港口装卸门机回转齿轮42CrMo4/Q345钢焊接工艺研究  

Studies on Welding Process of 42CrMo4/Q345 Steel for Rotary Gear of Port Loading and Unloading Gantry Crane

作　　者：张磊 毕胜 许秋 张维光 袁嘉勋 ZHANG Lei;BI Sheng;XU Qiu;ZHANG Weiguang;YUAN Jiaxun(Tangshan Polytechnic College,Tangshan 063299,China;Tangshan Additive Precision Manufacturing Engineering Technology Research Center,Tangshan 063299,China;Shougang Jingtang United Iron and Steel Co.,Ltd.,Tangshan 063200,China;HengShui Yiling Pharmaceutical Co.,Ltd.,HengShui 253800,China)

机构地区：[1]唐山工业职业技术学院,河北唐山063299 [2]唐山市增材精密制造工程技术研究中心,河北唐山063299 [3]首钢京唐钢铁联合有限责任公司,河北唐山063200 [4]衡水以岭药业有限公司,河北衡水253800

出　　处：《工业技术与职业教育》2024年第5期6-8,共3页Industrial Technology and Vocational Education

基　　金：唐山市科技局科学研究项目“大规格BHW35锅炉用钢筒体焊接接头热影响区组织性能研究”(课题编号17110234a),主持人毕胜。

摘　　要：针对港口装卸门机回转齿轮断裂问题,通过材质的焊接性分析,选择出合理有效的焊接工艺方法,降低了焊缝的冷热裂纹敏感性,解决了焊接热影响区的脆化软化问题,提高了焊缝的综合力学性能,获得性能优良的焊接接头,为42CrMo4异种钢焊接的应用和研究奠定理论基础。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 

分 类 号：G755.1[文化科学—教育学]