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In depth information about aluminium

In depth information about aluminium

Aluminium is a silvery white member of the boron group of chemical elements. It has the symbol Al and its atomic number is 13. It is not soluble in water under normal circumstances. Aluminium is the most abundant metal in the Earth’s crust, and the third most abundant element, after oxygen and silicon. It makes up about 8% by weight of the Earth’s solid surface. Aluminium is too reactive chemically to occur in nature as a free metal. Instead, it is found combined in over 270 different minerals. The chief source of aluminium is bauxite ore.

Aluminium is the most widely used non-ferrous metal. Global production of aluminium in 2005 was 31.9 million tonnes. It exceeded that of any other metal except iron (837.5 million tonnes). Forecast for 2012 is 42–45 million tons, driven by rising Chinese output. Relatively pure aluminium is encountered only when corrosion resistance and/or workability is more important than strength or hardness.

Aluminium is a soft, durable, lightweight, ductile and malleable metal with appearance ranging from silvery to dull gray, depending on the surface roughness. Aluminium is nonmagnetic and non-sparking. It is also insoluble in alcohol, though it can be soluble in water in certain forms. The yield strength of pure aluminium is 7–11 MPa, while aluminium alloys have yield strengths ranging from 200 MPa to 600 MPa. Aluminium has about one-third the density and stiffness of steel. It is easily machined, cast, drawn and extruded.

 
Aluminium is remarkable for the metal’s low density and for its ability to resist corrosion due to the phenomenon of passivation. Structural components made from aluminium and its alloys are vital to the aerospace industry and are very important in other areas of transportation and building. Its reactive nature makes it useful as a catalyst or additive in chemical mixtures, including ammonium nitrate explosives, to enhance blast power.
Corrosion resistance can be excellent due to a thin surface layer of aluminium oxide that forms when the metal is exposed to air, effectively preventing further oxidation. The strongest aluminium alloys are less corrosion resistant due to galvanic reactions with alloyed copper. This corrosion resistance is also often greatly reduced when many aqueous salts are present, particularly in the presence of dissimilar metals.

Aluminium is 100% recyclable without any loss of its natural qualities. Recovery of the metal via recycling has become an important facet of the aluminium industry. Recycling involves melting the scrap, a process that requires only 5% of the energy used to produce aluminium from ore, though a significant part (up to 15% of the input material) is lost as dross (ash-like oxide). The aluminum dross can undergo a further process by aluminum dross processing machine to extract aluminium.

Aluminium metal can be used in:

1 Construction (aluminium windows, aluminium door, aluminum profiles, aluminum extrusion, aluminum alloy,siding, building wire ETC)
2 Transportation (automobiles, aircraft, trucks, railway cars, marine vessels, bicycles etc.) as sheet, tube, castings etc.
3 Packaging (cans, foil, etc)
4 A wide range of household items, from cooking utensils to baseball bats, watches.
5 Street lighting poles, sailing ship masts, walking poles etc.
6 Outer shells of consumer electronics, also cases for equipment e.g. photographic equipment.
7 Electrical transmission lines for power distribution
8 Super purity aluminium (SPA, 99.980% to 99.999% Al), used in electronics and CDs.
9 aluminium Heat sinks for electronic appliances such as transistors and CPUs.
10 Substrate materials of metal-core copper clad laminates used in high brightness LED lighting.
11Powdered aluminium is used in paint, and in pyrotechnics such as solid rocket fuels and thermite
12 Aluminium can be reacted with hydrochloric acid to form hydrogen gas.

 

6063 aluminium alloy Uses

6063 aluminium alloy uses

Uses
6063 aluminium alloy is used for architectural fabrication, window and door frames, pipe and tubing, and aluminium furniture.

Welding
6063 aluminium alloy is highly weldable, using tungsten inert gas welding. Typically, after welding, the properties near the weld are those of 6063-0, a loss of strength of up to 30%. The material can be re-heat-treated to restore a higher temper for the whole piece.

Extrusions
6063 is widely used in the production of extrusions – long constant-cross-section structural shapes produced by pushing metal through a shaped die. These include “L” and “U” shaped channels and angles.

aluminium solar frame, aluminium solar rail

Aluminum solar frame, aluminum solar profile

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aluminium extrusion

Aluminum extrusion, a revolution in the aluminum Industry

Aluminium Extrusion - A Revolution in the Aluminum Industry

Aluminium extrusion – A process by which aluminum is forced into a custom made die and results in a constant cross section that utilizes all the properties of the metal.
Aluminum is used in many different industries as it is one of the most versatile and readily available metals on the planet. The benefits of using aluminum to create products are widespread – it is light weight yet very strong and durable, it is an excellent thermal conductor – both to dissipate and reflect heat, it can conduct electricity, it is easily machinable and malleable, virtually impossible to corrode and costs incredibly low! All these aspects show the virtues of aluminum both for the manufacturer and the consumer.
Aluminum extrusion has revolutionized the aluminum industry for many reasons; it has taken away the restraints that held many designs back. Using a die means that any aluminum shape can be created to the designers exact specifications without any loss of constant cross section and tension in the metal. The dies used in aluminum extrusion are cheap to make and they have a long life, which makes them highly cost effective for the manufacturer. Using a die also means that there is no additional machining involved in the process which can result in additional waste and costs, similarly there is no need for fabrication through welding. Welding can create high additional costs that do not decrease significantly through the reproduction of the same part, not only does this take extra labor but also creates more expense as the welding jigs used are often more expensive than the aluminum extrusion die.
Aluminum extrusion has additional benefits to the manufacturer that help resolve the problems of additional costs if using a sand or permanent mould casting. The main one begin that aluminum extrusion eliminates the need for finishing after it is taken from the die. Using other methods produces a very rough finish that requires sanding and polishing before it can be classed as finished. Aluminum extrusion produces a highly smooth surface that does not require any further finishing. Aluminum extrusion is without a doubt the most cost effective and reliable way of creating any design shape using aluminum without having to compromise on anything. It is a huge step for the industry and it means that more complex aluminum designs can be created with ease and to the exact specifications of the designer. Previously to this many designs could not be created due to the restraints of the production process. Today this notion is unheard of due to aluminum extrusion and everything from car parts to tubing can be custom made with ease and reduced costs.
Aluminum extrusion means that a business no longer has to be restricted by what the traditional methods of fabricating aluminum presented them with, now the only limitations are a designer’s imagination.