Preparation and Study of the Properties of Aluminum Powders, Suitable for the Manufacture of Powder Electrodes

Abstract

The results of the study of the shape, morphology and elemental composition of aluminum powder particles obtained in distilled water with the following electrical parameters of the electroerosive dispersion unit are presented: the capacity of discharge capacitors is 65 μF, voltage 100 V, pulse frequency 50 Hz. It is established that the powder consists of particles of regular spherical shape (or elliptical), irregular shape (conglomerates) and fragmentation, and the main elements of the powder are aluminum and oxygen. The obtained powder materials can be used for the manufacture of powder electrodes used in welding and surfacing of a wide range of parts.

Industrial Production Technology for Aluminium Paste

“…Aluminium holds a leading position in the global production market; the aluminium industry is one of the most dynamically developing branches of smelting industry [1]. This is because the produced aluminium, thanks to its unique properties (low density, high electrical conductivity and corrosion resistance), finds increasingly widespread use, including in the form of powders and fine powders [2][3][4][5][6][7][8][9][10][11][12], even in industries where it was practically absent before. For example, for a long time it has been known that aluminium in the production of aerated concrete -a material that is highly popular in the construction materials market due to its good thermal insulation and fire resistance [13,14].…”