Impurity elements of Cu, Ni, Sn and Cr have been added to a model low-carbon strip steel mimic the levels that could arise due increased scrap recycling during production. The microstructure tensile properties base composition impurity compositions after thermomechanical processing, consisting hot rolling simulated coil cooling, investigated. addition impurities results in lower bainite fractio...

This paper presents an optimization approach to deal with the problem of minimizing the hot rolling time of a steel slab. Unlike traditional approaches, this work also considers the chemical composition of the steel slab as a parameter, allowing the automatic setup for different steels of the hot rolling mill. To validate the approach discussed here, a six-stand rolling mill is modeled as an op...

The most important purpose of cold rolling processes, in addition to obtaining appropriate mechanical features, is to achieve very low and more precise thicknesses’, the issue that is not possible in hot rolling processes. Today, most cold rolling lines designed continuously and usually consist of 4 to 6 fourroller rolling rack. Finished surface of obtained sheets of cold rolling is Harder and ...