拉细 fine-draw
finedraw
- 纤维薄层被拉细,加捻,形成的细纱被卷绕到筒管上。
The thin layer is attenuated, twist is inserted, and the resulting yarn is wound onto bobbins. - 否则,你也可以使用一个较大的口模开口,以减少口模出口应力,然后把挤出物拉细到所需要的尺寸。
Or you can use a larger die opening to reduce die-exit stress, and then draw the extrudate down to the desired size. - 一般前面一对罗拉的转速是后面一对罗拉转速的30倍,这样速度的差使纱条抽长拉细,变均匀,变光滑。
In spinning, the front set rotates about 30 times faster than the back set. This difference in speed attenuates the yarn and makes it even, smooth and uniform.
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