Statistical Process Control Techniques In The Process Of Chemical Production

This article takes example of flow chemical industry to talk about how to real-time analyze, control and improve the quality of product. It changes the way of depending on the final check in the past, emphasizes the process supervise, all people participate in and preventing the quality fluctuation by scientific way. It brings full-scale benefits for the enterprise.The article analyze the quality fluctuations of some indexs of product such as viscosity, color and COOH by use of X-Rs flipping and cumulation control drawing. Enumerates some fluctuation situations and explains the reason. Because A plant has two closely related processes, it uses "two kind of quality diagnose ways" to analyze quality of product such as viscosity, thus improve the accuracy of judgment.Finally, the article analyze the reason that why the A plant hasn't put in practice of SPC and the way of how to actualize.