数控正火与手动正火质量对比研究

Research of normalizing treatment of numeric control and manually operation

针对U75V钢轨气压焊接头,分别采用数控正火和手动正火两种方式进行钢轨焊后热处理。结果分析表明:钢轨接头经数控正火后,静弯承载能力明显提高,轨头和轨底角区域正火效果理想,正火质量优于手动正火。现场应用表明,该数控正火柔性控制好,提高了作业效率,降低了工作强度,保证了钢轨接头的正火质量和使用性能。

This essay introduces the technology nf normalizing treatment on the rail U75V by numeric control and manually operation. The result indicates that the hearing capacity of rails have heen improved highly.The effect of normalizing treatment on railhead and rail bottom angle is more excellent than manually operatinn.The application indicates that it improves the work efficiency and condition ,and ensures the quality of the joint of rail by normalizing treatment.