Q195带钢生产中容易出现边裂缺陷,外观特征里带钢卷边部参差不齐,在一侧或两侧的边部呈连续或间断的树皮状或严重的锯齿状。这种缺陷产生的原因是:a.连铸坯边缘存在角裂纹、皮下气泡等缺陷;b.连铸坯坯边缘有夹杂;c.轧件边部温度过低,或轧制张力设定过大;d.连铸坯的硫、铜含量较高;e.轧制时的钢报脆性大。五大原因中连铸坯原因占了三个,可见连铸坯的控制非常重要。 Q195 strip prone to edge crack defects in the appearance of the characteristics of the curling edge of the band uneven in one or both sides of the edge of a continuous or intermittent bark or serious jagged. The reasons for this defect are: a. There are corner cracks on the edge of the slab, subcutaneous bubbles and other defects; b cast slab edges are mixed; c. Rolling edge temperature is too low, or the rolling tension set Large; d. Slab, billet higher copper content ;. e steel rolling brittle large. Among the five reasons, the reason for continuous casting slab accounts for three, showing that the control of continuous casting slab is very important.