Aluminium foil rolls can be divided into 1xxx, 3xxx and 8xxx by series, the most frequently applied are 8xxx series, including 8011, 8021 and 8079, among which 8011 covers the widest scope of application. It can almost replace any other aluminium foil grade in any application, from food packaging to battery foil. Then how much is the price of 8xxx aluminium foil rolls? It depends on the grade and thickness of the foil as well as rolling methods of raw materials.
8011 aluminum foil price proves to be the lower than the other two alloys, for it’s the most popular and its manufacturing process is the maturest. Because of its excellent sealing, plasticity, corrosion resistance, etc., it is widely used in food and beverage, cigarette medicine, household daily use and other fields. 8021 aluminum foil is the main product of food packaging and battery soft aluminum foil. Compared with 8011, 8079 aluminum foil has higher strength, better elongation and stretching ability. 8079 aluminum foil has all the advantages of 8011, and it is easier to process beautiful patterns and patterns in various colors, so it is very popular in the packaging industry. Accordingly the price of 8021 and 8079 is higher.
Thickness of 8xxx aluminium foil is grouped in the same way as ordinary foil roll. There are thin aluminium foil(0.005-0.009mm), medium thick aluminium foil(0.01-0.1mm) and great value heavy duty aluminum foil (0.1-0.2mm). Generally speaking, thicker foil rolls are cheaper by weight, for thinner rolls entail more and preciser casting steps.
There are no differences among aluminium foil rolls by hot and cold rolling. When we speak of hot or cold rolling for aluminium foil, we refer to the rolling method of its raw materials. Whether it’s cold rolled or hot rolled, the aluminium foil blanks are sent to the rolling mill for rough rolling, intermediate rolling and finish rolling. The price for 8xxx aluminium foil of hot rolled materials are more expensive.
Is aluminium foil for hairdressing an extra heavy duty aluminum foil? Considering the thickness of hair salon aluminium foil, we can give a positive answer.
As known to all, the regular thickness ranges of aluminum foil jumbo rolls are between 0.009mm to 0.2mm. What we contact most frequently is the food packaging and wrapping aluminium foil which can be very thin, much thinner than hair salon aluminium foil. And air conditioner foil can either be thin or thick depending on the heat dissipation requirements. An aluminium foil for hairdressing must be 15micron thick and above. Regular thicknesses supplied by Haomei include 15micron, 16micron, 18micron and 20micron, which are respectively 0.015mm, 0.016mm, 0.018mm and 0.02mm. These are so called single-zero aluminium tin foil in China, much thicker than double-zero foil with two zeros after decimal point.
Why a hair salon foil must be an extra heavy duty aluminum foil? I once interviewed a hair stylist who told me that the hardness of ordinary household aluminium foil is insufficient to wrap and fix hair in conditioning. The foil tape for hair beauty must be thick enough to obtain relative hardness to meet the requirement. In addition, the hair goes through a high-temperature conditioning to get the made shape stable even after the hair gets dry. If the foil is too thin, there is a danger that the hair might be burnt during the conditioning process.
The main application scope of the industrial aluminum foil falls on cooling fins of air conditioners. The main alloys of air conditioner foil are 1100, 1200, 8011, 3102 etc. The main chemical composition for air conditioner foil produced by hot rolling billet or cast rolling stock shall comply with the provisions of GB 3190-2008. But in the production, the actual control range of different manufacturers is different. The control range of chemical composition mainly considers the technical indicators such as tensile strength, elongation and cupping value of products to meet the requirements of users.
Surface quality requirements of aluminum foil for air conditioning
The surface of aluminum foil should be flat and clean, and there are no defects such as corrosion, holes, folding, brown oil spots, slit, etc. 0 state aluminum foil, surface brush water test should not be lower than grade B.
Thickness of aluminum foil for air conditioner
At present, the thickness of air-conditioning aluminum box is generally 0.10-0.12mm, and there is a trend of thinning to 0.090 mm.
Requirements for tensile strength, elongation and cupping value of aluminum joint in air conditioner
There are generally two forming methods for the heat sink fins of air conditioner: one is the drawing forming method, which requires the air conditioner foil with large deep drawing capacity. Due to the low tensile strength, the thickness of aluminum box is relatively thick, generally more than 0.11mm; The other is the thinning drawing method, which has a faster forming speed and a thickness of less than 0.11 mm, which requires not only a certain plasticity but also a high strength of aluminum foil. In other words, different forming methods have different performance requirements for air-conditioning aluminum foil. According to the market demand for air-conditioning aluminium foil, it is required to meet the forming process of stretch forming and stretch thinning forming at the same time. It is generally hoped to obtain H22 aluminum foil for air conditioning. The tensile strength is 120-130mpa, the elongation is more than 18%, and the cupping value is more than 6mm.
Heavy duty tin foil, also known as heavy duty aluminium foil, is between 0.1mm to 0.2mm thick, $2600-$2800 per metric ton, and used in power battery shells, sealing liners, food containers, hairdressing etc.
Heavy duty tin foil covers a wide range of aluminium alloys, each with its own advantages and application scopes. 1100 aluminum foil has good formability, corrosion resistance, thermal conductivity and certain strength. It is widely used in heat exchangers in the refrigeration industry, storage containers in the chemical and food industries, and capacitor shell materials in the electronics industry. 8079 aluminum foil is a high strength aluminum foil with good elongation and spreading pressure. 8079 aluminum foil not only has the advantages of moisture resistance, air tightness, shading, abrasion resistance, fragrance preservation, etc., but also because of its elegant silver-white gloss, it is easy to process beautiful patterns and patterns of various colors, so it is more popular with people. . 8079 aluminum foil is widely used in lunch box materials, medicine capsules, food packaging, aluminum foil for battery soft packs, etc.
8021 heavy duty tin foil is the main product of food packaging and battery soft aluminum foil. 8021 aluminum foil has excellent moisture resistance, shading and high barrier capacity. Aluminum foil after compounding, printing and gluing is widely used as packaging material. 8011 aluminum foil is mainly used in pharmaceutical packaging, food packaging, cable foil, milk cover material, sealing foil and other fields. 3003 aluminum foil is a commonly used product of AL-Mn series alloys. This product is used in electronic foil, honeycomb material, building sound insulation material, food packaging, pharmaceutical packaging, etc. 1235 aluminum foil has an aluminum content of not less than 99.35% aluminum foil, which is used for its good anti-rust properties, formability, and solubility Widely used in cables, tapes, battery foils. 5052 aluminum foil is one of the commonly used raw materials for aluminum foil lunch boxes.
Wide aluminum foil include alloys of 8011, 8021, 1235, 3003, 3004, 1070, 1060, 1100 and 8079 etc.
8011 wide aluminium foil falls on 8 ××× series alloy aluminum plate. It is added with Al Fe Si element and more than 1% of total alloy elements. Its alloy performance has relatively high advantages. Although 8011 is listed in 8 ××× aluminum alloy, it does not contain lithium. The main alloying elements are Si and Fe, and the maximum contents are 0.9% and 1%. In addition, it contains 0.1% copper, 0.2% Mn, 0.05% Mg, 0.10% Zinc and 0.08% Ti. 8011 is often used as aluminum foil, its performance is better than pure aluminum foil, and it is widely used in aluminum foil paper.
The uses of aluminium foil paper 8011 include food packaging, pharmaceutical packaging, bottle sealing, adhesive tapes etc. We can process 8011 wide aluminium foil with thickness of 0.016-0.5mm. The aluminum foil is mainly used in medicine packaging, food packaging, cable foil, milk capping material, sealing foil and other fields. The uses for aluminium foil 8011 in pharmaceutical packaging: PTP medical aluminum foil, cold stamping forming drug foil, 8011-h18 pharmaceutical packaging aluminum foil, capsule aluminum foil, etc., advantages: high cup convex value, high strength of aluminum foil, good sealing performance.
Recyclable aluminum foil rolls take up a great share in our kitchens and hospitals. We use them to wrap foods for cooking and package pills for safe keeping. Owing to the high frequency of which we get in contact with them, there are times when we accidentally ate aluminum foil and get panic, worrying about all kinds of imaginable results, all of which negative. In fact, don’t worry about this situation. Human body does not absorb aluminium foil paper. The swallowed aluminum foil can be discharged into the intestine with the peristalsis of the intestine, and then discharged from the body through the intestine.
What if I accidentally ate aluminum foil?
1. Eat scrambled eggs with leeks appropriately to promote discharge.
2. Eat some vegetables to promote bowel movements and excrete.
3. Eat more vegetables and fruits, drink more warm water, this will help swallowed aluminium foil expelled from the body as soon as possible
4. Eat more crude fiber foods, mainly light semi-liquid food.
5. Eat small meals frequently.
6. Go to see the doctor in case of serious uncomfortable feelings.
Q&A about eating aluminum foil
1. Will swallowed aluminum foil scratch the gastrointestinal mucosa?
The surface of the human digestive tract is mucous membranes, secreting mucus, and the surface is smooth. Unless the hard objects may cause incarceration, it will be wrapped in food through the peristalsis of the stomach or intestine, and after eating it can be discharged into the peristalsis The intestine, which is excreted through the intestine, will not cause great harm. It is generally not a problem to eat aluminum foil in medicine packaging, because it is relatively soft, and the scratches may be relatively small. But it takes about 3-5 days to discharge.
2. Will the foil stick to the stomach wall? Will it cause cancer?
It will not stick to the stomach wall, and it will not cause cancer.
3. Why can the aluminium foil be discharged rather than absorbed?
Because the intestinal tract and stomach are in a high-acid and high-alkaline environment,and human body does not take this kind of material as a nutrient substance, so they will definitely soften and can be discharged. Don’t worry.
4. Do I need to go to the hospital for treatment?
No treatment is needed if the amount of eaten aluminium foil piece is not large. Although harmful, it has little effect. It is recommended to observe for a short period of time. If gastrointestinal discomfort occurs, you should go to the hospital for inspection.
Aluminium foil strip is used as air conditioner aluminium fin strip because of its advantages such as low density, good thermal conductivity, easy processing, tasteless, environmental protection and low price. The heat exchanger of air conditioning also develops to ultra-thin and high strength. In the 1980s, the thickness of the heat exchanger sheet was 0.15-0.2ram, but today it is only 0.09-0.15mm. Classification is as below.
Uncoated aluminum foil refers to the rolled and annealed aluminum foil without any form of surface treatment. Ten years ago in China and 15 years ago in foreign countries, all the aluminum foils used for air conditioning heat exchanger were uncoated. About 50% of the heat exchanger used in developed countries are still uncoated aluminum foil, while in China, the ratio is about 60%.
2. Coated aluminium foil strip
The so-called coated aluminum foil is to re treat the surface of uncoated aluminum foil, so that it has a special function. In Japan, Germany and other countries with rapid technological development, coated aluminum foil has been used for more than 15 years. In China, the time of using coated aluminum foil is less than 10 years. According to the characteristics of the coated aluminum foil surface, it can also be classified as follows:
3. Corrosion resistant aluminium foil strip
The surface of the corrosion-resistant aluminum foil product has a certain corrosion-resistant protective layer. The air conditioning heat exchange sheet made of the product can be applied to the worse areas, and can significantly improve the service life of the air conditioning. At the same time, due to the improvement of the corrosion resistance of the heat exchanger, the formation of corrosion powder on the surface is greatly reduced, thus improving the ventilation quality and purifying the air in the air conditioning room.
4. Hydrophilic aluminum fin strip
The surface of hydrophilic aluminum foil has strong hydrophilicity. The hydrophilicity is determined by the angle formed by water sticking to the surface of aluminum foil, as shown in Figure 1. The smaller the a angle is, the better the hydrophilicity is; otherwise, the worse the hydrophilicity is. Generally, angle a is less than 35. It belongs to hydrophilic property. Hydrophilic aluminum foil is generally used in evaporator of air conditioner. The main function of the utility model is to make the moisture in the hot air easily spread and flow down the sheet when it condenses on the heat exchange sheet into water drops. In this way, the ventilation effect of the heat exchanger can be avoided due to the “bridging” of the water drops between the heat exchange sheets, so as to improve the heat exchange rate of the air conditioner, and save electric energy under the condition of the same cooling capacity. Before, the general hydrophilic aluminum foil in the market has not only good hydrophilic surface, but also high corrosion resistance, which makes the performance of air conditioning more optimized.
5. Hydrophobic aluminium foil strip
Hydrophobic aluminum foil is also called water repellent aluminum foil. Its surface performance is opposite to hydrophilic aluminum foil. That is to say, when the condensate condenses to the surface of the aluminum foil, the contact angle with the 36 wide aluminum coil stock foil is relatively large, generally at 75. above. The larger the angle, the better the water repellency. The ultimate goal of using hydrophobic aluminum foil is the same as that of hydrophilic aluminum foil, that is, not to let the condensed water stay between the heat exchange sheets. The difference is that the hydrophobic aluminum foil can remove the condensation water between the heat exchanger sheets by increasing the contact angle between the condensation water and the heat exchanger sheets, so that the condensation water can form water drops which are easy to slide.
6. Self lubricating aluminum foil fin strip
In the process of processing and manufacturing, the air conditioner heat exchanger generally needs to add lubricating oil to its surface, then punch and flanging, and finally wash the lubricating oil with trichloroethylene. Because trichloroethylene is harmful to human body, in order to reduce this process, self-lubricating aluminum foil is produced accordingly. As the name implies, the self-lubricating aluminum foil does not need to be added with lubricating oil alone when it is processed, and the lubrication during the processing is undertaken by the pre-treatment film on the surface of the aluminum foil. Since no special lubricating oil is needed, the subsequent cleaning and drying process of trichloroethylene is also omitted.
7. Mould proof aluminum air conditioner foil
Mould proof aluminum foil is mainly used for indoor unit of air-conditioning. Its main function is to prevent the surface of heat exchanger from mildew due to long use or placement time, so as to significantly improve the ventilation quality of air-conditioning, prevent the generation of abnormal smell, and effectively improve the indoor environment of air-conditioning.
The packing box and packing method for aluminium coil and foil rolls shall be selected according to the product specification and size. For box type packing, the aluminum rolls can not be damaged after being packed. Materials for making the packing box can be wood board, multi-layer board, fiberboard, metal and other materials. The packing box shall be clean and orderly, with enough strength to ensure no deformation or damage during storage and transportation. The nails in the wooden packing box shall be arranged step by step, the nail tip shall not be exposed, and the nails shall be turned upside down to prevent the aluminum foil rolls from being hit by the cap and nail tip during transportation. The height of the bottom bracket shall meet the requirements of forklift transportation. After aluminum coil foil products pass the inspection and are sealed with inspection stamp, a layer of strong neutral or weak acid material shall be wrapped outside, and the joint shall be sealed with a tape or label.
The end face of the package is padded to protect the end face of the aluminum coil rolls. Add dry explosive, cover the material bag, plug the part of the two ends of the material bag beyond the aluminum record into the tube core, seal it with a suitable material head and put it into the packing box. After the product is packed, a layer of anti Lake paper or material cloth shall be covered on it. After the packing list is placed, it can be covered and sealed with steel belt. The steel belt shall be tied in a circle.
Conventional packaging for aluminium foil or coil rolls: for aluminum roll with a thickness of more than 0.05mm and a hard state every day, it can be packed with a tripod, and its packaging shall meet the requirements of transportation. The well frame is made of wood, and the upper and lower parts are made of two battens respectively. The height of the lower battens shall meet the requirements of the next train operation. The upper battens shall be made of arc shape corresponding to the roll radial direction. The upper and lower battens shall be fixed with poles, and the length of the poles shall be lower than the surface of the upper battens to complete the aluminum burn.
Firstly, a layer of strong neutral or weak acid material (generally high release) shall be placed on the outside of the aluminum foil rolls, and the packing list shall be placed, and the lap joint shall be firmly adhered with adhesive tape. A soft pad is placed on the end face to protect the end face of the aluminum foil roll.
Secondly, add dry explosive, wrap the whole material roll with the whole plastic cloth, the outer layer of the lap joint should be expected to have the material cloth mouth downward and be firmly stuck with adhesive tape, and plug the redundant parts at both ends of the plastic cloth into the pipe core. Finally, the rainproof cardboard with the same size is used to wrap the entire aluminum coil and seal the two ends along the circumference direction, and the joints between the end face and the circumference and all the gaps are firmly bonded with adhesive tape. Put the wrapped aluminum foil on the derrick and fix it with steel belt along the circumference direction, which shall be tied firmly. Put a box plate on the end face of the packed aluminum foil roll. In addition to the load-bearing and packaging costs of boxes and trellis, the transportation mode and the transportation and handling capacity of users should also be considered. Generally, the packaging weight of each aluminum coil of our company is 2.6 tons.
Export packaging method of aluminium coil suppliers: aluminum coil is a product with large export volume. The export packaging is usually in the form of plain well frame, the external part is fixed with steel belt, the external part of aluminum coil is provided with double-layer rainproof cloth, the internal part is moisture-proof, and the sealed packaging is adopted, which is suitable for sea transportation.
8079 aluminium foil is a high strength aluminum foil with good elongation and spreading pressure. 8079 aluminum foil boasts the advantages of moisture resistance, air tightness, light shading, wear resistance, fragrance preservation and high sanitary level, also winning popularity with its elegant silver-white gloss and adaption to patterns of various colors. The use of aluminium foil 8079 covers pharmaceutical packaging, food packaging, food containers, battery soft packaging etc.
As a pharm packaging material, 8079 foil is usually 0.02mm or 0.022mm thick. Thicker ones ranges from 0.04mm to 0.75mm. H18 and O are the regular tempers. The foil is used in pharmaceutical packaging because of its good strength, excellent sealing property, outstanding light prevention effect and healthy clean material.
The use of aluminium foil 8079 in food packaging is based on its attractive metal gloss, high heat prevention ability, good sealing effect, and excellent resistance to air, moisture and light. In addition, the foil shows good mechanical properties and anti-erosion ability, suitable to be process by high-speed automatic packing machine under various climatic conditions. It is mainly used in pharmaceutical, tablet, capsule, suppository, pill blister packaging.
8079 aluminium foil for battery packaging is smooth and flat, with high light reflectivity, high tensile strength in the vertical and horizontal directions, airtightness and water permeability, and good sealing performance. It has the characteristics of high shielding rate, strong material toughness and low price. It can effectively shield the electronic interference generated by any electronic product equipment. It is also a suitable material to replace conductive cloth, which plays the role of flame retardant, anticorrosive, thermal insulation and sound absorption.
High corrosion resistance 3003 aluminium sheet is of 0.1mm to 500mm thick and up to 2650mm wide. It obtains a high erosion resistance by combining aluminium and manganese, both known for good anti-rust performances. Among all aluminium alloys, 3003 sheet rank medium in strength, corrosion resistance, plasticity and top in further processing properties, covering a wider range of application than 6xxx, 7xxx and 8xxx alloys.
In spite of its excellent corrosion resistance, 3003 has a poorer hardness than most alloys, but this can be improved by cold hardening to a proper extent. Rust-proof aluminum 3003 is generally used in annealed or cold-work hardened state. Alloy 3003 aluminum properties include high plasticity, low strength, excellent corrosion resistance and welding performance. 3003 is easy to process and has good gloss and low temperature performance. It is suitable for manufacturing worked parts with little stress in corrosive environments.
The most frequently applied high corrosion resistance 3003 aluminium sheets are of thin type. The sheets are flat, strong, shock proof and leak proof, proving to be a good material for power batter shells, packaging, refrigerator, air conditioner, cold storage, ventilation ducts etc. Haomei has super wide 3003 aluminum sheets for bus skin, silos, antenna pot materials, wide curtain wall panels and wide roof panels, hot rolled 3003 sheets for power battery shells, automobile heat shields, fuel tanks, water tanks, automobile anti-skid plates, battery explosion-proof valves, battery cover plates, automobile interior, signage, can bodies and medical equipment, and 3003 aluminium foil for honeycomb cores, electronic foil, meal box materials, container foil etc. If you need 3003 aluminium of any type, welcome to contact us!