1780mm轧机支承辊置裂原因分析  

Reason Analysis of Cracking of 1780 mm Rolling Mill Backup Roll

作　　者：陈先毅 

机构地区：[1]二重集团(德阳)重型装备股份有限公司,四川618013

出　　处：《大型铸锻件》2015年第4期23-25,共3页Heavy Casting and Forging

摘　　要：一支1 780 mm轧机支承辊在使用现场放置时自然开裂。利用金相分析、扫描电镜分析等方法对断口取样进行研究,结果表明冶金缺陷和辊身较大的内应力是造成该支承辊置裂的主要原因。A backup roll of 1 780 mm rolling mill appeared cracks naturally, when it was placing in work site. By adopting the metallographic analysis and the scanning electron microscope analysis, the samples have been taken for study. The resuhs show that the main reasons of cracking are metallurgical defects and major internal stress of roller body.

关 键 词：1780mm轧机 支承辊 裂纹 

分 类 号：O657[理学—分析化学]