Airconditional aluminum foil

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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:Aluminum vs. Aluminum alloys?
pure aluminum resist corrosion better than alloy,but alloy is stronger That is why there is Alclad aluminum which is aluminum alloy covered with a thin coat of pure aluminum. But unfortunatley the pure aluminum is suciptable to scraches.
Q:What's the application field of aluminum foil?
Aluminum foil can be used to roast fish and meet, pack dim sum and snacks, reserve leftovers, decorate items and clean.
Q:What's the highest temperature resistance of the aluminum foil ?
Yes.
Q:What is the density of Aluminium Bronze?
aluminium is a metal... it has a valency of 3.. it has got all the props that a metal has for eg : lusturous, good conductor of heat and electricity..etc etc.... it is highly electropositive metal. it has emptyd orbitals and thus can borrow electrons and attain a stable confugeration... as its compounds are elctron deficient..! its compounds such as AlCl3 etc act as a lewis acid..the hybridisation state of Al is sp3d2... aluminium forms a thin protective oxide layer which prevents its further corrossion.. and this is also the reason y they do not react with weak acids.. Al is amphoteric(it reacts with acids as well as base) Al reacts with halogen to form trihalides... Al's covalency can be expected beyond 4 due to the presence of empty d orbitals...
Q:Advantages and disadvantages of aluminium film and aluminium foil film for waterproof coiled material
1, at present our waterproof material standard seems to have no aluminum foil surface waterproof coiled material, the original self-adhesive coil has a variety is aluminum foil, before, it seems that SBS modified asphalt roll also has a kind. The thickness of aluminum foil affects the mechanical properties of the coil, and can not be compared without standard.2, aluminum film is in PE or PET plastic film on the aluminum plating, and its essence belongs to plastic film, in exposed use, generally two years plastic film will aging, completely lost the original reflection effect.
Q:How to make the aluminum-foil paper fit sealed plastic cap?
Using an iron to heat them up
Q:what is the price of aluminum foil cover glass wool board ?Aluminum foil cover glass wool board with thermal insulation. Aluminum foil cover glass wool board with acoustic panel
1,glass wool board 50mm aluminum foil cover glass wool board fire insulation wool KTV-dedicated sound insulation glass wool cotton.
Q:calculate the heat required by aluminum in KJ/g.?
Aluminum specific heat: 900J/(kg*K) Your answer will have units of kJ, not kJ/g. Aluminum's specific heat in kJ/g is simply 9.0x10^-4. Energy required to heat 1kg of Al from 25 degrees C to 415 degrees C: 900 * 1 * (415-25) = 351kJ
Q:Why is hydrophobic aluminum foil used in air-conditioning bad performance?
Hydrophobic aluminum foil above the water, the water will always hang on the foil, relatively speaking, reducing the air flow between the aluminum foil, so that the heat exchange rate decreased. Therefore, the air-conditioning is used "hydrophilic foil", as soon as there is condensed water flow away, does not affect or as little as possible affect the heat exchange rate.
Q:How does aluminum foil help radio waves in real life?
Sometime you need to keep a signal inside and interference outside. Take a close look at your cable TV wire. There is likely foil between the outside plastic shield and the inside wire. The signal going down the wire is within the RF band and the foil helps insulate it from outside noise. There are many applications where you need to shield devices, wiring is just one example. Good luck!

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