Relation between yarn forming quality and drawing sliver & roving quality was analyzed, and relation between yarn forming quality and configuration of drawing & roving process was also discussed.
分析了熟条和粗纱质量与成纱质量的关系，并就并条、粗纱工艺配置与成纱质量的关系进行了讨论。
FOR yarns that require the additional step, the card sliver goes through the breaker - drawing step and then to the combing operation.
对于需要精梳的纱线，梳棉棉条通过头道并条后，进入精梳工序进行加工。
In this paper, friction field distribution between sliver and pressure bar on a homebred drawing frame is analyzed, and on this basis, the best range of contact arc is deduced.
本文以国产并条机为例，分析了并条机上须条与压力棒上摩擦力界的分布，并进一步推导出了须条对压力棒包围角度的最佳范围。
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