旋转磁场对水玻璃砂性能影响的研究  

Effect of Rotating Magnetic Field on the Property of Sodium Silicate-bonded Sand

作　　者：潘嘉祺[1] 孙亚琴[1] 陈麒忠[1] 刘卫[1] 

机构地区：[1]上海应用技术学院,上海200233

出　　处：《铸造技术》2009年第2期173-176,共4页Foundry Technology

摘　　要：研究采用旋转磁场对水玻璃进行物理改性的影响。试验表明,所需磁场强度低(0.027 T),改性效果好,使用磁化改性的水玻璃所混制的水玻璃砂强度有明显提高。微观分析表明,经磁化处理的水玻璃,使原来在水玻璃中的纳米颗粒进一步细化,黏度减小。The effect of rotating magnetic field on the modified property of sodium silicate was investigated. The results show that low magnetic field is favorable for the improvement of properties of sodium silicate. The bond strength of magnetic mould sand is increased significantly. After magnetic treatment, the nanometer particles in the sodium silicate become finer, and its viscosity is decreased.

关 键 词：型砂 水玻璃 磁化改性 

分 类 号：TG221[金属学及工艺—铸造]