aluminum foil for some application

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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.

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Q:As for the aluminum foil reflecting coating of floor heating, which is better?
Kraft paper aluminum foil reflecting coating of floor heating is better. It uses quality PET aluminum laminated film and non-woven fabric thermal insulated material. Featured by high brightness, good fastness, aging resistance, non-dealumination and no thermo printing, PET aluminum laminated film has been preferred in choosing reflecting coating. Kraft paper aluminum foil reflecting coating is a composite material characterized by water resistance, moisture resistance, smoothness, clear printing, thermal insulation and high reflectivity. By combines the characteristics of traditional polystyrene board with reflecting coating, Kraft paper aluminum foil reflecting coating has the features of both EPE and aluminum laminated film and thus becomes very popular in the market.
Q:What's the national standard for aluminum tape?
Aluminum tape is mainly used for binding cold (hot) gas pipeline in cold (warm) gas engineering and water heater manufacturing.
Q:The classification of aluminum foil
Q:What's the raw materials of high-precision alumimium foil?
It's the high-precision aluminium. Aluminium foil is produced by constant rolling and annealing.
Q:How many years does aluminium foil heat-insulating film can be used?
The aluminizing heat-insulating film can be used 3 to 5 years and pure aluminium can be used 6 to 10 years.
Q:What's the difference between PTP aluminum foil and conventional soft packing used aluminum foil?
PTP aluminum foil can't resist high temperature while conventional soft packing used aluminum foil does.
Q:Who knows how to choose aluminum foil coating?
Choose the brand lacquer. Recently, decoration pollution is often heard . Families worry about the entailing health problems after decorating their house. Therefore, while choosing lacquer, go through the following tips.
Q:the features of aluminum-foil bag
Several features of aluminum-foil bag:(1)a high performance in air resistance, oxidation resistance,water resistance and damp proof. (2)good mechanical performance,good blast performance and good tear resistance.(3)high temperature resistance(121℃),low temperature resistance(-50℃),oil resistance and fragrance lasting performance. (4)match package conditions of food and medicine. (5)heat seal-ability,flexibility and high gas barrier property.
Q:What is the thermal insulation principle of aluminum tape?
Since aluminum is a good conductor of heat, wrapping the tape with aluminum foil does quicken the heat loss instead of heat preservation. Therefore, it's better to wrap with heat-insulated cotton before wrapping with aluminum foil. Actually the thermal insulation cotton preserves heat rather than the aluminum foil which serves as a conductor to outside temperature to protect the inside temperature. It is featured by thermal insulation, waterproofness and corrosion resistance. Due to its extremely low absorption coefficient solar radiation, it can isolate from most of the heat transfer.
Q:Does the aluminum foil belong to metal material
Yes. It is a kind of light weight metal material.

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