STUDY OF STRUCTURE AND RIGIDITY OF AIR-JET TEXTURED YARN(ATY)

This paper deals with the structure of air-jet textured yarn(ATY),especilly its core structurein dedail.It is described that overfeed of supply yarn does influence the ATY structure.Then thebending rigidity of ATY has been measured and analyzed.The results shows that various supplyyarns affect the core structure and bending rigidity of ATY.     

纱线强度测量系统的设计与实现

提出一种纱线强度测量方法，设计了单片机纱线强度测量系统．系统采用AT89C51作为纱线强度测试仪的检测与控制核心，扩展了键盘输入、数码管显示、电机驱动、图数检测及纱线断裂检测等5个电路模块，编制调试了其系统软件程序．系统可以替代人工手段检测纱线强度的特性参数，从而界定纱线的品质，有效提高纺织品的质量和稳定性．     

基于学生实践能力培养的电气控制技术课程教学改革探讨

电气控制技术是一门自动化及其相关专业的应用性很强的专业课程.为培养学生实践能力,提高学生综合素质,本文讨论了该课的课程教学改革和实践教学改革的方式方法.这些以实践能力培养为核心的教学及实践活动,大大提高了学生对工程实际项目的理解,培养了学生的工程实践能力.     

Radial Yarn Movement in Yarn Duct of Interlacer

In order to find the relations between the production performonce of interlacer and its cross-sectional Shapcs of yarn duct,radial yarnsd movement in varions yarn ducts of interlacer and its effect on performance of interlaced yarn were studied in this paper. Seven interlacers,which were diffcrent in the cross- sectional shape of yarn duct,were made. Yarn motion in yarn duct of interlace was observed with optical fibers and photo- sensors. Performance of the interlaced yarn was evaluated by the number and the strength of tangles. Experfmental results disclose the relations between the yarn motions and the properties of the interlaced yarn. The interlacer with round yarn duct is capable of producing an interlaced yarn with bigger number of tangles,since It can make yarn transverse frequently the axis of air jet issuing from air jet nozzle. The interlacer with cornered shape of yarn duct makes yarn subjected to the action of compressed air for a longer time,which results in larger strength of tangles.     

Study on Wet Permeability Models of Yarns and Knitted Fabrics

Water transport through the pore structure of the knitted fabric can occur only in place where the fiber-water surface attraction force is greater than the water weight in the capillary. To investigate wet permeability of the knitted yarn in the fabric, a liquid transport model is established. The main factors which have significant influences on the liquid transport have been analyzed. It is derived from the argument that the optimal design for the knitted fabric with quick sweat transport property can be obtained.     

纤维分布和混纺比对毛涤混纺纱毛型感的影响

采用裁面分析了不同混纺比的毛涤混纺纱的毛型感，探讨了毛/涤混纺比与汉密尔顿指数、表面纤维混纺百分率及毛纤维有效覆盖率的关系，分析了不同混纺比的毛/涤混纺纱截面五等份圆环中的实际混纺比和填充紧密度。指出表层纤维混纺百分率是反映纱线毛型感的较为直观、方便、准确的指标，同时提出能保持毛涤混纺纱毛型感的较为合理的混纺比。     

超喂率对空气变形纱的成纱结构、性能及其织物的影响

超喂率是影响空气变形纱(以下简称空变纱)及其织物结构性能的一个重要参数。本文就超喂率对空变纱的形态结构、光泽、强伸度、摩擦等性能以及对空变纱织物性能的影响进行了较全面的实验研究,给出了实测数据,并通过分析而引出了重要结论。     

社会学视野下的政治稳定

政治稳定是促进社会秩序稳定及经济社会全面持续发展的根本保证。政治的稳定要求国家有较为健全的政治制度、稳定的政治结构、政治的结构和功能相匹配、民族宗教矛盾不是十分突出以及社会能够被控制等等。改革开放以来，我国保持政治稳定，努力维护社会稳定，经济和社会取得了长足进步和发展。因此，在社会转型时期，我们更要采取有效措施，继续努力维护政治稳定，为我国经济社会的进一步发展提供有力保障。     

TF18—230型弹簧摇架加压机构的工艺性能探讨

本文测试了 TF18-230型弹簧摇架加压机构的三直线平行度,前胶辊的自调能力,加压力的大小,较全面地探讨了加压机构性能与成纱质量的关系。     

精纺毛型织物中纱线表观直径探讨

讨论了精纺毛型织物中纱线表观直径3种分布状态，将织物分为两大类，分析经纬纱交织点处和孔隙处表观直径之间与理论直径之间的关系；给出了表观直径与织物结构参数间的关系；利用多元统计分析方法建立了表观直径与织物结构参数之间的关系方程，验证结果表明：除纬向化纤长丝对方程有较大的误差平均误差率大于23％之外，方程对其范围内的织物平均误差控制在10%以内。