锦纶6帘子线原丝生产中的断头因素分析

FACTORS CAUSING END BREAKING DURING PA6 TIRE CORD AS-SPUN YARN PRODUCTION

介绍了锦纶 6帘子线原丝的工艺流程及主要设备 ,从原料、工艺及设备 3个方面分析了影响锦纶 6帘子线原丝生产断头的因素。选用粘度较高 ,含水率约 0 .0 3%且质量稳定的切片 ,严格控制纺丝温度 ,侧吹风温度约在 17℃ ,风速度 0 .5～ 0 .6m/ s,湿度在 83%～ 93% ,POY成形较均匀 ,控制牵伸辊温度及拉伸倍数与拉伸速度 ,可减少锦纶

The technological process and the main equipment for PA6 tire cord as\|spun yarn production were introduced.The factors causing end breaking during PA6 FDY production were analyzed from the aspects of feedstocks,process technology and wquipment.The end breaking could be decreased efficiently by using the chips with higher viscosity,water content of 0.03% and consistent quality under the conditions of the well\|controlled spinning temperature,air temperature of about 17% and speed of 0.5~0.6 m/s which produce homogeneous POY formation.Meanuuhile,it is also crucial to control the draw roll temperature,draw ratio and drawing speed.