最近，日本各大钢铁公司都在热带精轧机上扩大高速钢轧辊的使用率。川崎钢铁公司在知多厂用生产成本较低的离心铸造法制造高速钢轧辊，并在千叶厂和水岛厂的热带轧机上使用。其使用结果如下：①轧辊单耗降低。千叶厂第二热轧厂的Ｆ１、Ｆ２精轧机原采用高铬钢轧辊，水岛厂热带 Recently, each of Japan’s major steelmakers has expanded the use of high speed steel rolls on tropical finishing mills. Kawasaki Steel manufactures high speed steel rolls at Chita Works using centrifugal casting processes with lower production costs and at the hot rolling mill at Chiba Plant and Mizushima Plant. The use of the results are as follows: ① roll unit consumption reduced. Chiba Plant’s second hot-rolled plant F1, F2 finishing mill originally used high-chromium steel roll, water island plant tropical