Aluminum light gauge foil

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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:Does some one has ever used the aluminium foil paper to keep the house roof from overheat? How about the effect of this method?
if you consider the high compression capability, you can use the honeycomb pannel as your roof. It is environmental friendly, economically,anti- heat and anti-moisture.
Q:How does aluminum foil tube specifications can be classified?
It's my pleasure to answer your queations. It can be divided into food grade pu and texture silica gel material. Specification of pu steel wire hose: Stainless steel hose manufacturer to reduce production costs and enhance the competitiveness of the hose, they usually use 212 rolled steel to replace 304 stainless steel to process production. Due to the quality of stainless steel pipe's heavy quality, not easy to bend, easy to produce retention, it is not easy to use. So that lighter pu texture that can meet the requirements of food grade is more favored by the customers. Pu texture food grade tube adopts food grade PU texture and high temperature extrusion process, taking stainless steel wire as skeleton. Hose is light, flexible and smooth inside and outside, which can prevent microbes from breeding. The diameter of hose varies from 25 mm to 100 mm, fully meeting the needs of various industries. It can be widely used in food processing, beverage, drinks, fruit juices, edible oil, spices and other industries.
Q:What are the advantages of aluminum foil?
Compositing aluminum foil thermal insulation material uses the latest international technology of rubber and plastic modification and introduces world-leading technology and equipment of permanent aluminum foil composite, which is rubber and plastic compositing thermal insulation material of international advanced level.
Q:The development and the market situation of aluminum foil packaging.
Foil packaging began in the early 20th century, when the aluminum foil packaging materials as the most expensive, only for high-end packaging. 1911 Swiss confectionery company began to use aluminum foil packaging chocolate, foil and gradually replace the popular 1913 US aluminum basis for success also started on the production of aluminum foil, mainly for high-end goods, life-saving supplies and chewing gum packaging. In 1921 the United States successfully developed aluminum foil paperboard used mainly as decorative panels and advanced packaging folding cartons. 1938 heat sealable aluminum foil paper published. during World War II, as military aluminum foil packaging materials developed rapidly. in 1948, the use of molded aluminum foil packaging food .20 1950s, aluminum foil, plastic composite materials began to develop. By the 1970s, with color printing technology matures, aluminum foil and plastic composite packaging entering a period of rapid spread.
Q:What's the meaning of 13*18 4 of aluminum bag
The width should be shorten 1-2CM,the self-styled self-reliance aluminum foil bag should be 13cm*18cm+4cm.the calculation of length should be shorten 2,including the pressing seal.
Q:What causes the pinholes of the aluminum foil?
Pinhole is the major drawback of aluminum foil. Raw material, the upper roll, rolling oil, even to the dust in the air is about the size of 6μm enter the roll gap will cause pinholes, so 6μm foil pinholes is impossible, only the number and size of its evaluation.
Q:What are the classification of aluminum foil compound insulation material?
There are a variety of insulation materials with wide application. The commonly used ones include glass cotton products, heat insulation blankets and heat-insulated foam glass, polyurethane foam glass, etc. The glass cotton products are used in air conditioning insulation, duct insulation, polyurethane foams, extruded polystyrene board, molding of polystyrene, Bakelite resin, mineral fiber products, polyphenyl granule size, compound wood, soft wood, etc. Polyurethane foam is currently a kind of insulation material with minimum coefficient of heat conductivity of 0.018~0.024W/(m·k)in building insulation.
Q:What is the most important flaw of aluminum foil?
Although many types of defects in aluminum foil rolling, but in the end mainly as: A hole is characterized by a pinhole, roll eyes, slits, airway; to surface conditions characterized by oil, gloss uneven oscillation marks, tension lines, water spots, highlights bright spot; to processing procedures after the impact plate shape, wrinkling, discounts, bad winding; characterized by thick in size and poor. In essence, the unique aluminum foil pinhole defects only one category, several other defects plates also have different manifestations or severity only requirement is different.
Q:What is carbon coated aluminum foil?
In fact, we see the "nano" word, no doubt to be sure, coated carbon foil is an advanced breakthrough technology innovation, so easier to save battery power, power loss is smaller, significantly improving the overall performance of the battery .
Q:How does laminated aluminum foil produced?
It's the salivate process. Pouring plastic melts into the aluminum foil when aluminum is reserving. Through multi-roll milling, a compound packing film with uniform thickness is produced.

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