【摘 要】
：
设计了连铸结晶器弯月面处传热模拟实验,测量了在结晶器振动情况下弯月面处的温度,发现该处的温度随着结晶器的振动而产生周期性的变化.实验结果表明,结晶器振动频率越大,振
【机 构】
：
上海大学上海市钢铁冶金新技术应用开发重点实验室,上海大学上海市钢铁冶金新技术应用开发重点实验室,上海大学上海市钢铁冶金新技术应用开发重点实验室,上海大学上海市钢铁冶金新技术应用开发重点实验室 上海 2
论文部分内容阅读
设计了连铸结晶器弯月面处传热模拟实验,测量了在结晶器振动情况下弯月面处的温度,发现该处的温度随着结晶器的振动而产生周期性的变化.实验结果表明,结晶器振动频率越大,振动幅值、结晶器冷却强度以及结晶器与铸坯间的接触压力越小,因结晶器振动而产生的弯月面温度波动亦越小.据此认为,连铸弯月面温度波动是导致铸坯表面缺陷产生的一个重要原因.基于此“温度波动”现象,分析了包括高频小振幅振动、软接触结晶器电磁连铸、热顶结晶器等诸多技术改善铸坯表面质量的机理.
The simulation experiment of heat transfer at the meniscus of continuous casting mold was designed and the temperature at the meniscus was measured under the condition of mold oscillation.The results show that the temperature of the mold changes cyclically with the vibration of the mold.The experimental results The results show that the larger the vibration frequency of the mold, the smaller the vibration amplitude, the cooling intensity of the mold and the contact pressure between the mold and the slab, the smaller the temperature of the meniscus due to the mold vibration is, The temperature fluctuation of the continuous casting meniscus is one of the important reasons that cause the surface defects of the slab.According to this phenomenon of “temperature fluctuation”, many kinds of vibration including high frequency and small amplitude vibration, electromagnetic continuous casting of soft contact mold, Technology to improve the surface quality of the slab mechanism.
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