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本文介绍了利用石灰石旧砂作为主要原料,烧制硅酸盐水泥的研制成果。为提高铸件质量,降低铸件成本,为石灰石砂的进一步推广应用和旧砂的综合利用开辟了新途径。
This article describes the use of limestone as the main raw material of sand, fired Portland cement research results. In order to improve the quality of castings and reduce the cost of castings, it opens up new ways for the further popularization and application of limestone sand and the comprehensive utilization of old sand.