【摘要】 综述了在泵行业应用比较广泛的5种表面工程技术:堆焊技术、喷焊技术、激光表面处理技术、化学热处理技术和化学镀技术,以及近年来国内将稀土用于这5种表面工程技术的最新研究进展。研究成果表明,稀土元素的加入可以使现有的表面工程技术进一步提高表面质量,从而可以大大延长泵及其零部件的使用寿命。稀土表面工程技术目前方兴未艾,初步的产业化工作表明其经济效益非常显著。鉴于我国稀土资源非常丰富,相关科研机构众多,同时考虑到当前我国泵行业节能、节材的迫切需求,因此,在泵行业及早开展系统的应用研究不仅是非常必要的,而且是可行的。更多还原

【Abstract】 Five surface engineering technologies which have been widely used in pump industry,namely,welding,spraying,laser cladding, thermo-chemical treatment and chemical plating,were reviewed.The recent research development on the use of rear earth in the five surface engineering technologies in China is introduced.The research results have indicated that the use of RE in traditional surface engineering technologies can improve the quality of surface greatly,which has benefit for the life prolonging of pump and parts.With the consideration of the rich resources in RE and the urgent need of energy and materials saving in China,it is necessary to conduct systematic application researches in pump industry as soon as possible.更多还原