ALUCONATRINER FOIL ALUMIMUN

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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.
It's 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.

It'sthicker 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.

Aluminiumhas 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%.


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).


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Q:How to seal the fourth side at home after buying the three-side-sealed aluminum foil bag.
Q:What's the highest temperature resistance of the aluminum foil ?
Yes.
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:What are the characteristics of aluminum foil?
Aluminum foil having a clean, hygienic and shiny appearance, it can be used with many other packaging materials made of integrated packaging materials, aluminum foil and surface printing results are better than other materials, in addition to aluminum foil as well as the following features:
Q:How can aluminum foil classification?
Third, according to the surface state Press the foil surface state can be divided into one side and smooth on both sides light aluminum foil. 1. The single-sided light aluminum foil: doublet rolling of aluminum foil, shiny side after sub-volumes, - face black hair, so called side light aluminum foil. Side light foil thickness usually does not exceed o. 025mm. 2. The double-sided light aluminum foil: single rolled aluminum foil, two paintings and roller contact with both sides of the aluminum foil due to the roll surface roughness is divided into different mirror two surface light aluminum foil and a general two surface light aluminum foil. Two surface light foil thickness generally not less than 0.01mm. Press plus state
Q:What's the application of double-sided conductive aluminum tape?
Double-sided conductive aluminum tape: Base material: Taking aluminum foil as the base material and then coated with acrylic adhesive, aluminum tape is featured by excellent stickiness and strong adhesion. Characteristics: Characterized by thermal insulation, waterproofing, good stickiness, high/low temperature resistance and easy to tear, double-sided conductive aluminum tape is commonly used for eliminating electromagnetic interference (EMI), isolating electromagnetic wave to human body harm, avoiding unnecessary voltage or current that may influence its function and preventing spontaneous combustion in high frequency transmission of cable and electronic instruments. It applies to computer display, peripheral and transformer manufacturing, pipeline juncture of central air-conditioning, smoke exhauster, refrigerator and water heater. In addition, electrostatic discharge after grounding has a good effect .
Q:The classification of aluminum foil
Q:What's the difference between the cold rolling and hot rolling.
The aluminum foil has no hot rolling and the original billet isn't cold rolling.
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:How to ues aluminum foil container?
Aluminum Foil Container uses: easy to use, easy to shape, health and safety, no smell, no leakage; have good thermal conductivity and uniform heating effect, can be used for oven, oven, steamer and heat sources such as heating directly on the original packaging . Aluminum foil container can withstand temperatures of 240 tall, used in fast food restaurants, take-away match shops, family kitchen, luxury hotels, as well as civil aviation enterprises and packaging food-related service industries.

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