铸造用自硬环氧树脂砂粘结性能的研究  

Study on the bonding properties of no-bake epoxy resin sand for foundry

作　　者：刘向东[1] 肖柯则[1] 王文清[2] 戴绪绮[2] 

机构地区：[1]内蒙古工业大学,呼和浩特市010062 [2]华中理工大学,武汉市430074

出　　处：《粘接》2000年第2期10-12,共3页Adhesion

摘　　要：采用聚酰胺作为环氧树脂固化剂 ,研究了树脂、固化剂加入量对型芯砂强度的影响 ,并测定了环氧树脂砂的硬化曲线 ,根据该曲线确定出其可使用时间和可脱模时间。结果表明 :自硬环氧树脂砂具有较高的强度 ,适宜的可使用时间及可脱模时间 。Taking polyamide resin as the curing agent, the bonding strength of no bake epoxy resin sands for foundry and the influence of amount of resin and curing agent on its properties are investigated in the present work.The working time and stripping time are obtained from the hardening curve.The results show that the no bake epoxy resin sand with high strength and satisfactory working time and stripping time can serve for molding and core making in foundry.

关 键 词：环氧树脂 自硬砂 粘结 强度 铸造 胶粘剂 型砂 

分 类 号：TG221.1[金属学及工艺—铸造] TQ433.437[化学工程]