Development Of Numerical Methods And
Computer Code For The Mathematical Modelling
Of Work Piece Heat Transfer During Processing
Author(s)
A. Tudball & S. G. R. Brown
Abstract
A key quality requirement for the production of steel strip is temperature control.
During hot rolling, various processes are carried out which improve surface and
rolling characteristics but which 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 produced. Rather than concentrate on
individual sections of the hot strip mill a custom-written thermal finite element
model has been developed for Corus to simulate 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 and
contact conduction, and local atmospheric conditions have all been included.
Heat generation due to adiabatic heating of deformed material and rolling
friction has also been combined into the model.
Efficient modelling of the temperature effects occurring throughout
processing can be used in the optimisation of the process operations. This paper
will describe both the practical approach and the numerical methods used to
develop the model and examples of simulations of different hot mill
configurations will be described.
Keywords: finite element, hot rolling, steel, heat transfer.
Keywords
finite element, hot rolling, steel, heat transfer.
Related Book
Other papers in this volume
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