This book summarizes the formation of solidification defects in continuous casting strand and the process mechanism of improving central segregation, porosity and shrinkage under solidification end reduction. The behavior rules of shell deformation, crack initiation and propagation, solute transport, shrinkage cavity closure, microstructure refinement and evolution during solidification end reduction process were systematically expounded. It introduces how to realize the accurate, efficient and stable implementation of the solidification end reduction in the production process, and the design and development of key equipment. Finally, taking the specific production lines of Baosteel and Panzhihua Iron and Steel Co., Ltd. as examples, the industrial application and effect of solidification end reduction technology are listed.

Introduces a technology for the solidification end reduction Presents Industrial application and effect of solidification end reduction Shares insights into the formation of solidification defects in continuous casting billet

Autorentext

Prof. Cheng Ji is a young scholar of the Yangtze River scholars of the Ministry of Education, and is selected as Revitalization Talents Program and Millions of Talents in Liaoning Province. Prof. Jicheng focus on the high efficiency continuous casting process and equipment, casting - rolling integration research. Presided over the National Natural Science Foundation of China, National Key Research and Development Program sub-projects, international works and school-enterprise works 20 projects. Four academic aborigines and textbooks were published, 100 academic papers were published, and 50 patents for invention were reported. 1 National Science and Technology Award 2, 8 Provincial and Ministerial Science and Technology Awards 4.

Prof. Miaoyong Zhu is the winner of the National Fund for Outstanding Youth Science (2009), the Special Professor of Yangtze River Scholars of the Ministry of Education (2011), and the State has a prominent contribution to young and middle-aged experts enrolled in the national Million Talent Project (2013). Professor Zhu Miaoyong focus on in the research of high-quality steel smelting, high-efficiency continuous casting and metallurgical reaction engineering. Presided over national major equipment localization, national key research and development plan, national outstanding youth science fund, national natural science fund key and enterprise major cooperation projects. Published 8 academic monographs and translations, published 500 papers, won 1 national second prize for progress in science and 16 provincial ministerial awards for science and technology (7 first prize). The country 's first new engineering projects were hosted and implemented, with one national second prize for teaching results and three provincial and ministerial first prizes.

Associate Professor Rui Guan, as an outstanding young talent in Anshan City, focuses on the numerical simulation of the solidification process in multiphase flow and the quality control for steel, presided over 6 projects, including the National Natural Science Foundation of China, 2022 Chunhui Program Collaborative Scientific Research Project, and the Doctoral Start-up Foundation of Liaoning Province. At present, 41 academic papers were published (which have been cited over 170 times in total), and 20 patents for invention were reported. As the sixth key contributor, he was awarded the Second Prize of Liaoning Provincial Science and Technology Progress Award in 2023.

Inhalt

Introduction.- The Flow Properties and Constitutive Models Of Continuous Casting Strand For Reduction Process.- Deformation Behavior and Crack Risk During Heavy Reduction Process.- Closure of Internal Porosity in Continuous Casting Strand During Heavy Reduction Process.- Solute Transport Law of Continuous Casting Billet During Reduction Process.