Electrobrush. Drawing, description

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Electrobrush. Tips for the home master

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The metal writing brush is a glass tube filled with an electrolyte that has the ability to seep through the hairline at one end of the tube. From the other end, an electrode is inserted through the plug, connected to a battery from a pocket flashlight and covered with a metal surface. Touching the metal with a brush, we close the circuit, electroplating occurs.

It is better to prepare several of these brushes - for each type of coating its own. For copper plating, the electrode must be copper, and the composition of the electrolyte is as follows: sulfuric acid - 3,5 g, copper sulfate - 9,5 g, distilled water - 100 g (pour acid into water!). Voltage - 1,5 V.

When nickel plating, the electrode is respectively nickel, and the solution can be of two types: nickel sulfate - 4,2 g, ammonium sulfate - 4,2 g, distilled water - 100 g, or instead of ammonium - double ammonium sulfur-nickel salt - 3 g sodium chloride - 0,8 g. A good result is obtained with a current of 0,3 A and a voltage of 3,5 V.

Electrobrush
Electric brush: 1 - hair insert, 2 - cotton filter, 3 - glass tube with electrolyte, 4 - electrode, 5 - cork, 6 - coated object

The metal surface to be coated must be well cleaned with sandpaper, gasoline, washed with distilled water and wiped dry.

With the help of an electric brush, you can very quickly "paint" small objects, make decorative drawings and inscriptions.

Author: A.Ivanov

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