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- limiting drawing rate 极限拉深系数
- Using polaroid and horizontal ATR accessories combining FTIR spectrometer, the orientation of PPT fiber undergoing different drawing rate was studied. 本文采用偏振衰减全反射红外光谱法 ,对不同拉伸工艺条件下的PPT纤维进行了取向研究。
- The large diameter mesophase pitch carbon monofiber in uniform size was obtained by controlling the matching of extrusion flow and drawing rate. 熔纺时控制了挤出流量和牵伸速率的良好匹配,获得了丝径均匀的大直径中间相沥青炭单丝。
- Compared with even die-drawing, camber die-drawing’s limit drawing coefficient is detracted, so efficiency is increased. 曲面凹模拉深与平端面凹模拉深相比，降低了极限拉深系数，减少工序、提高了效率，降低了成本。
- It was found that at the higher screw speed, the higher draw rate and the lower processing temperature the PA6 fibrils were finer and the mechanical properties of PP/PA6 compos... 发现当螺杆转速越高、牵引速率越快、加工温度越低，分散的PA6纤维尺寸越小，复合材料的力学性能越好。
- The average diameter of PA6 fibrils decreased with the increasing draw rate, and the diameter distribution of fibrils became narrow, the mechanical properties were improved. 发现随牵引速度的提高,PA6微纤的平均直径变小,尺寸分布更均匀,力学性能也随之提高。
- The results showed that the fibrillating of dispersed phase enhanced with the increase of draw rate, but no visible change in diameter of fibers was observed. 结果表明，随著牵引速度的提高，纤维状分散相所占比例增加，但纤维直径无明显变化；
- The average diameter of the PA6 microfibrils hardly changed with the content of PA6 but decreased significantly with the increase in the shear rate and draw rate. 显微形态观察发现在考察的浓度范围内微纤的直径基本与分散相含量无关。
- It was found that at the higher screw speed, the higher draw rate and the lower processing temperature the PA6 fibrils were finer and the mechanical properties of PP/PA6 composites were better. 发现当螺杆转速越高、牵引速率越快、加工温度越低,分散的PA6纤维尺寸越小，复合材料的力学性能越好。
- It was employed that changing the processing temperature, screw speed and draw rate in order to study how PP/PA6 in-situ fibrillation composite was affected by the processing conditions. 在PP/PA6共混物的挤出加工中分别调整加工温度、挤出机螺杆转速、牵引速率，得到不同加工条件下的PP/PA6原位成纤复合材料。
- Keywords Strain hardening index;Limiting draw ratio;Sheetmetal; 材料强化指数;极限压延比;板材;
- Surely there is a limit to what one can bear. 人的忍耐肯定是有限度的。
- The proposal set a time limit of one year. 提案规定了一年的限期。
- What's the speed limit on the motorway? 高速公路的速度限制是多少?
- Simulation study on limit drawing coefficient of cylindrical part 筒形件极限拉深系数数值模拟实验研究
- He was fond of drawing when he was a child. 他还是个孩子时就喜欢画画。
- He was had up for exceeding the speed limit. 他因超速行驶而遭控告。
- The absence of color in that drawing make it dull. 那幅画因没有着色而显得晦暗。
- He weighed in at several pounds below the limit. 他赛前量体重比规定限度少几磅。
- The days are drawing out now that it's spring. 春天到来，白昼越来越长了。
