基于居里点效应的大型筒节感应加热工艺技术
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摘要
为提高大型筒节感应加热装置的保温和加热效果,首先设计了大型筒节感应加热电阻保温装置,然后考虑金属的居里点效应,对大型筒节感应加热工艺路线进行了优化,基于有限元法建立了大型筒节感应加热电磁-热-应力耦合数学模型,研究了大型筒节感应加热保温和电阻保温的效果、传统加热工艺和考虑居里点效应的感应加热工艺条件下的加热效果。结果表明,通过感应加热电阻保温装置和考虑居里点效应的感应加热路线的双重设计,缩短了大型筒节热处理高温保温时间,降低了大型筒节内外表面等效应力,改善了大型筒节热处理效果。
In order to improve the insulation effect of the large cylinder induction heating device,a large cylinder induction heating resistor insulation device was designed. In order to improve the induction heating effect of large cylinder,the induction heating process route of large cylinder is studied by considering the Curie point effect of the metal during the induction heating,and an electromagnetic-thermal-stress coupling mathematical model of the large cylinder is established. The effect of the large cylinder induction heating and resistance insulation,the traditional heating process and the heating effect under the induction heating process considering Curie point effect are analyzed based on the finite element method. The results show that the double design of the induction heating resistor insulation device and the induction heating route considering the Curie point effect greatly shortens the thermal insulation time of the large cylinder at the high temperature stage. The maximum equivalent stress of the inner and outer surfaces of the large cylinder during heating is greatly reduced,and the heat treatment effect of the large cylinder is improved.
In order to improve the insulation effect of the large cylinder induction heating device,a large cylinder induction heating resistor insulation device was designed. In order to improve the induction heating effect of large cylinder,the induction heating process route of large cylinder is studied by considering the Curie point effect of the metal during the induction heating,and an electromagnetic-thermal-stress coupling mathematical model of the large cylinder is established. The effect of the large cylinder induction heating and resistance insulation,the traditional heating process and the heating effect under the induction heating process considering Curie point effect are analyzed based on the finite element method. The results show that the double design of the induction heating resistor insulation device and the induction heating route considering the Curie point effect greatly shortens the thermal insulation time of the large cylinder at the high temperature stage. The maximum equivalent stress of the inner and outer surfaces of the large cylinder during heating is greatly reduced,and the heat treatment effect of the large cylinder is improved.
引文
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[3]PEI Xin-hua,ZHOU Li-ping,LIU Xue-wen.Analysis of edge microstructure characteristics and stamping formability of low carbon pickled steel sheets[J].Baosteel Technical Research,2014,8(2):36.
[4]GUAN Ying-ping,WANG Zhen-hua,WU Bin,et al.Mechanism and inhibition of grain coarsening of Al-Mg-Si alloy in hot forming[J].Journal of Harbin Institute of Technology:New Series,2013,20(3):67.
[5]LIU Yu-rong,YE Dong,YONG Qi-long.Effect of heat treatment on microstructure and property of Cr13 super martensitic stainless steel[J].Journal of Iron and Steel Research,International,2011,18(11):60.
[6]Song M C,Moon Y H.Coupled electromagnetic and thermal analysis of induction heating for the forging of marine crankshafts[J].Applied Thermal Engineering,2016(98):98.
[7]Park H S,Dang X P.A study on the heating process for forging of an automotive crankshaft in terms of energy efficiency[J].Forty Sixth CIRP Conference on Manufacturing Systems,2013(7):646.
[8]HAN Yi,WEN Huai-yu,YU En-lin.Study on electromagnetic heating process of heavy duty sprockets with circular coils and profile coils[J].Applied Thermal Engineering,2016(100):861.
[9]孙建亮,张永振,彭艳,等.大型筒节台阶式临界区正火热处理工艺[J].钢铁,2015,50(8):65.(SUN Jian-liang,ZHANGYong-zhen,PENG Yan,et al.Step type critical region normalizing heat treatment process of heavy cylinder[J].Iron and Steel,2015,50(8):65.)
[10]SUN Jian-liang,LI Shuo,QIU Chou-wu,et al.Numerical and experimental investigation of induction heating process of heavy cylinder[J].Applied Thermal Engineering,2018,134:341.
[11]孙建亮,邱丑武,毕雪峰,等.感应加热与传统加热模式大型筒节加热效果研究[J].机械工程学报,2017,53(10):25.(SUN Jian-liang,QIU Chou-wu,BI Xue-feng,et al.Study on heating effect of heavy cylinder with induction heating and conventional heating[J].Journal of Mechanical Engineering,2017,53(10):25.)
[12]孙建亮,邱丑武,彭艳,等.大型筒节感应加热过程电磁-热耦合有限元仿真[J].钢铁,2016,51(11):93.(SUN Jian-liang,QIU Chou-wu,PENG Yan,et al.Combined electromagnetic and thermal FEM modeling of heavy cylinder during induction heating process[J].Iron and Steel,2016,51(11):93.)
[13]Kurose H,Miyagi D,Takahashi K,et al.3-D eddy current analysis of induction heating apparatus considering heating emission,heat conduction and temperature dependence of magnetic characteristics[J].IEEE Transactions on Magnetics,2009,45(3):1847.
[14]FU Xiao-bin,WANG Ba-you,TANG Xue-feng,et al.Study on induction heating of workpiece before gear rolling process with different coil structures[J].Applied Thermal Engineering,2017,114:1.
[15]姜建华,郑华毅.厚壁筒形工件连续感应热处理有限元模拟[J].材料热处理学报,2002,23(2):44.(JIANG Jian-hua,ZHENG Hua-yi.Numerical simulation of continuous induction heat treatment of thick wall tubes by finite element method[J].Transactions of Metal Heat Treatment,2002,23(2):44.)