BH催渗技术对渗碳螺旋伞齿轮组织和性能的影响

使用BH催渗技术,采用渗碳温度不变、缩短渗碳时间和渗碳时间不变、降低渗碳温度两种工艺对伞齿轮进行渗碳,分析了催渗处理后伞齿轮的硬度、渗层深度、金相组织、硬度梯度及变形情况,并与原工艺渗碳处理结果进行了对比分析.实验结果表明使用BH催渗剂后的渗碳齿轮轮齿组织得到细化,热畸变减小,渗碳层深度增加,渗碳层碳化物分布形态得到改善,渗碳层硬度梯度趋于平缓.

Microstructure and Properties of Carburized Bevel Gear by BH Energizing Technology

The carburized gears by the process of original carburizing,and by the process using BH energizing technology with the same temperature and shorter time and with the same time and lower temperature is conducted.The hardness,the depth of carburizing layer,the microstructure,the hardness gradient and distortion of these carburized gears are analyzed and compared.The results show that these carburized gears by using BH energizing reagent get finer microstructure,lower heat distortion,deeper carburizing layer,better carbide distribution morphology and hardness gradient in carburizing layer.