blackmetИзвестия высших учебных заведений. Черная МеталлургияIzvestiya. Ferrous Metallurgy0368-07972410-2091National University of Science and Technology "MISIS"10.17073/0368-0797-2016-12-870-874blackmet-982Research ArticleМЕТАЛЛУРГИЧЕСКИЕ ТЕХНОЛОГИИMETALLURGICAL TECHNOLOGIESРАСЧЕТ СИЛ И МОМЕНТОВ СЕМИРОЛИКОВОЙ ПРАВИЛЬНОЙ МАШИНЫ ПРИ ПРЕДВАРИТЕЛЬНОЙ ПРАВКЕ СТАЛЬНОГО ЛИСТАCALCULATION OF STEEL SHEET’S CURVATURE UNDER PRELIMINARY FLATTENING ON THE SEVEN-ROLLER STRAIGHTENING MACHINEШинкинВ. Н.ShinkinV. N.

119049, Россия, Москва, Ленинский пр., 4 

Dr. Sci. (Phys.–Math.), Professor of the Chair of Physics

shinkin-korolev@yandex.ruНациональный исследовательский технологический университет «МИСиС»РоссияNational University of Science and Technology “MISIS” (MISIS)Russian Federation2016130120175912870874Copyright © Шинкин В.Н., 20172017Шинкин В.Н.Shinkin V.N.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://fermet.misis.ru/jour/article/view/982

Предложен математический метод определения сил и моментов при предварительной холодной правке толстого стального листа на семироликовой листоправильной машине. Расчеты позволяют определить реакции опор рабочих роликов, остаточные напряжения в стенке стального листа, долю пластической деформации по толщине листа и относительную деформацию продольных поверхностных волокон листа при правке в зависимости от радиуса рабочих роликов, шага между роликами листоправильной машины, величины обжатия листа верхними роликами, толщины листа, а также модуля Юнга, предела текучести и модуля упрочнения металла листа. Результаты исследований могут быть использованы на металлургических и машиностроительных заводах.

The mathematical method is proposed for determining the forces and bending moments at preliminary cold flattening of the thick steel sheet on the seven-roller sheet-straightening machine. The calculations allow us to determine the support reaction of working rollers, residual stresses in the wall of steel sheet, the proportion of plastic deformation on the sheet thickness and the relative deformation of the longitudinal surface fibers of the sheet under straightening depending on the rollers’ radius. It is also possible to establish the pitch between the straightening machines’ working rollers, the magnitude of sheet reduction by the upper rollers, the sheet thickness, as well as elastic modulus, yield stress and hardening modulus of the sheet metal. The results of the research can be used at metallurgical plants.

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The authors declare that there are no conflicts of interest present.