中国薄宽带钢无头轧制技术最新进展

doi:10.13228/j.boyuan.issn0449-749x.20230076

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Abstract The latest development of wide thin strip endless rolling technology in China in recent years is discussed. Firstly, the construction of endless rolling line for wide thin strip in China is briefly introduced.By 2023, China will have 11 endless rolling production lines with a capacity of 23.1 million t/a. Production line types include ESP、MCCR、DSCCR、QSP-DUE. China is the country with the largest production capacity and the most production line types of wide thin strip endless rolling in the world. Secondly, the technical integration innovation of Rizhao Steel for five endless rolling production lines, high-efficiency and low-cost production technology control mode, stable production control of thin/ultra-thin strip quality, carbon and sulfur control of high speed continuous casting and defect-free slab control, high precision, high quality, high homogeneity, thin/ultra-thin strip endless rolling stability control, progress in ferrite rolling of low-carbon/ extra low-carbon steel based on endless rolling line are mainly introduced. And the development and application of products such as extra-thin and wide strip steel coil, ultra-thin and ultra-wide strip steel coil, proportion of ultra-thin strip products, ultra-thin and ultra-high strength steel produced by endless rolling of Rizhao Steel, as well as the development of high speed continuous casting control, endless rolling roller long life control, etc. are introduced. Finally, the development of wide thin strip endless rolling technology is briefly summarized. Wide thin strip endless rolling has become an important aspect of steel production technology innovation, energy saving, reducing carbon emissions and green manufacturing; By secondary development and integrated innovation, some domestic steel enterprises have fully mastered the key core technology of wide thin strip endless rolling, and made remarkable achievements in the production and application of high quality ultra-thin and high strength wide thin strip; Endless rolled products form ultra-thin, high precision, high performance, high strength, high yield, high uniformity and low cost product characteristics and advantages. It has achieved remarkable results in structural lightweight, energy saving and reducing carbon emissions; Strengthening related process and mechanism research, continuously developing and applying high strength, high performance, low cost wide thin strip steel products, high speed continuous casting, high throughput, as well as the whole process integration and intelligent control technology, are still the future development topic of endless rolling technology.

Key words： wide thin strip endless rolling high speed continuous casting high-uniformity energy saving and carbon reduction green manufacturing

Received: 24 February 2023

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	Articles by authors
	KANG Yonglin
	ZHU Guoming
	CHEN Guijiang
	QIN Zhe

Cite this article:

KANG Yonglin,ZHU Guoming,CHEN Guijiang等. Latest development of wide thin strip endless rolling technology in China[J]. Iron and Steel, 2023, 58(7): 1-8.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20230076 OR http://www.chinamet.cn/Jweb_gt/EN/Y2023/V58/I7/1

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