聚合物熔体二维非等温脉动流场模型  

Models of 2D Non-isothermal Pulsating Flow of Polymer Melt

作　　者：陈学锋[1] 徐言生[1] 胡建国[1] 许中明[1] 殷小春[2] 

机构地区：[1]顺德职业技术学院机电工程学院,广东顺德528300 [2]华南理工大学聚合物新型成型装备国家工程研究中心/聚合物成型加工工程教育部重点实验室(华南理工大学),广东广州510640

出　　处：《塑料》2015年第2期85-88,共4页Plastics

基　　金：广东省自然科学基金(S2012010010199);(华南理工大学)聚合物成型加工工程教育部重点实验室开放课题基金(2012001);顺德区容桂科技计划(RGKJJH2013008)

摘　　要：基于螺杆轴向振动,建立单螺杆挤出机计量段熔体流动模型,推导聚合物熔体二维非等温幂率本构方程,计算螺杆径向熔体温度分布和沿螺槽方向熔体速度,结果表明:在螺杆计量段,熔体沿螺杆径向分布存在一定温度差且为非线性,熔体温差的存在会对熔体流场产生影响。Based on axial vibration of screw,the melt flow model of the metering section of single screw extrusion machine was established. The polymer melt two dimensional non-isothermal power-law constitutive equation was derived. Melt temperature distribution along the radial direction of the screw and the screw groove of the melt speed was calculated. The results showed that melt temperature along the radial temperature was difference in the metering section of screw, which would have an influence on the melt flow field.

关 键 词：螺杆 振动 挤出 温度 速度 

分 类 号：TQ320.663[化学工程—合成树脂塑料工业]