A servo control system composed of PMAC2 controller, servo controller, servomotor and industrial control computer has been developed for carbon fibre production to control the draft ratio precisely.
研制了一套应用于碳纤维生产的伺服控制系统，该系统由PMAC2控制器、伺服控制器、伺服电机及工控机组成，实现对牵伸比的准确控制。
The results show that the apparent density of hard elastic polypropylene increases with a lower melt temperature, or a higher draft ratio, or a higher air blasting speed.
结果表明，熔体温度下降、所受拉伸比增加或冷却风速度升高均可使表观密度增加。
The effects of rotor speed, draft ratio and twist factor on the properties of elastic rotor-spun yarns were investigated, and the technology optimizing was done through the orthogonal test.
分析了转杯速度、牵伸倍数、捻系数对弹性转杯纱性能的影响，并通过正交试验对工艺参数进行了优化。
The effects of rotor speed, draft ratio and twist factor on the properties of elastic rotor-spun yarns were investigated, and the technology optimizing was done through the orthogonal test.
分析了转杯速度、牵伸倍数、捻系数对弹性转杯纱性能的影响，并通过正交试验对工艺参数进行了优化。
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