本文介绍了水玻璃有机酯自硬砂的试验研究结果。试验表明,水玻璃有机酯自硬砂具有较好的工艺性能,可以满足中、小型铸钢件制作型、芯的要求,并在室温下可自行硬化,不需人工干燥,与CO_2硬化的水玻璃砂及树脂砂相比,其优越性更明显。 This paper introduces the experimental results of water glass organic ester self-hardening sand. The test shows that the water glass organic ester self-hardening sand has good process performance, can meet the production requirements of small and medium-sized steel castings and cores, and can self-harden at room temperature without manual drying, and CO 2 hardened water Glass sand and resin sand compared to its more obvious advantages.