Method and device for cooling hot-rolled profiled sections

摘要

In a method for cooling hot-rolled profiled sections from the rolling heat, wherein the profiled sections are formed of section parts of different mass, wherein, by using measuring-technological means in cooperation with a computer with the aid of a computing program, the quantity of heat to be proportionally removed from the different section parts in accordance with their mass and temperature and the amount of cooling medium required therefor are calculated and controlled, the course of temperature for the rolling stock in the rolling mill is simulated already before the actual rolling and cooling process by performing several simulation calculations by varying the cooling parameters in the simulation calculation to obtain calculated parameters. The actual values are measured upstream and downstream of the cooling stretch. The adjustments of the desired cooling process are controlled based on the calculated parameters obtained from the simulations and the actual values measured upstream and downstream of the cooling stretch. A device for performing the method has a closed active loop of five linked functional units.