摘要
南钢根据沙特阿美技术规范要求及宽厚板5 m轧机装备特点,合理设计了冶炼成分及工艺流程,得到了成分均匀、组织优异的260 mm×2570 mm断面坯料。采用TMCP轧制工艺,超快冷冷却技术,获得细小均匀的以针状铁素体为主的细晶组织,开发的产品具有良好的力学性能及优异的低温冲击韧性。通过小批量轧制技术,确定了工业生产工艺,产品性能合格率高。南钢成为批量供应特宽幅X70M级管线钢板的工业产品基地。
According to the technical requirements of Saudi Aramco and the technical parameters of 5000 mm hot plate mill in NISCO,,the alloying design and process parameters had been deliberately selected,and thus producing 260 mm×2570 mm section blanks with uniform composition and excellent low-profile structure.Combing TMCP rolling process with ultra-fast cooling technology,fine and uniform fine-grained structure dominated by acicular ferrite had been achieved.The developed products have good mechanical properties and low temperature impact toughness.Through small batch rolling,production process technology was established.Now NISCO is capable of supplying extra-wide X70 M grade pipeline steel plates.
作者
翟冬雨
杜海军
姜金星
Zhai Dongyu;Du Haijun;Jiang Jinxing(Technology Research and Development Department,Nanjing Iron and Steel Co.,Ltd.,Nanjing 210035,Jiangsu,China)
出处
《钢铁钒钛》
CAS
北大核心
2020年第1期158-164,共7页
Iron Steel Vanadium Titanium
基金
国家重点研发计划(2017YFB0304900)。
关键词
管线钢
X70M
特宽幅板
针状铁素体
力学性能
pipeline steel
X70M
extra wide plate
acicular ferrite
mechanical properties
