论文部分内容阅读
论述了热轧过程中球墨铸铁复合轧辊的掉皮破损属于疲劳脆性断裂的原因。介绍了该类轧辊的温度、应力状态、临界裂纹尺寸及内部质量情况。并应用断裂力学理论分析了掉皮破损的成因。提出了减少掉皮破损,延长使用寿命的途径。
Discussed the hot rolling process of ductile iron composite roll off the peel fatigue fatigue brittle fracture reason. The temperature, stress state, critical crack size and internal quality of the rolls are introduced. Fracture mechanics theory is applied to analyze the causes of the skin loss. Proposed to reduce the skin damage, to extend the service life of the way.