分析复合肥生产过程中影响产品质量的主要因素,指出原料质量、原料配比、工艺控制、配方变化等影响产品的内在质量,造粒、烘干、包裹工序的操作影响产品的外观质量。同时利用质量管理统计技术,提出用控制图方法判断过程中出现的异常原因和偶然原因,通过过程能力指数(CP)及过程流通合格率等指标判断控制过程是否正常,并提出了相应的解决对策。 The main factors influencing product quality in the process of compound fertilizer production are analyzed. The quality of raw materials, the ratio of raw materials, process control and formulation changes are pointed out. The internal quality of product is affected. The quality of product appearance is affected by the operation of granulation, drying and wrapping processes. At the same time, using the quality management statistical techniques, this paper proposes that the control chart method should be used to judge the cause of the anomalies and the accidental causes. Through the process capability index (CP) and the passing rate of the process flow, the control process is judged to be normal and the corresponding solutions are proposed .