Aluminium foil manufacturing process

  The aluminium foil manufacturing process consists of smelting, rough rolling, intermediate rolling and aluminum foil blank rolling.

  Smelting

  Aluminium ingots are placed into the furnace to get smelted, and aluminium liquid flows into the casting mill through the launder, during which the the refiner A1-Ti-B is added to form a continuous and uniform refining effect. Gases and slags get removed constantly and uniformly by the graphite rotor.

  Rough Rolling

  The aluminum liquid from the first step becomes a billet. The temperature of inflow water in the inner cavity should be kept between 20 and 23 degree centigrade, and that of outflow water between 28 to 32 degree centigrade. The static pressure of the aluminum melt between the rolls is controlled at 0.004-0.005mpa, so as to ensure that the crystal direction {100} of the material is more than 95%, the grain size is less than 5um, and the slab of 6.5-7.5mm is rolled.

aluminum foil manufacturing process

  Intermediate Rolling

  The above slabs are rolled again by cold rolling mill. When the thickness reaches 4.5mm, they are sent to the annealing furnace. After heating to 360 ℃ and holding for 2 hours, they are continuously heated to 580 ℃ and holding for 18 hours. Homogenization annealing is carried out to make the grain size uniform and consistent in direction. Then, the slabs are continuously cold rolled to 0.60mm in cold rolling mill and sent to annealing furnace again, heating to 460 ℃ and holding for 5 hours. When the they cool down to 400 ℃, have them heat preserved for 7 hours to conduct intermediate annealing, and then continue rolling them to 0.3mm thick.

  Aluminum Foil Blank Rolling

  This step uses the four roll irreversible foil rolling mill to roll the above 0.3mm aluminum foil blank into the finished aluminum foil product.

  The aluminium foil manufacturing process above is short and cost efficient. It enables you to produce ultra-thin aluminum foil of advanced level with a small investment scale. Compared with the hot rolling production process, the investment cost is reduced by two-thirds and the operation cost is reduced by more than half.

Haomei supplies aluminium foil 8011, 8021, 1-7-, 1060, 3003 and 8079 of all regular specifications. Welcome to contact us for more information!

Anti-rust measures in storing aluminium foil roll for food

  Because of its excellent performance, an aluminium foil roll has a wider range of applications in life. At present, commonly used aluminum foil rolls are of grades 1060, 1235, 3003, 8011, 8021, 8079 etc., which are widely used in food, beverage, and pharmaceutical packaging materials, and which have good applications in industrial fields such as electrolytic capacitor materials and lithium ion batteries.

  The most advantageous performance of the aluminum foil roll is used as a packaging material. It has the characteristics of good barrier property, strong light-shielding property, high mechanical strength, air-tight moisture-proof, heat preservation and fragrance-free, safe and non-toxic. With the rise of the packaging industry, the demand for aluminium foil for food packaging is increasing year by year. At the same time, 8011 aluminum foil and 8079 aluminum foil are often used as materials for high-grade pharmaceutical packaging. Also called aluminium foil paper, an aluminum foil is a soft metal film, often in the form of aluminum foil coils. The safe storage and anti-corrosion measures of aluminum foil rolls are very important. Let’s take a look at how to do it.

aluminium foil roll for food packaging

  1. The packaging of aluminium foil for food should be sealed and the appropriate amount of desiccant should be placed in each roll to ensure no water in the compressed air.

  2. Strictly control humidity and temperature. The humidity of the wooden shaft and the box board of the package is not more than 18%, and the temperature of the packaged aluminum foil roll is not more than 45 °C.

  3. Strengthen the management of rolling oil and control the water content of rolling oil.

  4. When transporting from a low temperature area to an area with high temperature and high humidity, do not open the sealed package immediately.

  Haomei Aluminum is a professional aluminium foil paper manufacturer and exporter. It supplies aluminium foil for food packaging, medicinal aluminum foil roll, aluminum foil rolls for lithium ion battery, air conditioning foil, cable foil, container foil and other products. It is the top ten aluminum foil manufacturer in China, offering stable quality and favorable price. Welcome to contact us.

Aluminium Foil Thickness

  How thick is aluminium foil? Generally aluminium foil thickness ranges between 0.009mm and 0.2mm. In practice, there is even 0.5mm. Different thicknesses match different aluminium foil uses. Here we will give a detailed introduction to thickness of aluminium foil.

  How Thick is Aluminium Foil

  The aluminium industry divides its products by thickness into aluminium sheets and aluminium foil rolls, in which it regards sheets with a thickness below 0.2mm (sometimes even 0.1mm) as foil materials. If you do a careful research, however, you will find that the thickness of aluminium foil reaches 0.5mm and even more in some practical uses. Thus the thickness range is developing with technology and process. Thinner and thicker foil rolls are produced nowadays. Here we list aluminium foil thickness ranges related with different uses.

  Aluminium Foil Thickness and Its Uses

  A. Food container aluminium foil

  The thickness of food container aluminium foil is generally between 0.03mm and 0.20mm, and can be divided into wrinkle and wrinkle-free. In fact, it is a 3 or 8 series aluminum ingot raw material. After cold rolling or hot rolling, it has a uniform thickness, smooth surface, no pinholes, no dust particles, no odor, aluminum foil parent roll. The production process is a one-time automatic cold stamping forming of special equipment and molds. Alloys available for food container aluminium foil rolls are 8011, 8006, 3003, 5052, 3004 aluminum foil.

aluminium foil thickness

  B. Medicinal aluminum foil

  PTP medicinal aluminum foil: alloy 8011 aluminum foil, state O, H18, thickness 016-0.5mm

  Blister medicinal aluminum foil: 8021 aluminum foil, state O, thickness 0.04-0.065mm

  Tropical medicinal aluminum foil: 8021, 8079, state O, thickness 0.016-0.2mm

  Aluminum foil for medicine cover: 8011 aluminum foil, state H14, H16, thickness 0.016-0.5mm

  C. Aluminum foil for aluminum foil bags

  The raw materials of aluminum foil for aluminum foil bags are mainly 1 series, 3 series and 8 series products, mainly including models 1060, 1100, 3003, 8011, 8021 and the like. According to the requirements of the packaged products, the hardness and hardness of the alloy, that is, the alloy state, are selected, and the commonly used states are H14, H16 and H18. The thickness of aluminium foil rolls ranges from 0.014mm to 0.2mm.

  D. Sealing liner aluminium foil

  The sealing liner aluminium foil thickness ranges from 0.016mm to 0.5mm. Aluminum sealing liners are non-toxic and odorless. In addition, it has a good antibacterial ability. Generally speaking, microorganisms cannot grow on it, for the surface is clean. Further more, aluminum gaskets made of aluminum foil rolls are opaque, so it is very protective for solar light sensitive products.

  E. Transformer aluminium foil

  The transformer aluminium foil is better known as transformer aluminium strip 1060 in the international market, simply because it’s usually made into the shape of strips. Its thickness ranges from 0.2mm to 3mm.

Two types of aluminium foil packaging

  There are two types of aluminium foil packaging. One type is to wrap food or objects with aluminium foil jumbo roll (or made into aluminium foil trays or containers), the other with aluminium foil bags.

aluminium foil packaging

  Aluminum foil paper is usually used for food packaging (such as aluminum foil paper tray). It is used to grill food like bean sprouts and sweet potatoes at a barbecue to avoid burning. Sometimes used for decoration. Modern aluminum foil paper is made of aluminum and can also be used as an aluminum electrode for electrolysis. There are also hair stylists who use perm foil to perm for guests. Some people also use aluminum foil to absorb the oil in the soup. Aluminum foil is also widely used for the barrier layer, heat exchange, and as an electrical conductor. Typically, aluminum foil used in paper bag beverage packaging and food packaging is only 6.5 microns thick. This thin aluminum layer is water resistant, savory, anti-bacterial and anti-fouling.

  The other type of aluminium foil packaging, aluminum foil bags, are used as tin foil bags, pure aluminum bags, just called different methods. Aluminum foil bags are suitable for a wide range of applications. Aluminum foil bags have strong barrier properties, anti-oxidation, water resistance, moisture resistance, strong mechanical properties, high blast resistance and puncture resistance. The characteristics of strong tearing performance are favored by electronic products and food packaging industry, and the development momentum has been particularly rapid in recent years.

  Core features: 1, good moisture, light and air barrier

  2, good heat sealing, long shelf life, sealed tight.

  3, beautifully printed, clear pattern, attract attention.

  4, dust-free production environment, 100% ketone-free benzene ink production, perfect quality control system is the continuous quality assurance for your authority.

  With either type of aluminium foil packaging, the quality of aluminium foil is very important. Haomei supplies aluminium foil jumbo roll, aluminium foil for containers, household aluminium foil and aluminium foil for packaging of medicine, food, cosmetics etc. Welcome to send inquiries!

Aluminum Foil for Air Conditioner from aluminium foil manufacturer

  Aluminum boasts so many advantages that it is more and more widely applied. It’s of small density, good heat conductivity, excellent workability, environmental properties and low cost. As a result, aluminium foil manufacturers are trying to replace traditional raw materials with aluminum. Take air conditioners for example. Manufacturers use aluminum as conductor sheets of heat exchangers. As a result, a new term has come into being in the industry: aluminum foil for air conditioner.

  Aluminium foil roll for air conditioners has been developed for over 20 years in China and got fast development in the past 10 years when air conditioners were winning more and more popularity. Nowadays air conditioners are becoming smaller and more efficient. Correspondingly the heat conductor sheets becomes thinner and stronger. In 1980s the thickness was about 0.15mm but now it reaches as small as 0.09mm. In addition, coated conductor sheets of various functions have been developed to extend air conditioners’ service life, reduce power consumption, improve ventilation effect and strengthen refrigeration effect. There are now conductor sheets of anti-rust type, surface water-loving function, water-repellent function, mildewproof type and self-lubricating type. This makes aluminium foil uses wider and wider.

  Anti-rust conductor sheets of aluminum foil for air conditioners are coated with a protective layer on the surface. Air conditioners with such sheets can be used in regions of severe conditions and have obviously longer life than ones. In addition, anti-rust ability of the sheets prevents production of corrosive dust on the surface, which helps to improve ventilation and eventually air quality of the service area. Water-loving aluminium foil rolls are usually applied to evaporators. Their main function is to lead clotted water down the sheets so that water will not accumulate on the sheets, which will greatly reduce ventilation effect as well as heat exchanging effect. Generally speaking, water-loving sheets also have anti-rust ability. Self-lubricating sheets have no lubricant oil but a thin layer of lubricating film, which avoids harmful influence on human body.

Recyclability and cleanliness of aluminium foil

One characteristic of aluminium is that it can be recycled 100% and reused. It can also retain its original characteristics. The regeneration process of aluminium consumes only 5% of the energy consumed by the original production of aluminium, so the emission of harmful gases will be significantly reduced during the regeneration process. Current separation technology can extract aluminum from scrap aluminium products for household use, but requires very little energy.

Aluminum foil is recyclable if it’s free of food residue. Do not recycle dirty aluminum because food contaminates recycling. Try rinsing the foil to clean it; otherwise, you can throw it in the trash.

on the other hand,tin foil was the first commercially available foil and was in use from the late 1800s through the early 1900s. What we call “tin foil” today isn’t the same although it still persists. Luckily aluminum foil does not add a metallic aftertaste like true tin foil.

According to the knowledge of aluminium foil processing factories, if the aluminium foil is not recycled, but directly disposed of in the incinerator, then a characteristic of aluminium appears. After heating, the surface of aluminium foil will oxidize quickly, and then release a lot of energy, which can also be recycled. At this time, aluminium without oxidation will melt and be recycled in the bottom ash of the incinerator.

The aluminium foil manufacturer introduced that the aluminium foil can be applied to various heating methods, such as convective heating oven and microwave heating oven, as well as air oven, and can also heat food packaged with aluminium foil. The use of aluminum foil packaging can greatly shorten the preparation time of cooking, but also can save a lot of energy.

Recycling Aluminum Foil – Unlike cans, recycling aluminum foil is tricky since cans maintain a rigid cylindrical or square shape which makes them easy to rinse. Foil pieces though are almost like paper sheets.

Clean the foil to prepare for it to be sent to the center. One way to do this is to wipe the foil clean. There will be times when the food is tightly stuck to the foil and no amount of wiping will get rid of it. If so, cutting off those sections is the only way to go.

Deliver the cleaned and ready-to-recycle aluminum foil to the local recycling center.

What are the uses of aluminium foil

Aluminium foil is widely used in our life, such as airline food packaging, ordinary meat packaging, cigarette packaging and so on. Relevant experts divide it into more than 20 varieties according to its application characteristics. Due to the difference of economic development level in different countries, the consumption structure of aluminium foil also has a great gap. In developed countries of Europe and the United States, 70% of the total demand is for aluminum foil products for packaging. Aluminum foil is mainly used as raw and auxiliary materials for industrial manufacturing in China market, and packaging aluminum foil accounts for only 30% of the total domestic demand. Although the development of aluminum foil packaging is relatively late, the market is growing rapidly and the prospects are attracting attention.

Aluminum foil is quite remarkable in building application. It is more convenient, clean, especially beautiful when it is pasted on the surface of thermal insulation material. But the effect of different kinds of aluminium foil is very different, such as fire protection and ordinary is not a grade.

Comprehensive advantages of aluminum foil containers and food packing

The comprehensive advantages of aluminum foil containers and food packing:

1. aluminum foil material is non-toxic, quality and safety.

Aluminum foil is made of primary aluminium alloy and rolled through many processes. It has no harmful substances such as heavy metals. Therefore, aluminum foil can be safely contacted with food, and it will not accommodate or help bacteria grow. In most cases, aluminum foil does not react with food. On the market, a considerable number of plastic lunch boxes are manufactured from unknown raw materials, even fake and waste plastics, which makes it difficult to guarantee the quality and reliability. (more…)

Packing/artists foil /food grade aluminium foil manufacturers

We are looking at the top five aluminium foil manufacturers in the world on the basis of their product volume and market size. Haomei Aluminium has become a professional aluminium manufacturer in China.The aluminium foil in flexible food packaging is one of its products, HAOMEI aluminium have great quality aluminum foil, circle, sheet, mirror and embossed sheet, coil and so on, so if you have any interested, feel free to contact us Email:sarah@aluminium24.eu (more…)