混碾顺序对粘土类型砂性能的影响

Influence of the Mixing Sequences on the Property of Clay Molding Sand

在实验室条件下，研究了三种混碾顺序对粘土砂、粘土煤粉砂性能的影响。并在双目显微镜下，全面观察了不同混碾顺序下，砂粒表面粘土膜包覆状况，依此对实验结果进行了分析。并对实际生产中，粘土类型砂的混制工艺提出了建议。

Under the condition of the laboratory,the authors studied the influence of three mixing sequences on the property of clay and clay coal dust sand and observed the adhersive process of clay coating on the surface of sand under the microscope. According to this, the authors analysed the results of the experiments and the practical mixing techniques of clay molding sand were suggested.