Modelling and simulation research of moulding sand-squeezing process with a head with high-speed pneumatic drive

摘要

A mathematical model is presented here, that for the first time fully describes the process of dynamic squeezing of moulding sands. The developed model comprises a system of differential equations that describe the squeezing head dynamics and the process of deformation and compacting of moulding sand. Mathematical modelling of the dynamic squeezing process is based on a rheological model of moulding sand, determined through experimental identifying of sand properties by means of the time characteristics method. The model developed can be used in simulation research to select and optimise parameters of squeezing heads of moulding machines and to optimise the process of dynamic squeezing of moulding sands.