南钢轴承钢工艺研究

Process Research of GCr15

为消除轴承钢中碳化物液析,改善碳化物带状,同时降低碳化物网状的级别,南钢在轴承钢的生产过程中,不断进行轴承钢加热温度、加热时间与碳化物溶解扩散情况的关系研究,寻找一条合理的加热温度和加热时间,提高南钢轴承钢质量水平。另外,南钢着手进行控轧控冷轧制,寻找低温轧制的途径和方法,降低碳化物网状级别,细化组织晶粒,使南钢轴承钢线材质量水平提升到一个新的高度。

In order to eliminate carbide liquation of GCr15, improve the carbide banding and reduce the level of carbide network, while producing GCr15, the relationship of GCr15 between heating temperature, heating time and the spread of carbide dissolution is researched to find out a reasonable heating temperature and heating time to improve the quality of GCr15.In addition, some ways can be found to reduce carbide network level and to refine the grain by controlled rolling and controlled cooling, which improves the quality levels of GCr15.