钻杆接头耐磨带明弧堆焊药芯焊丝的研制  

Developing of open arc hardfacing flux-cored wire for drill joint

作　　者：胡建平[1] 蒋建敏[1] 贺定勇[1] 王智慧[1] 

机构地区：[1]北京工业大学材料科学与工程学院,100124

出　　处：《焊接》2009年第11期64-65,共2页Welding & Joining

摘　　要：研制了一种用于钻杆接头耐磨带堆焊的YD-100明弧堆焊药芯焊丝,通过金相显微镜、洛氏硬度计、MLS-225型湿式橡胶轮磨粒磨损试验机对其堆焊层的金相组织、硬度、耐磨粒磨损性能进行了研究。试验结果表明,在药芯焊丝中加入微量的硼元素,能显著提高堆焊层的硬度及耐磨性,使堆焊层的硬度达到60HRC,耐磨粒磨损性能相比优于国外某公司产品。The YD-100 open arc hardfacing flux-cored wire was produced for improving the wear resistance of the drill joint.The microstructure, hardness and abrasive wear resistance of the hardfaced layer were investigated though the metallographic examination,rockwell hardness tester and MIS-225 type rubber wheel abrasive testing machine.The results show that the addition of little boron on the chemical composition of the wire can obviously improve the hardness and wear resistance of the deposition.The hardness of deposited metal is about 60HRC and the abrasive wear resistance gets a great advance,which compared with some the overseas products.

关 键 词：钻杆接头 药芯焊丝 明弧堆焊 磨粒磨损 

分 类 号：TG47[金属学及工艺—焊接] TG71