十、控制图控制图不同于前面提到的几种方法,它是直接使用于动态的生产过程中,及时迅速地反映动态中的工序质量状况,指导工序,起事先预防作用的方法。它的作用是通过图表来显示生产随时间变化的过程中质量波动的情况;它的使用有助于分析和判断是偶然性原因还是系统性原因所造成的波动,从而提醒人们及时 Ten, control chart Control chart is different from the above mentioned several methods, it is directly used in the dynamic production process, promptly and quickly reflect the quality of the dynamic process conditions, guide the process, play a preventive role in advance. Its role is to graphically show the quality fluctuations in production over time; its use helps to analyze and determine whether the cause is due to contingency or system-induced volatility, thus reminding people that timely