铸坯感应加热过程温度特性模拟

doi:10.13228/j.boyuan.issn1005-4006.20230035

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摘要为研究铸坯电磁感应加热过程的温度场分布特性,结合实际工艺参数设计了铸坯感应加热装置,采用数值模拟的方法对尺寸为200 mm×1 800 mm×10 m的铸坯感应加热进行了数值模拟,分析了频率、输送速度、功率及能耗等条件的变化对铸坯感应加热效果的影响。结果表明,铸坯感应加热过程使用中频800 Hz到1 000 Hz更有利;研究了铸坯输送速度及功耗的影响,在设备条件允许情况下,适当提高输送速度可以减小功耗,但由于铸坯自身尺寸的影响,过快的输送速度会导致铸坯受热不均匀而影响铸坯温度分布均匀性;在铸坯离开感应加热器完成加热后,添加保温措施保温输送铸坯,适当提高输送速度到0.1 m/s可以减小功耗且更有利于铸坯整体温度分布均匀。

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	郑乾
	邓安元

关键词 ：感应加热, 数值模拟, 频率, 输送速度, 功耗, 保温罩

Abstract：In order to study the characteristics of temperature field distribution during electromagnetic induction heating process of casting billet. Based on the actual process parameters, an induction heating device for casting billet was designed. The numerical simulation method was used to simulate the induction heating process of casting billet with dimensions of 200 mm×1 800 mm×10 m. According to the simulation results, the influences of frequency, transmission speed, power and energy consumption on the heating effect were analyzed. The simulation results show that it is more advantageous to use the medium frequency 800 Hz to 1 000 Hz in the induction heating process of the casting billet. The influence of conveying speed and power consumption of casting billet is also studied. It is considered that the temperature distribution uniformity of casting billet can be improved by increasing conveying speed and adding insulation measures under the condition of equipment. However, due to the influence of the size of the billet itself, too fast transportation speed will lead to uneven heat and affect the uniformity of temperature distribution of the billet. After the casting billet leaves the induction heater to complete heating, adding insulation measures to insulate and transport the casting billet, increasing the conveying speed to 0.1 m/s can reduce the power consumption and improve the uniformity of the overall temperature distribution of the billet.

Key words： Induction heating numerical simulation frequency transfer speed power consumption heat insulation cover

收稿日期: 2023-05-10

引用本文:

郑乾, 邓安元. 铸坯感应加热过程温度特性模拟[J]. 连铸, 2023, 42(6): 70-77. ZHENG Qian, DENG Anyuan. Simulation on temperature characteristics of casting billet during induction heating process. CONTINUOUS CASTING, 2023, 42(6): 70-77.

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http://www.chinamet.cn/Jweb_lz/CN/10.13228/j.boyuan.issn1005-4006.20230035 或 http://www.chinamet.cn/Jweb_lz/CN/Y2023/V42/I6/70

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