Aluminum foil for airconditioning

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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 to make the aluminum-foil paper fit sealed plastic cap?
Don't touch it after seal and put it in a relatively quiet place. In this way, it isolates from the outside world and becomes a vacuum. Taking care of articles when reserving.
Q:Are aluminum foil container poisonous?
Aluminum foil, with outstanding barrier properties, under the premise of a sufficient thickness of aluminum foil, substantially completely gas and moisture barrier, thus, in plastic flexible packaging materials, aluminum foil is commonly used as barrier material and a lightweight aluminum, and sealed package Overturn good range of benefits. Mainly health, beauty, but also holding on to some extent.
Q:What's the use of aluminum tape?
It is used for fire resistance. Aluminum tape is made by pasting aluminum foil, glass fiber cloth and silicone paper with acrylate adhesive by using unique techniques. It is often used in thermal insulating and fire resistant surface of HAVC air-line system, sealing the puncture of bar for line and damage repairing of fire resistant aluminum foil glass fiber surface and thermal insulation of automobiles, train carriage and ship pipelines.
Q:In which way does composite aluminum foil achieves heat insulation?
The features: the first aluminum foil layer(1), the second aluminum foil layer(3)and plastic film layer (2) bond together. Plastic film(2) is between the first aluminum foil layer(1)and the second aluminum foil layer(3). This utility model composite aluminum has good strength,toughness,shock resistance and high ability of acidproof and alkaliproof. It is also with property of gas insulation,thermal insulation,ultraviolet ray insulation and radiation protection.The outside two layers of composite aluminum foil is aluminum foil, which appearence is like the current monolayer aluminum foil and with the same property with it. It can save the material costs and is the ideal substitute of monolayer aluminum foil.
Q:How to prevent aluminum foil from wrinkling?
Due to the strip shape is serious bad, folding formed in the process of aluminum foil coiling or expanding. Its essence is that its tension is not enough to make the box surface flattening. For a device with the tension of 20 mpa, the box surface flatness shall not be greater than 301. When it is more than 301, it will wrinkle inevitably. Due to the rolling aluminum box often bear the bigger tension than follow-up processing, some aluminum foil that just show the bad strip shape when rolling turn to wrinkle when cutting or used after annealing. Main reasons of wrinkling are due to poor flatness controlling, including incorrect roll grinding ,unreasonable roll shape controlling, unreasonable parameter controlling of rolling and cutting process, bad incoming material strip shape and incorrect strip shape adjusting and imperfect precision of sleeve or tube core. Main reasons of wrinkles: The large amount of pressure make the rolling uneven or coiling lack tension. Improper controlling of roll shape or rolling pressure is too low; Uneven thickness of billet, bad flatness or shear wave. Winding shaft precision is not good and the sleeve is not round. Improper control of pressing roller pressure.
Q:Why aluminum foil should be used in capacitor material of distributors?
The normal metal capacitor, especially CBB21/,DV/, impulse current of its turn-off voltage is very high. The capacitor material of distributors, if the distributors of ignitor can't bear such high impulse current. Using CBB28 or CBB8,in which the capacitor can bear a higher impulse current.The ratio of DT is higher.
Q:the features of aluminum-foil bag
The main material structure of aluminum-foil bag: pet/ny/al/pe(the normal package) pet/ny/al/cpp(thermophilic digestion).Waterproof,dampproof,anti-static,anti-electromagnetic interference,high mechanical strength,high thermal sealing property,wide product fraction of coverage,widely used in cosmetics,facial mask,medicinal materials,drugs,solutions,foods,PC boards,IC integrated circuit,CD driver,hard disk,LCD components,welding material,electric products,circuit board,a good sealing perfromance,high barrier degree,low oxygen transmission rate and low moisture permeability,moistureproof,antifouling,anti-radiation and anti corruption,high mechanical property,high blast resistance,good tear resistance, thermostability, low temperature resistance, elegant appearance, match package conditions of food and medicine(vacuum supply)
Q:What is air conditioning aluminum foil?
Aluminum foil for the production of large-scale air-conditioning heat exchange fins in China has 20 years of history, the past 10 years has been more rapid development. As China's economic development and people's living standards continue to improve, air conditioning penetration has increased annually. Depending on the thickness of the sheet and plate can be divided. GB / T3880-2006 standards set forth in a thickness of 0.2 mm or less is called 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:can use aluminum foil to shield the loudspeaker box wire?
It does little help. In principle, since the loudspeaker wire is the terminal of audio device, common interference will not influence its sound effect. Therefore, a shield is not required. Common wires for strong electricity should be laid by poling. However, the wires for weak electricity such as telephone wire, reticle, TV wire or audio wire should be laid through other pipelines. Thus it has little correlation with strong electricity wire with smaller interference. When laying the loudspeaker wire near to the strong electricity wire or laying them at the same time, the insulation between the loudspeaker wire and strong electricity should be taken as a priority. It is recommended to lay the loudspeaker wire at a distance from the strong electricity wire in case of electric leakage.

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