Aluminium circle for some 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's the difference between 6061 aluminum plate, 7075 aluminium plate and 6063 aluminum plate?
7075 T6 hardness in 150HB, hardness is highestUsually 6061 and 6063 can be common
Q:after putting aluminum sheet into the area between magnet and iron products, could magnet attract iron again?
magnet can attract iron if the aluminum sheet isn't too thick. Because aluminum can't cut off magnetic line of force, unless aluminum sheet's thickness surpass the range of magnetic attraction.
Q:What are the commonly used aluminum plates?
Three 3000 series aluminum representing 30033003 3A21. Also known as China's 3000 series aluminum antirust aluminum production process is more outstanding.3000 series aluminum is made of manganese as main components. The contents of 1.0-1.5 in between. Is a series of anti rust function better. Routine application in air conditioning, ice box, car etc. in the moist environment, price more than 1000 series, is a commonly used alloy series.Four 4000 series aluminum on behalf of the 4A01 4000 series aluminum plate belongs to the high silicon content series. Usually silicon content between 4.5-6.0%. Belongs to the building material, mechanical parts, forging materials, welding materials; low melting point, good corrosion resistance of the product description: has the characteristics of heat resistance, wear resistanceFive series of 5000 representative 5052.5005.5083.5A05.5000 series is a commonly used aluminum alloy aluminum series, the main elements of magnesium, magnesium content in 3-5%. Also called aluminum magnesium alloy. The main characteristics of low density, high tensile strength, elongation rate is high. In the same area under the weight of the aluminium magnesium alloy is lower than that of the other series. It is commonly used in aviation, such as aircraft fuel tank. The application in the conventional industries are more widely. The processing technology for slab continuous casting and rolling, which belongs to the aluminum plate series so can do deep processing of aluminum oxidation. More mature system in our country in 5000 series aluminum one.Six series of 6000 representatives of 6061 mainly contains two elements of magnesium and silicon, so the advantages of 4000 series and 5000 Series 6061 is a cold forging processing of aluminum products, suitable for applications in corrosion resistance, oxidation resistance requirement. Use good interface features excellent, easy coating, processing is good. Can be used for low pressure weapons and aircraft joints.
Q:how to distinguish the physical property of copper sheet from the one of aluminum sheet?
physical property: copper sheet: golden, heavy, aluminum sheet: white, light.
Q:Does molten aluminum stick to steel?
Unless the surface was specially prepared the aluminum won't bond to the steel. To be sure it doesn't, simply 'smoke ' the steel with a candle etc. (thin layer of carbon black), to ensure no bonding. Your problem will come from the different co-efficients of expansion. The aluminum will shrink more than the steel in cooling and will grab that rod very tightly. Your hole, ( therefore your rod), will have to have a considerable taper if you ever hope to drive that rod out of the casting. Caution- You are aware that most aluminum alloys will burn in air at pouring temperatures aren't you?
Q:Will a polished aluminum bicycle frame rust?
Pool handrails are more likely to be made of fairly high grade stainless steel than aluminium, so a different chemistry. And to be picky, rust is a word usually used for steel and iron only. So, while aluminium might not rust, it can certainly corrode, under the right circumstances. People using trainers have reported issues with their sweat doing damage to their bikes for instance.
Q:Bauxite ore contains aluminum oxide...........?
That's a good question, I was wondering the same thing myself
Q:How do you calculate the price and weight of aluminum sheet?
Aluminum prices this year. The best SWA seems to nearly 500 square meters.In more detail, you'll have to ask the supplier
Q:aluminum recycling for cash in solon ohio
Aluminum okorder.com
Q:Can aluminum plate be welded?

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