Aluminum is the most abundant metal element in the earth's crust, ranking third only to oxygen and silicon. The development of three important industries, aviation, construction and automobile, requires that the material characteristics have the unique properties of aluminum and its alloy, which greatly benefits the production and application of this new metal aluminum. It is widely used.
Silvery white light metal. It's malleable. Commodities are often made in rod, sheet, foil, powder, ribbon and filament. An oxide film can be formed in moist air to prevent metal corrosion. The aluminum powder and aluminum foil heat up in the air and burn violently, and emit a blinding white flame. Soluble in dilute sulfuric acid, nitric acid, hydrochloric acid, sodium hydroxide and potassium hydroxide solutions, insoluble in water. The relative density is 2.70. Melting point is 660 â??. The boiling point of 2327 â??.
1.the use of aluminum in the construction industry, because of the stability of aluminum in the air and the excellent appearance after anodizing and is widely used.
2. in the aviation and national defense industry also a large number of aluminum alloy materials.
3. Aluminum cable reinforced by high strength steel wire is commonly used in power transmission.
4. In addition, aluminum and aluminum alloys are widely used in automobile manufacturing, container transportation, daily necessities, household appliances, mechanical equipment and other fields.
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