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Temperature and Property Control of High Strength Steel in Hot Strip Mills  

Park, Cheol-Jae (대구대학교 기계자동차공학부)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.20, no.6, 2011 , pp. 817-823 More about this Journal
Abstract
This paper proposes a cooling stop temperature control(CST) and a phase transformation control(PTR) which aim at obtaining the uniform temperature and quality along the longitudinal direction of the high strength steel on the run-out table(ROT) process. The problems of the temperature control are analyzed for the conventional steel and the new control concepts are derived from a time-temperature transformation(TTT) diagram. The proposed control technologies are verified from the simulation results under the temperature prediction model by the heat transfer governing equation, and the temperature estimation simulator. It is shown through the field test of the hot strip mills that the phase transformation ratio of the high strength steel is considerably improved by the proposed temperature controls.
Keywords
Hot strip mills; Temperature control; Phase transformation; Run-out table; Cooling stop; High strength steel;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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