提高铸造用酚醛树脂粘结效率的研究  

Study on the Bonding Efficiency of Phenolic Resin Used in Cast

作　　者：刘向东[1,2] 肖柯则[1,2] 王文清 戴绪绮[1,2] 李远才[1,2] 

机构地区：[1]内蒙古工业大学 [2]华中理工大学

出　　处：《粘接》1999年第4期5-9,共5页Adhesion

摘　　要：为提高酚醛树脂的粘结效率，通过对特种原砂进行表面处理，研究了表面处理工艺对覆膜特种砂性能的影响。结果表明：对原砂进行水洗、酸洗和偶联剂处理，可使覆膜砂的热拉伸强度提高１．４５～２．４５倍。由于树脂加入量减少。Through the surface treatment of raw silica sand , the effect of surface treatment on the bonding strength of precoated silica sand was investigated . The result show that ,because of water wash , acid wash & treatment with coupling agint, the Hot tensile strength of precoated silica sand was increased by 1.452.45 times . For reduce of the resin amount , the gas evolution cut down.

关 键 词：粘结效率 原砂 铸造 酚醛树脂 芯砂 粘结材料 

分 类 号：TQ433.431[化学工程]