酯硬化水玻璃砂新技术,是21世纪铸造工业向着绿色清洁生产发展的趋势。酯硬化水玻璃砂具有良好的退让性和较好的溃散性,发气量小,具有无毒无味,对环境无污染,从生产成本低、型砂性能、铸造质量及环保等方面综合考虑,应该是当前铸造首选砂种。包 Ester hardening sodium silicate sand new technology, is the 21st century casting industry toward the development of green cleaner production trend. Ester-hardened sodium silicate sand has a good concession and good collapsibility, a small amount of gas, with non-toxic and tasteless, pollution-free environment, from the low production costs, sand performance, casting quality and environmental protection, etc. should be considered The current casting preferred sand species. package