我国铸造用树脂砂工艺的应用现状及展望  

Present Status and Prospect of Resin-Bonded Sand Technology for Casting in China

作　　者：李远才[1] 周建新[2] 殷亚军[2] 万鹏[2] 计效园[2] 沈旭[2] 钱学文 彭昕[2] 祁雨阳 LI Yuan-cai;ZHOU Jian-xin;YIN Ya-jun;WAN Peng;JI Xiao-yuan;SHEN Xu;QIAN Xue-wen;PENG Xin;QI Yu-yang(Huazhong University of Science and Technology,Wuhan 430074,Hubei,China)

机构地区：[1]华中科技大学材料学院,湖北武汉430074 [2]华中科技大学,湖北武汉430074

出　　处：《铸造》2022年第3期251-270,共20页Foundry

摘　　要：树脂砂具有生产适应性强、可显著提高铸件表面质量和尺寸精度、旧砂再生性好等诸多优势,在我国应用广泛。分别对造型用呋喃、碱性酚醛和酚脲烷三种自硬树脂砂和制芯用壳芯(型)、热芯盒和三乙胺冷芯盒三种工艺在我国的发展历程、应用现状及展望作了介绍;对树脂砂工艺在应用中的环保问题,提出了可能的解决途径。指出:在无机粘结剂砂工艺性能达不到现有树脂砂工艺水平的情况下,目前树脂砂工艺的应用格局不会变化;基于节约能源、改善工作条件和提高砂芯精度的角度,树脂砂造型和制芯以冷法为主;将绿色化与数值化、智能化相结合,使树脂砂工艺的应用迈向新台阶。Resin-bonded sand is widely used in China due to its production adaptability,great reclamation rate of used sand,good surface quality and dimensional accuracy of castings.This paper introduced the development history,application status and prospect of the three resin-bonded sand processes in China,including three kinds of no-bake resin-bonded sand(furan,alkaline phenolic and phenol urethane),hot core box and phenolic urethane cold box process.Possible ways were proposed aiming at the environmental problems in the application of the resin-bonded sand.It is pointed out that the application of the current resin-bonded sand technology will not change when the performance of inorganic binder sand cannot reach the level of the resin-bonded sand.Resin sand molding and core making are mainly made by cold method in order to save energy,better working conditions and to improve the accuracy of the sand cores.The combination of green,digitization and intelligentization makes the application of the resin-bonded sand technology to a new level.

关 键 词：树脂砂工艺 环保问题 发展现状 展望 

分 类 号：TG221[金属学及工艺—铸造]