白兴红,傅万堂,郭峰,赵席春,王大鹏,赵德利

• 1:燕山大学亚稳材料制备技术与科学国家重点实验室
• 2:材料科学与工程学院
• 3:天津重型装备工程研究有限公司
• 4:中国第一重型机械股份公司

摘要(Abstract)：

差温热处理是决定支承辊工作层组织、应力分布和使用性能的关键工序。为精准控制宽厚板轧机用Cr3钢支承辊辊身淬硬层深度以进一步提高其寿命周期内的服役性能，利用ABAQUS有限元模拟软件计算了支承辊在差温热处理过程中的温度场分布，分析了距离辊身不同深度处的温度与显微组织演变，预测了差温处理过程中辊身淬硬层的深度。结果表明：当加热温度达到840℃及以上时，Cr3钢可获得耐磨性较佳的非珠光体组织；Cr3钢支承辊实验件的淬硬层深度达110 mm,表面硬度达到55 HSD以上，且距离表面110 mm深处的硬度降低不大于4 HSD;淬硬层深度的理论预测结果与实测结果吻合较好，可以实现支承辊淬硬层深度的精确控制，指导Cr3钢支承辊差温热处理工艺制定。

关键词(KeyWords)： Cr3钢支承辊;差温热处理;温度场;淬硬层深度

Abstract:

Keywords:

基金项目(Foundation): 河北省高端钢铁冶金联合基金项目(E2020203195)

作者(Author): 白兴红,傅万堂,郭峰,赵席春,王大鹏,赵德利

DOI: 10.13289/j.issn.1009-6264.2023-0555

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