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本文较详细地介绍了铁路用60Si_2Mn钢弹条,采用了KGPS—160—8信频式可控硅中频装置,成功地进行感应加热成型及余热淬火的综合使用情况,并对小直径(φ13毫米)中频加热装置的确定方法,感应器的设计原理,炉衬材料的选择应用,生产工艺的试验探讨作了简要的阐述。在大量室内试验的基础上,经小批量试产试铺,并经近两年时间的工作性大批量生产,已采用中频感应加热成型余热淬火制造了四百多万件弹条,各项技术性能指标均达到或超过部标要求,在全国九个铁路局的主要干线上铺设使用,用户反映良好,可确保列车安全,畅通无阻。 与旧工艺相比免除了一道淬火加热工序,仅按全路每年的实际生产使用量计算,弹条采用中频感应加热成型立即进行余热淬火,尔后采用高温回火工艺,可节电一千多万度,获得经济效益一百五十万元以上。
This paper introduces the 60Si_2Mn steel bar used in railway in detail and KGPS-160-8 frequency-controlled thyristor intermediate frequency device to successfully carry out the induction heating molding and the comprehensive utilization of residual heat quenching. The small diameter (φ13mm ) To determine the intermediate frequency heating device, the design principle of the inductor, the selection and application of the lining material, the production process of the test discussed briefly. On the basis of a large number of indoor tests, the trial production of small quantities of trial shop, and after nearly two years of working mass production, has used IF induction heating quenching to create more than 400 million pieces of bar, the technology Performance indicators meet or exceed the requirements of the Ministry of standards, the nine major railways in the country laying the use of the main trunk, the user reflects the good, to ensure the safety and smoothness of the train. Compared with the old process eliminates the need for a quenching heating process, only according to the actual production and usage of the annual calculation, the elastic strip induction heating immediately after quenching, and then using high-temperature tempering process, can save more than 10 million Degree, access to economic benefits more than 1.5 million yuan.