The results showed that the change of raw material, production load, production process parameters and other abnormal factors will do damage to the melt evenness, spinning stability and yarn quality.

• 研究表明：原料的改变，生产负荷的改变，生产工艺参数的改变及其他一些异常因素都会影响熔体的均匀性，纺丝的稳定性和丝的品质。