Aluminum alloy is the main material used in the manufacture of aircraft.Aluminum alloy and compare with the mild steel making cars, expensive, small density, relative density 2.8, compared with mild steel relative density 7.8, about a third, despite the intensity was similar, but for aircraft, light is the main material, and corrosion resistance is stronger, processing is convenient, so the aircraft aluminum alloy is ideal material.

Aluminum and aluminum alloy are used more and more widely in shipbuilding industry, from small to powerboat big to tankers of ten thousand tons, from sea hovercraft to submarine, from fishing ship to ocean mining ship, aluminum alloy with excellent comprehensive performance is used to produce ship hull, support structure, supporting facilities, pipelines and so on.

Aluminum alloy used in the Marine industry, can make the overall weight of the ship, the use of ship speed, and can resist sea water corrosion of the ship.Aluminium alloys used in Marine industry are mainly aluminum-copper alloy, aluminum-magnesium alloy and aluminum-silicon alloy.Aluminum copper alloys are widely used in Chinese and Russian ships, but their poor corrosion resistance in sea water hinders their development in shipping industry.Aluminium magnesium alloy is mainly used in hull shell, pump conduit, pump shell and machine frame bracket, etc. The grades are 5083, 5086, 5456, 5466, etc.Aluminum-silicon alloy has moderate structural strength, good fluidity, strong filling capacity, easy to produce high density, complex structure parts, such as high pressure valve parts, cylinder block, pump, reducer casing, turbine blades, etc.

Aluminum has a good thermal conductivity, aluminum and aluminum alloy is widely used in the production of chemical equipment in the heat exchange equipment, nitric acid corrosion resistant storage tank, adsorption filter, fractionation tower, pipeline and many lining.Casting aluminum alloy good fluidity, filling ability, small shrinkage rate, not easy to crack formation, corrosion resistant performance is good, its surface can form 3 oxidation 2 aluminium and silicon dioxide protective film), light quality, good mechanics performance is good, a lot of corrosion resistant parts and components used in the manufacture of complicated structure, such as cylinder, pipe fittings, valves, pumps, piston, etc.Aluminum has many special uses in chemical production.Aluminum does not produce sparks and can be used to produce containers for volatile substances.Aluminum is non-toxic, will not cause food deterioration, does not affect the appearance of the commodity, does not corrode the commodity, therefore, aluminum alloy is widely used in the production of food chemical industry related equipment.

Aluminum alloy can be used for metal packaging, which has the following excellent characteristics: good mechanical properties, light weight, high compressive strength, durable, easy to store and transport goods;Good barrier performance, can prevent the sun, oxygen and damp environment damage to the article, can extend the shelf life of the article;Good texture and aesthetic feeling, aluminum alloy used as packaging has metallic luster, good touch feeling, beautiful, improve the quality of goods;Non-toxic and easy to recycle, can be recycled, save resources, reduce environmental pollution.Aluminum alloy is widely used in beer, beverage and other food cans, mostly with stamping and drawing forming structure.Aluminum foil utensils are beautiful, light in weight and good in heat transfer. They are used for the packaging of fast food and have the effect of keeping fresh, taste and non-toxic. They are used by more and more food industry.Aluminum alloy metal hose can be extruded, the contents can be extruded can be used, simple and convenient, often used in paste cosmetics packaging.

Aluminum alloy has high specific strength, light weight, good fluidity, strong filling capacity, good corrosion resistance and low melting point. It is widely used in tractors, locomotive parts, electronic products, medical instruments, architectural decoration and other industries.Aluminum alloy has excellent ductility and is widely used in commodity industry and food industry.In the field of power transmission, aluminum alloy wire made of low cost, light weight, good corrosion resistance, heat transfer and easy conduction, wear resistance, so more and more attention by people.In the field of power transmission, aluminum alloy is widely used, and up to 90% of high-voltage wire materials are aluminum products [10].Aluminum-silicon alloy can be used as a good deoxidizer to reduce the sensitivity of subcutaneair bubbles produced by steel, deoxidizing steel to improve the quality of steel, aluminum-silicon alloy market consumption is large, the annual demand of the country up to one million tons.