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| Research on Controlling Profile and Flatness of High Strength Pipeline Steel in Hot Rolling |
| SHAO Jian1,HE Anrui1,YANG Quan1,SHI Naian2 |
| 1. National Engineering Research Center for Advanced Rolling, USTB, Beijing 100083, China; 2. Hot Strip Mill Plant of An Shan Iron and Steel Company, Anshan 114021, Liaoning, China |
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Abstract With the wide use of strength pipeline steel, the profile and flatness of high strength pipeline steel plate becomes a subject of concern.Due to high strength of pipeline steel, low finishing temperature and great rolling force on each stand, the shape of the product is difficult to control. However, by use of LVC work roll and relevant work roll shifting and banding technology on upstream stands from F2 to F4, and long stroke roll shifting system on down stream stands, varying contact rolling technology on all the stands, the profile and flatness control for high strength pipeline steel product has been greatly improved on 2150 hot strip mill at Angang. The qualification rate of crown increased from 18.79% to 97.98%, and the roll changing period prolonged. Now, the mill is running stably.
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Received: 01 January 1900
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2008, Vol. 43 
