论文部分内容阅读
吹塑薄膜加工时产生折皱的最大原因是膜泡在风环和最大直径间的不稳定性。在这区间如果与正圆位置略有偏移,人字板处膜泡圆周上的点以及牵引辊处相应点在长度上会产生很大的差异。这些不同长度差异在膜泡压扁过程中造成紧带和松带,其中松带会产生折皱。
Blown film processing wrinkle caused the biggest reason is the bubble in the air ring and the maximum diameter of the instability. In this interval, if there is a slight deviation from the perfect circle, the points on the bubble circle at the gilts and the corresponding points at the traction roll will make a big difference in length. These differences in length create tightness and looseness during the collapse of the bubble, with the looseness creating wrinkles.