【摘要】 为了掌握圆盘式旋流纺纱设备的加捻气压对成纱质量的影响,在圆盘式旋流纺纱机的其它工艺参数固定的条件下,分别改变旋流加捻器两级喷嘴的气压,纺制了20种长丝包芯纱,测试了所纺纱线的包缠牢度、断裂强力和断裂伸长等指标,并对测试结果进行分析。结果显示,圆盘式旋流纺纱加捻器的两级喷嘴气压的配置对成纱质量有较大影响。当第一喷嘴气压为0.30～0.35MPa,第二喷嘴气压为0.60～0.62MPa时,所纺纱线可以取得较好的包覆性能和强伸性能。更多还原

【Abstract】 To understand the effects of nozzles’ pressure on the performances of disc swirl spun yarn,twenty kinds of yarn were made with varied pressure of two nozzles respectively,while keeping other process parameters constant. Yarn performances such as coverage,breaking force,breaking elongation and breaking force ratio were tested,and the results of the test were analyzed. Results show that the collocation of two nozzles’ pressure has a great effect on the yarn performance.When the pressure of the first nozzle is at 0 30～0 35 MPa and the pressure of the second nozzle is at 0 60～0 62 MPa,the yarn shows a good performance.更多还原