改善中厚板轧后超快冷均匀性的措施及其应用

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Abstract To improve the cooling uniformity of plate during ultra fast cooling process, the jet impingement heat transfer between hot steel surface and high-pressure cooling water was investigated. In addition, the headers of ultra-fast cooling system were designed and arranged rationally. A series of measures including the setting method of the upper header and water ratio, the speed masking method for head and tail of plate were adopted to improve the cooling uniformity along the thickness and length direction of the controlled cooling plate. The measures to improve the cooling uniformity were used on-line in some factory. The results show that the controlled cooling plate have a good cooling uniformity, and more than 95% of the measured temperature deviation from the target temperature is within ±25℃.

Received: 22 August 2011 Published: 27 June 2012

PACS:

TG335.5

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	YU Bing-Xin

Cite this article:

YU Bing-Xin. Application of the Measures to Improve the Cooling Uniformity of Ultra-Fast Cooling for Plate Mill[J]. Iron and Steel, 2012, 47(6): 51-54.

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http://www.chinamet.cn/Jweb_gt/EN/ OR http://www.chinamet.cn/Jweb_gt/EN/Y2012/V47/I6/51

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