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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.

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Q:Does Aluminum absorb Radio waves?
Aluminum is a good conductor of electricity. If an object is completely encased in a conductor (forming a Faraday cage), the object will be shielded from radio waves. If the aluminum (or another conductor) covers only part of the object, radio waves may still reach it.
Q:Will aluminum bike frame rust?
No, but take care of it and it will stay looking good too. I keep mine inside. I clean and maintain it all the time! It's almost like a care, the better you take care of it, the better it will run.
Q:Should the aluminum roll be in the direction of the aluminum roll length or width?
Should the aluminum roll be in the direction of the aluminum roll length or width?The width of the road shall not be less than 1.5 times the width of the standard vehicle, and the width of the carriageway shall be at least 7.0M, and the lane shall not be narrower than 4.0M. (County Road, the main road on the standard)As the national standard does not specify the upper limit of the total width of the road, it only specifies the width of the minimum Lane corresponding to different grades of highways.
Q:aluminum vs. steel trailer?
Steel is heavier, which makes the frame sturdier, but having gone from a 1973 Shoop two horse steel bumper pull to a 2008 Wrangler Aspen aluminum three horse slant w/ tack room, the new trailer, at 16', is so much lighter than the old, even with three horses in it. There is a definite savings in gasoline! Our truck never changed. We are still pulling with our 1999 Dodge Ram Lariat 1500 4x4. But we did have a brake box installed in truck! The trailer was manufactured with a brake/fuse box electric brakes.
Q:Why are hard drives made of aluminum?
first I am guessing weight as there are 6 discs in there and just whipping them up to speed of 16000RPM takes some power. And the magnetic factor would play a roll at that speed and you would lose data.. It is not aluminum...it is aluminum alloy. Steel is not cheaper. And as temperatures change the steel would expand more than the aluminum alloy and you would lose your data as it has moved. Just a guess.
Q:Aluminium free baking powder?
Q:Who knows Xingtai aluminum shutter door how much is one square meter?
Aluminum alloy rolling doors more than 10 specifications, prices are not the same, depending on the sample to know the price, the price range is probably between 100--800, a great difference between Oh!
Q:Less energy ~ Aluminum metal vs the ore?
in order to extract the raw aluminum, you have to heat everything and melt it first, then remove the stuff that precipitates out as it cools or forms via chemical reaction with catalysts you introduce. With aluminum cans, you don't have to raise the temperature much above the melting point of aluminum, since it's already the substance in the can with the highest melting point. With aluminum ore, there can be anything in the ore with pretty much any melting point. In particular, if the ore contains an alloy of aluminum and a metal with a higher melting point than aluminum, then rest assured, you will have to raise the temperature of the ore above the melting point of aluminum in order to melt that alloy, In any case, because the maximum required temperature of the smelter needed to melt used aluminum cans is necessarily lower than the maximum temperature required to work with the ore, less energy is required to get aluminum from used cans than from ore.
Q:Classification of aluminium rolls for aluminium rolls
On behalf of 6061, mainly contains two elements of magnesium and silicon, so it focuses on the advantages of the 4000 series and the 5000 series, and the 6061 is a cold treatment aluminum forging product, which is suitable for applications with high corrosion resistance and oxidation resistance.
Q:Why the aluminum sheet crack after?
What I want to add is to choose such welding wires as 5383 or 5183 wire whose magnesium content is higher than 5754 wire. The loss of magnesium due to high temperature in welding process may reduce the intensity of welding area.

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