hot stretching meaning in Chinese
热伸展
Examples
- Composed of extruder , head , cooling water tank , first puller , hot stretch able bellow , second puller , pressing device , shaping box , third puller , coiling device and electrical control system , the set has been mainly used in the production of machine used pp packing straps
该机组主要由挤出机、机头、冷却水槽、一次牵引，热风拉伸烘箱、二次牵引、压花装置、定型箱、三次牵引、卷取装置及电器控制系统等构成，主要用于pp机用打包带的生产。 - Hot stretching ratio ( hsr ) was maintained at 3 . 96 , cb content was changed . the results indicate that when the cb content increases , the room temperature resistivity of composites decreases . at the cb content of 12phr , the room temperature resistivity of blends sharply reduces , and composites change from insulator to conductor , the value is entitled the percolation threshold ; at the cb content of 20phr , the room temperature resistivity of composites achieves 10 ~ ( 2 ) cm
结果表明:随炭黑含量增加，复合材料的体积电阻率降低，当炭黑含量达到12phr ( phr指每一百份树脂中所含填充物的重量份数)左右时，复合材料的体积电阻率急剧下降，此时一复合材料由绝缘体向导体转变，这个值被称为逾渗阀值;当炭黑含量到20phr时，复合材料的体积电阻率达到1 。 - In this investigation carbon black - filled electrical conductive composites of poly ( ethylene terephthalate ) / polyethylene were first prepared through the single - screw melt - blended extrusion , then drawing , followed by the quenching and subsequent press molding . the relationships among the influencing factors including composition , hot stretching ratio and compatibilizer , morphology and properties of composites were systematically investigated . positive temperature coefficients effect and crystallization behaviors of composites were preliminarily analyzed
本文拟采用单螺杆熔融共混挤出?热拉伸?淬冷的新的成型方法制备炭黑填充的pet pe复合导电材料，热拉伸的目的是使材料的分散相( pet相)在加工过程中原位形成纤维，而炭黑基本分散在纤维中或纤维的表面上，使炭黑粒子间间距减小，形成更多的导电通路，从而提高材料的导电性能，同时保持或提高材料的力学性能。