1.前言80年代初,欧洲即开始用高铬钢作为热轧辊的工作层。立式离心设备的逐渐大型化使这种材料的应用成为可能。这种材料具有优良的抗热裂性能。当前,欧洲和美国的带钢热轧机粗轧机架大部分使用这种新型轧辊,日本钢铁工业对欧洲的这一新发展也表现出了极大的关 1. Introduction In the early 1980s, Europe began to use high-chromium steel as the working layer of hot roll. The gradual enlargement of vertical centrifugal equipment makes the application of this material possible. This material has excellent hot cracking resistance. Currently, most of this new roll is used for roughing stands for strip hot-rolling mills in Europe and the United States, and the Japanese steel industry has shown a great deal of this new development in Europe