Bright brush plating nano-chromium solution and preparation thereof
An electric brush plating and nanotechnology, which is applied to electric brush plating solution, the preparation of the bright electric brush plating nano-chromium solution, and the field of bright electric brush plating nano-chromium solution, can solve the problem of low wear resistance, poor brightness, and reduction of electric brushing. The concentration of chromic anhydride in the chrome plating solution has the effect of broadening the scope of the process and promoting the application.
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[0056] Example 1
[0057] Pour 200g of chromic anhydride into a beaker, add 1000ml of distilled water, measure sulfuric acid into the beaker, the concentration ratio of sulfuric acid to chromic anhydride is 1:100, stir with a magnetic stirrer to form a mixed solution, and then add 6g potassium iodide, 13g trichloroacetic acid, and 3g fluorine. Sodium sulfide, stir until all dissolved, filter, and get ready.
Example Embodiment
[0058] Example 2
[0059] Pour 300g of chromic anhydride into a beaker, add 1000ml of distilled water, measure sulfuric acid into the beaker, the concentration ratio of sulfuric acid to chromic anhydride is 1:100, stir with a magnetic stirrer to form a mixed solution, and then add 8g potassium iodide, 15g trichloroacetic acid, and 5g fluorine. Sodium sulfide, stir until all dissolved, filter, and get ready.
Example Embodiment
[0060] Example 3
[0061] Pour 250g of chromic anhydride into a beaker, add 1000ml of distilled water, measure sulfuric acid into the beaker, the concentration ratio of sulfuric acid to chromic anhydride is 1:100, stir with a magnetic stirrer to form a mixed solution, and then add 7g potassium iodide, 14g trichloroacetic acid and 4g fluorine. Sodium sulfide, stir until all dissolved, filter, and get ready.
[0062] The invention is used for brush chrome plating. The following table lists the performance test data of the chromium plating layer under the conditions of electroplating chromium, existing brush chromium plating and the chromium brush plating of the present invention.
[0063] Table Chrome coating performance
[0064] Test items
[0065] Hardness (HV)
[0066] The above table shows that compared with the conventional brush plating of chrome, the relative brightness of the chrome plating layer is greatly improved, the plating layer is bright, the crys...
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