摘要
用物理方法 ,分析了水玻璃的模数、浓度和粘度三者的关系对固化的影响 ,比较了水玻璃固化工艺顺序对固化性能的影响。结果表明 ,提升浓度可限制模数值和提升模数可限制浓度。用溶剂溶解力与化学相似性的关系解释了高模数固态与低模数液态水玻璃融合的机理。利用上述分析结果和水玻璃砂使用经验 ,结合各种传统固化方法 ,分析了水玻璃砂回用技术的相关因子和质量控制因子。
It is analyzed and studied by physical method that the relation between modulus, concentration and viscosity of sodium silicate, and its influence on its changeable hardening tendency of sodium silicate. It is compared the influence of the technological operating sequence on the property and hardening characteristics of hardening sodium silicate. The results on sodium silicate show that the modulus value is limited if the concentration is risen first; or the concentration value is limited if the modulus is risen first; so the two factors are exchanged with each other. Finally, the quality control factors related to the technology of sand reclamation are analyzed using above results and the producing experiences of the sodium silicate-bonded sand as well as the traditional methods of hardening sodium silicate. It is explained by the solubility and chemical similarity of the solvent how the solid sodium silicate of the high modulus mixes together with the liquid one of low modulus.
出处
《铸造》
CAS
CSCD
北大核心
2002年第3期173-176,共4页
Foundry
关键词
水玻璃
水玻璃砂
粘度
粘接剂
旧砂再生
模数
化学融合
sodium silicate
sodium silicate-bonded sand
viscosity
binder
sand reclamation
modulus
chemical mixing together
