NUMERICAL DETERMINATION OF THE HEAT FLUX DENSITY ON THE BASIS OF EXPERIMENTAL DATA OF A STEEL STRIP DEFORMED IN A PILOT CONTINUOUS CASTING AND DEFORMATION UNIT
This research aimed to determine the density of the heat flux supplied to the contact surface of the anvil based on the experimentally measured parameters of the combined steel strip process implemented on a pilot continuous casting and deformation unit. The heat flux density was determined based on the experimentally measured anvil temperature through solving a dynamic heat conduction problem. The problem was solved with the help of the finite element method in a 3D formulation using the ANSYS package. The initial and boundary conditions for solving the problem are given. For solving the dynamic heat conduction problem, the following conditions were taken as initial conditions: the initial temperature of the anvils in the continuous casting and deformation machine, the dimensions of the resultant strip and the steel grade, the strip withdrawal rate and the slab reduction time. The conditions for solving the dynamic heat conduction problem taken as the boundary conditions include the density of the heat flux, which is supplied to the contact surface of the anvil during slab reduction, and the effective heat transfer coefficient, the value of which was determined through experimental data. The average temperature of the anvil contact surface after slab reduction was determined by measuring the temperature of the anvils during an experimental study conducted on a laboratory-scale continuous casting and deformation machine at Urals Pipe Works. The temperature data was used for numerical simulation of the temperature regimes of the anvil to determine the density of the heat flux. The calculated temperature fields are given for four cross-sections of the anvil for the typical points. The authors established the regularities of temperature distribution across both the thickness of the anvil and the thickness of its contact layer when a continuous casting and deformation machine is used to produce steel sheets.