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| Effect of Optimization of Secondary Cooling System on the Quality Improvement of Continuous Casting Slab |
| XU Shao-pu |
| Iron and Steel Research Institute of Nanyang Hanye Special Iron and Steel Co.,Ltd., Nanyang 474500, Henan, China |
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Abstract In order to develop products and increase production capacity, Nanyang Hanye Special Steel Co Ltd improved secondary cooling system and changed pure water into foggy spray cooling. After the improvement, the qualification rate of surface quality of the microalloyed steel with Nb, V and Ti was increased from 93.8% to 92.5% without changing other conditions. The parameter in different zones of secondary cooling system was optimized and the qualification rate of surface quality was increased from 92.5% to 98.81%, achieving desired results.
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Received: 20 June 2011
Published: 16 January 2012
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2012, Vol. 31 
