在自行研制的气流紧实试验机上,对气流紧实过程进行了研究,特别是采用了加速度传感器,考察了型砂在气流作用下的运动过程、同时就各种工艺参数和结构参数进行了研究,最后在大量实验的基础上建立了描述型砂惯性冲击力的数学物理模型、并与实验结果进行了比较。 In the self-developed air-tightness testing machine, the air-tightness process was studied. In particular, the accelerometer was used to study the movement of the sand under the air flow. At the same time, various process parameters and structural parameters were studied, Finally, on the basis of a large number of experiments, a mathematical and physical model describing the inertial impact of sand was established and compared with the experimental results.