Исследования влияния химического состава чугунных прокатных валков на их механические свойства

Abstract

RU: Проведены исследования, которые направлены на установление влияния элементов химического состава валков марок СПХН и СШХН на их механические свойства. Получены уравнения регрессии, описывающие связь между химическим составом и механическими свойствами валков.

EN: Problem statement. Exit metallurgical complex of Ukraine on promising markets of Eastern Europe, Asia and Africa initiates production of high–quality products with desired properties and competitive in price indices. Customer requirements for the production of steel products with high levels of quality development and initiates the development of new approaches that in a short time in the factory to carry out their control. Assessment of quality solid metal castings, in particular rolling rolls represents a challenge in their production technology, which is periodic, and multiparameter multicriteria where quality roll influenced by many parameters of technology, and even small changes in some of them can lead to a significant change in their quality. Analyzing of the resent research. Study of the composition, structure and properties of bulk iron castings engaged many scientists. Here we mention the following local scientists over the past 70 years: M. G. Oknov, I. N. Bogachev, A. E. Torticollis, K. P. Bunin, Y. N. Taran–Zhovnir, G. I. Silman, A. A. Zhukov, A. P. Cheylyah, V. Z. Kutsova, I. M. Spiridonova, S. A. Firstov, V. I. Mazur, L. S. Raspberry, T. M. Mironov, S. V. Bobyr and others [1–7]. Analysis of the existing non–destructive testing quality characteristics rolls indicates that currently there is no deterministic method of prediction of their mechanical properties, based on the analysis of causality. Therefore, to date, the use of statistical methods based on the analysis allows research the degree of influence of technology parameters, including chemical composition, to obtain equations for the prediction of mechanical properties. Research objective. Explore the extent to which elements of the chemical composition of the roll marks SPHN SSHHN and their mechanical properties. Conclusions. Implementation of the approach outlined in the article allows to predict the mechanical properties of rolls and brands SPHN, SSHHN factory.