纳米材料在无镀铜焊丝中的研究现状  

Progress of Nano-materials in Non-copper Coated Solid Wires

作　　者：栗卓新[1] 曹晓涛 Wolfgang TILLMANN 

机构地区：[1]北京工业大学材料科学与工程学院,北京100124 [2]德国多特蒙德工业大学材料工程研究所,多特蒙德44227

出　　处：《北京工业大学学报》2017年第10期1582-1589,共8页Journal of Beijing University of Technology

基　　金：国家自然科学基金资助项目(51574011)

摘　　要：无镀铜焊丝是未来气保护实芯焊丝的发展趋势.综述了纳米材料在无镀铜焊丝中的研究现状,得出:1)无镀铜焊丝表面的纳米涂层使自腐蚀电位正向增加,焊丝的耐蚀性增强;焊接时熔滴细化,熔滴过渡频率加快,电弧稳定性增强.2)纳米添加剂在摩擦界面通过物理吸附或摩擦化学反应成膜、"微滚珠"、"微抛光"等机制降低摩擦副的摩擦因数和磨斑直径,为减少无镀铜焊丝导电嘴磨损提供了理论指导.Non-copper coated solid wires are the future development trends for gas shielded solid wires.The research progress and application of nano-materials in non-copper coated solid wire were reviewed. It was concluded that the surface nano-coating of non-copper surface with corrosion resistance by increasing self-corrosion potential. The arc stability is improved by refining molten droplets and accelerating transition frequency. The nano-additives surface with coefficient and wear scar diameter of tribo-pair through several lubrication mechanisms on the rubbing interfaces such as physical adsorption or chemical reaction film,＂micro ball＂and ＂micropolishing＂,thus providing some theoretical guidance to decrease contact tip wear for non-copper coated solid wires.

关 键 词：无镀铜焊丝 纳米涂层 纳米添加剂 导电嘴磨损 

分 类 号：TG424[金属学及工艺—焊接]