本文介绍了用不同厂家不同规格的GCr15轴承钢试样进行球化试验中原始组织、加热温度,保温时间、冷却速度诸因素对该钢球化后组织的影响。从试验中得出获得理想球化组织的关键是加热温度(790℃),其理想的原始组织第一是稳针马氏体,其次是轧后空冷珠光体;并同时得出在正确地加热温度下冷却速度的影响不明显而适当延长保温时间对组织改善却大有好处。 This article describes the use of different manufacturers of different specifications of GCr15 bearing steel sample balling test in the original organization, heating temperature, holding time, the cooling rate of the ball after the organization of the impact. The key to obtain the ideal spherulitic structure from the experiment is the heating temperature (790 ℃). The ideal primary structure is the first stable martensite, followed by the air-cooled pearlite after rolling. At the same time, The influence of the cooling rate at the temperature is not obvious and properly prolonging the holding time is greatly beneficial to the improvement of the tissue.