| 大型铸钢件用改性呋喃树脂砂的研究 |
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| 引用本文： | 谭锐,张鑫,刘加军,黄旦忠,李汉锟,尹绍奎,李玲.大型铸钢件用改性呋喃树脂砂的研究[J].铸造,2011,60(2). |
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| 作者姓名： | 谭锐 张鑫 刘加军 黄旦忠 李汉锟 尹绍奎 李玲 |
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| 作者单位： | 沈阳铸造研究所,辽宁沈阳,110022 |
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| 基金项目： | 高档数控机床与基础制造装备科技重大专项子课题 |
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| 摘 要： | 在常规呋喃树脂合成工艺基础上,通过加入多酚类有机物改性,开发出一种适用于大型铸钢件造型、制芯用的呋喃树脂粘结剂.其主要特点是:有毒气体释放量小(游离甲醛含量≤0.1%),型芯砂粘结强度高(≥1.6MPa),浇注后退让性好.为了降低固化剂中的含硫量和延长型芯砂可使用时间,对普通磺酸固化剂的成分进行了调整,新固化剂中含硫量比普通固化剂降低20%-50%,而树脂砂的可使用时间可延长到60min.介绍了树脂和固化剂在大型铸钢件上成功应用的情况.
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| 关 键 词： | 大型铸钢件 改性呋喃树脂 低硫固化剂 可使用时间 |
Modified Furan Resin Binder System for Large Steel Castings |
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| TAN Rui,ZHANG Xin,LIU Jia-jun,HUANG Dan-zhong,LI Han-kun,YIN Shao-kui,LI Ling.Modified Furan Resin Binder System for Large Steel Castings[J].Foundry,2011,60(2). |
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| Authors: | TAN Rui ZHANG Xin LIU Jia-jun HUANG Dan-zhong LI Han-kun YIN Shao-kui LI Ling |
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| Affiliation: | TAN Rui,ZHANG Xin,LIU Jia-jun,HUANG Dan-zhong,LI Han-kun,YIN Shao-kui,LI Ling,(Shenyang Research Institute of Foundry,Shenyang 110022,Liaoning,China) |
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| Abstract: | Based on the conventional resin synthesis process,a new furan resin binder system used for moulding or core making of large steel castings was developed by adding polyphenols organic matter.The sand with the new resin binder system is characterized by having small toxic gas release(free formaldehyde is less than 0.1%),high binding strength(more than 1.6 MPa)and good collapsibility after pouring.At the same time,the composition of the conventional sulphonic acid hardener for no-bake furan resin has also been... |
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| Keywords: | large steel castings modified furan resin low sulphur content hardener bench life |
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