Aluminum ingote 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:why can aluminum sheet after oxide film removal react quicker with hydrochloric acid?
the reason is very simple, the original aluminum sheet has a layer of dense oxide film AI2O3, which has prevented the inner aluminum sheet from reacting with hydrochloric acid. but after oxide film removal, aluminum sheet will directly contact hydrochloric acid, generating H2.
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:What temperature needed to keep the aluminium foil spray lacquer having the adhesive force
To judge the adhesive force of oil paint of aluminium paper,we should heat the double paint formulations and the curing agent of the lacquer to 80 degree and 150 degree.
Q:What causes the velocity effect of the aluminum foil?
3, the material is softened deformation of the rolling process. High-speed aluminum foil rolling mill speed, with increasing rolling speed, rolling temperature deformation zone opened higher, according to calculate the temperature of the metal deformation zone can rise to 200 ℃, it is equivalent to a middle of the recovery annealing, thereby causing processing the rolled material softening.
Q:What's the specific gravity of aluminum foil?
The specific gravity of aluminum foil is in the same with that of aluminum ingot, which is 2.7t/m^3 and slightly different according to different aluminum foil material.
Q:why intact aluminum sheet stop quicker than pectinate one in the magnetic field?
while swinging in the magnetic field, intact aluminum sheets will formulate inner eddy current,that is the annular induced current.eddy current will transform the mechanical energy into heat energy, which makes the aluminum sheet stop quickly.but pectinate aluminum sheet can't formulate intact eddy current, so intact aluminum sheet stop quicker than pectinate one.
Q:What are the effects of casting temperature on ductility of aluminum coil?
The tensile strength and ductility increase with the solid solution insulation time, and reach best fit at 1 hour. Continue thermal insulation, and the tensile strength will change little while the ductility will reduce. This is because the solid solution over insulation will cause the work pieces crystallize so that the large crystal reduce the plasticity.
Q:Is aluminum tape fire resistant?
Surely it is fire resistant. Aluminum tape uses quality pressure-sensitive adhesives (PSAs) and has various characteristics such as good stickiness, aging resistance and improved insulation. Aluminum tape with all the seams of the aluminum foil composite paste, the seal and insulation nails puncture wounds repair. Therefore, it is fire resistant.
Q:What are the advantages of decorative aluminum foil?
With the growing popularity of the rapid development of China's construction industry and decorative foil applications, decorative foils there will be a substantial increase in demand. In addition, the use of decorative foil wrapping gifts is very popular in foreign countries in recent years fast development in China is expected to have better prospects.
Q:Does the tin foil paper or aluminum foil paper can protect people from radiation?
tin foil paper has a good gloss finish and heat reflection.because of the protection of tinm foil paper,the cigerate doesn't change with the atimulation of outside world.more importantly, it will not change the smoke influenced by air and humid environment and the tobacco will not be deterioration since the expiration date has been longer.in addition, considering the heat insulation and beautiful design, there is platinum paper in the cigerate box.we may also use tin foil paper when having a barbeque.the paper is wrapped outside,making the food cooking well qiuckly with nice smell and no cold.the grilled lamb in the resturant also wrapped tin foil paper. tin foil paper can conduct the eletricity. it also has the function of heat insulation.in summer, the tin foil paper covers house roof ,which will reflect the 60% sunlight.besides, the space between the tin foil and the roof should have 150~200mm circulated air stratum.

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