迁钢2160mm超快冷工艺下X70管线钢减量化工艺研究及应用  

RESEARCH AND APPLICATION OF LOW-COST ROLLING TECHNOLOGY OF X70 PIPELINE STEEL UNDER ULTRA- FAST COOLING FOR QIAN STEEL 2160 mm PRODUCTION LINE

作　　者：赵金华[1] 王学强[1,2] 赵林 唐帅[1] 袁国[1] 邸洪双[1] 

机构地区：[1]东北大学,轧制技术及连轧自动化国家重点实验室 [2]首钢股份迁安钢铁公司

出　　处：《河南冶金》2014年第3期18-20,42,共4页Henan Metallurgy

摘　　要：针对14.2 mm X70管线钢,采用超快冷工艺方法,研究了节约型成分设计条件下,轧后冷却制度对14.2 mm X70管线钢显微组织及力学性能的影响。研究表明,在降低Nb 20%~30%情况下,利用轧后超快冷能够获得理想的X70显微组织及力学性能,并获得了14.2 mm X70合理的减量化轧制工艺。工业化大批量生产实践表明,超快冷下减量化14.2 mm X70管线钢力学性能良好稳定,很好地满足了生产需求。For 14. 2 mm X70 pipeline steel,the ultra- fast cooling technology was used combined with the economizing chemical composition design. The influence of cooling path on 14. 2 mm X70 pipeline steel microstructure and mechanical properties were studied. The results showed that the ideal microstructure and mechanical properties of X70 pipeline steel could be gained by ultra- fast cooling system for a X70 pipeline steel with decreasing 20%- 30% Nb content. The reasonable low cost rolling technology was achieved for 14. 2 mm X70 pipeline steel. Industrial application results showed that,the mechanical properties were stable for low cost 14. 2 mm X70 pipeline steel under ultra- fast cooling system and could meet the production requirements.

关 键 词：热轧板带钢 超快冷 X70管线钢 减量化轧制 工艺研究 

分 类 号：TG335.7[金属学及工艺—金属压力加工]