Aluminum foil for airconditonal

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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 the material of aluminum foil roll?
Aluminum foil roll is a kind of common rollThe roll is an important part of a rolling mill on a steel mill, rolled and rolled by the pressure produced by rolling a pair or a set of rolls. It is mainly affected by static and dynamic loads, wear and temperature changes during rolling.According to the general manufacturing process, due to the chilling effect of metal layer is white tissue (substrate + carbide) roll called chilled cast iron roll; with the above method, but increasing the iron carbon equivalent and mottled structure (substrate + carbide + graphite) roll called infinite cold and hard cast iron roll."Infinity" - derived from the English word "indefinite", is originally defined as "indefinite". It means that the quench layer has no definite boundary on the fracture surface and has been misinterpreted as "infinite". By using the sand lined metal mold and continuing to increase the carbon equivalent, the roll of coarse hemp can be obtained, which is called semi chilled cast iron roll. In all the tissues of the above-mentioned varieties, the graphite is spherical, called the spheroidal graphite cast iron roll, and the compound cast roller is compounded with the word "compound".
Q:Heat of Aluminum?
The specific heat of pure aluminum is 0.23 BTU/lbm- deg F. That is also equal to 0.23 cal/g-deg C So lets see how close this is. 1100 calories/(60g * 70 deg C) 1100cal/4200 g - deg C = 0.262 cal/ g - deg C I believe that to be right
Q:Is the grill foil poisonous?
The foil belongs to the metal material, is not toxic. But it is worth noting that in the past about meat scorched, with tin foil or aluminum foil wrapped food barbecue, but experts suggest that if you want to use tin foil or aluminum foil wrapped food barbecue, do not add sauce, because acid seasoning in May the foil and aluminum foil the tin and aluminum melt out after eating may cause tin, aluminum poisoning.
Q:What‘s the highest temperature aluminum foil can withstand?
Aluminum foil is flexible metal film, not only with moisture, air tightness, shading, abrasion resistance, Paul fragrance, non-toxic and tasteless, and other advantages, but also because of its elegant silver-white luster, ease of processing a variety of colors and beautiful patterns patterns, and thus more vulnerable to people of all ages.
Q:What are some compounds of aluminum?
I can't find any for radon!
Q:Is aluminum foil insulation materials easy aging?
The use of aluminum and high surface reflection characteristics of multilayer aluminum surface reflection can be achieved completely block heat radiation purpose. But through the aluminum surface between the air and the like are still A small amount of convective heat transfer. If you require complete insulation, available multilayer vacuum aluminum reflective insulation structure.
Q:aluminum foil in the toaster oven?
it does but instead of getting hot it melts
Q:What's the characteristics of aluminum shielded twisted-pair?
There are four types of twisted-pair cable shielding: 1. Wrapping four pairs of wires only with aluminum foil; 2. Wrapping each pair of wires with aluminum foil and no metal net outside the four pairs. Since there is only one layer of shielding in outer sheath, it is called single shielded twisted-pair cable. 3. Wrapping four pairs of wires with aluminum foil and meal net; 4. Wrapping each pair of wires with aluminum foil and then add a metal net outside the four pairs. Since each wire has a layer of shielding and there is one layer of shielding in outer sheath, it is called double shielded twisted-pair cable.
Q:What are the uses of aluminium foil paper, tire paper and bronzing paper? Which ones are used in printing?
Letterpress paperA sheet of paper suitable for letterpress printing of books, stationery, and magazine texts. The quantity is 52 grams / square meter and 60/ square meters. There are two kinds of web and flat paper, the smoothness is 30 meters, and the opacity is not less than 88%. Letterpress printing paper is widely used in books and periodicals. It is slightly higher than newsprint and has a longer shelf life, but it is prone to wear out and is not suitable for printing books and periodicals by offset printing. This paper blots easily.Straw boardAlso known as yellow paperboard or cardboard strawboard, with yellow packaging. It is mainly used for the packaging of goods, books and books cover for the lining box. The ration was 200 g / m2 to 860 g / m2. Commonly used are No. 420, 8 grams, 10, 530 grams, 12, 640 grams. Straw boards require firm quality, smooth paper surface and a certain mechanical strength and toughness.
Q:What's the aluminum-foil bag? What's the purpose of it? Is it poisonous? Can it be uesd in food industry?
Aluminum-foil bag is a kind of bag that using the ductility of aluminum and pressed by machine. There are some poisonous metal bags like external packing of capsule,capsule mounting and packing box of milk products.

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