中文摘要：

在熔体为等温不可压缩的均匀定常流且充满螺槽的前提下讨论不可压缩Carreau型非牛顿流体在单螺杆挤出机计量段的定常流动问题,分析了其相应数学模型的解的结构,为进一步的数值计算奠定了基础。

英文摘要：

The boundary problem of stationary flow for incompressible non-Newtonian fluids in the metering section of a single screw extruder has been investigated. With the assumption of slow flow and without neglect of convec- tion, the analysis of the solution structure and the uniqueness of the corresponding mathematical model provide the basis for further numerical calculations.