【摘要】 细纱机后区牵伸形式影响成纱条干。对现有的细纱机后区牵伸形式进行分析,介绍了曲线牵伸上销对后区牵伸形式的影响,并对普通紧密纱和曲线牵伸上销纱线进行了测试,结果表明曲线牵伸上销对14.6tex和9.8tex的紧密纺成纱条干改善明显,但7.3tex的紧密纺成纱条干恶化。更多还原

【Abstract】 Back region drafting form has effects on yarn evenness. In this article, back region drafting form has been analysed and the effect of the curve drafting up-cradle on the back region drafting form is introduced. After the tests of the compact spinning yarn and the curve up-cradle drafting yarn, it is shown that the curve drafting up-cradle has an obvious effect to improve the yarn evenness of 14.6 tex yarn and 9.8 tex yarn, but the yarn evenness of 7.3 tex yarn has been deteriorated.更多还原