Hot and cold strip mill refurbishments at ArcelorMittal Temirtau

ArcelorMittal Temirtau, Kazakhastan, has revamped a tandem cold rolling mill and the finishing stands of a hot strip mill. The work on the hot strip mill involved he geometrical re-alignment of the finishing stands by on site machining of the mill housings and the alignment of a brand new mill stand. The stands were stripped off the main components, such as wear plates, bending blocks, inter-stand rails and clamps, and the portable milling machines for vertical, horizontal and front surfaces. The improved roll cooling has proved to be highly beneficial in terms of longer roll lives, ddecreased surface defects and scratches and elimination of improper thermal crown of the rolls.