Based on analyzing the intersection curve between the rolled-piece and roll, the method of determining the nip point is put forward.

基于对轧件与轧辊截交线的分析，提出了在二维直角坐标系中确定轧件咬入接触点的方法。

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The die lips are V-contoured to minimize the air gap between the die and the roll nip whenever necessary.

模具口是V型的，为了随时减少模具和辊轴间的空气间隙。

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The groove depth of the warping roll is as long as a half of the cord diameter. The nip between the pressure roll and No.

整经辊的沟槽深度等于帘线直径，压力辊的沟槽深度为帘线直径的一半。

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