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- The axial drawing ratio and hoop extension ratio should be properly matched. 轴向拉伸比和环向扩张比要合理匹配。
- Hollowness of the hollow polyester UDY increased after cool drawing,decreased after heat drawing, and was down a little while increasing drawing ratio. 冷拉伸后，涤纶未拉伸丝的中空度变大，热拉伸则相反；随着拉伸倍数的提高，涤纶未拉伸丝的中空度有所下降。
- The practical experiments showed that fiber spinnability was optimized when spinneret negative draw ratio was -73%. 工业化试验表明:当喷丝头负拉伸率为-73%25时,纤维可纺性达到最佳状态。
- The required specimens were manufactured successfully and larger drawing ratio curves of hydroforming are obtained by experiments. 最后通过实验成形出合格零件，获得了大拉深比矩形抛物面反光罩的成形曲线。
- PAN fibers with different drawing ratio and different preoxidation degree were investigated by means of sound velocimeter and X-ray diffraction meter. 采用声速仪及X射线衍射仪对不同牵伸倍数和不同预氧化程度的PAN纤维进行取向度和预氧化程度的测试,并将其结果进行对比。
- For PET staple dry drawing process, point\|of\|stretch shift was primarily caused by the factors of draw ratio, drawing speed, temperature and pretension. 涤纶短纤维干式拉伸工艺拉伸点的移动主要因拉伸倍数、拉伸速度、温度、预张力等因素而引起。
- The test results showed that the influence of drawing ratio,speed and temperature on the tension,tension fluctuation and irregularity of the fiber were obvious. 结果表明，拉伸比、拉伸速度和拉伸温度对纤维张力、张力波动和不匀率均存在着明显的影响。
- Abstract: PAN fibers with different drawing ratio and different preoxidation degree were investigated by means of sound velocimeter and X-ray diffraction meter. 摘 要: 采用声速仪及X射线衍射仪对不同牵伸倍数和不同预氧化程度的PAN纤维进行取向度和预氧化程度的测试，并将其结果进行对比。
- The super molecular structure of UHMWPE fibers changes with the increasing draw ratio, which are measured by WAXD, DSC, SAXS and Raman spectroscopy. 用WAXD、DSC、SAXS及拉曼光谱等测试手段,研究了拉伸过程中UHMWPE纤维的超分子结构变化。
- Effects of two components' melt index, spinning temperature, lateral blowing, drawing ratio, crimping and heat setting on fiber quality and properties are discussed. 讨论了两种切片的熔融指数、纺丝温度、侧吹风、后拉伸倍数、卷曲、松弛定型工艺对产品质量及性能的影响。
- By adjusting the temperature, draw ratio, D/R and design-finalized parameters, the optimal processing parameters were found. 通过对热箱温度、拉伸比、拉伸倍数及热定型等工艺参数的调整,确定了最佳的生产工艺参数。
- Effects of draw ratio,modification through blending and surface treatment with chemical reagents on the ad-hesion and tenacity of UHMW-PE fiber were preliminarily investigated. 初步研究了拉伸倍率、共混改性、化学试剂表面处理对超高分子量聚乙烯（UHMW-PE）纤维粘接性和强度的影响。
- Using NaSCN as solvent,acrylic fiber was produced by one-step wet spinning process.The effect of spinneret negative draw ratio on fiber formation was discussed. 采用硫氰酸钠为溶剂,湿纺一步法工艺生产腈纶,探讨了喷丝头负拉伸率对纤维成形的影响。
- When the draw ratio was 7, the friction coefficient and the wear rate along the draw direction was lower than that of undrawn PTFE by about 15% and 40%, respectively. 2. 拉伸比为7的PTFE沿拉伸方向的摩擦系数和磨损分别降低15%25和40%25。
- Do you mind if I draw up the blinds? 我卷起窗帘你不反对吧？
- The process parameters including heat-plate temperature, heat-plate draw ratio of stretcher, speed of stretcher and crimper pressure of stretcher have important effect on bulky top shrinkage. 拉断机的热牵伸倍数、电热板温度、制条速度和出条卷曲压力也对成品毛条汽蒸收缩率有重要影响。
- The influence of specimen dimensions,drawing ratio,radius of round angle,lubricant,height of dropping weight,etc. on SWE for some typical Baosteel IF steel sheet used in the automobile industry is studied. 选具有代表性的汽车用宝钢IF钢板,取不同的试验样杯尺寸、样杯拉延比、样杯圆角半径、冲制样杯时润滑剂、落锤高度等,对汽车钢板二次加工脆化试验的影响因素进行研究。
- The motorbike tank is a container part that is made by welding upper cover and lower cover.It has complicated surface and high drawing ratio, so it is suitable for sheet metal hydroforming in pairs. 它在具有单件液压成形优点的同时，提高了成形效率，减少了成形设备，使得加工成本更低，特别适合于诸如摩托车油箱一类由上、下壳体构成的箱体型零件的成形。
- The effects of the drawing ratio and the addition of a compatibilizer on the morphology of dispersed thermotropic liquid crystalline polymer(TLCP) phase in the PP/TLCP in-situ composites were studied. 考察了熔融挤出后施加的牵伸比和增容剂对聚丙烯(PP)/热致液晶聚合物(TLCP)原位复合材料中TLCP分散相形貌的影响。
