It is essential to understand the extent of partial filling of the flight screw, the degree of fill, which is an operational variable of the twin‐screw extruder (TSE). This article reports the first attempt to measure, in situ, the degree of fill in a rotating full‐flight screw using a specialized light‐section method for a TSE. The thickness of the resin sticking to the pushing side decreased with increasing rotational speed. The degree of fill is inversely proportional to the rotational speed and proportional to the feed rate. This result agreed well with the results suggested by the conventional analysis of flow in the TSEs. The fast Fourier transformation of the degree of fill time series indicated that the period of fluctuation correlated with the screw speed rather than the feed rate or throughput. © 2018 American Institute of Chemical Engineers AIChE J, 65: 326–333, 2019

中文翻译：

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在线监测同向双螺杆挤出机的旋转全向螺杆的填充度

必须了解螺旋螺杆的部分填充程度，填充程度，这是双螺杆挤出机（TSE）的操作变量。本文报告了首次现场测量的尝试，使用TSE的专用光截面方法填充旋转的全螺纹螺钉的程度。随着旋转速度的增加，粘附到推动侧的树脂的厚度减小。填充度与旋转速度成反比，与进给速度成正比。该结果与TSE流动的常规分析所建议的结果非常吻合。填充时间序列的程度的快速傅立叶变换表明，波动时间与螺杆速度而不是进给速度或产量相关。©2018美国化学工程师学会AIChE J，65：326–333，2019