高硬冷轧辊的工作条件是非常沉重的,一方面,工作时的轧辊表面与被轧冷钢件之间存在着大的表面摩擦力,促使轧辊表面激烈地被磨损;另一方面,它又受到钢件的冲击。因此作为高硬冷轧辊的钢种必须满足下列基本要求:1)高的表面硬度和深的可硬性,按照技术条件的要求,高硬冷轧辊的表面硬度(辊身表面)应大于90萧氏硬度单位,而硬度大于85萧氏硬度单位的有效淬火层深度不应小于轧辊辊身半径的3%;2)大的工作稳定性,即轧辊在工作中不容易产 High hard and cold roller working conditions are very heavy, on the one hand, the work of the surface of the roller and the cold rolled steel between the existence of a large surface friction, prompting the roller surface was fiercely worn; the other hand, it By the impact of steel. Therefore, as a kind of steel with high hard and cold roll, the following basic requirements must be met: 1) High surface hardness and deep hardness. The surface hardness (roll surface) of high hard and cold roll should be more than 90% Hardness unit, and the hardness greater than 85 Shore hardness unit quenching depth should not be less than 3% of the roll body radius; 2) large work stability, that roll in the work is not easy to produce