The large-scale Anshan Iron and Steel Co., Ltd. cooperated with the Anshan Iron and Steel Co., Ltd. Product Development Department and the Anshan Iron and Steel Group Iron and Steel Research Institute to develop a 50 kg/m full-length quenching rail. The prototype has been successfully tested and its specifications and quenching properties have been tested.
It is reported that the online residual heat quenching technology is a rail heat treatment technology, which can effectively improve the internal structure of the rail, improve the hardness and toughness, extend the service life of the rail and improve the quality of the rail.
According to reports, due to the difficulty in producing 50 kg/m full-length quenching rails, in order to ensure the success of the first trial production, they are also prepared for large-scale production tools such as process optimization, rolls, guides, etc. The production and control problems such as difficulty in control and tapping have further increased the intensity of quality control throughout the whole process, from billet heating to rail rolling, full-length quenching, processing, etc., strictly operating and monitoring according to standard requirements, ensuring The first batch of 50 kg/m full-length quenching rails have stable dimensional specifications and good quenching performance. (Source: Internet)
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