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Uneven film transverse thickness

点击次数:   更新时间:15/11/18 14:03:11     来源:关闭分    享:

The root cause of uneven film transverse thickness is the amount of out-feed materials is uneven.The solutions as follows:

1.The adjustment of die lip space is unsuitable, to local adjustment or restructuring its entire .

2.There’s debris in die cavity, causing the materials disorder, discharge uneven,dies should be regularly cleaned .

3.The pressure or temperature of the melt is too high or fluctuating too much, causing extrusion melt flow instability, to influence the film uneven thickness, we can improve this problem by adjusting the  temperature and extrusion speed.

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