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为了解决齿轮钢中存在粒状贝氏体而影响生产的问题，对钢厂来料进行检验及对粒状贝氏体组织、性能进行了分析，找到了粒状贝氏体形成的原因，制定出消除粒状贝氏体的工艺方法。
In order to solve the problem of production of granular bainite in gear steel, the incoming inspection of the steel mill and the analysis of the granular bainite structure and properties were carried out to find out the reasons for the formation of granular bainite, Bainite process.