热轧辊表面经常发生电裂,每次修复孔型时必须将裂纹车去。长期使用后的轧辊裂纹加深,最终造成轧辊断裂。通常的轧辊冷却方法,是在轧辊上面装置冷却喷管,喷水落到轧辊的上部分(见图1)进行冷却轧辊。分析这种冷却 Hot roller surface often split, each repair hole must be cracked car go. Long-term use of roller crack deepening, eventually resulting in roll break. The usual roll cooling method is to install a cooling nozzle over the roll and spray water onto the upper part of the roll (see Figure 1) to cool the roll. Analyze this cooling