有机酯水玻璃自硬砂工艺，是近些年来发展较快的造型（芯）工艺方法之一。它克服了普通水玻璃砂旧砂溃散性差的缺点，具有生产效率高、污染少、经济效益高等优点。通过对几种造型（芯）工艺在大型铸钢件生产应用的对比后认为，用有机酯水玻璃砂工艺更新改造原造型（芯）工艺，是这类铸造车间技术改造的主导方向。 Organic Ester water glass self-hardening sand process, is the rapid development in recent years modeling (core) one of the methods. The utility model overcomes the defect that the ordinary sodium silicate sand has poor collapsibility, and has the advantages of high production efficiency, less pollution and high economic benefits. After contrasting the production and application of several large-scale steel castings by several modeling (core) processes, it is considered that the transformation of the original molding (core) process with the organic ester sodium silicate sand process is the dominant direction for the technological transformation of such foundry workshops.