15 kt/a国产锦纶6连续聚合装置切片高速纺丝工艺探讨

摘要

介绍了国产15 kt/a聚合装置生产的YH500C锦纶6有光切片在高速纺装置上的 生产情况 ，调整纺丝温度，控制侧吹风温度20℃，速度0.4～0.5 m/s，RH为65%～75%，上油率为 0.5%～0.8%，调整冷却集束点位置，选择合理的聚氨酯摩擦盘和热箱温度，则可生产出 质量稳定的155 dtex/48 f锦纶有光DTY产品。%The production situation of YH500C bright chips produced o n 15 kt/a domestic VK tube applied to high -speed spinning was introduced. The produced chips had consistent quality and a bsolutely suited to high-speed spinning when the process parameters, such as sp inning temperature, spinpack filter medium, collection position and hot box temp erature etc., were well controlled. The consistent-quality 155 dtex/48 f bright nylon6 DTY can be obtained if the fore and after spinning process was optimized as followed: cross air blow temperature 20℃, air speed 0.4～0.5 m/s, RH 6 5%～75%, oil pick-up 0.5%～0.7% and rational choice of polyurethane friction di sc and hot box temperature.