aluminumhm

  7xxx   aluminum sheet , an aluminium zinc magnesium alloy, contains alloys of 7075, 7050 and 7005 etc. As known to all, 5xxx aluminium sheets boast excellent anodizing effect, especially suitable as housing materials for electronic products. Can 7xxx aluminium plates be anodized, too? The answer is positive. Known as an  aircraft aluminum sheet , 7xxx plates are light in weight and strong in hardness. With Zinc and magnesium as the main alloy metals, 7000 alu sheets are a super hard heat treatable alloy 60% stronger than ordinary aluminium materials and 66% lighter than steel. Recent series of I phones have all adopted 7000 anodized aluminium sheets as their housing materials covering the whole frame and most of the back cover. The material of the mobile phone shells should have the characteristics of high strength, good heat and thermal conductivity, strong electromagnetic shielding, stable size, beautiful appearance, thin and durable, in order to achieve the effects o...

  Anodized aluminum sheets are more frequently mentioned with its advantages, and it looks as if there are no disadvantages at all. Yet this is not always the case. Failures in any step of anodising process might lead to the following weaknesses of a   pre anodized aluminum sheet . The first is transparency reduction. Aluminium sheets have their own transparency. The process of anodizing may make the surface of a sheet get dull and eventually lead to lower transparency of the sheet in a whole. It requires strict quality control of raw aluminium sheets and the anodizing process to avoid such a case. In addition, sheets of some alloys tend to get uneven colors after being anodized, like aluminium 3003. If the oxide film is required to be colorless and transparent after oxidation, the 5 and 6 series aluminum plates are better, and they can also be colored after oxidation. If it is only required to be anodized to form a dense anodized film, and if there is no requirement for color...

  Bronze anodized aluminum sheet  has a hard adhesive film with outstanding hardness and wear resistance. With a solemn color similar to traditional wooden furniture, the sheet serves as a novel material in exterior and interior decoration of buildings. Anodizing technology overcomes the defects of traditional aluminum alloy surface treatment technology in terms of hardness and wear resistance, and also overcomes the technical defects of chromatic aberration and uneven film layer of traditional flaky oxidation, thus greatly extends the longevity of aluminum alloy, making it possible to use aluminum alloy as a building material. Bronze anodized aluminum sheets give a modern sense of novelty, beauty and uniqueness as an interior building material. Different from paint coating films, an anodized film “grows” naturally on a sheet surface and never peels off. The oxide film is transparent and colorless, with a microcrystalline structure of hexagonal honeycomb. It can not only highl...

  　An   anodized aluminum sheet   is obtained by having the surface of the alu sheet anodized to get an anodizing film. This film, hard and corrosion resistant, helps to extend the service life of the sheet greatly. To judge the quality of anodized aluminium sheets, you should focus on the following 4 aspects. 　　Logo inspection: Each anodized  a luminium sheet   we usually sees is labeled, and the logo has the standard code and license of the product. 　　The thickness of the oxide film: This requires the use of a professional eddy current thickness measuring instrument for testing. 　　Surface quality inspection: In addition to cleaning the surface of the anodized aluminum plates, we need to see more things. For example, we should check whether the aluminum plate has some cracks or some corrosion. These are all It requires careful observation to discover. 　　Sealing quality acid leaching method: The formation of the sealing is formed after the anodic oxidation. If t...

  Although anodizing is an advanced process, not all alloys of aluminum sheets are suitable to be anodized. Anodized plates of some grades are poor in color evenness. 3xxx sheets are among them. In some cases 3000 series aluminium plates like 3003 are anodized, but the film is not so bright as that of other alloys, and 3003   colored anodized aluminum sheets   has a poorer appearance in color. The more frequently applied series in anodizing process include 4xxx, 5xxx, 6xxx and 7xxx. 4××× series aluminum sheets are aluminum alloys with silicon as the main alloy element, containing about 5% silicon, most of which are heat-treated non-strengthened aluminum alloys. Only alloys containing copper, magnesium and nickel can be welded and heat-treated to strengthen the alloy. The 4 series aluminum plates has a low melting point, good melt fluidity, excellent wear resistance, and high temperature resistance. After anodizing and coloring, it becomes dark gray, so it is suitable for ...