The traditional food swell extrudingscrew machining method can not be satisfying because of its machining quality and efficiency.
传统的膨化挤出螺杆加工方法，其加工质量、加工效率等均不能令人满意。
2
The research results provide basis for further study on screw design optimization and stimulation of extruding experiments.
该研究结果为进一步进行螺杆的优化设计以及挤压膨化的模拟试验奠定了基础。
3
Reasonable gas feeding conditions are discussed in the continuous extruding process of foamed plastics. The influence of different posit, nozzle construction, rotational speed of screw, etc.