冷轧超高强钢退火板形优化技术研究进展

doi:10.13251/j.issn.0254-6051.2022.11.040

摘要/Abstract

摘要： 简要介绍了连续退火机组的设备配置及发展概况,分析了连续退火机组冷轧超高强钢板形改进方向。针对板形问题,在退火过程板形演变机理分析基础上,从连退机组加热区板形优化、冷却区板形优化、平整区板形优化、张力制度优化、炉辊辊型优化等方面综述了目前超高强钢退火板形优化技术的发展情况。指出了来料板形、退火张力、退火工艺、快热快冷技术、沿带钢宽度方向温度均匀性、炉辊辊型、平整工艺等对连退机组板形的影响,为掌握超高强钢连退过程板形控制关键工艺技术、提升企业核心竞争力起到了重要的指引作用。最后还对连续退火的发展趋势进行了展望。

关键词: 超高强钢, 连续退火机组, 板形, 控制技术, 影响因素

Abstract: Equipment configuration and development of the continuous annealing line was briefly introduced, and the development direction for annealed strip flatness optimization technology of cold-rolled ultra-high-strength steel was analyzed. For the problem of strip flatness, based on the analysis of the evolution mechanism of flatness during annealing process, the flatness optimization technology from the aspects of heating zone flatness optimization, cooling zone flatness optimization, skin-pass zone flatness optimization, annealing tension system optimization and furnace roll profile optimization was summarized. The effect of incoming strip flatness, annealing tension, annealing process, rapid heating and cooling technology, temperature uniformity along the width of the strip, furnace roll profile and skin-pass process on strip flatness of continuous annealing line was pointed out, which played an important guiding role in mastering the key process technology of strip flatness control in the continuous annealing process of ultra-high-strength steel and improving the core competitiveness of enterprises. Finally, the development trend of continuous annealing technology was also prospected.

Key words: ultra-high-strength steel, continuous annealing line, strip flatness, control technology, influencing factor

中图分类号:

T-19
TG15

张理扬, 万照堂, 张文军. 冷轧超高强钢退火板形优化技术研究进展[J]. 金属热处理, 2022, 47(11): 230-237.

Zhang Liyang, Wan Zhaotang, Zhang Wenjun. Research progress of annealed strip flatness optimization technology for cold-rolled ultra-high-strength steel[J]. Heat Treatment of Metals, 2022, 47(11): 230-237.

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