摘要
本文借助微处理机系统控制和检测大功率感应脉冲加热过程电热参数动态变化值。从电磁相互作用理论、热传导及物理冶金学理论出发,分别对感应脉冲加热物理过程和热透层深度与电热参数之间的关系进行了深入研究。按涡流集中区物理性态提出了铁磁材料感应加热周期内划分铁磁态、铁磁性向顺磁性转化态及顺磁态三个阶段的理论模型。文中还对三阶段理论的本质进行了分析讨论,建立了热透层(淬硬层)深度与感应加热电热参数之间的关系式。
A micro-computer system can perform the control of a highfregency generator,sampling,displaying and printing of the instantaneous valueof the electrothermal parameters of heating processes,pulse hardening exper-iments of ferromegnetic and paramagnetic materials have been carried out witha high power density.The physical process of the induction heating and therelationship of hardened depth versus the electrothermal parameters have beenfully studied,based on electromagetic interaction theories,heat transfer the-ories and the physical metallurgy.
关键词
感应加热淬火
表面硬化
脉冲加热
induction hardening
surface hardening
puse heating
