3D喷墨打印砂型/芯用双组分热硬化无机粉末粘结剂材料的研究  

Research of Two-Component Thermal Hardening Inorganic Powder Binder for 3D Inkjet-Printed Sand Molds/Cores

作　　者：邢金龙 张宏凯 张茜 XING Jin-long;ZHANG Hong-kai;ZHANG Qian(Ningxia Kocel Chem icals Co.,Ltd.,Yinchuan 750021,Ningxia,China)

机构地区：[1]宁夏共享化工有限公司

出　　处：《铸造》2019年第12期1394-1398,共5页Foundry

摘　　要：开发了一种3D喷墨打印铸造砂型(芯)用双组分热硬化无机粉末粘结剂材料,探究了组分A的粘度及表面张力对喷墨状态的影响,同时探究了该双组分热硬化无机粉末粘结剂材料在打印生产过程中的砂型强度、发气量、打印头的损伤情况以及VOC排放量控制等方面的表现。结果表明,该材料打印生产的砂型强度满足要求,发气量较低,打印生产时VOC排放量低,对打印头的损伤较小。A two-component thermal hardening inorganic powder binder for three dimensional inkjet-printed sand molds and cores was developed, and the influence of the viscosity and surface tension of component A on the inkjet state was investigated. At the same time, the sand strength, gas evolution volume, frame loss rate of print head and VOC emissions of the two-component thermal hardening inorganic powder binder in the printing process were explored. The results show that this two-component thermal hardening inorganic binder has low gas evolution volume, low VOC emissions and low damage to print head in the printing process, and the obtained sand strength can meet the requirements of the production.

关 键 词：3D喷墨打印 无机粉末粘结剂 双组分 热硬化 铸造砂型(芯) 

分 类 号：TG222[金属学及工艺—铸造]