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| Effect of hot-rolling technology on slag entrapment and surface sliver defects for ultra-low carbon IF steel |
| LUO Yan-zhao1，JIAO Hui-li2，PANG Zai-gang1，LI Hai-bo1，NI You-jin2，ZHAO Lin2 |
1. Shougang Research Institute of Technology， Shougang Group Corporation， Beijing 100041， China
2. Shougang Company Limited Qian’an Iron and Steel Company， Qian’an 064404， Heibei， China |
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Abstract The slag entrapment and surface sliver defects were analyzed from the perspective of the hot rolling process for ultra-low carbon IF steel， the influences of different hot-rolling parameters were studied. The results show that the slag entrapment and surface sliver defects reduce with the increase of the hot charging temperature. A reduced incidence of slag entrapment and surface sliver defects happens with increasing holding time and lowering tapping temperature， but Minitab data analysis shows that this parameter has little influence. The hot charging temperature and the holding time in the reheating furnace have greater impact.
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Received: 27 May 2014
Published: 28 April 2015
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2015, Vol. 50 
