Relationship between Beating and Setting-on Place

In this paper,what causes the setting-on place of woven fabrics without adopting tension compensation is explained by means of experimental methods.Owing to that the main shaft speed and the beating speed of reed can not attain the normal values at setting-on,the warp tension and the beating force of the reed can neither reach the normal level.Therefore,the relative slippage movement of the weft against the warp during beating will be less,while the common movement of the weft together with the warp will be bigger than those at nor-mal running.As a result,the setting-on place is then     

打纬及开关车织物横档疵点

以实验的方法解释了织机在未采用张力补偿措施前提下,产生开关车织物横档疵点的原因。织机开关车时由于主轴转速、钢筘打纬速度达不到正常数值,使经纱张力及钢筘打纬力达不到一定的正常数值,以致打纬过程中经纬纱线相对滑移量比织机正常运转时的数值小、共同移动量比正常运转时的数值大,所形成的织物达不到正常的纬密,在织物上产生横档疵点。同时,也指出了长期以来对织物横档疵点成因一种肤浅的解释。     

安全气囊专用织机的多臂与多梭箱机构机电一体化改造

叙述了在研制汽车用安全气象的项目时,对传统织布机的多臂和多梭箱机构的机电一体化改造。本改造虽为专门用途设计,但对其它织机的老机改造同样县有实际的意义。     

The Bundle Effect of UD - laminate Made of Friction Spun Core Yarn as Premix

Consolidation of thermoplastic unidirectional(UD)lami-nate with friction spun core yarns was investigated,espe-cially the characterization of filament bundles in consoli-dation was analyzed.The results showed that the bundleeffect was affected considerably by processing conditions(applied pressure and processing time).The boundaryof the bundles was disappeared under suitable processingconditions and finally an even fiber/resin distributioncould be attained.In consolidation,filament bundlesgetting close each other and resin flowing into the bundl-es occurred simultaneously,and eventually the bundleswere fully impregnated by the resin.Fiber packing den-sity in UD-laminate was the same as that of frictionspun core yarn(55%-65% in volume)and was not af-fected significantly by processing conditions under thecurrent experimental conditions.     

经纱蒙脱土混合浆的浆膜力学性能

把纳米蒙脱土与传统的纺织浆料混合,以此改善经纱上浆浆膜的性能.探讨了纳米蒙脱土颗粒的分散性,分析了纳米蒙脱土在磷酸酯淀粉与聚乙烯醇(PVA)混合浆液中不同的质量分数对浆膜力学性能的影响和影响机理.研究结果表明:在纺织浆液中添加适量的纳米蒙脱土,能够优化浆料的组合和改善浆膜的力学性能.     

丙烯酸酯类浆料中丙烯酸甲酯含量对浆膜力学性能的影响

为寻找浆液中丙烯酸甲酯含量和浆纱质量的关联性,对丙烯酸甲酯含量不同的丙烯酸酯类浆料,利用红外光谱分析结构特征,使用热分析仪器测量浆膜玻璃化温度和力学性能的变化趋势.研究表明:丙烯酸酯类浆料中丙烯酸甲酯含量的不同,不会显著影响其化学结构,但可以引起浆膜力学性能的不同,对浆纱质量有明显的影响.