最近，日本钢管公司京滨厂开发了半高速钢轧辊。这种轧辊虽用传统的磨具（氧化铝系材质）不能研磨，但采用与金刚石具有同样结晶结构的、硬度约为传统磨具２倍的ＣＢＮ（立方氨化硼）磨具可进行研磨。该厂在带钢冷连轧机第５架轧机上试用了３种不同成分的半高速钢轧辊，这些轧 Recently, the Japanese steel pipe company Keihinbo developed a half-speed steel roll. Although this type of roll can not be ground with a conventional abrasive (alumina-based material), it can be ground using CBN (cubic boron nitride) abrasive which has the same crystal structure as diamond and has a hardness about twice that of a conventional one. The mill experimented with three different types of semi-high speed steel rolls on the fifth tandem mill of strip tandem rolling mills,