PT Journal AU Sygut, P Laber, K Borkowski, S TI Investigation of the non-uniform temperature distribution on the metallic charge length during round bars rolling process SO Manufacturing Technology Journal PY 2012 BP 260 EP 263 VL 12 IS 2 DI 10.21062/ujep/x.2012/a/1213-2489/MT/12/2/260 DE thermovision investigation; charge heating; non-uniform temperature distribution; round bars rolling process AB 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. ER