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摘自《神户製鋼技報》,1993,1,109—112 日本神户钢铁公司加古川厂热带精轧机的前段轧机(F_1～F_2)工作辊使用耐磨性优良的高铬轧辊。随着轧制量的增加,轧辊表面形成以FeO为主要成分的黑色铁皮。该铁皮很硬,可对轧辊母材表面起保护作用。然而,在轧制过程中,黑皮受到局部磨损和产生剥落时,引起轧辊表面粗糙。一般通过减轻轧制载荷,使剥落部分再生黑皮。但有时局部剥落进一步发展而成为沿轧辊圆周方向连续的带状剥落。这会使钢材表面凸凹不平,凸出部分产生铁皮后,经后段轧机轧制就形成鳞皮疤缺陷。但在实际操作中,
From KOBE STEEL TECH, 1993, 1, 109-112 The work rolls of the front-end rolling mill (F_1-F_2) of the hot strip mill at Kakogawa Plant in Kobe, Japan, use high chromium rolls with excellent wear resistance. As the amount of rolling increases, the surface of the roll to form a black iron with FeO as the main ingredient. The metal is very hard, can play a protective role on the roll base metal surface. However, when the black leather is locally worn and peeled off during rolling, the roll surface is caused to be rough. Generally by reducing the rolling load, so that the exfoliation of the black skin regeneration. In some cases, however, the local peeling may further develop and become continuous ribbon-shaped peeling along the circumferential direction of the roll. This will make the surface of the steel rough, convex part of the resulting sheet metal, the rolling mill after the formation of scale scars defects. However, in practice,