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yarn breaks
相关语句
  纱线断头
     A Powerful Tool for Monitoring Yarn Breaks
     监控纱线断头的利器
短句来源
  “yarn breaks”译为未确定词的双语例句
     High yarn quality is therefore no longer defined by the number of yarn breaks or clearer cuts.
     因此高质纱的定义不再取决于纱的断头数或清纱切除率。
短句来源
  相似匹配句对
     A Powerful Tool for Monitoring Yarn Breaks
     监控纱线断头的利器
短句来源
     Yarn Hairiness
     纱线毛羽
短句来源
     The Fashion of Yarn
     纱线是时尚潮流的风向标
短句来源
     It is observed that tenacity of gray yarn has a good relation to weft breaks.
     研究表明原纱的强度与纬纱的断裂有很大关系。
短句来源
     the procedure breaks the law;
     程序违法;
短句来源
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  yarn breaks
Smoother starting to reduce yarn breaks on draw-twisters
      
The tension yarn breaks are found in the already spun yarn, normally in between the take-off nozzle and take-up rollers.
      
Their use in staple spinning is problematic since they tend to cause yarn breaks.
      
This maximizes the process efficiency by minimizing yarn breaks and maximizing throughput.
      
On the other hand, the spinning yarn breaks occurs in the yarn peel-off zone in the rotor groove when continuous fibre spin-in is interrupted.
      
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This paper deals with the tensile behaviour of rotor spun yarns. Hearle has made valuable contributions to the tensile behaviour of staple-fiber yarn, his work, nowever, majorly covered ring spun yarn which is considered to have ideal construction. Having regard to the special construction of rotor spun yarn, some improvements on Hearle's theory have been made in order to apply Hearle's theory to rotor spun yarn. Based on these improvements the tensile curve of rotor spun yarn...

This paper deals with the tensile behaviour of rotor spun yarns. Hearle has made valuable contributions to the tensile behaviour of staple-fiber yarn, his work, nowever, majorly covered ring spun yarn which is considered to have ideal construction. Having regard to the special construction of rotor spun yarn, some improvements on Hearle's theory have been made in order to apply Hearle's theory to rotor spun yarn. Based on these improvements the tensile curve of rotor spun yarn has been calculated and the result was satisfactory. The paper then goes into investigating the effect of main machine parameters and spinning conditions, such as P.T.E. length, fiber effective length, yarn specific volume and fiber migration ratio, on the tensile behaviour of rotor spun yarn. It was found that the following are noteworthy for improving the mechanical properties of rotor spun yarn: 1. Selecting suitable navel so as to control the P.T.E. length within a reasonable range. 2. Improving the design of single fiber supply device to decrease the amount of spoiled fiber and hence increase the fiber effective length. 3. Increasing spinning yarn tension without yarn break to enhance the fiber migration ratio. 4. For the rotor in yarn of industrial use, it is the way to increase the yarn strength that the rotor groove should be designed with the groove angle that is of benefit to decrease the yarn specific volume.

本文讨论气流纱的拉伸特性。Hearle曾对具有理想结构纱线的拉伸特性进行过比较完整的研究工作。本文则根据气流纱独特的成纱结构,对Hearle理论在气流纱中的应用作了一定的修正,并在此基础上对气流纱的拉伸特性作了分析计算。计算结果与实测结果基本相符。最后还从气流纱的应力-应变关系式中,就影响气流纱强力、初始模量以及断裂功等等力学特性的一些主要工艺参数进行了分析讨论。得出合理选用阻捻盘、很好控制捻度传递长度;合理设计与选用分梳及输棉机构,在不断改善单纤维供应的同时,尽量减少纤维损伤,提高纤维有效长度;适当提高纺纱张力,增加纤维转移等等都是改善气流纱强力等力学特性、提高成纱质量的有效途径。对工业用气流纱,还可通过合理设计凝棉槽,以提高气流纱紧密度的途径来提高气流纱强力。

A detailed expoundation is made here on the automation of speed option andreglation of single yarn tester in the light of a theoretical analysis and produc-tion practice,When adopting the mean inductive correction method worked outaccording to the principles of mathematical statistics, the tester could automati-cally optimize an ideal tensil specd through min, sampics and regulations andrange most of the yarn breaks within a standard fixed time.This is the mosteutstanding characteristics of the intellegient...

A detailed expoundation is made here on the automation of speed option andreglation of single yarn tester in the light of a theoretical analysis and produc-tion practice,When adopting the mean inductive correction method worked outaccording to the principles of mathematical statistics, the tester could automati-cally optimize an ideal tensil specd through min, sampics and regulations andrange most of the yarn breaks within a standard fixed time.This is the mosteutstanding characteristics of the intellegient control of domestic single yarntester supericr to that of cverseas similarity .

本文通过理论分折和应用实践,详细论述并介绍了单纱强力机选速调速自动化的研究成果。根据数理统计学原理,设计采用的均值跟踪修正法,可使仪器通过最少量的采样与调整次数,自动优选出理想的拉伸速度,控制更多的断纱时间落在标准规定范围内,并使之成为国产单纱强力机在智能软件方面优于国外同类仪器的最显著特征。

Through spindle following and statistics analys. we have defined that the yarn breaks in DTY process when POY yarn withdraw to 1-2cmthick, POY tail yarn is difficult to intertwine. DTY breaks and unitconsumtion increases. The maijor reason is that supply yarn is scratchedfor the end surface burr of POY paper tube. So we decide to attach asmooth surface steel cover to the end of POY paper tube in order to avoidyarn touching the end surface of the paper tube, ensure the POY yarncan...

Through spindle following and statistics analys. we have defined that the yarn breaks in DTY process when POY yarn withdraw to 1-2cmthick, POY tail yarn is difficult to intertwine. DTY breaks and unitconsumtion increases. The maijor reason is that supply yarn is scratchedfor the end surface burr of POY paper tube. So we decide to attach asmooth surface steel cover to the end of POY paper tube in order to avoidyarn touching the end surface of the paper tube, ensure the POY yarncan be withdrawn smoothly and obtain satisfactory effect.

本文通过锭位跟踪和统计分析,确定了DTY加工过程中POY丝筒退绕至1~2cm厚度时发生断丝,造成POY尾丝交接困难,DTY断头率高,单耗上升的主要原因是POY纸管端面毛刺使原丝划伤,提出了在POY筒管端加盖一个表面光滑的不锈钢盖这一辅助装置,以避免丝束与纸管端面的接触,从而保证POY丝顺利退绕完的对应措施,取得令人满意的效果。

 
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