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:how much aluminium is recycled per year?
45% The fact that they can be recycled to produce more cans means there is no excuse for many people to unaware of aluminum recycling. People should also be aware of the benefits that can occur from it. This has created a strong awareness of the recycling nature of cans and this has been a key factor in the growth of this area. In many canteens, dinner halls and corridors across schools and places of work there is a recycling bin. Wherever people can be found drinking from a soft drink can, a specific aluminum recycling bin can be found for cans to be placed in. Compared to the recycling of many other products, it is easier to find a recycle bin. The provisions for recycling soft drink cans have been more progressively tackled and many people are aware of the need to recycle soft drink cans. This has created awareness and knowledge about recycling and this has moved from school to the outside world. One of the major tactics of marketing departments is to target children and get them to pass the message through to all the family. This is usually done in a bad manner but it can also be done promote recycling. You may see people who go around picking up cans that are thrown away without thought and send them to a recycling center. There are some recycling centers that will make payment for numbers of soft drinks that are recycled. This is a way for people to make some money. It would take a phenomenal amount of aluminum recycling to make a fortune. However, it can help the environment and make a small amount of money back so many people can find the motivation to recycle. There are many places that could be a great source of finding soft drink cans that are thrown away: - School playgrounds - The beach - The car park - Parking lots - Busy streets The amount of products that are available to be recycled continues to grow but it is unlikely that they will grow to be more popular than aluminium recycling.
Q:What kind of aluminum sheet can be bent with five millimeters?
Depending on the material, alloy and condition you need, except for the bending performance, the thickness is 5mm, there is no other requirement, and the products that China can meet this requirement are everywhere.
Q:What glue does stainless steel board and aluminium board glue well?
Is the whole surface covered with glue or covered with four sides?What are you asking for?This kind of structure can use more glue,Acrylic structural adhesive, epoxy structural adhesive, silicone structural adhesiveNeed to understand glue, we can communicate,
Q:Bought a House with aluminum wiring?
you will need to speak to an electrician, but the last i heard the wiring is not the problem, the problem is using things like outlets that are not rated for aluminum. copper in the outlet heats up where it joins the house wiring, and the house burns down. when aluminum first came out, some moron forgot to test for that, so there were a lot of a fires. people have mistakenly blamed the wiring. as long as you dont run to home depot and grab the cheapest outlet you see and say this is just as good . you will be fine.
Q:What will affect the performance of the aluminum ingot in the process of casting?
There are two major types of aluminum ingot after industrial application: cast aluminum alloy and wrought aluminum alloy. Cast aluminium and aluminum alloy are used to produce aluminium castings by casting method. Wrought aluminium and aluminium alloy are produced by pressure process. They are plates, belts, foils, tubes, rods, shapes, wires and forgings. According to the national standard "aluminum ingots for remelting by chemical composition is divided into 8 grades, namely Al99.90, Al99.85, Al99.70, Al99.60, Al99.50, Al99.00, Al99.7E, Al99.6E" (Note: Al number is aluminum content). Some people call "A00" aluminum, in fact, is aluminum containing 99.7% purity aluminum, called standard aluminum in the London market".
Q:does Aluminium foil deflect heat or absorb heat?
reflects heat outwards
Q:Aluminum Macbook Question..?
I don't think that there are any other website, but if you go to the apple website and ring them I am sure they will be able to do a better price for you if you ask them nicely. Any apple product is worth the money, I have the new Macbook and it is absolutely amazing=] Hope this helps.
Q:Wonderland hard aluminum
Wrought iron platform made 3 aluminum alloy with a hard aluminumAluminum + granite can also be synthesized
Q:Doesn't the acidity of soda drinks dissolve aluminium cans?
The old tin ones and bottles hurt when you smash them on your forehead
Q:When water continually sprays on the aluminum sheet, how to avoid corrosion of aluminum sheet and keep its water resistance?
Don’t worry about it, after aluminum contacts water or air, a layer of oxide film will generate on its surface to separate aluminum from the water or air and protect it, so it won’t be erosive.

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