一、概述随着工业的发展,对钢、铝、铜的冷轧产品,在数量上要求越来越多,在质量上要求越来越高,特别是尖端科学对产品的质量要求就更高,因而对冷轧辊的质量要求就相应地提高了。冷轧辊的质量不好,不但要影响轧辊本身的使用寿命,更重要的是影响产品质量。例如,轧辊表面的硬度不均匀,就会使产品的表面出现斑点;淬硬层不够深,就会使轧辊的使用寿命降低。目前,我国各大厂使用的冷轧辊大部分由日本进口,国内 I. Overview With the development of industry, the cold-rolled products of steel, aluminum and copper are more and more in quantity and higher and higher in quality. In particular, the cutting-edge sciences require higher quality products , So the quality requirements of the cold roll increased accordingly. The quality of cold roll is not good, not only to affect the life of the roll itself, more importantly, affect product quality. For example, the unevenness of the surface hardness of the roll causes spots on the surface of the product; the hardened layer is not deep enough to reduce the useful life of the roll. At present, most of China’s major cold roll used by Japan imported, domestic