Aluminum foil for lidding use

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Aluminium alloys with a wide range of properties are used in engineering structures. Alloy systems are classified by a number system (ANSI) or by names indicating their main alloying constituents (DIN and ISO).

The strength and durability of aluminium alloys vary widely, not only as a result of the components of the specific alloy, but also as a result of heat treatments and manufacturing processes. A lack of knowledge of these aspects has from time to time led to improperly designed structures and gained aluminium a bad reputation.

One important structural limitation of aluminium alloys is their fatigue strength. Unlike steels, aluminium alloys have no well-defined fatigue limit, meaning that fatigue failure eventually occurs, under even very small cyclic loadings. This implies that engineers must assess these loads and design for a fixed life rather than an infinite life.

Another important property of aluminium alloys is their sensitivity to heat. Workshop procedures involving heating are complicated by the fact that aluminium, unlike steel, melts without first glowing red. Forming operations where a blow torch is used therefore require some expertise, since no visual signs reveal how close the material is to melting. Aluminium alloys, like all structural alloys, also are subject to internal stresses following heating operations such as welding and casting. The problem with aluminium alloys in this regard is their low melting point, which make them more susceptible to distortions from thermally induced stress relief. Controlled stress relief can be done during manufacturing by heat-treating the parts in an oven, followed by gradual cooling—in effect annealing the stresses.

The low melting point of aluminium alloys has not precluded their use in rocketry; even for use in constructing combustion chambers where gases can reach 3500 K. The Agena upper stage engine used a regeneratively cooled aluminium design for some parts of the nozzle, including the thermally critical throat region.

Another alloy of some value is aluminium bronze (Cu-Al alloy).



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:Is the environmental friendly aluminium foil box poisonous
it is healthy, aesthetic and heat preservation at some degree. The aluminium foil food box is surface coating treatment and has no relationship with the thickness of aluminum.
Q:Aluminum / Aluminium?
Just for my two cents, Canadians also pronounce it Aluminum. It is one of those odd words that varies depending on regional usage. If you're looking for some higher reason why spell check is bugging you, its because the spell check software is likely set to English (U.S.) and not English (U.K.).
Q:A question about aluminum?
With a share of 8 %, aluminium is the third most abundant element in the earth’s crust. Thus, the availability of raw material supplies for the production of aluminium is almost unlimited. The common raw material for aluminium production, bauxite is composed primarily of one or more aluminium hydroxide compounds, plus silica, iron and titanium oxides as the main impurities. More than 100 million tonnes of bauxite are mined each year. Bauxite Production Country-------Millions of tons Australia-----44.5 Guinea--------17 Jamaica------2.6 Brazil----------12 China-----------9 India-------------6 Venezuela----4.8 Surinam-------3.9 Russia---------3. Kazachstan--3.4 Guyana--------2.3 Greece--------1.8
Q:What are the functions of aluminum foil in life?
There are also absorbed perm soup oil with foil. Aluminum foil is widely used in heat exchange, isolation layer, and used as a conductive body. Usually, the thickness of the aluminum foil paper bag for beverage packaging, food packaging bag is only 6.5 micro meters. This thin the aluminum layer can maintain the flavor, waterproof, anti-bacterial and anti fouling.It's very common to use aluminum foil trays to carry food, although the foil tray is disposable, but the ingredients are aluminum, which is less harmful to natureSome foods (such as sweet potato, Enoki mushroom etc.) must be wrapped with aluminum foil to avoid burning, burning.
Q:It is an alloy of aluminum foil?
Aluminum foil is pure aluminum metal, an aluminum metal stamping material directly rolled into a sheet, which is similar to the effect of pure silver foil stamping stamping effect, so called false silver.
Q:What's the application of double-sided conductive aluminum tape?
Double-sided conductive aluminum tape: Base material: Taking aluminum foil as the base material and then coated with acrylic adhesive, aluminum tape is featured by excellent stickiness and strong adhesion. Characteristics: Characterized by thermal insulation, waterproofing, good stickiness, high/low temperature resistance and easy to tear, double-sided conductive aluminum tape is commonly used for eliminating electromagnetic interference (EMI), isolating electromagnetic wave to human body harm, avoiding unnecessary voltage or current that may influence its function and preventing spontaneous combustion in high frequency transmission of cable and electronic instruments. It applies to computer display, peripheral and transformer manufacturing, pipeline juncture of central air-conditioning, smoke exhauster, refrigerator and water heater. In addition, electrostatic discharge after grounding has a good effect .
Q:how is aluminum found on earth?
Almost all metallic aluminium is produced from the ore bauxite (AlOx(OH)3-2x). Bauxite occurs as a weathering product of low iron and silica bedrock in tropical climatic conditions. Large deposits of bauxite occur in Australia, Brazil, Guinea and Jamaica but the primary mining areas for the ore are in Ghana, Indonesia, Jamaica, Russia and Surinam. aka its almost always mixed with other elements and need to be refined in order to get aluminum you see in the stores. but look up the Ore Bauxite and youll be able to see a natural unrefined aluminum mixed with oxgens and other stuff
Q:What is Anpuwangxian F/UTP. printed aluminum foil shield?
Eliminate illiteracy:F/UTP: aluminum foil shield shielded twisted pair shielded twisted pair (F/UTP) is mainly used for the traditional shielded twisted pair 8 core twisted pair with external electromagnetic field separation line electromagnetic interference not F/UTP twisted pair 8 core twisted pair coated layer of aluminum foil is 8 core wires, the outer sheath inner foil aluminium foil conductive wire laying root surfaceF/UTP twisted pair is mainly used in five categories, over five categories, six kinds of applications1., look at the number to see, want to know the true and false, to find Amp Corporation consulting inquiry2. know what the new shield means. S/FTP is OKS/FTP shielding wire, screen screen, aluminum foil shield, double shielded twisted pair, double shielding twisted pair is applied to 7 kinds of shielded twisted pair cable products, which are used for six kinds of shielded twisted pair cables
Q:Can aluminum foil paper be used in microwave oven?
Yes. But not all aluminum foil can be heated din the microwave oven. Microwave oven for specialized use is available in the supermarket. It can control temperature to evenly heat the food and prevent nutrition loss. I often use it when making beer fish. aluminum foil fall into aluminum foil for high-temperature cooking and for low temperature cooking. When putting the food wrapped with aluminum foil into the microwave oven, the contact of aluminum foil with inner wall will cause sparks. Therefore, please use it with caution.
Q:Metalic Finish On Aluminum?
If you want to use aluminum, just polish the aluminum using steel wool. Use the coarsest or finest to suit your needs.

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