The process parameters controlled by CUSUM, such as intrinsic viscosity of polyester chip, end carboxy group and diethylene glycol etc, provide steady product quality and continous production.

• 通过对在线聚酯切片的特性粘数、端羧基、二甘醇等指标的累积求和统计控制，可保证产品质量稳定，保持生产连续稳定。