Aluminium

Application

   It is widely used as construction material. The main advantages of aluminum in that capacity - easy, yielding forging, corrosion resistance (in the air instantly covered with aluminum foil solid Al2O3, which prevents its further oxidation), high thermal conductivity, non-toxic compounds it. In particular, these properties make aluminum is extremely popular in the manufacture of kitchen utensils, aluminum foil in the food industry and for packaging.

   The main disadvantage of aluminum as a structural material - low strength, so it is usually fused with a small amount of copper and magnesium (alloy called duralumin).

   Electrical conductivity of aluminum only 1.7 times less than that of copper, with aluminum at approximately 2 times cheaper. Therefore, it is widely used in electrical engineering for the manufacture of wires, shielding them, and even in microelectronics in the manufacture of wires in chips. The smaller conductivity of aluminum (37 1/om) compared with copper (63 1/om) offset by increases in cross-section aluminum conductors. The disadvantage of aluminum as electrical material is the presence of a solid oxide film makes it difficult to solder.

   Due to the complex properties of widely distributed in the thermal equipment.

   Aluminum and its alloys retain strength at low temperatures. Due to this it is widely used in cryogenic technology.

   The high reflectivity combined with low cost and ease of spraying aluminum makes the ideal material for the manufacture of mirrors.

   In the production of building materials as aerogenous agent.

   Aluminizing impart corrosion and oxidation resistance of steel and other alloys, such as valve piston engines, turbine blades, oil rigs, heat exchangers, as well as replace galvanizing.

   Sulfide aluminum is used for the production of hydrogen sulfide.

   They go study on the development of aluminum foam as a particularly strong and lightweight material.

   As reducing

   As a component of termite, mixtures aluminothermy

   Aluminum is used for the recovery of rare metals from their oxides or halides.