ROLLS FOR DISPOSING AT ENTRY SIDE OR EXIT SIDE OF QUENCHING ZONE OF CONTINUOUS ANNEALING FURNACE AND QUENCHING ZONE UNIT USING ROLLS

摘要

PURPOSE: To provide rolls for using at the front and the rear parts of a rapid- cooling zone in a continuous heat treatment furnace for performing the heat treatment to a steel strip, and a rapid-cooling zone facility. CONSTITUTION: The roll for using at the front and the rear parts of the raip- cooling zone in the continuous heat treatment furnace has a profile regulated with the following formulas. Lc = 0.7xWmin, R=-0.1x10-3 to +0.2x10-3, TR = 20 wherein, Vc: the length (mm) of a flattened part, Wmin: the minimum width (mm) of the hoop steel, R: the gradient in the tapered part, TR: the curvature radius (m) at the boundary part of the flattened part and the tapered part.