The cleaning and electro-plating of metals; . will come out just as bright as ina still solution. Anodes: Anodes are very important in nickelsolutions, owing to the fact that the solutiondoes not readily dissolve the metal, as thisaction takes place only by the aid of the cur-rent, and as nickel sulphate will not conductelectricity easily, and as ammonium sulphatewill, we have combined them and make thedouble salt, and the free sulphuric acid liberatedby the deposition immediately passes to theopposite pole, and attacks the anodes. A largeanode surface is necessary. Cast anodes arepreferable,
The cleaning and electro-plating of metals; . will come out just as bright as ina still solution. Anodes: Anodes are very important in nickelsolutions, owing to the fact that the solutiondoes not readily dissolve the metal, as thisaction takes place only by the aid of the cur-rent, and as nickel sulphate will not conductelectricity easily, and as ammonium sulphatewill, we have combined them and make thedouble salt, and the free sulphuric acid liberatedby the deposition immediately passes to theopposite pole, and attacks the anodes. A largeanode surface is necessary. Cast anodes arepreferable, as rolled anodes are so hard thatmore current is required. Bath: The bath should be slightly condition can be readily told, by testingwith litmus paper. Blue litmus paper is coloredred by acid, and red litmus paper is colored blueby an alkali. Too much acid will cause peeling,and if the bath is alkaline a dark deposit will beobtained. The solution should be kept alwaysat 6K to 7° Be. The Cleaning and Electro-Plating of Metals 21. 22 The Cleaning and Electro-Plating of Metals To Plate Nickel on Aluminum. Polish, clean (using No. 1, 2 ounces per gal-lon), followed by Oakite (>4 ounce per gallon),rinse in cold water, dip into concentrated nitricacid, rinse in cold water, dip into: water, 1gallon; iron chloride, 1 ounce; muriatic, ^ounce; and from this dip rinse quickly and place
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1921
