冷轧辊的工作条件极为繁重,要承受很大的静载荷和动载荷,应设具有高的表面硬度、可塑性和耐磨性。我厂试制的450冷轧工作辊(参阅图1),其主要技术条件根据苏联国家标准ΓOCT3541-57的规定:轧辊经热处理后,工作表面的每项硬度值除边缘部分可较低外,A 级为 H_S 95～102,B 级为 H_S 90～94;辊颈表面硬度为 H_S 30～55;辊身表面在最终热处理 Cold roller working conditions are extremely heavy, to bear a great static load and dynamic load, should be set with a high surface hardness, plasticity and wear resistance. I plant trial  450 cold-rolled work roll (see Figure 1), the main technical conditions in accordance with the provisions of the Soviet Union national standard ΓOCT3541-57: roll after heat treatment, the surface hardness of each value except for the edge part can be lower, A grade H_S 95 ~ 102, B grade H_S 90 ~ 94; roll neck hardness H_S 30 ~ 55; roll body surface in the final heat treatment