我厂生产的FC1型1吨翻斗车的传动齿轮选用20CrMnTi材料制造。试制初期,由于渗碳淬火热处理变形严重,影响装配,按图纸加工的花键轴需要把花键磨小才行。为了解决齿轮内花键缩小问题,我们根据资料的介绍及外厂的先进经验,决定采用碳氮共渗工艺加工心轴来进行试验,经过对共渗工艺调整,其结果令人满意,完全满足了装配的要求。 I plant production FC1 1 ton dump truck transmission gear selection 20CrMnTi material. Trial early, due to severe deformation of carburizing and quenching heat treatment, the impact of assembly, according to the spline shaft machining drawings need spline grinding small job. In order to solve the problem of gear reduction within the gear, according to the introduction of information and the advanced experience of the factory, we decided to use the carbonitriding process to process the mandrel. After the adjustment of the osmosis process, the result was satisfactory and fully satisfied The assembly requirements.