摘要
分析了φ150mm分离型螺杆挤压机在使用各种不同原料的聚酯切片时所反映出的不同操作性能。结合固体输送、熔融与挤出理论,对纺丝发生整机断头的原因和机理进行了探讨,得出了纺丝整机断头是由该螺杆与100粒切片重大于3.8g的大颗粒切片不相适的结论。建议使用大颗粒切片纺丝时,应更换不同结构参数的螺杆,新的螺杆要求适当增大进料段和压缩段的槽深。
The phenomena of different operation performances appeared as feeding diffe-rent PET chips through the φ150mm double flight screw is analysed. The cause andmechanism of breakage simultaneously in the whole spin line are also investigated,on the basis of chips conveying, melting and extruding theory. The result showsthat the problem is caused by unadaptability of the screw to big chips of which100-granules-weight exceeds 3.8 gram. It is suggested that a screw with differentstructure parameter should be applied when using big chips. The groove depth forfeed section and compression section should be properly increased.
出处
《合成纤维工业》
CAS
CSCD
1992年第2期14-17,共4页
China Synthetic Fiber Industry
