can foil stock

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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%.

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Q:What are the characteristics of color coated aluminum coil?
3. Weather resistance: Then coated, high-temperature baking paint patterns, and high gloss retention, good color stability, color change is minimal. Polyester paint warranty of 10 years, 20 years or more fluorocarbon warranty.
Q:Who knows how to choose aluminum foil coating?
Functional coating is a remarkable technological innovation used to conduct surface treatment of the battery conductive substrate. Conductive coating is made up by Nano-sized conductive graphite and carbon, which provides good static conductivity. Micro current can absorb active substance, thus reducing the contact resistance between positive/negative electrode materials and mass flow. Using less adhesion agent, the overall capacity of the battery is improved.
Q:Which products are aluminum foil applied on?
Fourth, the electrolytic capacitor with aluminum foil The electrolytic capacitor with aluminum foil is a corrosive material working in polar conditions, the organizational structure of the aluminum foil have higher requirements, the use of aluminum foil is divided into three types: a cathode foil thickness of 0.015mm ~ 0.06mm; high-pressure foil thickness is 0.065mm ~ 0.1mm, high-purity aluminum foil production requirements; low pressure foil thickness of 0.06mm ~ 0.1mm.
Q:Does some one has ever used the aluminium foil paper to keep the house roof from overheat? How about the effect of this method?
if you consider the high compression capability, you can use the honeycomb pannel as your roof. It is environmental friendly, economically,anti- heat and anti-moisture.
Q:Is the aluminum foil tape resistant to high temperature?
The aluminum foil tape is resistant to high temperature. It is mainly for binding ducts. Heat-resisting and weather-proof are its basic properties. Aluminum foil usually can resist temperature over 300 and most of the tape can resist temperature about 180. As aluminum foil itself conducts heat, it will speed up the loss of heat. Therefore, before wrapping the aluminum foil, you can put some thermal insulation cotton inside.
Q:What's the maximum temperature that high temperature resistant aluminum tape resists?
As for aluminum tape, the aluminum foil can resist high temperature of 300℃ and most tapes can resist temperature of 300℃. 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 use heat-insulated cotton.
Q:What's the highest temperature the aluminum foil and tin foil can resist?
Tin foil paper can resist high temperature. Aluminum foil paper or aluminum foil which is also called tin foil paper in Hong Kong, is a kind of thin sheet of less than 0.2mm in thickness processed by aluminum foil roller. It is mainly used to cook and contain food, or make some kinds of material for cleaning. Tens of and thousands of aluminum foil papers are used to preserve and package food, cosmetic products and chemical products. The applications of tin foil paper are as follows: 1. Prevent food from sticking baking tray; 2. Prevent food from sticking dirty stuff; 3. Convenient to clean baking tray; 4. Package the seasoning and stuffing to prevent them from falling into pieces when baking food; 5. Preserve water and keeping fresh.
Q:Does working in the aluminum foil companies harm the health?
Not working in the production line is not harmful to health. 1.In the normal temperature, aluminium metallicum has no valitility, so it won't enter into the human body easily. 2.the main harm of metal aluminum is the inhalation of dust, for example, working in the production line. 3.taking in solution, for example, a usually usage of aluminium products or having drug containing aluminium ion.
Q:How to prevent aluminum foil from wrinkling?
Due to the strip shape is serious bad, folding formed in the process of aluminum foil coiling or expanding. Its essence is that its tension is not enough to make the box surface flattening. For a device with the tension of 20 mpa, the box surface flatness shall not be greater than 301. When it is more than 301, it will wrinkle inevitably. Due to the rolling aluminum box often bear the bigger tension than follow-up processing, some aluminum foil that just show the bad strip shape when rolling turn to wrinkle when cutting or used after annealing. Main reasons of wrinkling are due to poor flatness controlling, including incorrect roll grinding ,unreasonable roll shape controlling, unreasonable parameter controlling of rolling and cutting process, bad incoming material strip shape and incorrect strip shape adjusting and imperfect precision of sleeve or tube core. Main reasons of wrinkles: The large amount of pressure make the rolling uneven or coiling lack tension. Improper controlling of roll shape or rolling pressure is too low; Uneven thickness of billet, bad flatness or shear wave. Winding shaft precision is not good and the sleeve is not round. Improper control of pressing roller pressure.
Q:Does aluminum foil bag have property of X-ray proof?
Lead is the best material of property of X-ray proof.

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