CISDI has mastered the core technology of HSM process, equipment and automation system

All product quality data of the modernized 1,700mm hot strip mill of Jinan Steel Group meeting the requirement since October 2013, which represents the success of technical modernization for hot strip mill using Chinese proprietary core technology for process, equipment and automation control. As the EPC contractor, CISDI has mastered the core technologies for the entire hot strip rolling line.

The 1,700mm hot strip rolling line of Jinan Steel was put into operation in 2006, using ASP process and 135mm thick slabs, with designed annual production capacity of 250 million ton. To improve the product performance and expand the capacity to cater to the downstream procedures and the market, CISDI is contracted by Jinan Steel in 2011 to revamp the existing 1700mm hot rolling line on EPC basis, including installation of coil box and finishing mill F0, replacement of existing roll bending/shifting device for F1-F6, installation of step plate level adjustment for lower backup roll and installation of intensified laminar cooling, as well as updating of automation and control system for the entire line.

With joint efforts of all participating parties, the revamped hot strip rolling line successfully passed the hot test on September 12. The coils for the initial hot test was setup by L2 model on-line. The line is intended to steadily produce thin-gauge products with thickness at 1.5mm~1.8mm and produce feedstock coils for cold rolling mill. The product mix will be expanded to include high-strength steel. The control accuracy and stability of automation control and network system will be is greatly improved.