Physical and Chemical Geotechnologies

Purpose

Investigation of phenomenon of reverse impacts during the capture and exit of the strips from the rolls

Methodology

The studies were carried out through analysis of conditions and reasons for their formation and consideration of impact level compared to a static load

Findings

Characteristic oscillograms of transient processes are shown in the lines of the main drive of the rolling stands, when reverse impacts occur during the capture and exit of the strips from the rolls. The conditions and reasons for their formation are considered. The impact level is commensurable with the static load during rolling. A weak correlation is established between the maximum dynamic load when the strip is grasped by the rolls and the level of the return stroke. It is proposed to use the phenomenon of back blows for diagnostic purposes, in calculations for strength and durability.

Keywords: rolling mill, drive line, strip grip, output, back blows, diagnosis

References

1. Веренев В.В. Снижение динамических нагрузок и диагностики широкополосных станов в переходных режимах / В.В. Веренев // Никополь: СПД Фельдман О.О., 2014. – 203 с.
2. Диагностика и динамика прокатных станов / В.В. Веренев, В.И. Большаков, А.Ю. Путноки и др. // Днепропетровск. – ИМА-пресс. – 2007. – 144 с.
3. Большаков В.И. Технологические нагрузки листопрокатных станов / В.И. Большаков // "Динамика металлургических машин". – Труды Институт черной металлургии им. З.И. Некрасова НАН Украины. – М.: Металлургия. – 1969. – т. ХХХI. – С. 5-13.