Lining board, mixing blades adopts high hardness and high toughness wear-resistant steel and long service life.

衬板、搅拌叶片均采用高硬度、高韧性的耐磨合金铸钢，使用寿命长。

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Then, by analyzing the traversing motion of the yarn which is controlled by the rotary blades and guide board, the design principle of the guide board profile is presented.

通过对旋翼导纱机构导纱运动的分析，提出了导纱板工作曲线形状的设计原理。

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