Furnace charging optimization technology of bell-type annealing process aiming at sticking prevention
BAI Zhen-hua1,2, CUI Ya-ya1, ZHU Hou-hong1, KONG Ling-kun1, LI Xiu-jun3, LI Peng-cheng1
1. National Engineering Research Center for Equipment and Technology of C.S.R., Yanshan University, Qinhuangdao 066004, Hebei, China 2. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, Hebei, China 3. Thin Strip Co., Ltd., of Baosteel, Shanghai 200431, China
Abstract:Since only the annealing efficiency was considered and the defect prevention in the bell-type annealing process was not involved in the past, taking into account the equipments and technological characteristics of bell-type annealing line, the influence mechanism of furnace charging process on sticking defect was analyzed through a mass of field experiments and theoretical studies, and the concept of sticking index was defined. Also, the effect of the coiling process, the coil size, the product specifications and the annealing process on the internal stress of steel coils was fully considered. The method of multiple objective function optimization was adopted. Considering both production efficiency and defect prevention, a suitable furnace charging optimization technology of bell-type annealing process aiming at sticking prevention was introduced by taking the steel coil base number as close as possible to the theoretical minimum and minimizing the average and the peak of sticking index of the same batch of the steel coil after charging as the target, and it was applied to the production practice of a cold rolled sheet plant. Good application effect was achieved with increased production by 5.5% and decreased occurrence rate of sticking by 12.4%, creating a great economic benefit for the enterprise and possessing further popularization and application value.
收稿日期: 2014-06-24
出版日期: 2015-01-12
引用本文:
白振华 , 崔亚亚, 朱厚鸿, 孔令昆, 李秀军, 李鹏程. 罩退过程以黏结防治为目标的装炉优化技术[J]. 钢铁, 2015, 50(1): 81-85.
BAI Zhen-hua, CUI Ya-ya, ZHU Hou-hong, KONG Ling-kun, LI Xiu-jun, LI Peng-cheng. Furnace charging optimization technology of bell-type annealing process aiming at sticking prevention. Iron and Steel, 2015, 50(1): 81-85.