铝铸轧辊套的热疲劳及材料合理选择  

Thermal Fatigue of Aluminum Cast-rolling Roller Shell and Proper Choice of Material

作　　者：盛春磊 李春治 刘新凯 朱英 

机构地区：[1]上海捷如重工机电设备有限公司,上海200232 [2]西南铝业(集团)有限责任公司,重庆九龙坡区401326

出　　处：《铝加工》2007年第4期14-17,共4页Aluminium Fabrication

摘　　要：简明扼要地分析了铝铸轧辊辊套内外表面的温度变化及辊套内热应力的形成及其变化规律,着重论述了辊套表面热裂纹的形成与扩展,提出了修正辊套表面热裂纹的措施及合理选择抗热疲劳辊套材料的要求,认为32Cr3Mo1V钢是一种较好的抗热疲劳裂纹的辊套专用材料。The temperature changes in the outside and inside surface of aluminum cast - rolling roller shell, the formation of thermal stress in shell and the regularity of change were briefly described in the paper. The formation and extension of cracks on shell surface were addressed in some detail, and the countermeasures and requirements for proper choice of shell material with thermal fatigue resis- tence were set forward as well as. 32Cr3MolV steel is regarded as a good material for roller shell.

关 键 词：铝铸轧辊辊套 温度梯度 热应力 热疲劳裂纹 辊套材料 

分 类 号：TG113.255[金属学及工艺—物理冶金]