂改性溃散剂的研制  

Development of Modified Breakdown Agent of Water Glass Sand

作　　者：祝贞凤[1] 尹红霞[1] 

机构地区：[1]烟台南山学院材料与冶金工程学院,山东龙口265713

出　　处：《铸造技术》2015年第1期175-176,共2页Foundry Technology

摘　　要：选择氧化淀粉液为水玻璃砂改性剂,用氧化淀粉与n粉为水玻璃砂的复合溃散剂。通过对6%水玻璃砂常温抗拉强度及高温残留强度等工艺性进行实验研究,验证了改性方法的有效性,能较好的改善水玻璃砂的溃散性,提高了旧砂的回收利用率。The oxidized starch solution was selected as mo difier of water glass sand, the oxidized starch and n powder were selected as compound disperser of water glass sand. Through experimental study on tensile strength at room temperature and high temperature residual strength of 6% water glass sand, the validity of the modified method was verified, which can better improve the collapsibility of water glass sand and increase the recycling utilization rate of old sand.

关 键 词：水玻璃砂 改性溃散剂 

分 类 号：TG221[金属学及工艺—铸造]