摘要
随着树脂砂造型的应用与推广，树脂砂旧砂的再生已引起铸造工作者的重视。在考虑提高旧砂再生效率时，不仅仅要提高旧砂再生设备的再生强度，而且要从提高铁砂比、采用质量好品位高的原材料、合理的落砂时间及再生工艺流程等工艺方面改进，往往会产生令人满意的效果。
oundrymen have attach great importance to resin bonded sand moulding.When the increasing sand reclamation efficency is considered,it not only enhance reclamation strength of sand reclamation equipments but also improve the techniques such as raising iron-sand ratio,using good quality and high grade raw material , reasonable shakeout time and technological process ofreclamation ,thereby the satisfactory results might be achieved.
