排序方式: 共有61条查询结果,搜索用时 78 毫秒
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研究了梳棉机锡林速度对成纱质量的影响问题。用PT7000条干测试仪对四档不同锡林速度所加工的纱线质量进行了检测。结果发现随着锡林速度提高,成纱千米棉结随之减少,规律性十分明显,成纱细节和粗节以锡林350 r/min为最佳,成纱条干以450 r/min为最佳,成纱毛羽以296 r/min所加工的纱线最少。总体而言:以锡林速度350 r/min最有利于成纱质量的改善。 相似文献
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就并条工序的牵伸工艺参数对棉结的影响进行了对比实验.结果表明,在并条工序采用顺牵伸、增大头并后区牵伸倍数和后区隔距,减小二并后区牵伸倍数,放大后区隔距,对降低并条工序棉结有利.根据实验结果对生产中的并条牵伸工艺进行了优化,取得了较好的效果. 相似文献
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分析了高档色织米通用纱在纺纱、后加工及织造准备阶段棉结的形成、形态、增减趋势 ,阐述了从纺纱到织前准备各工序对棉结的影响 ,提出了降低色织米通布棉结的措施 . 相似文献
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本文从纤维的成熟度、整齐度:分离度、伸直度和平行度等因素入手,结合作者的生产实践经验,对棉结形成原因进行了分析,提出了降低棉结的方法和措施。 相似文献
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Effect of flat heel-toe difference (HTD) of a card on neps of card sliver and yarn was studied. The card sliver and yarn were produced under different HTDs, doffer speeds and cylinder speeds. The neps in card sliver and yarn were tested with Premier aQura and yarn evenness tester of PT7000, respectively. Effect significance of HTD on card sliver neps and yarn neps was analysed with SPSS. The results show that HTD has significant influence on both card sliver neps and yarn neps, and 0.42?mm HTD plan is the best in nep removing. The correlation degree between nep numbers of card sliver and yarn was also analysed with SPSS. It is found that nep number in card sliver has a high correlation with that of yarn, and the sequence from high to low is yarn neps (+140%), yarn neps (+200%) and yarn neps (+280%). It is also found that the correlation degree between nep number of card sliver and yarn is higher than that of seed coat neps (SCN) number in card sliver and yarn neps. 相似文献
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为证明在国产普通梳棉机上减少活动盖板,增加固定盖板根数及加装棉网清洁器是其向高产改造发展的方向,通过分析新型固定盖板结构形式(包括根数)并结合纺纱厂对生条、成纱的各项指标试验对比,说明将活动盖板减少到84根左右,后固定盖板增加棉网清洁器时普通梳棉机能在保证原有成纱质量的前提下提高台时产量。 相似文献
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为了提高梳棉机的梳理效能,在FA224型高产梳棉机上大面积采用了国产金轮(GERON)公司新型金属针布。分析了其针布配置的参数、工艺及其试验的生条质量。30个月左右(从未磨砺)的使用实践表明:金轮针布设计先进、制造精良、梳理细致、耐磨性好、寿命较长,完全能够满足我厂生产纯棉中细号高档针织纱的需要;该针布使用初期与Gra... 相似文献
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