Aluminium Powder - General, Manufacturing Process, Company Profiles, Products, Material Safety Data Sheet, Market, Consultants, Patent, Technology

General Information

Aluminum powder is a light, silvery-white to gray, odourless powder which is available in a range of sizes up to 1mm. It is a reactive flammable material. Moist aluminum powder may ignite in air, with the formation of flammable hydrogen gas.
Aluminum powder (uncoated) is also known as aluminum powder, aluminum, aluminum flake, aluminum metal, metana.

Manufacturing

Atomization is the process used commercially to produce the largest tonnage of metal powders.
Atomisation methods include Rotating Electrode, Vibrating Electrode (arc), Centrifugal (from a melt) and Rapid Solidification (eg aluminium ribbon). However, by far the most commonly used methods are either water or gas atomisation.
Atomisation processes, involving the conversion of a melt into a spray of liquid metal droplets and the subsequent (or simultaneous) solidification and collection of these droplets as a powder, are used extensively powder manufacture.

Applications

Aluminum powders are used in paints, pigments, protective coatings, printing inks, rocket fuel, explosives, abrasives and ceramics; production of inorganic and organic aluminum chemicals; and as catalysts. Pyro powder is mixed with carbon and used in the manufacture of fireworks. The coarse powder is used in aluminothermics.

Market

The global market for powder metallurgy products is currently estimated to be worth in excess of $5 billion per year and is growing at an annual rate of approximately 8-10%. Central to this growth is the need to develop better methods of manufacture and improved understanding of the processes involved in powder production.

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