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| Solidification end position determination on dynamic soft reduction of continuous casting slabs based on force feedback model |
| JIN Xin1,2，WEN Xi1,2，SHI Xue-liang3，LIU Da-wei1,2，REN Ting-zhi1,2 |
（1. National Engineering Research Center for Equipment and Technology of Cold Rolling Strip， Yanshan University，Qinhuangdao 066004， Hebei， China
2. College of Mechanical Engineering， Yanshan University， Qinhuangdao 066004， Hebei， China
3. China National Heavy Machinery Research Institute Co.， Ltd.， Xi’an 710032， Shaanxi，China） |
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Abstract During slab continuous casting soft reduction process，in order to determine solidification end position more accurately，to ensure the reasonable reduction position and reduction section and improve the quality of products of the continuous casting slabs，the mechanical behavior characteristics of slab solidification shell was analyzed. A dynamic liquid core solidification end position prediction mathematical model based on force feedback was developed. The variable laws of reaction force on pinch rolls and total pressure of segment with the changing of solidification end position of liquid core were calculated by the mathematical model. According to those variable laws，the methods for determining solidification end position of liquid core were presented based on force feedback mathematical model. And the accuracy of force feedback mathematical model is verified by pin-shooting experiment.
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Received: 04 December 2017
Published: 20 June 2018
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2018, Vol. 53 
