Aluminum foil for airconditional 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 are the characteristics of aluminum foil?
(3) aluminum foil as a packaging material is odorless, it does not make any packaged food smell. (4) If the foil itself is not volatile, and packaging of its own food will not dry or shrink. (5) whether in high or low temperatures, there will be no grease foil infiltration phenomenon.
Q:Are aluminum foil container poisonous?
Light weight aluminum foil products, the products meet the national food hygiene standards. And recycling convenient, no 'harmful substances in the process, and does not pollute renewable resources. Aluminum lunch boxes for aviation product line more food and retail food cake, update speed consume larger quantities. For a bulk sale. Cake cooking food store and finished food packaging are multiple use foil container. Market wide, wide popularization.
Q:how to remove aluminum-foil paper in the opening of plastic bucket?
Use hot air of hair dryer to blow it, use wet towel to wipe it, use water to steep it or use steel wire ball.
Q:How can aluminum foil classification?
First, according to the thickness Differences can be divided according to the thickness of aluminum foil thick foil, single zero foil and double zero foil. 1. Foil thickness: 0.1 ~ 0.2mm thick foil. 2. The single zero foil: thickness of 0.01mm and less than 0.1mm / foil. 3. The double zero foil: a so-called double zero foil after its thickness is in mm unit of measure of the decimal point two zero foil, usually aluminum foil of a thickness of less than 0.01, namely 0.005 ~ 0.009mm aluminum foil.
Q:Can aluminum foil paper be used in microwave oven?
It is recommended not to use aluminum foil paper which is one of metal. Because when heating with microwave, the metal will reflect and thus influence the cooking effect. The materials that can be used in microwave oven include glass, ceramic, plastic and films.
Q:Does the tin foil paper or aluminum foil paper can protect people from radiation?
I want to tell you that the radiation can not be isolated. it only can be reduced.the radiation you said is computer radiation. can you really buy a thick concret wall in front of you? it may have an impact on your phone signal and net can use a method of refracting-type at 45 degree to reduce radiation(like a fighter to avoid rader radiation.)more
Q:Whether aluminum foil can be used to heat the food?
Aluminum foil is heated to the melting point higher than 660 ℃ began to melt, it can be applied to ordinary grilled foods, baked goods, or even use the traditional Beggar Chicken wrapped in aluminum foil to bake, clean while maintaining the original flavor. Later, after it reduced aluminum, aluminum foil replaced appear in everyday life. However, because aluminum can affect brain development, so the current will be coated with aluminum foil surface coating to prevent release of metallic aluminum.
Q:Does the aluminum foil tray is magnetic material?
The research shows that the external magnetic field of any material may be influenced more or less by magnetization.In accordance with the performance of magnetization,there are five kinds of materials:paramagnetic material,diamagnetic material,ferromagnetic substance,sub-magnetic material and diamagnetic material.Generally speaking, the magnetic material refers to the alloy which produces magnetic material directly or indirectly,like metal,cobalt,nickel,ect..Aluminum belongs to this kind of material.
Q:The applications of aluminum foil
Scrap aluminum foil can be used to make poly aluminum chloride which is a common kind of inorganic polymer flocculants. The broad sources of raw material for manufacturing poly aluminum chloride lay the foundation for its development, especially the diversity of production processes which provides convenience for the development of poly aluminum chloride. International and domestic manufacture and application has scaled up and theory research has gained further development. Manufacturing material mainly include bauxite, aluminum hydroxide and waste molecular sieve catalyst. Manufacturing methods mainly contain wet process and electrolytic process. As some scholars think scrap aluminum foil has high economic value for recycling, they research the best conditions to produce poly aluminum chloride with scrap aluminum foil and the range of application for purifying water via experiments. With the development of industry and the rapid growth of urban population, water pollution is increasingly serious, which lead to more sewage to purify and more purifier to meet the increasing demand. As poly aluminum chloride molecule has different quantities of hydroxyl, it will hydrolyze under the PH condition of the source water and be accompanied with a series of physical and chemical process like coagulation, absorption and deposit after adding poly aluminum chloride to the turbid source water to purify the water. There is a wide source for scrap aluminum foil mainly from the package of cigarette, food and medicine, whose main component is aluminum, so it has high economic and social value to recycle scrap aluminum foil. The best conditions to produce poly aluminum chloride with scrap aluminum foil and the range of application for purifying water have practical significance for the increase of resource utilization rate and environment protection after test and research.
Q:Does the aluminum has good thermal insulation
The theory of aluminium foil thermal insulation is reflecting the light. I suggest that you can use the professional thermal insulation and temperature preservation material(phenolic foam board,rock wool,EPSXPS.ect.) and choose the right material according to the requirements.

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