CAJ | 학술논문

提出了一种新型嵌入式行星螺杆挤出机结构，引入了周期性扰动及排气功能，研制成功1.5代实验样机。对嵌入式行星螺杆内流动与混合开展了数值模拟研究，初步进行了线性低密度聚乙烯填充10% CaCO3挤出样品扫描电子显微镜测试，并与同向双螺杆挤出机挤出样品进行了对比分析。证实了行星螺杆的周期性扰动可以导致混沌混合的发生，有利于螺杆压力的建立、能有效提高物料分散混合效果和提高制品质量。
제출료일충신형감입식행성라간제출궤결구，인입료주기성우동급배기공능，연제성공1.5대실험양궤。대감입식행성라간내류동여혼합개전료수치모의연구，초보진행료선성저밀도취을희전충10% CaCO3제출양품소묘전자현미경측시，병여동향쌍라간제출궤제출양품진행료대비분석。증실료행성라간적주기성우동가이도치혼돈혼합적발생，유리우라간압력적건립、능유효제고물료분산혼합효과화제고제품질량。
A kind of novel geometry of embedded planetary screw extruder was proposed.The periodic perturb was introduced and the degassing function was added in,and then 1.5 generation of the experimental prototype extruder was developed successfully. The numerical simulation of the flow and mixing in such machine was carried out.The primary experimental investigation was conducted to characterize the mixing effect of sample of polyethylene,linear low density filled with 10% CaCO3,and comparison was made with the sample extruded by co-rotating twin screw extruder on the condition of the same output.The results confirm that the periodic disturbances derived from the planetary screws can lead to chaotic mixing.This is beneficial to the establishment of the more steady screw pressure,and can effectively improve the material dispersion mixing effect and the quality of the product.