The grooving in the feedzone on the barrel had a good result for blown film.
机筒进料段开槽对吹膜有良好的效果；
2
The feedzone-related process of optimizing cut-off saws is introduced and the difficulties existing in control are analyzed.
介绍了木板优选锯的进料区工艺，分析了控制中的通讯难点。
3
Causes include heating too quickly in the feedzone, melting too slowly in the transition zone, insufficient mixing, and excessive heat loss in the adapters or die.