不锈钢保温杯内胆水胀开裂原因分析  

Fracture Analysis on Vacuum Cup of Stainless Steel

作　　者：吴玉红[1] 王俊海[1] 张爽[1] 王玉雷[1] 刘明[1] 

机构地区：[1]山东泰山钢铁集团有限公司,山东莱芜271100

出　　处：《四川冶金》2014年第3期61-65,共5页Sichuan Metallurgy

摘　　要：CrMnN系不锈钢冷轧板焊管后,通过水胀加工形成保温杯内胆,而在加工过程中发现一批焊管存在水胀开裂现象。为了找出原因,本文对冷轧原料板、水胀开裂与未开裂样品进行取样,通过宏观分析、金相组织分析、断口分析找出了导致水胀开裂的主要原因,即:原料板夹杂物严重,且组织中显微气泡较多导致的。The cracking was appeared of CrMnN series stainless steel pipe when water swelling for vacuum cup. In order to find out the cause of cracking, such as macroscopic analysis,microstructure analysis and fracture analysis were used to analyze the raw hoard and cracked specimen. The results show that it is caused by inclusions and microscopic bubbles of the raw board.

关 键 词：胀形系数 夹杂物 晶粒度 

分 类 号：TG115[金属学及工艺—物理冶金]