Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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STATISTICAL METHODS OF CONTROL IN INDUSTRY

Vildanov R.G. 1 Kapustin G.V. 1 Kryuchko E.Y. 1
1 Ufa State Oil Technical University branch in Salavat
The article considers the use of statistical controls cards in the control system polyethylene production at low pressure and ethylene, which results in the percentage of low-quality constituent in the resulting product. In this paper we analysed daily quality by means of that we determined an array of optimal parameters which give a product yield was of the best quality in certain time period. There are also X-R control charts plotted that help to determine control boundaries of the dispatch state. Correlation between current process parameters of polyethylene producing and parameters of deviations on the days of yield of obtained products was established (irregularities). The priority of regulation was studied.