连续螺旋绞刀参数对挤出过程中泥料特性的影响  

EFFECT OF CONTINUOUS SCREW REAMER PARAMETERS ON PUG CHARACTERISTICS OF EXTRUSION PROCESS

作　　者：张柏清[1] 赵先强[1] 李全勇[2] 杨玲琳[2] 

机构地区：[1]景德镇陶瓷学院机电学院,景德镇333001 [2]中国直升机设计研究所,景德镇333001

出　　处：《陶瓷学报》2009年第1期14-19,共6页Journal of Ceramics

基　　金：国家自然基金资助项目(编号:50765002/E051304);国家科技支持计划项目(编号:2006BAF02A28)

摘　　要：以TL-125B型真空练泥机连续螺旋绞刀部件为研究对象,运用ANSYS软件建立了泥料在连续螺旋绞刀中挤出的几何模型,用实测的泥料流变参数及螺槽进出口压力进行定义和加载,对挤出过程中泥料的速度场、压力场进行模拟,对影响挤出过程中坯体质量的连续螺旋绞刀工况和结构参数进行了研究。利用数值模拟结合正交试验法对轴毂半径、连续螺旋绞刀的螺距、转速、刀片厚度进行了优化设计,得出了泥料在挤出过程中速度、压力分布情况,以及真空练泥机在不同的连续螺旋绞刀结构参数下对泥料的生产能力、质量的影响。An ANSYS-based geometric paste extrusion model for the continuous screw reamer of the de-airing pug mill Model TL-125B was established. Correct boundary conditions were loaded, the velocity and the pressure field of ceramic paste in the channel simulated and conditions and structural parameters affecting the quality of the extruded paste studied. Optimization of screw root radius, screw pitch, screw rotate speeds and screw blade thickness was achieved by numerical simulation and orthogonal tests, and also observed were distribution of velocity and pressure for paste extrusion and influence of structural parameters of the continuous screw reamer on production capacitv and quality of ceramic paste.

关 键 词：真空练泥机 数值模拟 螺旋绞刀 正交试验法 

分 类 号：TQ174.5[化学工程—陶瓷工业]