轧辊磨损机理(二)

• 作 者: 关本靖裕 冯志炳
• 机 构: 武钢钢铁研究所 日
• 出 处: 冶金设备
• 发表日期: 1982年06期
• 关键词: 轧辊 轧辊磨损 热龟裂 初轧机 初轧方坯 热轧轧辊 弯曲应力 孔型 磨损量 半钢轧辊

五、热轧轧辊的磨损 (一)初轧机用轧辊 该机负担把钢锭轧制成板坯、方坯等任务,故承受很高的轧制载荷和热负荷,轧辊上发生粗的热龟裂。由于反复弯曲应力而使热龟裂沿圆周方向发展,在接近最小使用直径之前即折断。但为了满足这种使用条件,材料硬度却受到限制,磨损量也大。还有,由于初轧的性质,对磨损的容限虽较宽,但具有孔型的初轧方坯轧辊,孔型侧壁的磨损仍较严重。

Fifth, the hot roll wear (a) of the rolling mill roll The burden of the machine to the ingot rolling slab, billet and other tasks, it is subject to high rolling load and heat load, the roll occurred on the hot cracking . Hot cracking due to repeated bending stresses develops in the circumferential direction and breaks before approaching the minimum used diameter. However, in order to meet the conditions of use, the material hardness is limited and the amount of wear is also large. Also, due to the nature of the bloom, the tolerance to wear is wide, but the wear on the sidewalls of the pass-type sidewalls is still severe with the bloom-type bloom slab.