高效高硬度低成本耐磨堆焊焊条的研制  

Development of wear resisting surfacing electrode with high efficiency,high hardness and low cost

作　　者：张清辉[1] 肖逸锋[1] 龚建勋[1] 

机构地区：[1]湘潭大学机械工程学院,湖南湘潭411105

出　　处：《焊接学报》2008年第3期5-8,共4页Transactions of The China Welding Institution

基　　金：湖南省科技厅资助项目(2006GK3087);湖南省教育厅资助项目(05C085;06C838)

摘　　要：研制了一种新型的高效高硬度低成本耐磨堆焊焊条。焊条中大量加入铁粉和适量的石墨而不加任何矿石粉,少加或不加价贵组分,系统调整焊条药皮配方以及筛选合适的合金组元,既提高了焊条的综合性能又降低了成本。结果表明,焊条的工艺性能良好,焊条的熔化效率达3kg/h,熔敷效率达226.9%,焊条收得率达80%,堆焊单层熔敷金属硬度达67HRC,耐磨性为某高铬铸铁焊条的1.52倍,同时具有较好的抗裂性。A new type of wear-resisting surfacing electrode with high efficiency, high hardness and low cost was developed. A large number of iron powders, proper graphite, without any ore powders and little or without expensive components were added in electrode coating by systematically adjusting coating compositions and alloy constituents. This improved the combination properties of the electrode as well as reduced cost. Results show that the usability of the electrode are well. The melting efficiency, deposition efficiency and recovery factor of the electrode are up to 3 Kg/h, 226.9% and 80%, respectively. The hardness of single layer deposited metal reaches 67 HRC, the wear resistance is 1.52 times of a commercial high chromium casting iron electrode and the crack resistance is better at the same time.

关 键 词：堆焊焊条 耐磨 高效 高硬度 低成本 

分 类 号：TG422.1[金属学及工艺—焊接]