Aluminum for any use

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Aluminium foil acts as a total barrier to light and oxygen (which cause fats to oxidise or become rancid), odours and flavours, moistness, and germs, it is used broadly in food and pharmaceutical packaging. The purpose of aluminium is to make long-life packs (aseptic processing|aseptic packaging) for drinks and dairy goods, which allows storing without refrigeration. Aluminium foil containers and trays are used to bake pies and to pack takeaway meals, ready snacks and long life pet foods.

Aluminium foil is widely sold into the consumer market, often in rolls of 500 mm (20 in) width and several metres in length.It is used for wrapping food in order to preserve it, for example, when storing leftover food in a refrigerator (where it serves the additional purpose of preventing odour exchange), when taking sandwiches on a journey, or when selling some kinds of take-away or fast food. Tex-Mex restaurants in the United States, for example, typically provide take-away burritos wrapped in aluminium foil.

Aluminium foils thicker than 25 μm (1 mil) are impermeable to oxygen and water. Foils thinner than this become slightly permeable due to minute pinholes caused by the production process.

Aluminium foil has a shiny side and a matte side. The shiny side is produced when the aluminium is rolled during the final pass. It is difficult to produce rollers with a gap fine enough to cope with the foil gauge, therefore, for the final pass, two sheets are rolled at the same time, doubling the thickness of the gauge at entry to the rollers. When the sheets are later separated, the inside surface is dull, and the outside surface is shiny. This difference in the finish has led to the perception that favouring a side has an effect when cooking. While many believe that the different properties keep heat out when wrapped with the shiny finish facing out, and keep heat in with the shiny finish facing inwards, the actual difference is imperceptible without instrumentation.The reflectivity of bright aluminium foil is 88% while dull embossed foil is about 80%.

We provide a full range of precision aluminum strip for almost any application. We produce aluminum strip in a wide variety of alloys, including clad composites. Our aluminum strip can be produced in standard dimensions or custom made to your special requirements. We produce both imperial and metric units. We manufacture in compliance with the main international specifications, and tighter tolerances or custom tempers are available upon request. We offer various surface conditions, custom finishes (painting, anodizing, embossing), special processing, and multiple packaging options to meet our customer's unique requirements. The following is a summary of our capabilities.

Manufactured in compliance with the main international specifications and standards, including:  Aluminum Association, ASTM, EN, and DIN.
We can also manufacture in compliance with other international standards including:ASME, SAE, AMS, AWS, FED, MIL, QQ, ISO, BS, AFNOR, JIS and GOST.

Manufactured in compliance with the main international specifications and standards.
Tighter tolerances are available upon request.


Aluminium (or aluminum; see spelling differences) is a chemical element in the boron group with symbol Al and atomic number 13. It is a silvery white, soft, ductile metal. Aluminium is the third most abundant element (after oxygen and silicon), and the most abundant metal in the Earth's crust. It makes up about 8% by weight of the Earth's solid surface. Aluminium metal is so chemically reactive that native specimens are rare and limited to extreme reducing environments. Instead, it is found combined in over 270 different minerals.The chief ore of aluminium is bauxite.

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 important in other areas of transportation and structural materials. The most useful compounds of aluminium, at least on a weight basis, are the oxides and sulfates.

Despite its prevalence in the environment, no known form of life uses aluminium salts metabolically. In keeping with its pervasiveness, aluminium is well tolerated by plants and animals. Owing to their prevalence, potential beneficial (or otherwise) biological roles of aluminium compounds are of continuing interest.

The earliest citation given in the Oxford English Dictionary for any word used as a name for this element is alumium, which British chemist and inventor Humphry Davy employed in 1808 for the metal he was trying to isolate electrolytically from the mineral alumina. The citation is from the journal Philosophical Transactions of the Royal Society of London: "Had I been so fortunate as to have obtained more certain evidences on this subject, and to have procured the metallic substances I was in search of, I should have proposed for them the names of silicium, alumium, zirconium, and glucium."

Davy settled on aluminum by the time he published his 1812 book Chemical Philosophy: "This substance appears to contain a peculiar metal, but as yet Aluminum has not been obtained in a perfectly free state, though alloys of it with other metalline substances have been procured sufficiently distinct to indicate the probable nature of alumina."[69] But the same year, an anonymous contributor to the Quarterly Review, a British political-literary journal, in a review of Davy's book, objected to aluminum and proposed the name aluminium, "for so we shall take the liberty of writing the word, in preference to aluminum, which has a less classical sound."

The -ium suffix conformed to the precedent set in other newly discovered elements of the time: potassium, sodium, magnesium, calcium, and strontium (all of which Davy isolated himself). Nevertheless, -um spellings for elements were not unknown at the time, as for example platinum, known to Europeans since the 16th century, molybdenum, discovered in 1778, and tantalum, discovered in 1802. The -um suffix is consistent with the universal spelling alumina for the oxide (as opposed to aluminia), as lanthana is the oxide of lanthanum, and magnesia, ceria, and thoria are the oxides of magnesium, cerium, and thorium respectively.

The aluminum spelling is used in the Webster's Dictionary of 1828. In his advertising handbill for his new electrolytic method of producing the metal in 1892, Charles Martin Hall used the -um spelling, despite his constant use of the -ium spelling in all the patents[58] he filed between 1886 and 1903. It has consequently been suggested[by whom?] that the spelling reflects an easier-to-pronounce word with one fewer syllable, or that the spelling on the flyer was a mistake.[citation needed] Hall's domination of production of the metal ensured that aluminum became the standard English spelling in North America.

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Q:What is a good replacement for aluminum food containers?
Could you not just recycle the aluminium food containers? Its a lot better than alternatives like plastic.
Q:How many 1220mm*2440mm aluminum sheets can one-ton aluminum coil be sliced to? Thank you.
If it is 1.0mm thick, the coil can be sliced into 124 pieces. For other thickness, please use 124 divide the thickness.
Q:can a person absorb aluminum through the skin, by handling solid aluminum?
aluminum is very biologically unavailable- most forms of aluminium you will come in contact with wont really react with your body. And yes aluminium is actually coated in a thin layer of its own oxide (aluminium oxide) to prevent the entire thing rusting. If it was unsafe to use alot more people would know about it. You are totally fine to grill things in foil and to put foil covered things in the oven!
Q:Can I bake cheesecake in aluminium baking trays?
Should be fine
Q:Pillar vs. aluminum bed stocks?
The flex around the barrel is OK. The pillar bedding and aluminum bedding both perform the same functions, it's just the aluminum frames spread the support out more broadly. These changes came about with the Bean Field rifles, Kenny Jarrett and others trying to get best accuracy. The floating barrel and the composite stock are of the same ideas. To get to the next level of accuracy you should start hand loading for your rifle. If you don't want to do it you can usually find someone who might do it for you if you buy the components and the proper die if needed. I have a Browning A-Bolt that will shoot well with factory stuff, but with my reloads I get 5 shot groups I can cover with a quarter, and that is just off a sandbag not a supported bench rig. If you need better accuracy than even that you really need to put money out for truing and facing the bolt, truing the action, etc. So, I'm thinking you have a very good stock now, changing it isn't going to gain you much, but looking at loading and truing would make more impact, especially the loading and adjusting the Cartridge Overall Length to match your specific rifle.
Q:how do you get aluminium from rocks?
Well, you start with an aluminum rich rock (cheaper to process). The raw ore after physical concentration (removal of secondary minerals) is reacted by an electrolytic process. This means that electricity is used to convert the aluminum ion in the raw rock into the metal aluminum. Sort of like the reverse of a battery, to keep things simple. Aluminum smelters tend to be set up in places with cheap electricity, because the process uses a LOT of electricity. That is why there are several up here in quebec, we have cheap hydro electricity and the government gives decent deals to the smelters on top of the already low market price. Do a search on aluminum smelting to find out more. Not sure what your level of knowledge is so not sure how much you will understand.
Q:Why does galvanic reaction occur so intensely in aluminum vs. copper?
that's a single alternative reaction. The aluminum and the copper swap places, yielding copper and aluminum sulfate. Please notice: the 1st answer describes a chemical equation with nitrate, no longer sulfate. otherwise, this is the perfect format.
Q:What are pros and cons between aluminum and cast iron heads?
only difference is weight and aluminum is easier to repair
Q:can automakers use honeycombed aluminum to strngthen the frames of automobiles?
Cost is everything - if they get enough design margin from a single sheet that is the choice. Especially in fabrication costs. Besides cars are designed to crumple and a honeycomb structure may be too strong to dissipate crash forces as the body deforms in an accident. Aerospace uses that structure for light-weigh performance and can literally eat the extra cost.
Q:Calculate the resistance of aluminium cable of length 1o km and diameter 2mm?
Let ρ be the resistivity of the aluminum cable, A the cross sectional area of the cable and l the cable's length. The resistance R of the aluminum cable is now given by: R = ρ·l / A = 2.7·10^-8·(10·10^3) / (π·r²) = 2.7·10^-8·(10·10^3) / (π·(1·10^-3)²) = 85.9 Ω I guess the tricky part is remembering: R = ρ·l / A but when you realize how intuitive this equation is you don't have to memorize it. The resistance R is proportional to the resistivity ρ, so we must have the following in our equation: R = ρ·k , where k is some value governed by the dimensions of the cable! It is logical that the resistance is also proportional to the wires length l. This is logical when you realize that the longer the wire the more obstacles the electrons will have to pass by! Now we have that: R = ρ·l·c , where c is another value governed now by the cross sectional area (only dimensional property left). If we think of the wire as a highway with cars instead of electrons we realize that there is less resistance (higher speed) when the highway has many lanes and is very broad. From this we realize that the greater the cross sectional area the smaller the resistance. R must therefore be inversely proportional to A. We now have: R = ρ·l / A I hope there are no mistakes here :P

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