Regarding to the fracture problem of the rotating gear of the port loading and unloading gantry crane,a reasonable and effective welding process was selected through material welding performance analysis,which reduced the cold and hot crack sensitivity of the weld seam,solved the problem of embrittlement and softening in the welding heat affected zone,improved the comprehensive mechanical properties of the weld seam,and obtained high-performance welding joints,laying a theoretical foundation for the application and research of 42CrMo4 dissimilar steel welding.
关键词
回转齿轮/焊接工艺方法/冷热裂纹/脆化/软化
Key words
rotating Gear/welding process/cold and hot crack/embrittlement/softening
维普
万方数据