我们车间打制浇口杯用的水玻璃砂,粘度大,流动性差,易自然硬化。以往储砂是用钢板焊接制成整体的锥形砂斗,尽管砂斗做得很陡直,砂子还是不易下来。操作时总出现斗壁粘砂、挂砂、搭棚等现象,甚至有时整斗砂只打几个浇口杯就报废。虽然也用人工捣及热水 Our workshop to create gate glass with water glass sand, viscosity, poor mobility, easy to natural hardening. In the past, sand storage was welded with a cone made of steel. Although the sand was very steep, the sand was not easy to come by. Always appear when fighting wall sticky sand, hanging sand, scaffolding and other phenomena, and sometimes even the entire bucket of sand hit a few sprue cups scrapped. Although also manually pound hot water