A Research on Closed Valve Cover Production Process Quality Control

Abstract

Abstract: Observing the quality problems in a closed valve cover enterprise, quality control theory and methods are used to improve the quality of closed valve cover. First, a praetor diagram method is used to analyze the product quality problems；and then, using measurement system analysis, process capability analysis is made to find the key factors；using a fishbone diagram, a linear regression analysis is made to design the improvement scheme；using Minitab software, data is analyzed. Finally, improved improved improvedtithe project is successfully implemented, whose result shows that failure rate is reduced largely, and the process capability improved from 0.54 to 1.22.

Key words: quality control, measurement system analysis, process capability, fishbone diagram

Zhao Hui-zhen， Zhao Hu . A Research on Closed Valve Cover Production Process Quality Control[J]. Industrial Engineering Journal , 2014, 17(5): 29-34.

References

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