Manufacturing Technology 2012, 12(2):260-263 | DOI: 10.21062/ujep/x.2012/a/1213-2489/MT/12/2/260

Investigation of the non-uniform temperature distribution on the metallic charge length during round bars rolling process

Piotr Sygut¹, Konrad Laber², Stanisław Borkowski¹

¹ Politechnika Częstochowska, Wydział Zarządzania, Materiałowej i Fizyki Stosowanej, Armii Krajowej 19b, 42-200 Częstochowa

² Politechnika Częstochowska, Wydział Inżynierii Procesowej, Materiałowej i Fizyki Stosowanej, Armii Krajowej 19b, 42-200 Częstochowa

Metallic charge heating before rolling process is very important stage of technological process of bars rolling in continuous rolling mills. Achieve of requires metallic charge temperature and permissible temperature difference on its length depends on metallic charge heating method and using of heating furnace. Main reason of form a big temperature differences on the metallic charge length in case of walking beam furnaces is disturbance their correctly work through seal wear between constant and moving elements of furnace hearth. The paper presents results of experimental investigation the non-uniform temperature distribution on the metallic charge length during round bars rolling. Thermovision monitoring were carried out during 70mm-diameter plain round bars rolling process in continuous shape mill D370 in one of industrial plant. Constructional steel S355J2G3 (according to DIN St 52-3) was used for the research. For the temperature measurement the ThermCAM SC640 thermovision camera was used.

Keywords: thermovision investigation, charge heating, non-uniform temperature distribution, round bars rolling process

Published: December 1, 2012  Show citation