Application of statistical methods to reveal and remove the causes of welding of coil laps upon annealing of cold-rolled steel strips


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The factors of the process of production of cold-rolled steel strips that promote and hinder the appearance of a coil lap welding defect upon annealing in bell-type furnaces are analyzed using statistical methods. The works dealing with this problem are analytically reviewed to reveal the problems to be studied and refined. The ranking of the technological factors according to the significance of their influence on the probability of appearance of this defect is determined and supported by industrial data, and a regression equation is derived to calculate this probability. The process of production is improved to minimize the rejection of strips caused by the welding of coil laps.

作者简介

E. Garber

Cherepovets State University

编辑信件的主要联系方式.
Email: mamz2011@mail.ru
俄罗斯联邦, Cherepovets

E. Diligenskii

Cherepovets State University

Email: mamz2011@mail.ru
俄罗斯联邦, Cherepovets

P. Antonov

PAO Severstal

Email: mamz2011@mail.ru
俄罗斯联邦, Cherepovets

D. Shalaevskii

Cherepovets State University

Email: mamz2011@mail.ru
俄罗斯联邦, Cherepovets

I. Dyatlov

PAO Severstal

Email: mamz2011@mail.ru
俄罗斯联邦, Cherepovets

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