【作者】 苏哲正；

【导师】 葛明桥；

【作者基本信息】 江南大学 ， 纺织工程， 2005， 硕士

【摘要】 网络加工技术是用高速气流垂直射入网络器内?利用所产生的涡流使丝束之间相互交络纠缠,增加丝束抱合性能的一种加工方法。它具有工艺流程短、生产效率高、加工成本低和对环境无污染等优点。同时也作为一种新产品的开发手段,得到了广泛应用。目前对网络器的研究主要针对丝道方面的较多,还很少见到专门对气道截面形状的研究报导。有介于此?本课题对网络器的气道截面形状和截面积进行了相关研究。根据以往的研究?网络器之丝道与气道截面积比最好为二分之一到六分之一,本文采用五种截面形状不同之丝道与两种截面形状之气道互相搭配,并分别取丝道截面积的二分之一、四分之一和六分之一来制作网络器圆形气道和正方形气道,通过改变加工参数(空气压力、喂入率、加工速度)来对网络器的加工性能进行试验,分析了网络器气道截面形状对网络加工的影响?发现丝道截面为圆形、椭圆形、倒三角形和正三角形适合搭配正方形截面气道,若丝道截面为双环型则适合搭配圆形截面气道。另外?通过实验还研究了丝道与气道截面积的比例对网络加工的影响。发现圆形、椭圆形和正三角形丝道网络器搭配气道截面积为丝道之四分之一可得到最佳之加工效果?双环型丝道网络器则是搭配气道截面积为丝道之六分之一可得到最佳之加工效果?倒三角形搭配气道截面积为丝道之三分之一可得到最佳之加工效果。另外?为缩小各种不同丝道截面形状与丝道截面积对气道截面积的比例范围?又以四种丝道截面形状网络器并取相对于该网络器丝道截面积的二分之一到六分之一来制作网络器圆形气道?分析了网络器气道截面积对网络加工的影响?发现当丝道截面形状为圆形和椭圆形时,配合网络器气道截面积为丝道截面积的三分之一到五分之一时可得到较高的网络度?而网络器丝道的截面形状为双环形时,配合网络器气道截面积为丝道截面积的二分之一、四分之一和六分之一可得到较高的网络度?当丝道截面形状为倒三角形时?配合网络器气道截面积为丝道截面积的二分之一、三分之一和四分之一可得到较高的网络度。更多还原

【Abstract】 The technology of interlacing is a method to improve the combination character offilament-bundles, utilizing the high-speed swirl air that ejects to the feeding filaments in ainterlacing nozzle, and make filaments entangle with each other. There are many advantages ofinterlacing process, such as short process, high efficiency, low cost, no pollution and so on.What’s more, it is widely used as a method of developing new products. By now, most of theresearches on interlacing nozzle are about silk channel, and few research is found on the shapeof air channel. For this reason, this paper made related research on the shape and area ofnozzle’s air channel section.The best ratio of section size of air channel to silk channel is between 1/2 and 1/6according to former researches. Five kinds of silk channel and two kinds of air channel indifferent section shape were chosen to match each other respectively. The section shapes of airchannel included circle and square. And the section size of air channel was made in three types,which were the half, the quarter and the one sixth of that of air channel. Process characters (airpressure, feed ratio, yarn speed) were varied to test the property of nozzle. The effect of thesection shape of air channel on interlacing process was analyzed, and it is found that when thesection shape of the air channel is circle, ellipse, upside-down triangle, or triangle, then the airchannel will be suitable to match an air channel with square section shape, and that when thesection shape of the air channel is double-circle, the air will be suitable to match an air channelwith circular section shape. The ratio of the silk channel to air channel was also discussed. Thebest effect of interlacing process is found in following conditions: firstly, when the sectionshape of the air channel is circle, ellipse or triangle, the section size of air channel is the onefourth of that of silk channel. Secondly, when the section shape of the air channel isdouble-circle, the section size of air channel is the one sixth of that of silk channel. Finally,when the section shape of the air channel is upside-down triangle, the section size of airchannel is the one third of that of silk channel.Moreover, to shorten the ratio range of section size of air channel to silk channel,nozzles with circle-sectioned air channel were made according as four kinds of section shapeof silk channel. The size of air channel is from the one second to the one sixth of that of silkchannel. The effect of the section area of nozzle’s air channel to interlacing process wasanalyzed. It is found that the number of tangles is much higher under the following conditionsthan others: the first, when the section shape of the silk channel is circle or ellipse, the sectionsize of air channel is from the one third to the one fifth of that of silk channel. The second,when the section shape of the silk channel is double-circle, the section size of air channel is theone second, or the one fourth, or the one sixth that of silk channel. The last, when the sectionshape of the silk channel is upside-down triangle, the section size of air channel is the onesecond, or the one third, or the one fourth of that of silk channel.更多还原