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Title: Mathematical modelling of work piece heat transfer during rough and finish processing in a steel hot strip mill
Author: Tudball, A.
Awarding Body: University of Wales Swansea
Current Institution: Swansea University
Date of Award: 2006
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Temperature control is a key requirement for the production of quality steel strip. During hot rolling, various processes are carried out which improve surface and rolling characteristics but which also increase heat extraction from the slab or bar. Moreover, different hot mill configurations at different sites will give rise to different overall thermal behaviour. Temperature control is required to enable the basic properties of the steel strip to be achieved. Rather than concentrate on individual sections of the hot strip mill a custom-written thermal finite element model has been developed for Corus to stimulate the evolving temperature field in the slab and subsequent thinner bar over the entire hot rolling process. Localised cooling effects caused by hydraulic descale sprays, roll coolant, contact conduction, local atmospheric conditions, heat generation due to adiabatic heating of deformed material and rolling friction, constitute the main features of the model. Modelling of the temperature effects occurring throughout processing can then be used in the optimisation of process operations. This work describes both the practical approach and the numerical method used to develop the model and provides examples of simulations of different hot mill configurations.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Eng.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available