Quality control technology of conforming run length in a six sigma process

To meet the demands of the quality management development of modern enterprise, a conforming run length (CRL) control charts based on the number of consecutive conforming items is presented. This paper points out a new opinion of the optical limits through the analysis of the variation between the control limits of CRL control charts and the probabilities as well as the costs of the two types of the errors and tests. Its related conclusions were last analyzed, which effectively satisfies the demands for achieving the six sigma quality level.