| 摘要 |
PURPOSE:To uniformly heat slabs or blooms when they are introduced into a heating furnace in plural lines and heated at the same time, by placing plural partition walls in the furnace to divide the furnace into plural sections and regulating the temps. of the sections. CONSTITUTION:When slabs 3a, 3b are introduced into a heating furnace 1 and heated with plural burners 4, four partition walls 7a, 7b, 7c, 7d are suspended from the ceiling 1b of the furnace 1 in the slab conveying direction to divide the furnace 1 into five sections A, B, C, D, E. The temp. of the sections A, C, E is made lower than the temp. of the central sections B, D by the shadows of the walls 7a-7d, and the radiant heat is reduced. Accordingly, a temp. rise of each of the slabs 3a, 3b at both ends where the temp. is liable to rise is inhibited, and the temp. difference between both ends and the central part is reduced to <=15 deg.C, so the whole slabs are uniformly heated. |
