新型呋喃树脂和固化剂及其应用.pdfVIP

维普资讯 学兔兔 铸 造 Jun．2008 · 620· FOUNDRY VO1．57 NO 6 新型呋喃树脂和固化剂及其应用 蔡义军，马荣华，肖 毅，江国栋，王晓峰，胡明通 (德阳市东汽树脂有限公司，四川德阳618201) 摘要：针对现有呋喃树脂及磺酸固化剂在生产重、大型铸钢件时遇到的问题，-g了一种新型呋喃树脂和新型固化剂 的性能，其使用方法和传统呋哺树脂和磺酸固化剂完全相同。但该体系具有高的砂温适应性、工艺性能好、环保、铸 件质量好、铸件生产综合成本低。能够很好地满足重、大型铸钢件铸造生产的需求。 关键词：铸钢；新呋喃树脂；新固化剂；超长可使用时间；铸件渗硫裂纹 中图分类号：TG221 ．1 文献标识码：A 文章编号：1O014977(2008)06-0620-03 Application of New Type Furan Resin and Curing Agent CAI Yi-jun，MA Rong—hua，XIAO Yi，JIANG Guo—dong，WANG Xiao—feng，HU Ming—tong (Deyang Dongqi Resin Co．，Ltd，Deyang 61 8201，Sichuan，China) Abstract：To solve the problems existing in the production of the large heavy steel castings by conventional self-hardening furan resin，a new type furan resin and curing agent were developed The result of application showed that the usage of the ReW type furan resin and curing agent are completely as same as conventional furan resin and curing agent of sulfonic acid，and the new binding and curing system has many advantages such as good sand temperature adaptability，good processing property，friendly environment；the castings with better quality can be obtained in ower comprehensive costs．It satisfies well the production requirement of the large heavy steel casting Key wordS： cast steel；new type furan resin；new type curing agent；super long bench life； sulfurizing crack 与水玻璃砂、湿型砂工艺相比，呋喃树脂自硬砂 呋喃树脂 (下文称超级呋喃树脂)和配套使用的新固 工艺具有很多的优点：①能明显减轻劳动强度、节能、 化剂 (下文称超级固化剂)，经严格的检测与生产验 旧砂溃散性好、再生率高、改善劳动作业环境；②能 证，新型呋喃树脂及其配套的新型固化剂避免了以上 够明显