论文部分内容阅读
以高铬铁粉为主要原料,添加适量的铌铁粉、石墨等经焊丝成型机轧制出不同成分的药芯焊丝,采用埋弧自动焊设备制备出含耐磨性能优良的堆焊层,对堆焊层组织进行全面分析,分析了堆焊层金属的化学成分、物相组成,分析了堆焊层各物相的组织和性能。该堆焊层宏观硬度高,耐磨粒磨损性能优良。
The high-chromium iron powder as the main raw material, adding an appropriate amount of niobium iron powder, graphite and other wire rolling machine rolling flux cored wire of different composition, the use of submerged arc welding equipment prepared with wear resistance excellent surfacing layer, Based on the comprehensive analysis of the surfacing layer structure, the chemical composition and phase composition of the surfacing layer metal are analyzed, and the microstructure and properties of each phase of the surfacing layer are analyzed. The surfacing macroscopic hardness, wear-resistant grain wear performance.