| 摘要 |
<p>A continuous annealing equipment that realizes elimination of temperature non-uniformity along the direction of width of steel strip on the exit side of a rapid cooling zone with gas jet cooling equipment and prevention of any occurrence of wrinkle pattern and stretcher strain of baking hardened steel sheet. The continuous annealing equipment for steel sheet, which includes at least a heating zone, a soaking zone and a rapid cooling zone, is characterized in that the rapid cooling zone has a gas jet cooling equipment and is provided at each of its entrance and exit with at least one pair of seal rolls, and that bridle roll units each composed of two or more bridle rolls are disposed on the front and back of the rapid cooling zone, and that the bridle roll unit on the back of the rapid cooling zone has two or more heating rolls the interior of each of which is provided with an induction heater, and that the winding angle of each of the heating rolls is 100°or greater while the sum thereof for all the heating rolls is 380°or greater.</p> |
