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ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 26
SUMMARY:Baostrip®-the new strip casting&rolling process developed by Baowu Group
DESCRIPTION:Twin roll strip casting and rolling is one of typical near net shape steel manufacture process. Baostrip® for low carbon steel have made breakthrough progress and achieved remarkable results during past 20 years. Baostrip® has gone through two stages. The first phase, which took more than 10 years, involved understanding the effects of the process parameters, chemical composition, and inclusion of steel on the initial heat transfer, sub-rapid solidification, castability, phase transformation, structure, and mechanical performance. A pilot plant equipped with 1200-mm-wide twin-roll caster was built for developing side dam, nozzle, and casting roll. The liquid steel is supplied by a 15t electric arc furnace, ladle furnace and Vacuum Oxygen Degass. More than 300 heats were trialed and more data, experience, and knowledge were obtained. A variety of steel grades such as silicon steel, low-carbon steel, high-strength low-alloy steel, medium-carbon steel, and medium-Mn steel were successively trialed. A series of models were built to control the uniform solidification on the casting-roll surface and uniform wear of the side dam, as well as to minimize fluctuation of the casting pool level and stabilize the separation forces.The second phase commenced in 2012. An industrial demonstration production line was put into operation in 2014, and has made remarkable achievements. Last year, Baostrip® obtained the first construction contract of commercial strip casting and rolling plant. This paper summarizes the results we obtained in the industrialized demonstration plant, and introduces the new project, and analyses development direction and ways of strip casting and rolling technology in future.
CLASS:PUBLIC
DTSTART:20230615T145000
DTEND:20230615T151000
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