| 摘要 |
PURPOSE:To elevate a magnetic characteristic, and also to prevent generation of a roll pickup phenomenon, by supporting a steel plate by a floating system, and also setting plate pssing-through tension in a furnace, of a continuous steel band, to a specified value or below. CONSTITUTION:A continuous steel band 1 goes into a continuous annealing furnace, is continuously annealed in a heating zone 2, a soaking zone 3 and a cooling zone 4, and the steel band 1 in the furnace is supported by jetting floating gas from a floating blast box 8, to the lower face of the steel band 1. In this way, when the floating system is adopted as a furnace supporting means of the steel band 1, the steel band 1 can be made to pass through by dead low tension of <=0.3kg/mm.<2>. |
