树脂和固化剂含量对自硬呋喃树脂砂抗拉强度的影响  

Effects of Furan Resin and Hardener Contents on Tensile Strength of No-Bake Furan Resin Sand

作　　者：张集滕 李瑞 

机构地区：[1]上海烟草机械新场铸造有限责任公司,上海201314

出　　处：《铸造》2012年第11期1361-1362,共2页Foundry

摘　　要：研究了自硬呋喃树脂和磺酸固化剂的不同加入量对树脂砂抗拉强度的影响。结果表明:随着树脂加入量的增加,树脂砂的初始强度(1 h)、中间强度(8 h)和终强度(24 h)都呈现先增后减再增的趋势,当树脂加入量为1.6%时,型砂的抗拉强度最高;随着固化剂加入量的增加,型砂的抗拉强度呈现先增后减的趋势,当固化剂含量为树脂含量的50%时,型砂抗拉强度出现峰值。The effects of the additions of the no-bake furan resin and sulphonic acid hardener on the tensile strength of resin sand were studied. The results show that with the increasing of the addition of the resin, the tensile strength including the initial strength （1 h） , middle strength （8 h） and final strength （24 h） all first increases, then decreases, and again increases, the tensile strength reaches the highest value when the furan resin content is 1.6%; the tensile strength first increases, then decreases with the increasing of the hardener content, when the hardener content is 50wt.% of the resin, the tensile strength is the highest.

关 键 词：自硬呋喃树脂 磺酸固化剂 抗拉强度 

分 类 号：TG221.1[金属学及工艺—铸造]