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本文是根据我厂多年来的生产实践经验,通过实验室大量的试验数据,编集而成的。根据试验结果,我厂提出了对原砂在粒度分布、微粉童、粘土量、含水量、碱度、化学成分、颗粒形状等几个方面的具体技术要求。本文列举了我厂所选用的江西永修砂、江苏宜兴渚东硅砂和大林标准砂、江西都昌砂、福建砂、广州砂、湘潭砂、湖州砂各项性能指标的比较,还和日本石见5号硅砂进行了对比。另外,还介绍了锆砂呋喃砂的试验和应用情况。本文对原砂的性状,影响冷硬呋喃砂强度在理论上也进行了分析。
This article is based on our plant over the years of production experience, through a large number of laboratory test data, compiled from. According to the test results, our factory put forward the specific technical requirements for the original sand in terms of particle size distribution, powder powder, clay content, water content, alkalinity, chemical composition, particle shape and so on. This paper lists the comparison of the performance indexes of Jiangxi Yongxiu sand, Jiangxi Yixingzhu Silicone and Dalin standard sand, Jiangxi Duchang sand, Fujian sand, Guangzhou sand, Xiangtan sand and Huzhou sand, No. 5 silica sand compared. In addition, the experiment and application of zircon sand fumed sand are also introduced. In this paper, the characteristics of the original sand, affecting the strength of the cold furan sand in theory also conducted an analysis.