新一代TMCP技术的发展  

Development of the New Generation of TMCP Technology

作　　者：王国栋[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,辽宁沈阳110004

出　　处：《中国冶金》2012年第12期1-5,共5页China Metallurgy

摘　　要：以自主研发的冷却速率可调(空冷至超快速冷却无级调整)、冷却温度精确控制的先进冷却技术和装备为手段,对占钢材总量95%以上的热轧钢材,根据不同钢材成分、性能要求和相变规律设计相应的冷却路径和冷却过程控制参数,进行钢材热轧和冷却过程中的微观组织有效调控,实现细晶强化、纳米析出强化、相变组织强化等各种强化机制的综合强化,充分挖掘钢材的潜力。开发的工艺技术、冷却装备目前在热连轧、中厚板、H型钢、棒材等生产过程中转化应用,开发出系列的减量化钢材产品。与传统的控制轧制和控制冷却技术相比,节省钢材合金用量30%以上,或提高钢材强度100～200MPa以上,大幅度提高冲击韧性,节约钢材使用量5%～10%,节能10%～15%。在上述工作的基础上,该技术已经列入《产业关键、共性技术发展指南(2011年)》《钢铁工业"十二五"发展规划》和《产业结构调整指导目录(2011年本)》等国家文件。By means of advanced cooling system （cooling rate flexible adjusted and cooling temperature accurately controlled）, the cooling route and process parameters are set up for adjusting the microstructure of hot rolled steels according to the materials chemistry and property requirement, so that the synthetic strengthening including the grain refinement, precipitation, and transformation strengthening is carried out and the potential of steels is re- leased. The developed technology and equipment are now applying to the production of hot strip, plate, H-beam, bar for producing resource-reduction production. Compared with conventional TMCP, the new generation TMCP can save amount of alloy elements about 30%, or enhance the strength of steels about 100~200 MPa or more, and improve the ductility, so that the amount of steel used will be saved for 5G ~10%, and the energy used will be saved for 10%- 15 %. The technology was listed in Guiding to the Key Common Technology of Industry 2011, De- velopment Plan of Iron and Steel Industry 2011--2015 and Catalo~ of Structure Adiustment of Incdustrv 2011.

关 键 词：轧钢技术 新一代TMCP 超快速冷却 综合强化 减量化 

分 类 号：TG335[金属学及工艺—金属压力加工]