目前国内外使用的普通轧辊,大多为整体铸造或锻造成型的,以自身断面尺寸、选材、热处理和制订合理工艺保证轧辊的强度与耐磨性。轧辊的正常破坏属于疲劳破坏,如不耐磨、裂纹、剥落、断裂等。而疲劳破坏起源于轧辊在交变应力作用下金属的基体组织内能不足造成的。李宗祥高级工程师提出了应力状态和安全系数转型理论,即轧辊工作的能量理论。当轧件变形能发生变化,轧辊内能不能与 At present, ordinary rollers used at home and abroad are mostly cast or forged into shape, with their own cross-sectional size, material selection, heat treatment and formulating a reasonable process to ensure the strength and wear resistance of the roller. The normal destruction of the roller belongs to fatigue damage, such as non-wear, cracks, spalling, fracture and so on. The fatigue damage originated in the roll under the action of alternating stress caused by the metal matrix can not be enough. Senior engineer Li Zongxiang put forward the stress state and safety factor transformation theory, that is, the energy theory of roll work. When the rolling deformation can change, the roller can not be with