【摘要】 分析了酯法比ＣＯ２法水玻璃砂强度高的原因，指出充分发挥水玻璃粘结效率的关键在于细化水玻璃凝胶胶位。并介绍了一种提高ＣＯ２水玻璃砂粘强度的简易方法──ＣＯ２／酯法。更多还原

【Abstract】 As the bending strength of sodium silicate sand cured by ester method is much higher than that cured by CO₂ method the analysis shows that the key point is the refinement of grains of silicate gel. A simple method, so called CO₂-ester method, for enhancing the bonding strength of the sand is then introduced in this paper.更多还原