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| Schedule Free Rolling Technology of Ansteel 2150 ASP |
| XU Shi-shuai1,SHI Nai-an1,YAN Dong-yu1,HE An-rui2,ZHANG Hua1 |
1. Hot Strip Mill of Angang Steel Co., Ltd., Anshan 114021, Liaoning, China
2. National Engineering Research Center for Advanced Rolling, University of Science and Technology Beijing, Beijing 100083, China |
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Abstract In order to solve the problem of mutual influence and mutual restriction between steel-making, casting, and rolling, focusing on strip shape control, several techniques were presented, including developing LVC work roll and ASPB back-up roll and applying high-speed-steel work rolls and roll gap lubrication on the finishing mill, as well as rolling schedule dynamic planning. The result shows that the length of rolling with equal width can be up to 100km, and the bounce of width can be up to 300mm on the basis of high accuracy of crown and flatness control. It’s available to realize mixed rolling with different steel grade, different thickness and different width. The rate of direct charging can be more than 60% with total hot charging exceeding 85%.
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Received: 21 April 2011
Published: 20 March 2012
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2012, Vol. 47 
