Rolling Process and Microstructure & Properties of Thin Gauge Ultra-high Strength Strip Manufactured by Wisco CSP Line

摘要：

　　The process and technology characteristics of Wisco CSP line were introduced in this article,by optimizing continuous casting and slab quality controlling,using 1180 ℃ tapping temperature and 850-920 ℃ finishing rolling temperature,the mechanical properties of thin gauge ultra-high strength strip were analyzed based on different cooling modes and coiling temperatures.The production results show that the head continuous cooling mode was helpful to grain refinement,higher coiling temperature was beneficial to the sufficient dispersed precipitate fine TiC particles,and 70% of the TiC particle size is below 20nm causing significant precipitation strengthening.By optimizing cooling mode and coiling temperature,500MPa,600MPa and 700MPa strength grade strips with 1.2-6.0mm thickness were developed successfully.The product of Wisco CSP line have been used in the container and large automobile manufacturing,results show that the product of Wisco CSP line could meet the lightweight and environmentally friendly demands of the marketing.

关键词： CSP thin gauge strip ultra-high strength steel laminar cooling precipitation strengthening

作者: ZHANG Chao CHEN Liang ZHU Shuai SONG Bo KANG Yong-lin

作者单位: Wuhan Iron and Steel Company Limited,Wuhan 430080,Hubei,China School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100

会议类型: 国际会议

会议名称: Asia Steel International conference 2012(第五届亚洲钢铁大会)

会议地点: 北京

会议语种:英文

页码: 1-4

在线出版日期: 2012-09-23（万方平台首次上网日期，不代表论文的发表时间）