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| Secondary Cooling System for 37Mn2 Steel With Round Continuous Caster |
| LI Jian-quan1 ,CHEN Deng-fu2, WU Guo-rong3, LEI Yang-wei1 |
1. Panzhihua Steel and Vanadium Co., Ltd., Pangang Group, Panzhihua 617062, Sichuan, China
2. College of Materials Science and Engineering, Chongqing University, Chongqing 400030, China
3. Pangang Group Research Institute Co., Ltd., Panzhihua 617000, Sichuan, China |
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Abstract Base on the high temperature mechanics performance and metallurgical criterion, heat transfer mathematical model was proposed, and the round billet temperature and thickness of solidified shell were calculated with the model. According to the calculation results, the model was optimized. And on this basis, the reasonable secondary cooling system was proposed. The secondary cooling system for 37Mn2 steel with round continuous caster was studied, and the secondary cooling system which was matched with the continuous casting process and equipments was established and it was applied in industrial production. The results show that there is no difference between the measurement and calculated results in round billet temperature. The surface temperature in straightening zone is above 950℃. The internal quality of round billet is perfect and the level of central crack and porosity is 0, and the level of shrinkage, center porosity and center segregation is below 1.5. The quality of round billet can meet the needs of subsequent production.
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Received: 11 March 2013
Published: 20 January 2014
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2014, Vol. 49 
