微合金化重型热轧H型钢横向低温冲击稳定性研究与控制  

Research and Control on Transverse Low Temperature Impact Stability of Micro Alloyed Heavy Hot-Rolled H Section

作　　者：沈千成 卞恺 唐成伟 陈辉[1] 圣立芜 李从增 孙晓明 Shen Qiancheng;Bian Kai;Tang Chengwei;Chen Hui;Sheng Liwu;Li Congzeng;Sun Xiaoming(Ma'anshan Iron&Steel Co.,Ltd.,Ma'anshan Anhui,243000,China)

机构地区：[1]马钢股份公司,安徽马鞍山243000

出　　处：《安徽冶金科技职业学院学报》2024年第3期4-6,共3页Journal of Anhui Vocational College of Metallurgy and Technology

摘　　要：对重型热轧H型钢低温冲击性能的影响因素进行了分析,结果表明,重型H型钢的加热温度及轧制温度不合理导致内部晶粒不均匀是引起低温冲击性能不合格的主要原因。通过现场工艺的优化,改善了重型热轧H型钢的低温冲击韧性,提高了产品合格率。Analysis were conducted on the factors affecting the low-temperature impact performance of heavy hot-rolled H section steel.The results showed that the main reason for the unqualified low-temperature impact performance of heavy H section steel is the uneven internal grain size caused by high rolling temperature and high heating temperature.Through on-site process optimization,the low-temperature impact toughness of heavy hot-rolled H section has been improved,and the product qualification rate has been increased.

关 键 词：低温冲击性能 重型H型钢 晶粒尺寸不均 

分 类 号：TG142.1[一般工业技术—材料科学与工程]