Application of high-speed continuous casting technology for low carbon steel slab in Masteel
DENG Yong1, YANG Li-bin2, WANG Cheng-yi2
1. No.4 Steelmaking and Rolling General Plant, Masteel, Ma'anshan 243000, Anhui, China; 2. Metallurgical Department, Central Iron and Steel Research Institute, Beijing 100081, China
Abstract：In order to solve the slab quality problem under the condition of high casting speed in further, Masteel has carried out the research and development of high-speed continuous casting technology for low carbon steel slab. Through the use of high-efficiency continuous casting anti-sticking technology, high-efficiency and strong cooling mold control technology, low viscosity mold powder optimization control technology, nozzle clogging control technology, dynamic secondary cooling solidification control technology and other technical measures, the technical problems such as uneven solidification of billet shell, slag curling in mold and billet quality under the condition of high drawing speed are solved. The casting speed can be steadily increased to 1.8 m/min, and the casting time can be reduced by 2.5 min after the casting speed of low carbon steel with section 1 200 mm(thickness is 230 mm) is increased from 1.6 to 1.8 m/min. In addition, the average number of continuous casting heats can reach more than 6 heats. After the technical improvement, the casting cycle is effectively shortened and the production efficiency is improved.
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2022, Vol. 41 
