Types of Aluminum Foil

1. Types ofAluminum Foil Abstract: With wide applications, there are rich types of aluminum foils including cigarette aluminum foil paper, battery aluminum foil, cable aluminum foil,PTP aluminum foil, Aircon Aluminum Foil,etc. What are their properties and quality requirements? Welcome to read this page. Cigarette Aluminum Foil Paper The cigarette aluminum foil paper is used for cigarette packaging after lining paper, printing or paintings to prevent the cigarette from moisture and keep aroma. The common alloys of the cigarette foil are 1235 and 8079 with O temper. The thickness is 0.006-0.007 mm. What are the advantages of aluminum foil? It is of strong air barrier performance, strong mechanical properties, high blast resistance, strong puncture and tear resistance, high temperature resistance (121℃), low temperature resistance (-50℃), oil resistance and good fragrance retention performance. What are the quality requirements for cigarette aluminum foil? In the production process, the

2. control of surface and performance mainly includes the following points: 1. Control the quality from the source and strictly inspect the blanks. 2. During the rolling process, the surface quality is controlled by the cleaning and roughness control of the rolls, the selection of rolling oil, reducing the viscosity of the rolling oil, and controlling the operating speed of the machine,etc. 3. During the slitting process, ensure that the edges of the aluminum coil are neat during slitting, and there should be no quality problems such as the curling edge. 4. In the annealing process, the annealing time and annealing temperature are controlled according to the performance requirements of the cigarette foil to ensure clean degreasing. Aluminum Foil For Lithium Ion Battery The battery aluminum foil refers to the aluminum foil for lithium ion battery. The battery aluminum foil is used as the current collector of the lithium ion battery. Normally, the lithium-ion battery industry uses the aluminum foil as the positive electrode current collector. Lithium batteries usually have cylindrical and square shapes. The inside of the battery adopts a spiral wound structure, and a very fine and highly permeable polyethylene film separator is used to separate the positive and negative electrodes.

3. The positive electrode includes a current collector composed of lithium cobalt oxide (or lithium nickel cobalt manganate, lithium manganate, lithium iron phosphate, etc.) and aluminum foil. The negative electrode is composed of a current collector composed of graphitized carbon material and copper foil. What are the quality requirements of battery aluminum foil? 1. The surface of the aluminum foil is clean, flat, of uniform color and without obvious roll marks, pitting, pinholes, and corrosion marks. 2. The aluminum foil surface has no rolling defects such as creases, mottling, bright lines, etc. 3. There is no oil on the surface, no serious oil odor, and no visible oil spots. 4. As for the surface tension, the dyne pen test is not less than 32 dyne. The latest research in the lithium-ion battery industry has found that by etching and roughening the surface of the aluminum alloy foil used as the positive collector, the the charge and discharge characteristics of the battery can be improved.

4. Haomei Aluminum is a big supplier of battery aluminum foil. The common aluminum foil for lithium ion battery are 1060, 1050, 1145 and 1235 aluminum foil. The common tempers are O, H14, H22, H18,etc. 1235 aluminum foil is the most commonly used battery foil in the market. Cable Aluminum Foil Factory Since aluminum foil has high airtightness and shielding properties, the aluminum-plastic composite foil formed by coating a layer of plastic film on one or both sides, that is cable aluminum foil is an ideal cable protection layer. The aluminum foil for cables is generally produced with 1145, 1100 and 8011 alloy. The cable foil is made by attaching a special plastic film (0.058mm thick) on the upper and lower surfaces of the 0.15-0.20mm thick aluminum foil. The strength should not be less than 6.13N/cm and the heat sealing strength should not be less than 17.5N/cm. The surface quality of aluminum foil is the most important factor affecting the peeling strength. Generally speaking, the overall requirements for the quality of cable foil are not very high, mainly including less oil, no pinholes, high mechanical properties, no oil spots,etc. However, cable aluminum foil has relatively high requirements for length and mechanical properties. In terms of length, the length of the cable foil is only allowed to be longer and not shorter. This requires careful calculations when casting and rolling the billet. The cast-rolled billet should be kept as long as 10 or 12 times the customer's required length, plus an additional 3% error. In terms of mechanical properties, that is, strength, the communication cable industry does not set a high standard for cable foil, but most customers require the strength of cable foil to be

5. greater than 70MPa or 80MPa. Because cable aluminum foil needs to be divided into several small strips after covering with plastic film. The narrowest width is 12mm. There may be slight cracks or burrs during slitting, therefore a certain strength is very important. PTP Aluminum Foil The PTP aluminum foil is mainly used for medicine packaging to improve the stability and reliability of medicines. The aluminum foils should have a neat cross-section and no clamping edges, cracked edges, oil stains, wrinkles, scratches, creases, rubber roller marks,etc. The top three kinds of the pharmaceutical aluminum foil are 8011, 8021 and 1235 aluminum foil. The common temper is O temper. However, 8011 aluminum foil is usually in the H18 temper. The thickness of medicinal aluminum foil is only tens of microns. The thickness tolerance is not more than 5%. Through the water brushing experiment, the result is A grade.

6. 8011 Aluminum foil 8011 aluminum foil is of good mechanical properties, no pinholes and better gloss. With the element of Fe and Si, the tensile strength is 125-165, yield strength is 110 and elongation is 2-5. In terms of performance, although the pure aluminum foil is of good rust resistance, formability and weldability, they have a low work hardening rate and low tensile strength compared with 8011 aluminum foil. 8021 aluminum foil 8021 aluminum foil is often used as the cold forming blister foil. The thickness is of 0.025-0.08 mm. Haomei 8021 aluminum foil features high cupping value, high heat seal strength, no pinholes and good sealing performance. 1235 aluminum foil 1235 aluminum foil is a kind of pure aluminum foil, of which the aluminum content is not less than 99.35%. The common thickness is 0.018-0.5 mm. Its features are: low strength, good thermal and cold working performance and high thermal conductivity. Work hardening is the only way to strengthen its strength. Aircon Aluminum Foil The aircon aluminum foil is a special material for the manufacture of heat exchanger fins for air conditioners. Aluminium foil for air conditioner can be divided into plain foil and hydrophilic aluminum foil according to their production process and performance.

7. The air conditioner foil used in the early days is plain foil. In order to improve the surface properties of the plain foil, an anticorrosive inorganic coating and a hydrophilic organic coating are applied before forming to form a hydrophilic foil. Compared with plain foil, its refrigeration efficiency is increased by about 5%, making it a more ideal air-conditioning heat dissipation material. Hydrophilic aluminum foils account for more than 80% of the total aluminum foils for air conditioning. The amount of aircon aluminum foil for air conditioners varies greatly depending on the model and power. In recent years, the thickness of aircon aluminum foil has decreased from 0.12mm-0.15 mm to 0.09-0.11 mm. At the same time, as the production of air conditioners develops in the direction of high efficiency, energy saving and light weight, the demand for aluminum foil for air conditioners has decreased. In the last two years, the ratio of high-power air conditioners has increased, and the amount of aluminum foil per air conditioner has reached 7-10 kg. From this point of view, the current average amount of aluminum foil per air conditioner still remains above 4 kg. With the development of technology, there is a trend of further thinning of aluminum foil for air conditioner. The current leading hydrophilic aluminum foil in some countries is 0.09 mm. In an extremely thin state, aluminum foil must have good formability. Its structure and properties must be uniform and has less defects. Aluminum Foil Jumbo Roll As one of the commonly used materials in flexible packaging, aluminum foil jumbo roll has its unique advantages. The manufacturing process of jumbo roll aluminum foil can be divided into simple processing and deep processing.

8. Simple processing The aluminum foil blank is a cold-rolled aluminum coil with a thickness of 0.4-0.7mm and a high multiple deformation rate. The aluminum foil blank is first quenched at 240-480°C, and then sent to the steel roller with high hardness and high finish. After rough rolling, intermediate rolling and finishing rolling, the aluminum foil blank will be turned into the aluminum sheet and finally be quenched to get aluminum foil. The thickness of the aluminum foil can be controlled by adjusting the tension, the rolling force during rough rolling, and the speed during finishing rolling. During finishing rolling, the thickness of the foil decreases as the rolling speed increases; the greater the tension, the smaller the thickness. This kind of aluminum foil that has not undergone other processing is called plain foil. Deep processing 1. Compounding Laminate aluminum foil with plastic film, paper, cellophane, etc. with adhesives or PE to form composite films for various purposes. 2. Coloring The aluminum foil can be displayed in various colors on the coloring machine. With its own metal luster,the decorative performance will get greatly improved.

9. 3. Printing Aluminum foil can be printed directly, or printed on the surface after coating. The printed aluminum foil jumbo roll has better decoration effect. 4. Embossing The aluminum foil can be used to emboss various patterns on the embossing machine, which is used to wrap food with a good decorative effect. Aluminum foil embossing can also improve its surface flatness and eliminate its slight wrinkles.