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:What is the air conditioner (* inner thread copper tube / hydrophilic foil)? What's the function?
The inner thread tube and the hydrophilic aluminium foil are an effective measure to increase the heat exchange rate. Now many air conditioning manufacturers adopt this technology:1.: Copper rifled tube outer wall is generally smooth, but for the refrigerant gas or liquid, if the increase of internal threads (similar to bullet gun) can accelerate the refrigerant flow rate, thus speeding up the heat transfer rate, improve the energy efficiency of air conditioning products.2.: the hydrophilic foil are often applied to the outdoor unit, the hydrophilic foil is actually an ordinary aluminum foil surface coating of a special coating, its purpose is to speed up the flow of surface condensation water, and play a certain role in anti-corrosion, but better heat transfer from.
Q:Which is good, fiber cloth, aluminum foil tape, pure aluminum foil tape?
Mainly depends on what you do.If it needs explosion proof and strapping, it is recommended that you use fiber cloth, aluminum foil tape. If it is heat conduction, electrical conductivity, shielding, you should use pure aluminum foil tape.
Q:Can aluminum foil isolate wireless signal?
Aluminum can nearly isolate all wireless signal, but it should be wrapt tightly. The shielding effect is also related to frequency.
Q:What cigarette is wrapped in aluminum foil?
Because the foil can effectively moisture-proof, quality and light, easy to transport, and relatively cheap.
Q:Is aluminum foil exactly aluminum foil paper?
Paper stuck with aluminum film made from aluminum can be moisture-proof.
Q:Should the double shielded wires be shielded from the screen?
3. when the cable is used for frequent and serious interference, rodent lightning protection, explosion-proof requirements of the place, should adopt the armored shielded twisted pair cable (patent number: 201020559128.9, beware of fake) ASTP-120 (for RS485 & CAN) one pair 18 AWG 12.3mm, the outer diameter of the cable around. When the utility model is used, both ends of the armour layer are grounded, and the innermost layer shields the earth at one end! The grounding resistance shall not be greater than 4 ohms! "GB 50217-2007 cable design specification" also has a similar expression
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:Overview of aluminum foil
Q:How to classify aluminum foil according to shape?
2. Semi-rigid foil: aluminum foil hardness (or strength) of the aluminum foil rigid foil and soft foil is commonly used for forming. 3. Soft foil: After full annealing after rolling and become soft aluminum foil, soft material, no residual surface. Most applications, such as packaging, composite, electrical materials, use soft foil.
Q:Is the aluminum foil tape radiation proof?
All I know is that copper foil can protect against radiation. Aluminum foil hasn't heard.

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