机械镀锌基元结晶镀层形成中添加钛离子的作用研究

　　机械镀锌基元结晶镀层形成中添加钛离子的作用研究
　　Mechanical plating is a new surface engineering technology,because of its high efficiency,low cost,small power consumption,simple process,less pollution, it is a clean production technology and green manufacturing technology,received extensive attention in the actual and was more widely used at home and abroad.With the development of society,as well as the scarcity of resources,and that a single mechanical plating metal coating process can not meet the people’s production and living needs,of this machinery is a gold-plated alloy coating process was highly valued.The mechanical zinc-aluminum,rare earth alloy coating process has been successfully developed by Kun ming university and technology.On this base the main purpose of this paper is to study mechanical zinc-titanium alloy coating process and its the physical and chemical properties,and the role of the titanium ion was Ball Neodymium Magnets analysised in the mechanical zinc alloy coating process without the formation of crystalline.The role of titanium was analysised by the phenomena and the results of zinc, titanium metal salts deposited common adsorption of preliminary;The Mechanical plating Zn-Ti alloy coating process was determined bythe experimental method using orthogonal;The amount of titanium metal salts from 0 to 1.0%of the zinc-titanium alloy coating was producted according to the result of experimental method using orthogonal,random samples was choosed from a variety of samples,and the chemical resistance and electrochemical corrosion of samples were experimented by saltwater corrosion experiments,neutral salt spray test,and electrochemical corrosion experiment,atmospheric exposure experiment;the physical properties of the coating were determinated by the bond strength of coating, the porosity of coating,the density of coating,the microhardness of coating and the appearance of coating;at the same time the zinc-titanium surface coating,the coating element distribution and content,fracture surface characteristics of the coating were observed by the microscope,the fluorescence spectroscopy
　　,SEM.And the role of titanium ion was analysised in the Mechanical plating Zn-Ti alloy coating process. The results showed that:The Mechanical plating Zn-Ti alloy coating process is feasible;Compared the pure zinc coating,zinc titanium coating have a stronger resistance to chemical corrosion and electrochemical corrosion,and the corrosion rate http://www.chinamagnets.biz reduced more than 55 percent,with the addition of titanium increase the corrosion resistance of the coating was good again to change the trend of deterioration,and the coating of Zn -Ti0.6%is best;Compared the pure zinc coating,Zn-Ti coating has the bright appearance,high bonding strength,high density and microhardness,the value of these increase with the addition of titanium to increase after declining trend,which Zn-Ti0.6%Coating is largest;The coating composition analysis and phase analysis show that the titanium is in the 2theta equivalent to 86.18°,only Ti0.6%coating can be judged from the peak There,when the amount was 1.0%,measured Ti relative content of 0.144 percent,mainly in the coating of titanium formed TiO2 and TiO exist.The Mechanical plating Zn-Ti alloy coating has good physical and chemical characteristics,the role of titanium ions in the coating are:the Zinc algae mission was refined by titanium metal salts,and the deposition of the Zinc algae Mission in the surface was changed,the point-of deposition was trend to the area Deposition,and can make the coating uniform and compact.At the same time the electrochemical corrosion resistance properties of coating is changed by titanium, from the form of pitting corrosion forms into the third.Third,titanium itself is highly corrosion resistance,in many medium very stable,titanium can be generated in the surface layer of dense,strong adhesion,and the inertia oxide film, it is a good protection for metal matrix.