Anodized aluminum: Common problems and Analysis

Anodized aluminum is aluminum or aluminum alloy electrolyzed in aqueous solutions such as sulfuric acid, oxalic acid, and chromic acid to form an oxide film on the surface (thickness is generally 3-15 microns). Anodized coatings have high adsorption capacity, easy sealing and coloring, corrosion resistance, and beautiful appearance. Anodized aluminum is widely used in our lives, whether it is aircraft parts, automotive decorative parts, building curtain walls or electronic product shells. It is usually supplied in the form of anodized aluminum sheets or anodized aluminum coils, and processed aluminum parts can also be directly anodized. There may be some problems in the anodizing process. This article explores the common problems and solutions of aluminum and aluminum alloys in the anodizing process. Common problems and Analysis ◆Uneven film thickness: It may be caused by uneven current distribution, poor contact between the workpiece and the electrode, etc. ◆Insufficient film hardness: This may be related to improper oxidation process parameter settings, electrolyte composition problems, etc. ◆Spots or flaws on the surface: It may be caused by incomplete pretreatment, electrolyte contamination, etc. ◆Poor adhesion of the oxide film: The reasons may include aluminum material problems, poor pretreatment or inappropriate oxidation process. ◆Uneven dyeing: It...

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The difference between 5083 and 5086 aluminum plates for marine grade ships

When we talk about marine-grade aluminum plates, we always have to mention 5083 aluminum plates and 5086 aluminum plates. Since marine ships are immersed in seawater for a long time, the requirements for the materials of ship plates and sheet metal parts are very high. They are required to have excellent corrosion resistance, high strength, excellent welding performance and good forming performance. 5083 aluminum plates and 5086 aluminum plates are two aluminum alloys commonly used in marine engineering and shipbuilding. They both belong to the 5000 series aluminum alloys, and the main alloying element is magnesium, which has excellent corrosion resistance and high strength. Common points between 5083 and 5086 aluminum plates for marine grade ships 5083 aluminum plates and 5086 aluminum plates both belong to the 5 series AL-Mg alloys, with the same main alloying elements. Both have excellent corrosion resistance and good weldability, and are widely used in shipbuilding, including hulls, decks, ship sides and bottom outer plates. Differences between 5083 and 5086 aluminum plates for marine grade ships Although 5083 and 5086 aluminum plates have the same main alloying elements and similar material properties, there are still some differences. Chemical composition The main alloying elements of 5083...

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What is aluminum roll jacketing? What are the specifications of aluminum jacketing?

Aluminum roll jacketing is a common building insulation material. It has the advantages of smooth and beautiful appearance, strong plasticity, long service life, good insulation and corrosion resistance, and high cost performance. It is widely used in various large-scale chemical plants, power plants, pharmaceutical plants, refineries, pipeline insulation packaging and other fields. aluminum jacketing is actually a thin sheet of aluminum, which can be delivered in flat or rolled form. As the incarnation of aluminum ingots, aluminum jacketing is repeatedly processed into rough cast rolls through block aluminum ingots, and then further annealed by high-temperature annealing furnaces through continuous forging and repeated rolling. Aluminum jacketing is divided into different materials, due to its different composition, different grades, and different annealing times, the state formed is different. We are a professional aluminum jacketing manufacturer that can produce 1060 pure aluminum roll jacketing, 3003 rust-proof aluminum roll jacketing, 5052 corrosion-resistant aluminum roll jacketing and so on. What are the specifications of aluminum jacketing? Aluminum roll jacketing used for pipe insulation generally have a long service life, up to 40 years. Users can choose the appropriate thickness according to their needs. The thinner the thickness, the easier it is to operate. Nowadays, all...

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Advantages of 5052 aluminum sheet for 3C products

5 series aluminum-magnesium alloy is a widely used aluminum alloy product, and 5052 aluminum sheet is one of its representative products. It is often used as an anti-rust aluminum sheet because of its good anti-rust ability. 5052 aluminum sheet has many advantages and is widely used in the construction industry, automotive industry and electronic products. Today we will discuss its advantages in 3C (computer, communication and consumer electronics) product applications. Advantages of 5052 aluminum sheet for 3C products Excellent corrosion resistance 5052 aluminum sheet has excellent corrosion resistance, especially in humid or corrosive environments. This makes it very suitable for the housing of smartphones, tablets and other electronic devices, and can maintain a stable surface in harsh environments. High strength and durability 5052 aluminum sheet has high strength and durability, and can withstand wear and impact in daily use. This is very important for 3C products that need to be carried and used frequently. Good formability 5052 aluminum sheet has good formability and is easy to process into complex shapes, which meets the diverse design requirements of electronic product housings. Lightweight The density of aluminum is about 2.71 g/cm³, which is about one-third of that of steel, which makes the...

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The difference between aluminum plate 5052 H32 and H34

5052 aluminum plate is a widely used anti-rust aluminum plate. It has high strength, good plasticity, good weldability and high corrosion resistance. It is used to manufacture sheet metal parts, instruments, street lamp brackets and rivets, hardware products, and electrical appliance casings for transportation vehicles and ships. Preferred materials.  5052 aluminum plate has many different states. 5052 H32 state and H34 state are two different work-hardening states of 5052 aluminum alloy. They have the same chemical properties, excellent corrosion resistance and good weldability, but different reactions. The fire state leads to some significant differences in mechanical properties, formability and application areas between the two. Difference between aluminum plate 5052 H32 and H34 Tempering and hardness 5052 H32 means that the aluminum plate has been work-hardened and then partially annealed to reach 1/4 hardness. 5052 H34 means that the aluminum plate has been work-hardened and then partially annealed to reach 1/2 hardness. Mechanical properties Tensile strength: The tensile strength of 5052 H34 is higher than that of 5052 H32. Yield Strength: 5052 H34 generally exhibits higher yield strengths than 5052 H32. Elongation: The elongation of 5052 H32 is approximately higher than that of 5052H34. Hardness: The Brinell hardness of 5052 H34...

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Advantages and uses of 3105 aluminum coil

3105 aluminum coil is an aluminum-manganese alloy and is a common anti-rust aluminum product in daily life. It has excellent performance and is widely used. It can be seen in everything from house panels to cake trays and bottle caps. This article will take you to explore the performance advantages and typical applications of 3105 aluminum coils. Advantage of 3105 aluminum coil Anti-rust and corrosion-resistant. 3105 aluminum coil has good corrosion resistance and anti-rust properties and is widely used in products and structures that require long-term exposure to the external environment. Good formability. 3105 aluminum coil has high plasticity and plasticity in the annealed state, and is especially suitable for bending or deep drawing applications. Good weldability.3105 aluminum coil has excellent welding performance and can be welded by a variety of commercial welding techniques, especially arc welding. After welding, 3105 aluminum alloy still maintains good strength and corrosion resistance, which makes it very suitable for applications requiring high strength and corrosion resistance. Good strength. The strength of 3105 aluminum coil is higher than that of 1 series pure aluminum alloy. The mechanical properties vary depending on the state (such as H14, H16, H18, etc.), but it generally has good strength....

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3003 aluminum plate or 1100 aluminum plate which is better?

Aluminum plate is a very important material, widely used in aviation, construction, electrical appliances, transportation and other fields. 3003 aluminum sheet plate and 1100 aluminum sheet plate are two widely used aluminum plates. Although they are both aluminum alloy plates, they are very different in performance and application. Which one is better, 3003 aluminum plate or 1100 aluminum plate? 1. Different compositions 1100 aluminum plate is industrial pure aluminum with an aluminum content of more than 99%. It has relatively good elongation and conductivity and is easy to process. 3003 aluminum plate is an aluminum-manganese alloy product with an aluminum content of about 98% and about 1% manganese element; therefore, the rust-proof performance and corrosion resistance of 3003 aluminum plate are much higher than that of 1100 aluminum plate, and the strength of 3003 aluminum plate is about 10% higher than that of 1100 aluminum plate. 2. Hardness and strength Due to the difference in chemical composition, the hardness and strength of 1100 aluminum plate and 3003 aluminum plate are also different. 1100 aluminum plate is a soft aluminum plate with good plasticity and ductility, but low strength. The 3003 aluminum plate is a semi-hard aluminum plate, with higher hardness...

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Typical applications of embossed aluminum coils

Embossed aluminum coil is a deep-processed product of aluminum coil, which is formed by rolling the surface of the aluminum coil to form various patterns. The choice of its base material and the different patterns determine its different uses. Embossed aluminum coils are used in a wide range of applications, involving many industries and fields. Whether it is architectural decoration, refrigeration industry, automobile manufacturing, home appliance manufacturing, insulation industry, etc., embossed aluminum coils are used in different application fields. The rolls are different in alloy state and pattern texture. The same thing is that the embossed texture of the embossed aluminum roll not only increases the aesthetics, but also improves the durability, scratch and wear resistance of the aluminum. This article will analyze several typical applications of embossed aluminum coils. 1. Refrigeration industry Embossed aluminum coil has good thermal conductivity and corrosion resistance, and is one of the essential material choices for cold storage manufacturing, refrigerators, freezers and other refrigeration industries. Mainly used in freezers, cold storages, refrigerator linings, air conditioners and automobile evaporators, etc. 3003 embossed aluminum coil, 1050 embossed aluminum coil and 1060 embossed aluminum coil are commonly used choices. The patterns are mostly orange peel and can...

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3 Types of anodized aluminum plate finishes

Anodizing is a metal surface treatment process. After anodizing, the surface hardness, wear resistance, high temperature resistance and corrosion resistance of the aluminum plate will be enhanced, and its appearance will be more high-end and more decorative. The original surface treatment process of aluminum plates determines that anodized aluminum plates have different finishes. This article introduces three types of anodized aluminum plates with different finishes, namely satin anodized aluminum plates, brushed anodized aluminum plates and mirror anodized aluminum plates. Satin anodized aluminum plate Satin anodized aluminum plate refers to an anodized aluminum plate with a satin texture on the surface. The satin effect is achieved by controlling parameters such as temperature, concentration, voltage and time of the electrolyte during the oxidation process. By controlling the parameters, satin-finished alumina plates of different colors can be obtained. Among them, the aluminum natural color satin oxide aluminum plate is the most popular color. In addition, champagne gold, gray, bronze, black and other colors can also be customized. Satin anodized aluminum plates not only have a high-end metal appearance and texture, but also have stronger hardness, wear resistance, corrosion resistance and durability than aluminum plates. They are often used in high-end hotels, office buildings,...

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Properties of 5083 automotive aluminum sheet plate

5083 aluminum sheet plate is a typical 5 series automotive sheet alloy. It has excellent weldability, corrosion resistance, processing and formability and low temperature performance. Among Al-Mg series alloys, it has medium strength performance, and the strength of the welded joint can be compared with that of annealed  the state of the base material is equal and it has reliable corrosion resistance. The mechanical properties of 5083 automotive aluminum sheet plate increase evenly as the temperature decreases, as does the fracture toughness. It is a good automobile cover alloy, especially suitable for business applications. Vehicles, various special vehicles, semi-trailers and other internal and external welded sheet metal structures. Characteristics of 5083 aluminum alloy  It cannot be strengthened by heat treatment;  In order to prevent “age softening” and stabilize corrosion resistance, semi-finished products need to be stabilized;  In order to prevent the reduction of yield strength during repeated annealing, the final cold deformation should be >50%. Composition of 5083 automotive aluminum sheet plate (mass %) Mg4.0~4.9, Mn0.4~1.0, Cr0.05~0.25, Si0.40, F0.40, Zn0.25, Ti0.15, other impurities individually 0.05 , a total of 0.15, and the rest are Al.  The main phase composition of 5083 automotive aluminum sheet plate is: α (Al), β (Al8Mg5),...

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