以聚乙烯醇为主要原料,采用化学改性的方法成功制备了A型铸造粘合剂。研究了甲醛、双氧水和交联剂对铸件性能的影响。结果表明,该粘合剂完全能满足铸造生产,其性能优于合脂油,是节能环保型产品。该粘合剂最大特点是能回用旧砂,回用的比例可达50%。 Polyvinyl alcohol as the main raw material, the chemical modification method was successfully prepared A casting adhesive. The effects of formaldehyde, hydrogen peroxide and cross-linking agent on casting performance were studied. The results show that the adhesive can fully meet the casting production, its performance is better than the fat, is energy saving products. The most prominent feature of the adhesive is the ability to reuse old sand, which can be reused up to 50%.