Aluminum product for any 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.

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Q:Does aluminum foil bag have property of X-ray proof?
Lead is the best material of property of X-ray proof.
Q:What's the difference between non-backing aluminum foil and backing aluminum foil and what's the features?
Non-backing aluminum foil is the normal aluminum foil, a piece of foil, for example, the aluminum in a bottleneck of top-grade wine. There are tiny holes in the appearance and odor is easily to be leaked. But it is soft and can cover goods in any shape. Aluminum foil with backing: adding a film-like material in normal aluminum foil, for example paper to increase the strength and decrease the leak caused by the tiny holes in the appearence of aluminum foil. The most common example is the piece of thing in cigarette box.It ahs a good sealing performance, especially for odor. 20 years ago, I am the main operator of rough mill of aluminum foil. One machine costs more than 100 million and is with more than 170 kilowatt. It's a good experience of using it.
Q:Are the aluminum foil bag and the aluminum plastic composite bag the same thing?
They are different. the aluminum foil bag (antistatic bag,aluminum foil package bag) the facade of aluminum foil bag: transparent and silver white,barrier property,heat sealability,light prevention,heat resistance, cold resistance,frgarance holding;poisonousless,softness,ect.the stcucture of the product:PET/AL/PET/PE. the aluminum plastic composite bag has many advantages:low cost, beautiful prints;anti-static,ultraviolet-proof,moistureproof,oxygen partition,lightproof,cold-resistance,printing oil resistance,heat resistance,freshness preservetion and leakproofness.
Q:What's the difference between singled-sided conductive aluminum tape and double-sided conductive aluminum tape?
Differences: a) Installation: The heating element of singled-sided conductive aluminum tape is single-stranded solid wire. When installing, the heating element should be connected with temperature controller or other distribution equipment before the heating cable is laid into a loop; Since the heating element of double-sided conductive aluminum tape is double-stranded solid wire, the heating cable itself serves as a loop. Thus double-sided conductive aluminum tape is easier to install.
Q:why does the bubble apear a few minutes later after putting aluminum sheet into dilute sulphuric acid?
Because there is oxide on the surface of aluminum, the reaction will be quicker after polishing the oxide with abrasive paper.
Q:Why some board mounted pills are covered with a layer of aluminum foil?
This package consists of transparent PVC rigid sheet with aluminum foil blister, PVC is currently the most widely used plastic blister pack. PVC barrier is relatively thick aluminum foil 60 microns is worse, resulting in not a long shelf life of drugs. In order to extend shelf life, while the case of pharmaceutical companies without replacing existing equipment, it added outside of large aluminum cover, called tropical aluminum industry.
Q:Does Aluminum foil glass fabric air duct need thermal insulation?
Phenolic-aluminum foil compound air conduct itself has good thermal insulation, due to the phenolic foam in between. It is a little expensive than galvanized steel sheet, but the latter one needs extra insulation. Not necessary. It has in-built insulation, light and easy to install. It is expensive than the galvanized steel air duct, but the latter usually needs the cost of thermal insulation material and labor. By the way, Phenolic-aluminum foil compound air conduct produces dust after using a period of time usually five years.
Q:What equipments are needed to produce aluminum foil bag?
It depends on whether you directly use composite aluminum foil film or raw materials that aren't well composited. If you directly use composite aluminum foil film, you may need dividing and cutting machine and bag machine. If you use raw material,you may need printing press, compound machine,dividing and cutting machine and bag machine.
Q:How does the aluminum foil bag recycle?
The paper box should be thrown to "container",and the aluminum foil bag should also be thrown to "container".the 20% of paper and the 5% of the plastic film should be disposed.the aluminum foil paper also need to be disposed together with the paper and plastic film.the rate of recycle disposal should be reached in the range of 40% to 50%.The PE part of aluminum foil is disposed by the incinerato. Then the disposed material should sent to waste plant.
Q:Is aluminum foil pure aluminum?
Not really, aluminum foil can be devided into pure aluminum foil and aluminum alloy foil.

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