摘要
经典的休哈特控制图对质量特征值的均值波动检出力较弱。采用单值－移动极差控制图控制空调充氟量在短期内往往很难发现充氟量偏差值的漂移，导致充氟量偏差调整不及时。本文采用累积和控制图（ＣＵＳＵＭ）来控制充氟量偏差的变化，改进了充氟偏差调整方式，在保证质量的同时降低了生产成本。
Teditional Shewhart control charts have low power in detecting mean shift of quality characteristics under control. When an individual - moving range control chart(X - Rm) is used to control its deviations of fluorine filling amount, It is found that X - Rm is too insensitive to the shift of the deviations and unable to calibrate its fluorine filling machines in time. A CUSUM control chart is used to solve the problem and to improve machine calibration,which results in high quality and low cost in fluorine filling process.
出处
《工业工程》
2000年第4期24-26,共3页
Industrial Engineering Journal
基金
国家863/CIMS基金资助项目!(863-511-944-009)
关键词
累积和控制图
空调
充氟生产
质量控制
individual moving range control chart
CUSUM control chart
power
