45钢堆焊修复工艺及性能研究  

Study on hardfacing repair process and properties of steel 45

作　　者：贺峥峥[1] 刘政[1] 

机构地区：[1]江西理工大学机电工程学院,江西赣州341000

出　　处：《矿山机械》2012年第11期101-104,共4页Mining & Processing Equipment

摘　　要：笔者选用D277、D256两种焊条进行45钢的堆焊修复,并以D277焊条作为堆焊层和打底层,在相同的工艺参数下进行堆焊;通过对其金相显微组织、硬度和磨损性能进行研究分析,结果表明,用D277焊条直接作为修复堆焊层,可使其硬度和耐磨性得到明显改善。The hardfacing repair process of steel 45 was investigated by using electrode D277 and D256. In the study, electrode D277 was applied onto hardfacing layer and render layer respectively, and hardfacing process was conducted at the same welding parameters. Moreover, the microstructure, hardness and abradability of the surfacing layer were analyzed. Results showed that the application of electrode D277 onto the hardfacing layer improved the hardness and the abradability remarkably.

关 键 词：堆焊 显微组织 硬度 磨损 

分 类 号：TG455[金属学及工艺—焊接]