Patent ID: 6860950

Claim:
A method for cooling a hot-rolled material having a rolled-material cross section in a cooling line, comprising the following steps: a starting temperature is recorded for a rolled-material location upstream of the cooling line, a temporal quantitative coolant profile is determined on the basis of a cooling-line model and predetermined desired properties of the rolled material, a coolant is applied to the rolled-material location in accordance with the temporal quantitative coolant profile which has been determined, and an expected temporal temperature profile of the rolled material at the rolled-material location across the rolled-material cross section is determined on the basis of the cooling-line model and the temporal quantitative coolant profile, wherein a heat conduction equation of the following form ∂ e ∂ t - div ⁡ [ λ ⁡ ( e , p ) ρ · grad ⁢ ⁢ T ⁡ ( e , p ) ] = 0 where e is the enthalpy, λ the thermal conductivity, p the degree of phase transformation, ρ the density and T the temperature of the rolled material at the rolled-material location and t is the time, is solved in the coolant-line model in order to determine the temperature profile in the rolled material.