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 is the international standard of aluminum foil tape ?
Aluminum foil tape can be used for jointing all kinds of aluminum foil composite, sealing the piercing spot of insulation supporting pin and repairing breakages. It is widely used in air-conditioner, automobile, petrifaction, bridge, hotel and electronic industry and to the distribution department a must buy as the major raw and auxiliary materials for producing refrigerator and freezer. It can also be used as thermal insulation material.
Q:What's the aluminum foil?
To put it simply, it is ultra-thin aluminum sheet.
Q:Can microwave oven use aluminum foil?
Ha ha, remember to use microwave oven hot bread, bread packaging with aluminum foil, just started, saw the lightning inside, also heard the sound of quack quack, ha ha, very spectacular
Q:Is the environmental friendly aluminium foil box poisonous
this food box not only meet the standard of national health standard for food containers but also adapt to the international environmental friendly trend. the product can be heated directly on the gas oven and in micro wave oven.
Q:Why doesn't our gas water heater and aluminium foil flue smoke out?
4, it will cause poor smoke exhaust.1:1, no connection with aluminum foil sealing tape, coke and a series of faults, and extends the smoke pipe should be down 3 degrees -5 degrees, the machine high temperature exhaust port cannot be directly connected, the smoke pipe extends outside the glass hole wall and the hole must be sealed, the exhaust pipe connection must be sealed with aluminum foil tape.Case 2.5, you can use high-quality aluminum foil pipe for longer, can not be extended directly outside or can not be used outdoors, and never allow the use of aluminum foil smoke pipe directly out of the outdoor;2, but the elbow directly connected with the smoke outlet of the machine must be equipped with elbow which is randomly equipped when the pipe needs to be lengthened.Case study, once used, will create hidden dangers.Installation requirements, light lead to maintenance:Because aluminum foil smoke pipe has the following shortcomings, a region installation violation caseCase 1;5, smoke pipe and ceiling spacing should be greater than 50mm..
Q:What's the difference between an anode pouch and an aluminum foil bag?
Both sides of the aluminum foil bag are made of aluminum foil composite film, which is opaque; the Yin and Yang bag is an aluminum foil composite film, and the other side is a transparent composite film,
Q:When the foil bag is packed, why does it break 5 when it is steamed?
Foil bag usually refers to the plastic composite packaging bag, divided into vacuum and high-temperature cooking bags, vacuum aluminum foil bag suitable for large precision machinery and equipment, chemical raw materials, pharmaceutical intermediates, moisture, light, vacuum packaging. Three or four layers are adopted, and the utility model has the advantages of good water separation and oxygen separation function. Is not restricted, can bag quantity body is custom-built with different specifications, style, can be made into bag, solid bag, organ bags and other styles.
Q:Hubcaps on aluminum rims?
There is no way you are ever going to be able to put a hubcap on an aluminum rim. If you want hubcaps on your car then you are going to have to buy steel rims. You can get used steel rims at the junkyard for $20 a piece, but they are a little rusty and don't look the best. You want to put hubcaps on, so this won't matter to you. Then you can get hubcaps at your local auto parts store for around $25-50 for a set of 4. You are looking at spending at least $120 for this. You could also go to the junkyard and look for the center caps you need or look on sites like OKorder
Q:What ‘s the thickness of a piece of aluminum substrate copper foil?
Gold-plating, hot air leveling, OSP anti-aging, immersion gold, and unleaded ROHS process. Substrate: aluminum substrate Properties: thin insulation layer, low thermal resistance; nonmagnetic; good heat dissipation; highly-mechanized products. Standard thickness: 0.8、1.0、1.2、1.5、2.0、2.5、3.0mm Copper thickness: 1.8um35um70um105um140um Features: good heat dissipation and electro-magnetic shielding, processing abilities Uses: LED-dedicated power hybrid IC (HIC).
Q:What are the advantages of a decorative foil?
Rapid spread from urban centers in Shanghai, Beijing, Guangzhou and other parts of the country, high-quality decorative foil as a high performance electronic shielding materials and building decoration materials, due to light pollution and overcome the security issues of the glass curtain wall, more and more building decoration industry favor in recent years, a sharp increase in demand, as is generally the inner wall of the building and interior furniture decoration materials, facade and interior decoration business organizations are also widely used.

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