安钢2800 mm中厚板E级钢低温韧性研究  

STUDY ON LOW TEMPERATURE TOUGHNESS OF E GRADE 2800 mm MEDIUM PLATE STEEL OF ANGANG

作　　者：苏永刚 Su Yonggang(Anyang Iron and Steel Stock Co.LTD)

机构地区：[1]安阳钢铁股份有限公司

出　　处：《河南冶金》2022年第5期7-10,34,共5页Henan Metallurgy

摘　　要：根据目前安钢2800 mm中厚板E级钢生产存在的主要问题,通过试验跟踪,对残样断口形貌、金相组织等进行了分析,确定影响E级钢冲击韧性的主要因素,根据现有生产条件,通过降低钢中夹杂物、提高晶粒度等级、提高连铸二冷控制强度以改善铸坯芯部偏析等来改善E级钢冲击韧性,提高性能合格率,降低了改判损失。According to the main problems existing in the production of 2800 mm medium-thick plate E-steel of Angangj the port morphology and metallography of residual samples are analyzed through the test tracking,and the main factors affecting the impact toughness of E-steel are determined.According to the existing production conditions,the impact toughness of grade E steel can be improved by reducing the inclusions in steel,increasing the grain size,increasing the secondary cooling control strength of continuous casting to improve the segregation of billet core and so on,the qualified rate of performance is improved,and the loss is reduced.

关 键 词：热低温韧性 晶粒度 偏析 夹杂物 E级钢 

分 类 号：TG142.1[一般工业技术—材料科学与工程]