A no tension rock beam model has been presented according to the mechanical behaviors of cracked roof beam in this paper.

本文根据不连续岩石梁的物理力学特性提出了无拉力岩石梁的力学解析模型。

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Arranging opening time, back beam height, tension, opening Angle, drafting, reed-in reasonably were adopted in weaving process. These practice ensures no loop and enhance weaving efficiency.

织造工序要合理设置开口时间、后梁高度、上机张力、开口角度，并合理安排穿综及穿筘工艺，保证了经纱不起圈，且织造效率提高。

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To resolve the problems of inaccurate control of sizing speed, dry can temperature and beam winding tension of JSSJ-83 sample sizing machine, innovation of it was done.

为解决J SSJ - 83型小样浆纱机浆纱速度、烘燥温度、织轴卷绕张力控制不准确的问题，进行了技术改造。

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