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:Why chocolate is packaged by aluminum foil?
Also just taken out of chocolate in the refrigerator, do not immediately open, let it warm to room temperature and then substantially open, the outer layer of chocolate will not affect the appearance and taste of the condensation mist.
Q:What is the use of the aluminum tape?
Aluminum tape uses quality pressure-sensitive adhesives (PSAs) and has various characteristics such as good stickiness, aging resistance. and greatly enhanced heat preservation. Various width and length are available for 0.05mm-0.08mm specifications. Aluminum foil tape with all the seams of the aluminum foil composite paste, the seal and insulation nails puncture wounds repair. It is the main and accessory material of refrigerator or freezer and also the necessary material for the sales department of thermal insulated material. Aluminum tape is widely used in refrigerator, air conditioning, automobile, petrochemical, bridge, hotels and so on. Application: Aluminum tape is suitable for all kinds of transformers, mobile phone, computer, PDA, PDP, LED displays, notebook computers, copiers and other electronic products in which electromagnetic shielding is required.
Q:What's the function of aluminum foil glass wool felt?
Glass wool belongs to one category of glass fiber and is a kind of manmade inorganic fiber, using quartz sand, limestone, dolomite and other natural mineral as the main raw material, and chemical raw materials like soda, borax, etc, as auxiliary material. Then in the melt state, it is flung into cotton-like entwined O-fibers with external blow.
Q:What will happen when aluminum foil mirror is folded in half?
When aluminum foil mirror is folded in half, you face will be reflected with two images on each one. It is called reflection, also applying to other objects. The number of faces you will see depends on how many times you fold the mirror. When it is broken, then the image of your face also turn into pieces.
Q:What is the most important flaw of aluminum foil?
Generally believed that the main pinhole and gas content, inclusion, segregation and related compounds. Take effective molten aluminum purification, filtration, helps to reduce grain refinement are pinholes. Of course, using other means to improve the alloying material hardening properties also help reduce pinholes.
Q:How to classify air conditioning aluminum foil?
3.corrosion-resistant aluminum foil Corrosion-resistant aluminum foil surface of the product has a certain anti-corrosion protection layer, air-conditioning heat sheet made with this product are applicable to more serious areas, and significantly improve the life of air conditioning. At the same time due to the heat transfer sheet to improve the corrosion resistance, greatly reducing the generation of surface corrosion powder, thereby improving the quality of ventilation, air-conditioned indoor air purification.
Q:What are the key features and advantages of the aluminum foil food bags?
2, oil resistance and good aroma and particularly outstanding performance 3, excellent barrier properties, barrier properties and strong air, anti-oxidation, waterproof, moisture-proof 4, good sealing performance, high softness
Q:Can aluminum foil insulate heat?
First, to be exact, aluminum foil is reflected sunlight, which will turn to other places of radiation rather than heat, but played a role equivalent insulation. The stronger the more light reflectivity of aluminum foil.
Q:How to make aluminum foil paper?
A method to manufacture aluminum foil paper with forgery-proof watermark is made from paper pulp fiber. The production steps are as follows: Crash the pulp material with hydrapulper and beat with beater with beating degree of 20-70°SR and wet weight ≥0.5g; Add additives to the pulp: Filler 10-40%, sizing agent 1-8%, preservative 350ml/ton; Beating degree of 20-70°SR and wet weight ≥0.5g; Press the watermark net with die sinking, use watermark net at the vat of paper machine, reproduce the pulp into paper sheet with paper machine after being diluted, roll the sheet with calendar, slit the sheet into corresponding specification with slitter and then get the aluminum foil backing paper with forgery-proof watermark. The watermark of this invention is distributed uniformly, clearly visible as well as obviously rough and uneven in surface by touching, which has significant counterfeit effect, so it can be used to package the cigarette. Sovereignty item 1: A method to manufacture aluminum foil paper with forgery-proof watermark is made from paper pulp fiber. The production steps are as follows: a. Beating: Crash the pulp material with hydrapulper and beat with beater with beating degree of 20-70°SR and wet weight ≥0.5g; b. Composite pulp tank: Add additives to the pulp: Filler 10-40%, sizing agent 1-8%, preservative 350ml/ton; beating degree of 20-70°SR and wet weight ≥0.5g; c. Press the watermark net with die sinking, use watermark net at the vat of paper machine; d. Reproduce the pulp into paper sheet with paper machine after being diluted, roll the sheet with calendar, slit the sheet into corresponding specification with slitter and then get the aluminum foil backing paper with forgery-proof watermark; e. Composite aluminum foil with watermark aluminum foil backing paper to make aluminum foil paper with forgery-proof watermark.
Q:How does the aluminum foil's moisture resistivity and corrosion resistance?
It has good moisture resistivity and corrosion resistance, and it has thermal conductivity.it has good heat dissipation and UV resistance. The aluminum foil has good acid-resistance and electric conduction

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