1) cold-draw ratio
冷拉伸倍数
1.
The technique and process for producing differential dyeable and bi-shringkage PET textured yarn are introduced with disscussion on the differential dyeing and shringking mechanism and influence of speed in spinning,spinning temperature,lateral blowing, temperature and humidity of the quench air,spin-finish and its take-up,cold-draw ratio and ratio.
介绍了异染异缩型涤纶变形丝的生产技术及工艺流程，讨论分析了异染、异缩原理和纺丝速度、纺丝温度、侧吹风风速、风温、风湿；纺丝油剂及上油率；冷拉伸倍数、拉伸倍数、拉伸温度、定型温度等工艺参数对其品质和异染、异缩效果的影响。
2) draw ratio
拉伸倍数
1.
The results showed that match of the spin pump's throughput and the take-up speed,condition of cooling and fiber forming,stretching and thermosetting temperature and after draw ratio would effect the quality of CDP staple fibre.
结果表明:泵供量与卷绕速度的匹配、冷却成形条件、水浴与热定形温度和后拉伸倍数等因素直接影响阳离子可染涤纶短纤维的质量。
2.
The article investigated the influence of draw ratio on the physical properties of nylon-66 industrial yarn.
研究了拉伸倍数对尼龙66工业丝物理性能指标的影响。
3.
8 m/s,draw ratio 5.
8m/s ,拉伸倍数 5 。
3) stretching ratio
拉伸倍数
1.
Effect of stretching ratio on properties of colored PET drawn yarn;
拉伸倍数对有色涤纶牵伸丝性能的影响规律
4) pre-draw ratio
预拉伸倍数
1.
Acccording to the testing result, we found that the preheating temperature and pre-draw ratio are two most important factors which influenced the different dyeing effect of the filament.
发现预拉伸倍数和预加热温度是影响白纹丝异染效果的两个最重要因素。
5) spinneret draft
喷丝头拉伸倍数
1.
The relations between spinneret diameter and spinneret draft and shearing rate are analysed concretly.
具体分析了喷丝孔直径与剪切速率及喷丝头拉伸倍数之间的关系，提出了喷丝孔直径的选择依据。
6) draft ratio
拉伸倍率
补充资料：拉伸倍数
分子式：
CAS号：
性质：又称拉伸比，拉伸倍数。高聚物经纺丝成形后的初生纤维经过拉伸工序后其长度与原长度的比值。通常以拉伸过程中纤维的输出速度与喂入速度之比表示。完整的概念是拉伸行为发生在两部分：一是喷丝头拉伸，即纺丝熔体或液体流出喷丝孔的线速度，与卷绕速度之比，二是上述的初生纤维拉伸。在工艺中此两种拉伸需恰当控制。
CAS号：
性质：又称拉伸比，拉伸倍数。高聚物经纺丝成形后的初生纤维经过拉伸工序后其长度与原长度的比值。通常以拉伸过程中纤维的输出速度与喂入速度之比表示。完整的概念是拉伸行为发生在两部分：一是喷丝头拉伸，即纺丝熔体或液体流出喷丝孔的线速度，与卷绕速度之比，二是上述的初生纤维拉伸。在工艺中此两种拉伸需恰当控制。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条