高铬铸铁叶片堆焊工艺研究进展  

Progress of Surfacing Technology of High Chromium Cast Iron Blades

作　　者：高吉昌 门秀花[1] 姜帅 付秀丽[1] 蒋振峰 李艳 GAO Jichang;MEN Xiuhua;JIANG Shuai;FU Xiuli;JIANG Zhenfeng;LI Yan(School of Mechanical Engineering,University of Jinan,Jinan 250000,China;Zibo Taa Metal Technology Co.,Ltd.,Zibo 255000,Shandong,China)

机构地区：[1]济南大学机械工程学院,济南250000 [2]淄博大亚金属科技股份有限公司,山东淄博255000

出　　处：《材料导报》2024年第17期191-199,共9页Materials Reports

基　　金：山东省自然科学基金重点项目(ZR2020KE022);山东省自然科学基金面上项目(ZR2021ME179);国家自然科学基金面上项目(52175408)。

摘　　要：高铬铸铁因良好的耐磨损、强度、韧性及抗高温、耐腐蚀性能,常被应用于抛丸机叶片、大型挖泥泵叶轮、水泥球磨机耐磨衬板等受磨损冲击的器件,通常采用堆焊工艺对高铬铸铁工件的磨损表面进行修复,以延长其使用寿命,降低制造新工件时产生的资源消耗。本文综述了高铬铸铁叶片堆焊过程中焊接电流、层间温度、冷却条件等工艺参数对高铬铸铁堆焊层组织结构、晶粒大小的影响,讨论了钒、钛、铌、稀土纳米颗粒等合金粉末及由合金粉末制成的药芯焊丝对高铬铸铁堆焊层组织成分、组织结构的影响,对比了现有传统堆焊工艺缺陷,指出了堆焊加工工艺未来发展的方向。Because of its good wear resistance,high chromium cast iron is often used as shot blasting machine blade,large dredging pump impeller and other wear impact occasions.Fatigue damage of wear and crack on the surface of workpiece are usually repaired by stacking welding process to prolong their service life,significantly reduce the resource consumption generated by manufacturing new artifacts.This paper summarizes the influence of the process parameters and the performance of the hot metal welding tape.The influence of welding current,interlayer temperature and cooling condition on the tissue structure and grain size of high chromium cast iron stack and the influence of the welding wire containing vanadium,titanium,niobium and rare earth nanoparticles on the tissue composition and structure of high chromium cast iron stack are discussed respectively;compared with the existing traditional surfacing process,the future development direction of surfacing process is pointed out.

关 键 词：高铬铸铁 堆焊 叶片 加工参数 药芯焊丝 耐磨性 

分 类 号：TG455[金属学及工艺—焊接]