What are the effect of aluminium powder

Submitted by admin on Tue, 12/04/2018 - 10:01

Silver-grey aluminum metal, the relative quality of 26.98 points, relative density 2.55, 99.5% purity aluminium melting point is 685 degrees, the boiling point of 2065 degrees, melting endothermic 323 kj/g, aluminum reducibility, extremely easy oxidation, heat emission in the process of oxidation. Oxidation sharply when heat release 15.5 kj/g per gram, aluminium is ductile metals, easy processing. Metal aluminum oxide film on the surface of the transparent membrane, and has good chemical stability.

Aluminium has the silver luster, often mixed with other substances used for paint, brush on the surface of iron products, protect iron products from corrosion, and beautiful. Due to the aluminum in oxygen burning can emit bright white light and gives off a lot of heat, and is often used to make some explosive mixture, such as ammonium aluminum powder, etc. In the metallurgical industry, commonly used thermite to melting refractory metal. 

Such as aluminum and ferric oxide powder, lead after intense reaction occurs, often use this to welded rail traffic; Chinalco are commonly used as deoxidizer steelmaking industry; Bright and clean the aluminum plate with good light reflection performance, can be used to manufacture high quality mirror, concentrated bowl, etc. Aluminum powder has good sound-absorbing performance, according to this characteristic, - some broadcasting room, modernization of large buildings such as some used aluminum ceiling.