Study on strip running deviation at exit of heat section in continuous annealing furnace for cold rolling |
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Authors: | REN Wei- chao LI Yang- long YANG Zhen LI Guan- xiong SUN Jian- xin ZHENG Xiao- fei |
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Affiliation: | 1.Shougang Jingtang United Iron and Steel Co., Ltd., Tangshan 063200, Hebei, China ;2. Shougang Research Institute of Technology, Beijing 100041, China |
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Abstract: | In order to solve strip reciprocating and quick- moving running deviation at the exit of heat section for vertical continuous annealing furnace, the thermal crown of furnace roller was analyzed quantitatively and regression method was used to determine the impact of roller crown on strip running deviation. And then the alarm program for strip running deviation was established, which can give early warning of strip running deviation and adjust the model parameter and the heating and cooling temperature rate simultaneously. With the application of this system on a continuous annealing machine for cold rolling in Shougang Jingtang Company, the strip running deviation which caused by thermal crown of furnace roller can be solved. |
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Keywords: | vertical continuous annealing furnace radiant tube furnace (RTF) section The thermal crown Heating model heating and cooling rate strip deviation |
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