大型铸钢件3D砂型打印用原砂研究及应用  

Research and Application of Raw Sand in 3D Sand Printing for Large Steel Castings

作　　者：苏志东 冯周荣 李彩虹 赵建东 SU Zhi-dong;FENG Zhou-rong;LI Cai-hong;ZHAO Jian-dong(Kocel Steel Foundry Co.,Ltd.,Yinchuan 750021,Ningxia,China)

机构地区：[1]共享铸钢有限公司,宁夏银川750021

出　　处：《铸造》2021年第10期1178-1182,共5页Foundry

摘　　要：研究了大型铸钢件用不同类型原砂、粘结剂对3D砂型打印砂芯质量的影响和不同型砂及粘结剂的砂型在锆英粉涂料保护下对铸件表面质量的影响。同时还通过MAGMA模拟软件分析了不同型砂对于铸件冒口收缩形态的影响,并综合原砂成本等因素给出了大型铸钢件使用3D砂型打印技术的原砂选择试验路线及选择依据,为大型铸钢件应用3D砂型打印技术奠定了型砂方面的研究基础。In this paper,the influence of different types of raw sand and binders on the quality of 3D sand printed cores for large steel castings,and the influence of sand molds prepared with different types of raw sand and binders and coated with zircon powder coating on the surface quality of castings were studied.Meanwhile,with the simulation software of MAGMA,the influence of molding sand on the shrinkage of casting risers was analyzed,and based on the comprehensive considerations of the cost and casting quality,the experiment schemes and selection criteria of raw sand for 3D sand printing to produce large steel castings were proposed.This paper laid a foundation for basic research of molding sand used in 3D sand printing technology for large steel castings.

关 键 词：大型铸钢件 3D打印 硅砂 陶粒砂 呋喃树脂 酚醛树脂 

分 类 号：TG221[金属学及工艺—铸造]