对影响型砂强度和韧度的因素进行了分析，并提出改进方向。
The factors influencing the strength and toughness of the molding sand were analyzed, and the direction of their improvement was also pointed o...
分析了覆膜砂在热作用下对型砂强度、断裂表面和变形的影响。
Effects of heat performance on strength? Fractures and bending of coat sand were analyzed.
树脂砂铸造中，增强树脂硅砂的粘合性，提高型砂强度及抗湿性。
When used in the sand casting of resin, it can strengthen the adhesion, improve profile sand strength and antiwetting property.
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