为改善工人劳动条件,改变干型合箱后用手糊烂泥砂的工序,我们曾采用红砂和白泥粉加水制成糊状泥料,放进挤泥条枪内,以压缩空气为动力,将泥条直接挤到型腔周围分型面上和泥芯出气 In order to improve the working conditions of workers and change the process of hand-drying muddy sand after mixing dry box, we used red clay and white mud powder to add water to make a paste-like mud and put it in the mortar gun to compress the air as the driving force , The mud will be directly extruded into the cavity around the parting surface and mud core vent