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为了准确测量二冷区内铸坯的液固相分数,精确预报铸坯的凝固终点,在理论解析、物理模拟和实验验证研究的基础上,提出了振动法检测连铸坯液固相分数和液芯末端位置的新方法,总结了激振力和受迫振动位移等信号的反馈规律,比较了振频和激振力对相位差的影响,并对检测方案总体思路的可行性进行了论证.研究结果为板坯凝固过程中液固相分数及凝固终点的在线检测提供了指导和参考.
In order to accurately measure the liquid-solid fraction of slab in secondary cooling zone and predict the final solidification point of slab accurately, based on theoretical analysis, physical simulation and experimental verification, This paper summarizes the feedback rules of signals such as excitation force and forced vibration displacement and compares the influence of vibration frequency and exciting force on the phase difference and demonstrates the feasibility of the general idea of the detection scheme The results provide the guidance and reference for the on - line detection of liquid - solid phase fraction and solidification end point in slab solidification.