EXPERIMENTAL-STUDY OF LONG PRODUCT COOLING IN HOT-ROLLING

The cooling of flat and long products in hot rolling technology requir es precise information on the cooling intensity of sprays. These days, the technology focus changes from the demand on the determination of the final temperature to that of the final material structure. The fin al structure depends on the thermal and deformation regimes applied. T o design and control the cooling sections it is necessary to know the heat transfer intensity as a function of surface temperature, coolant pressure and speed of motion. The functions describing the cooling pro cess can be determined using a linear high speed stand. This paper pre sents the design of the experimental, linear high speed stand, its pos sibilities and it provides some examples of results. (C) 1998 Elsevier Science S.A. All rights reserved.