第1个回答 2013-07-04
Chemical nickel plating technology develops rapidly in recent years, and with the application of more and more fields of electronics, aviation, petroleum, chemical nickel plating technology will be developed further. Chemical plating nickel salt and the reducing agent in the solution of the redox reaction occurs, the Ni-P alloy coating was deposited on the surface of workpiece, and hydrogen gas. Chemical nickel plating it except the workpiece can be wear resistance and good corrosion resistance, good performance and strong operability, coating thickness, good chemical stability and so. This paper from the reaction mechanism of chemical nickel plating, by changing the bath composition and composition, to determine the influence of velocity, deposition of Ni-P Layer nickel plating solution for the composition and corrosion resistance, porosity, hardness etc.. Also found in the experiment, the quality of coating and plating pretreatment, plating and post-plating process has the very big relations.
Through the test, and ultimately determine the optimal formula. The formulation of the plating rate is about 12 μ m/h, copper sulfate drop experiment time is 101min, the porosity is 0.250 /, and test its morphology. The optimal formula of plating solution, loading capacity, the life of the plating solution and the bath maintenance were studied, which can be produced in industry