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P控制图是把不合格率作为一种参数提出,用统计方法判断不合格串是否稳定及变化规律的一种控制图。既往这种控制图应用于工业产品质量控制过程中,对指导产品质量的提高起到良好作用。本文拟用
P control chart is to pass the failure rate as a parameter, with statistical methods to determine whether the stability of unqualified string and the variation of a control chart. This control chart used in the past, industrial product quality control process, to guide the improvement of product quality play a good role. This article is intended to use