This article with the help of instrument principle analyzed the common failures occured during the use of Y331A model yarn twist tester, and put forward some approaches to fixing breakdowns.
本文对Y331A型纱线捻度机在使用中经常出现的故障问题，结合仪器原理进行分析，提出了故障排除方法。
Determination of twist in yarns-Untwist-retwist method
GB/T2543.2-1989纱线捻度的测定退捻加捻法
Unbalanced yarns have sufficient twist to kink.
卷缩的纱线捻度过高会产生扭结。
determination of twist in yarns:direct counting method
纱线捻度的测定: 直接计数法
Textile glass-Yarns-Determination of twist balance index
GB/T7690.6-1989纺织玻璃纤维纱线捻度平衡指数的测定
On both pins friction decreases with increasing twist.
两种圆杆上摩擦都随纱线捻度的增加而减少。
This conditioning is done to allow the filling yarn to relax, reducing the twist liveliness of the yarn and preventing the formation of kinks.
这种环境可以使纬纱松弛,降低纱线捻度的不稳定性,防止发生扭结。
Used for testing the twist and twist irregularity of all kinds of yarns.
用于测定各种纱线的捻度及捻度不匀率。
The strength of yarns is due, in part, to the amount of twist that has been imparted. Strong yarns require considerable twist. However, beyond an optimum point additional twist will cause yarns to kink and finally to lose strength.
影响纱线强力的因素之一是捻度的大
"Two or more single strands may be twisted together to form ply yarn. Knitting yarns have less twist than weaving yarns. Thread, used for sewing, is a tightly twisted ply yarn. "
针织用纱捻度比机织用纱少,可以是单纱或股线。缝纫用线是具有圆截面的紧密加捻的合股线。
As the yarn becomes finer, it requires more twist; heavier yarns can have very low twist and be durable.
纱线越细,要求的捻度就越大。粗重的纱线可以使用较低的捻度,但强度较大。
Loosely twisted worsted yarn used for fancywork and embroidery.
松捻精纺纱线松捻精纺纱线，用于钩编和刺绣
testing method for twist number and twist contraction of plied yarns
加捻纱线的捻数剂收缩率测定法
"More twist produces stronger yarn; low twist produces softer, shinier yarn."
捻度较大的纱强力好,低捻纱柔软有光泽,高捻产生皱纱。
The amount of twist inserted has a major effect on the degree of fiber binding within the yarn.
捻度数量多少对纤维在纱线内粘合的程度有很大影响。
" Textile glass--Continuous filament yarns, staple fibre yarns and rovings--Determination of linear density"
GB/T7690.1-1987纺织玻璃纤维连续纤维纱、定长纤维纱和无捻粗纱线密度的测定
One trend is the development of packages which will deliver a zero twist yarn, and the utilization of the yarn at low twist levels.
目前的一种趋势是使用的筒子在退绕纱线时不给纱线加捻,这样纱线在使用时可以保持较低的捻度。
Yarns used in making twill weave fabrics frequently are tightly twisted and exibit good strength.
斜纹织物使用的纱线通常具有较高的捻度,织物强力较高。
The advantage of this system is that the yarn does not rotate upon withdrawal and therefore the yarn twist remains constant.
这种退绕方式的优点是：纱线尖退绕过程中没有旋转,纱线的捻度没有变化；