Advanced design of continuous furnace for hot stamping line

The paper presents advanced innovative design of continuous roller furnaces. These types of furnaces are generally used in hot stamping / press hardening lines. The design is focused on optimal heating layout, modern drives of rollers, new design of furnace’s input and output without movable parts and other items respecting the optimal technological and technical aspects. Also the technological functions like the dew point temperature regulation, oxygen rate regulation with permanent monitoring function are described. All results are based on the theoretical background of heat and mass transfer, confirmed by numerical FEM analysis and of course long term experience from real hot forming production.