摘要
介绍了一种陶瓷泥浆挤出机的设计,装置采用拼接式的连接方式,主体与喷嘴部分使用螺纹连接,通过螺纹预紧力压紧硅胶垫片从而形成封闭管路。挤出机的制造工艺除喷嘴外均采用FDM技术,免去了复杂的加工过程,极大地方便了在现有熔积成型3D打印机的基础上进行陶瓷3D打印机的改装。挤出机在结构设计上考虑到陶瓷浆液的流变特性,采用过渡降压挤压凹模结构,避免产生堵塞和液相分离等现象。挤出机的参数化研究使用SOLIDWORKS Flow Simulation流体仿真软件,分析结果显示陶瓷泥浆在挤出机内部流动良好,无滞留现象,挤出机关键部件受压在许用范围内。
Introduces the design of a ceramic mud extruder. The device adopts splicing connection, and the main body and nozzle are connected by threads. The silicone gasket is compressed by the thread pretightening force to form a closed pipeline. By using FDM technology, the manufacturing process of the extruder eliminates the complicated processing process and greatly facilitates the modification of the ceramic printer on the basis of the existing deposition forming 3D printer, except for the nozzle. Considering the rheological characteristics of ceramic slurry for structural design, and adopting transitional depressurized extrusion die structure, the extruder can avoid blocking and liquid phase separation. By using SOLIDWORKS Flow Simulation fluid simulation software, the movement and internal static pressure distribution inside the extruder are studied. The simulated results indicate that the ceramic slurry flows well inside the extruder without retention and the key components of the extruder are pressed within the allowable range.
作者
丛日原
杜云刚
鲁玥
马昊鹏
CONG Riyuan;DU Yungang;LU Yue;MA Haopeng(School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, Inner Mongolia, China;School of Science, Inner Mongolia University of Technology 010051, Hohhot, Inner Mongolia, China;School of Aeronautics, Inner Mongolia University of Technology, Hohhot 010051, Inner Mongolia, China;Institute of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China)
出处
《中国陶瓷工业》
CAS
2019年第4期13-17,共5页
China Ceramic Industry
基金
内蒙古工业大学科学研究项目(WT201801)
内蒙古自治区高校创新创业教育科学研究课题(2018042)
关键词
3D打印
陶泥挤出机
流体分析
3D printing
ceramic mud extruder
fluid analysis
