利用XRD研究了PAN基碳纤维在连续高温石墨化和热牵伸石墨化过程中纤维内石墨微晶沿纤维轴择优取向性的变化。
The changes of preferred orientation of PAN-based carbon fibers during continuous high temperature graphitization and hot stretching graphitization were investigated by X-ray diffraction (XRD).
研究表明牵伸连续性很好，假编变形丝特性的偏差很小。
With regard to drawing constancy, the investigation showed very good results. The characteristics tested have a low coefficient of variation.
在牵伸过程中连续拉伸长丝，并将其卷绕起来，长丝的强度和弹性会因此而提高。
The process of drawing irreversibly stretches the spun filaments and winds up the stretched yarn. The strength and recoverable extensibility are thereby increased.
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