纱线的最大预牵伸比率可达300%，在分条经轴上的最终牵伸率最高可达100%。
The maximum possible pre-stretch of the yarn is 300%, whereas the final stretch at the sectional beam is possible with a Max of 100%.
这里主要研究了牵伸机热盘、热板温度对涤纶长丝热收缩率的影响，最后，得出其回归方程。
The affection of the temperature of heat board and heat plate on the heat shrinkage of polyester filament was studied in this paper; finally the regression equations were given.
文中还系统地研究了反应釜的各项参数对聚合物性能的影响； 纺丝线定型压力、二牵伸温度以及烘干温度对缩率的影响。
This article also systematically studied the effects of reactors' parameters, pressure of steaming, temperature of stretch and dryer on fiber's ultimate properties.
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