在混砂过程中,当型砂的配比确定以后,型砂质量的优劣主要取决于混砂机的各种混砂装置对型砂的作用力,就辗轮式混砂机而言,主要取决于辗轮的辗压力。国内外许多铸造工作者对辗压力曾经进行过深入地探讨,但对辗压力的测试方法却研究得不多。本文所介绍的辗压力测试装置,使辗 In the process of sand mixing, when the proportion of sand is determined later, the quality of the sand depends mainly on the sand mixing device sand mixer on the force of the wheel-type sand mixer, mainly depends on Rolling force of the rolling wheel. Many domestic and foreign foundry workers have conducted in-depth discussion of the rolling force, but the rolling force test method has not been much studied. This article describes the rolling force testing device that enables rolling