Application of MSPC on Tobacco Threshing and Redrying Process Controlling
In order to implement the process monitoring for various indexes of lamina structure at the same time and ensure the stability of lamina quality, the lamina samples , from Yunnan province threshing and redrying factory in 2009 ,were analyzed by multivariate statistical process control. The stability of the. three indexes of lamina structure was judged by T2 diagram of multivariate statistical process control and every uncontrolled group variables were tested. The results showed that during threshing and redrying, stability of group 7 and I land 17 out of control happened because medium partical content and small partical content was relatively high. Multivariate statistical process control could be applied in threshing and redrying process and nany variables could be monitored simultaneously by T2 diagram of multivariate statistical process control and Bonferroin test have some reference value for finding the uncontrolled variables.
multivariate statistical process controlT2 controlling diagramthreshing and redryinglamina structure
NETL
NSTL
万方数据
维普
