以试验为基础,对同一罩式炉炉台冷轧08A l钢带的退火周期进行多点温度测量。分析退火温度对再结晶的影响。得出各阶段钢卷温度分布规律:钢卷退火时卷心和外圈为热点,卷中部为冷点,为了保证钢带良好的冲压性能,要适当调整罩式炉的加热速度和保温时间。 Based on the test, multi-point temperature measurement was performed on the annealing cycle of the 08A l strip of the cold rolled steel of the same hood furnace. The effect of annealing temperature on recrystallization was analyzed. The temperature distribution law of the coil was obtained at each stage. The coil core and the outer ring were hot spots when the coil was annealed, while the middle part of the coil was a cold spot. In order to ensure the good stamping performance of the strip, the heating speed and holding time of the bell furnace should be properly adjusted.