摆动触发的连铸结晶器非正弦振动系统及工艺参数研究

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摘要通过控制电机的角速度实现非正弦振动各种参数的在线调节，提出一种摆动触发的对置伺服电机驱动结晶器振动装置。首先阐述振动装置的工作原理,并建立其三维模型；其次，基于整体函数非正弦振动波形，给出实现该波形的伺服电机角速度曲线及工艺参数的计算方法；最后，绘制多工艺参数等值曲线，根据某钢厂连铸机的振动工艺参数，确定出非正弦振动合理的拉坯速度与频率和振幅的同步控制模型。研究表明，理论计算的非正弦振动工艺参数满足取值限度要求，对于进一步减小铸坯振痕深度，改善铸坯与结晶器之间的润滑，提高拉坯速度和铸坯表面质量，具有重要的参考价值。

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	周超1
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	李凤丽1
	张兴中2
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	王芳4

关键词 ：连铸, 结晶器, 振动系统, 工艺参数

Abstract：By controlling the angular speed of the servomotor to realize all the parameters of non-sinusoidal oscillation adjusted online, an oscillator synchronously driven by two symmetry laid servomotors turning in the opposite direction was proposed. Firstly，the working principle of the oscillator was explained. And the three-dimensional model of the system was established. Secondly, the global function of non-sinusoidal oscillation waveform was analyzed. Meanwhile, the angular speed of servomotor to realize non-sinusoidal oscillation waveform of global function was presented. The calculation methods of technological parameters were given and the multi technological parameter curve was obtained. Based on the technological parameters of a caster for a plant, the synchronous control model of among the casting speed, oscillation frequency and amplitude was determined. The results show that technological parameters of non-sinusoidal oscillation can meet the requirement of value limit in theory, which provide an important reference for shallowing oscillation remark, improving the lubrication condition between mold and slab, enhancing casting speed and slab surface quality further.

Key words： continuous casting mold oscillation system technological parameters

收稿日期: 2022-08-02 出版日期: 2023-07-28

引用本文:

周超1,2，李凤丽1，张兴中2,3，王芳4. 摆动触发的连铸结晶器非正弦振动系统及工艺参数研究[J]. 振动与冲击, 2023, 42(14): 147-153.
ZHOU Chao1,2，LI Fengli1，ZHANG Xingzhong2,3，WANG Fang4. Swing triggered non-sinusoidal oscillation system and technological parameters for continuous casting mold. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(14): 147-153.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2023/V42/I14/147

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