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本文根据生产实践,叙述了轴坯钢中的残铝量对钢的奥氏体晶粒度的影响,以及残铝量与车轴机械性能及车轴发纹报废率的关系。找出了细化车轴晶粒度的热处理方法。
According to the production practice, this paper describes the influence of the residual aluminum content in the steel on the austenite grain size and the relationship between the residual aluminum content and the mechanical properties of the axle and the rejection rate of the axle hairline. The heat treatment method of refining the grain size of the axle was found out.