Aluminium circle 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:how to get aluminum powder?
www.okorder.com sells both iron oxide and aluminum powder. Their CH0174 aluminum makes a great thermite. Way easier to just buy the stuff by the pound than than grinding aluminum cans or breaking apart etchasketches.
Q:Painting home exterior aluminium siding?
while I've never done it, my brother in law painted their aluminum siding. He used paint he bought at sears- go to a paint store, one that only sells paint and pick their brains. He power washed the house, primed it and used a sprayer to apply both the paint and the primer....the house looks like they replaced the siding.
Q:What are the commonly used aluminum plates?
3003: board. Strip foil. Tensile plate, tube. Extrusion tube. Type. Rod. Rod. Cold bar, cold wire, rivet wire, forging, foil, heat sink material mainly used for processing requires good molding property, high corrosion resistance, good weldability and spare parts not only have these requirements, or performance need than the workpiece of 1*** alloy with high strength, such as transportation of liquid tank and tank, pressure tank, storage device, heat exchanger, chemical equipment, aircraft fuel tank, oil pipe, reflective panels, kitchen equipment, cylinder washing machine, rivet, welding wire.3003 aluminum alloy sheet, plate, tube drawing. The extruded tube housing partition, cap, pipe3004 plate, plate, pipe extrusion tube for tensile. As long as the whole aluminum cans cans, for more than 3003 alloy parts, chemical products production and storage device, sheet processing, building baffle, cable conduit, sewer, various lighting components.3004 aluminum alloy sheet, plate mainly used for housing partition, baffle, sewer, the roof of industrial plant5052 plate, plate, sheet, foil, drawing tube, cold processing bar, cold wire, rivet wire, this alloy has good shaping property, high corrosion resistance, weldability and fatigue strength, medium static strength, used in the manufacture of aircraft fuel tank, tubing, and vehicles, sheet metal parts, ship the instrument, street lamp and rivet wire and so on.
Q:which kind of aluminum sheet could be bended after being etched?
general etching materials include stainless steel and copper.
Q:Does aluminum foil insulate food?
It can insulate food, depending on how thick it is or how many layers you use. Aluminum foil is multi-functional: 1) Acts as a lid if you don't have one for any pot or pan. 2) As you mentioned: its a convenient material to cover food. 3) Can be used for lining the drip tray on your stove top for easy clean up. 4) Can be used as a non-stick liner for sheet pans when baking cookies or brownies. 5) Fish can be wrapped in aluminium foil and then steamed in the oven.
Q:Rifle material stainless steel vs aluminum?
You may pick up as much as three or four MPH with a stainless prop. The reason is that aluminum props will flex a bit under power and decrease the pitch where SS props won't. The downside of a stainless prop is that if you hit something solid at speed, you will likely tear out your lower unit. I have owned a bunch of boats and never put a SS prop on any of them. It just wasn't worth the chance for that potential big repair bill. My advice? Have your aluminum prop rebuilt. It's fairly economical.
Q:aluminum recycling: does anyone know how aluminum recycling works?
Aluminum recycling is done by just melting the cans back into molten metal. There are reactions, but those deal with the impurities, not the aluminum. See the reference.
Q:Can aluminum plate protect against radiation?
Two. A brief introduction to radiation:Radiation refers to electromagnetic energy from the source part from the field source and transmitted, then return to the source, energy by electromagnetic waves or particles (such as the Alfa particle, beta particle) in the form of outward diffusion. All objects in nature, as long as the temperature is above zero degrees of absolute temperature, send the heat continuously in the form of electromagnetic waves and particles. This way of transmitting energy is called radiation. The radiation energy radiates straight from the source outward in all directions. The energy emitted by an object through radiation is called radiant energy. The radiation was calculated by roentgen / hour (R). One important feature of radiation is that it is "peer"". A body can radiate radiation to a second object, and at the same time a radiation to a target, regardless of the temperature of the object (gas). The term is commonly used in ionizing radiation. Radiation itself is a neutral term, but radiation from certain substances can be harmful.
Q:why does the bubble apear a few minutes later after putting aluminum sheet into dilute sulphuric acid?
it firstly etches off the oxide on the surface of aluminum, and then reacts with aluminum, generating bubble.
Q:Would alternating layers of Aluminium, Polymers, Styrofoam, and ER Armor be good for tank?
Aluminium has a strength up to 800 N/mm2 (for its best Al-based alloys) while steels can go much higher... about 1400 N/mm2 if I recall well. The problem with aluminium is that is prompt to fatigue break which is not good with something vibrating like a rolling tank armor. Polymers are not strong enough unless you use composite materials, for ex. fibre glass or even better - carbon fibre reinforced. The problem is still that unlike steel, the strength is exceptionally high... in one direction - so pray for the impact to be mostly from this direction.

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