Author Archives: Sarah

Aluminium foil for cooking

  By Sarah | 12/09/2019 - am2:06 | ,
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　　Aluminium cooking foil, also called aluminium foil for cooking, is a piece of paper made of flattened metal aluminum. It is mainly used for food cooking and containing in the kitchen or for making simple and clean materials. Hundreds of thousands of tons of aluminium foil rolls are used worldwide to protect and package food, cosmetics and chemicals. Most aluminum foil is shiny on one side and dull on the other. The aluminum foil paper used for cooking can wrapped on both sides of the food. Generally, it is recommended to wrap it with a bright surface to improve the heat transfer effect.

　　Aluminium cooking foil is light in weight, good in ductility, and low in price, thus is a kitchen standing product widely used in daily life. Aluminum foil has bright and matte surfaces. The matte side takes in heat and you need to make it to face the heat source in cooking, and the bright surface can reflect the heat energy, and you can wrap the ingredients with the bright side inward for cooking. Some foods (eg sweet potatoes, edible mushrooms, etc.) must be wrapped in aluminum foil to avoid burning. Seafood and oyster mushrooms are also cooked in aluminium foil to retain their flavors.

aluminium foil for cooking

　　Another use of aluminium foil for cooking is in the oven. Round ingredients such as pineapple bread and small meals are wrapped in aluminium foil before being fed into the oven, for they are prone to scorch with the inner unheated if these food materials are directly baked in the oven. Wrapping them with the bright side inward, since the heat conductivity of this side is better, can have foods heated evenly inside and outside. In the baking process, the heat source of the oven is transmitted to the aluminum foil paper and then to the food, so that the food and the aluminum foil paper are sealed in the sandwich to generate water vapor and hot air, and the food can be evenly heated.

　　The household aluminium foil has a use unrelated to cooking in the kitchen. As known to all, after the ginger and garlic are put on the grinding plate and ground into mud, residues are always stuck in the small hole of the grinding plate, which is troublesome to clean and easy to cut hands. Here if you have a piece of aluminum cooking foil laid on the grinding plate with the bright side facing upwards and then ground these ingredients on it, the problem will be solved. The aluminum foil is well-shaped and flattened on the grinding plate. The convex part of the grinding plate will make the aluminum foil have sharp edges and corners, which is very convenient for grinding mud.

　　Haomei supplies industrial aluminium foil 8011, 8021, 8079, 1060, 1070, 1100, 3003, 3004, 1235 and 5052. Welcome to send inquiries!

What is heavy duty aluminium foil

  By Sarah | 12/02/2019 - am2:29 | ,
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　　Heavy duty aluminium foil is named in opposite to Regular aluminium foil. The words “heavy duty” does not implies a higher tax as some people might imagine, since Trump has been taxing aluminium foil from China heavily recently. As the name implies, heavy duty aluminium foil simply refers to a kind of aluminum foil that is thicker, sturdier and thus heavier than regular aluminum foil.

heavy duty aluminium foil

　　Both regular and heavy duty aluminum foil are made of the same material: aluminium. The difference lies in their thickness. Thin aluminium foil rolls are only 0.006mm thick, yet thick ones can be up to 0.2mm thick. That’s like the height difference between a newly born mouse and a human giant. Correspondingly thicker aluminium foil has a much heavier weight, which results in directly a higher price per area unit. A 200-square-foot roll of Reynold’s Wrap Aluminum Foil costs $9.19 on Amazon. For roughly the same price ($8.99), you’ll get a 130-square-foot roll of Reynold’s Wrap Heavy-Duty Aluminum Foil.

　　Then which one to choose? Regular of heavy duty aluminium foil?

　　It all depends, actually. Regular aluminum foil will definitely work for kitchen tasks like covering dishes to be stored in the fridge, wrapping sandwiches and other foods, and lining baking sheets. But regular foil doesn’t hold up as well with heavy foods or with high-heat cooking on the grill, where it’s more likely to tear, rip, or break. While heavy duty aluminium foil is tough enough to stand up to high heat, heavy food items, and long-term storage in the freezer. Because of the extra thickness, it’s also a better choice for campfire packets. In a word, you need to choose based on your actual needs. You can just try both and then judge by yourself, since everyone has his or her own cooking habit.

Reprinted from http://haomei-aluminium.com/en/News/Knowledge/heavy-duty-aluminium-foil.html

Does aluminum foil rust?

  By Sarah | 11/25/2019 - am2:01 | ,
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　　Does aluminum foil rust?

　　This question keeps emerging on sorts of Q&A platforms, which demonstrates people’s eagerness to have an answer. Here we hope to offer what you just need.

　　Before getting to the answer, we need to clarify the concept of “rust” first. Rust is a chemical process during which metals get oxidized after being exposed to the air that is full of oxygen, yet this is not enough, for the word usually indicates a state of “decay” of a metal on the surface. Take iron for example, dark brown powder covers the surface of an oxidized iron and falls off under slight exterior forces like wind, rubbing or vibration. This means that the outer layer of iron is ripped away to form ferrous oxide, and because it is porous, oxygen can continue to penetrate to the iron, creating more rust. Eventually, the entire iron object will be converted to rust. Most metals rust in the same way, except for rare ones like aluminium whose oxide is a solid layer attached firmly onto the surface of an aluminium piece. Therefore, aluminium oxide can not be called something like decay in a strict point of view.

does aluminum foil rust

　　But if you mean “oxidize” by “rust”, then aluminium foil is likely to get rust soon after being placed in the air. Some metals are more reactive than others and Aluminum is far more energetic to oxidize than iron. The roll of aluminum foil you get in the store is already rusted before you use it.

　　So why does it still look shiny? Aluminum forms aluminum oxide. This is an extremely hard material that forms a layer on the surface that is only a few molecules thick. It then prevents more oxygen from getting to the pure aluminum below the oxide layer. Thus if you mean “decay” by “rust”, then aluminum does not rust. It only get oxidized. Magically, the oxidizing process makes it more “corrosion resistant” in a way.

Aluminium foil manufacturing process

  By Sarah | 11/18/2019 - am2:06 | ,
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　　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!

Use of aluminium foil in food packaging

  By Sarah | 11/11/2019 - am2:15 |
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　　The use of aluminium foil in food packaging includes that in food containers, food bags and sealing liners. This scope alone covers almost all alloys of aluminium foil rolls, including 8011, 8006, 8021, 8079, 3003 and even 5052.

　　Why is the food packaging aluminium foil winning so much popularity? Checking out the list of advantages of an aluminium foil related to food packaging: nontoxic, heat insulating, moisture proof, light shielding, excellent for composite, perfect sealing, friendly to ink and so on.

use of aluminium foil for food packaging

　　Here is a brief introduction to the use of aluminium foil in food packaging by alloys.

　　8006 aluminium foil for food packaging reaches the brush A grade, the plate shape is flat, the surface is clean and no oil. Haomei 8006 aluminum foil is suitable for aerospace wrinkle-free lunch boxes. After stamping, the edges are free of wrinkles and the appearance is smooth and smooth.

　　5052 aluminium foil food packaging is one of the commonly used aluminum foil lunch box raw materials.

　　8021 aluminium foil for food packaging has excellent moisture resistance, shading and high barrier properties. Non-toxic, tasteless and hygienic, the aluminum foil is widely used as a packaging material after after compounding, printing and coating.

　　8079 food packaging aluminium foil boasts a high strength, a good elongation and a good stretchability. 8079 aluminum foil has the advantages of moisture-proof, air-tight, shading, abrasion resistance, fragrance preservation, non-toxic and tasteless, and it is easy to process beautiful patterns and patterns on its graceful silver surface. Because of this, it’s favored by people in food packaging, pharmaceutical packaging, battery soft packs and other fields.

　　8006, 3003 and 8011 are all used in aluminium foil, the difference are as followed. 8006 lunch box aluminum foil has high strength and is hot rolled. 3003 aluminum foil and 8011 aluminum foil have low strength and are cast. The elongation and cup convex value of 8006 aluminum foil are higher than 8011, 3003 lunch box aluminum foil. The tensile strength of the 8006 container foil is 10 MPa higher than that of the 8011 aluminum foil, which is slightly lower than that of the 3003 aluminum foil.

Magical aluminum foil usage tips in daily life

  By Sarah | 11/04/2019 - am1:02 | ,
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　　Speaking of aluminium foil usage, you would think of barbecue, cakes or even chocolates. Not enough, baby. Check out the 12 magical uses of aluminium foil sheets in daily life!

　　1. WiFi Impprover—The most exciting aluminium foil usage

　　If you happen to own a slag WIFI, don’t be depressed. Put the aluminum foil in a serpentine shape, and the signal can be directed.

　　2. Door Handle Protector

　　Want a brand new door by painting it with a new color but not want to paint the door handle? Wrap it with aluminum foil. It is easy to dismantle, and the engineering quantity is small and easy to operate. Similarly, aluminium foil can be used in any such cases requiring protection of bumps.

　　3. Large Furniture Moving

　　If you need to move a large piece of furniture in the house, you can put a piece of aluminum foil on the corner of the table and under the cabinet, and then you can push it along So Easy! Remember to put the bright side down and the effect would be better!

　　4. Prevent the Steel Ball from Rusting

　　Wash the steel ball on the aluminium foil paper or wrap it in aluminum foil to reduce the rust. Mom wants to praise you as a small house clerk.

aluminium foil usage

　　5. Amplify the Heating Effect—Bring warmth in winter

　　In the winter, if you want to warm the room quickly, put the foil paper behind the heating so that it can be insulated to prevent the hot air from escaping from the wall. However, if you say that you live south of the Yangtze River, would you like to buy an electric heater first?

　　6. Banana Protector Aluminium foil—Finally related with food

　　Protects the banana head and a hat can lengthen its shelf life.

　　7. Clean the Baking Net

　　Roll the aluminum foil into a ball and use a clip to wipe the grill. The grilling net will become a lot cleaner.

　　8. Sharpening Scissors

　　Cut a few sheets of aluminum foil with scissors, and the scissors will be as sharp as a new one!

　　9. Remove Metal Rust

　　If a metal item gets rusty, you can use the aluminum foil to dip the rusted area with a little water.

　　10. Improve the Efficiency of the Iron

　　Put the aluminum foil between two sides of a pair of pants, and put the pants on the iron, then you can burn both sides at the same time!

　　11. Bag Sealer

　　Remaining snacks can be kept better! Put the aluminum foil on the mouth of the snack bag and iron it with the iron. A simple sealer is done!

　　12. Battery Converter

　　Don’t despair when you get a No. 7 battery instead of a No. 5. Wrap the aluminum foil on the positive side of the battery to ensure good contact. Done!

What is extra thick aluminium foil sheet

  By Sarah | 10/28/2019 - am1:53 | ,
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　　Speaking of aluminium foil thickness, we think of 0.09mm or 0.1mm. Usually foil aluminium is not over 0.2mm thick, but there are thick aluminium foil sheet and even extra thick aluminium foil rolls. And the usage are quite familiar to us: transformer winding and sealing liners.

　　Transformer aluminium foil rolls mainly refer to aluminium strip 1060. While being used for transformers, it is an extra thick aluminium foil, with a thickness between 0.2mm and 3mm. 1060 O aluminium foil is used for winding units of high and low voltage in dry type transformers to achieve conversion and impedance matching between different voltages (currents). The traditional winding material for transformers is copper, which is much more expensive. People have been looking for an alternative of copper. The conductivity of metals are successively silver, copper, gold, aluminium, nickle and steel. Since the conductivity of aluminium is only second to copper, it becomes the best alternative as a transformer winding material. But the requirements for transformer aluminium foils are really high, and only powerful suppliers are able to supply them.

　　In addition to 1060 extra thick aluminium foil sheet, there is thick aluminium foil sheet, too. Take 8011 aluminium foil used for sealing liners for example. A roll of 8011 foil aluminium can be as thin as 0.016, but thick ones reach 0.5mm thick. Both thicknesses can be used as sealing liner materials, but in varied application conditions. Thick aluminium foil sheet products have natural advantages in sealing bottles and other containers. They display an excellent insulation property, protecting sealed materials (food, medicine, make up etc.) from moisture, gases, smells etc, keeping them fresh as long as the liners are not removed.

Anti-rust measures in storing aluminium foil roll for food

  By Sarah | 10/24/2019 - pm8:29 | ,
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　　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

  By Sarah | 10/23/2019 - am1:59 | ,
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　　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.

Buy aluminium foil from suppliers

  By Sarah | 10/21/2019 - am3:03 | , ,
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　　If you want to buy aluminium foil from professional aluminium foil suppliers, you are recommended to learn some basic knowledge about the classification of aluminium foil rolls. Generally there are two types of classification methods, the first is by alloy number, including 8011, 8021, 3003, 1070, 8079, 1235, 1145 etc. But owing to the fact that application scopes of these alloys usually overlap with each other, a second classification based on usages is popular, too. Details are as below.

　　Aluminum Foil For Pharmaceutical Packing

　　Alloy: aluminium 1070、1145、1235、8011、8021、8079

　　Temper: O,H14,H16,H18,H19,H22,H24

　　Thickness: 0.018-0.5

　　Cable Wrapping Aluminum Foil Roll

　　Alloy: 1145, 8011, 1200

　　Temper: O

　　Thickness: 0.15-0.20mm

　　Cigarette Aluminum Foil

　　Alloy: aluminium 8011

　　Temper: O

　　Thickness: 0.006-0.007mm

Buy aluminium foil from suppliers

　　Aluminum Finstock

　　Alloy: 8011

　　Temper: O, H22, H24, H26

　　Thickness: 0.08-0.2mm

　　Aluminum Foil for Aluminium Containers

　　Alloy: 8011, 3003

　　Temper: H22, H24

　　Thickness: 0.04-0.09mm

　　Household Aluminum Foil

　　Alloy: 8011

　　Temper: O

　　Thickness: 0.009-0.020mm

　　After figuring out classifications, you should also learn some purchasing tips if you want to buy aluminium foil rolls. First, ask more than two aluminium foil suppliers about price and samples. Second, learn as more details in advance as possible, like lead time, quality control, after sales service, payment term etc. Third, learn something about currency ratio before putting an order, and choose the best time when the ratio is favorable for you. And if you can learn more about local financial knowledge which your supplier make as a base before giving you an offer, you would harvest more than you expect.