Lembaran aluminium anodized

Apakah lembaran aluminium anodized?

Lembaran aluminium anod adalah kepingan aluminium yang diletakkan dalam elektrolit yang sepadan (seperti asid sulfurik, asid kromik, asid oksalik, dan lain-lain.) sebagai anod, dan elektrolisis dilakukan dalam keadaan tertentu dan tindakan arus luar. Filem oksida tumpat terbentuk pada permukaan kepingan aluminium, dan sifat tidak berwarna dan berliang filem anod digunakan untuk mewarna dan melindungi matriks aluminium.

Lapisan nipis aluminium oksida terbentuk pada permukaan teroksida kepingan aluminium, dengan ketebalan 5 kepada 20 mikron, dan filem anod yang keras boleh dicapai 60 kepada 200 mikron.

Akhirnya, ia mengakibatkan aluminium lebih keras daripada berlian. Ia biasanya digunakan dalam persekitaran yang keras atau aplikasi yang memerlukan pendedahan kepada unsur-unsur. Proses ini menghasilkan salutan keras yang menggantikan bahan asal. Tambahan pula, ia tidak akan mengelupas seperti karat biasa, jadi kepingan aluminium oksida boleh digunakan dalam banyak aplikasi.

5052 kepingan aluminium mempunyai prestasi anodisasi yang baik, dan perbezaan warna selepas anodizing adalah kecil.

Apakah proses menganodkan kepingan aluminium?

Anodisasi dicapai dengan merendam aluminium ke dalam mandian elektrolit asid dan mengalirkan arus elektrik melalui medium. Katod dipasang pada bahagian dalam tangki anodizing; aluminium bertindak sebagai anod, supaya ion oksigen dibebaskan daripada elektrolit untuk bergabung dengan atom aluminium pada permukaan bahagian yang dianodkan.. Anodizing ialah, Oleh itu, a matter of highly controlled oxidation—the enhancement of a naturally occurring phenomenon.

Proses anodizing terutamanya termasuk:

Cleaning → pretreatment → electrolyte → current and time → anodizing → sealing → cleaning and drying

Pembersihan: Before anodizing, metal parts need to be cleaned to remove surface grease and impurities. The cleaning process is usually carried out with alkaline or acidic solutions.

prarawatan: Metal parts first undergo some pretreatment, such as deburring, grinding or polishing. This can improve the surface finish after anodizing to some extent.

Elektrolit: The metal part is placed in an electrolyte containing an oxidizing agent and other additives. The composition of the electrolyte depends on the metal used and the desired surface treatment.

Current and Time: Make the metal part anodic by adding a direct current to the electrolyte. The current and treatment time are adjusted according to the desired treatment effect.

Anodizing: In the electrolyte, an oxide film is formed on the surface of the metal parts. This process is called anodizing. During this process, the thickness and color of the oxide film depend on the electrolyte and current/time parameters used.

Pengedap: By soaking in hot water or other sealants, the micropores of the oxide film are sealed, thereby enhancing its corrosion resistance and hardness.

Cleaning and drying: Processed parts need to be cleaned and dried to remove excess electrolyte and sealant.

Parameter prestasi kepingan aluminium teranod

Oxide film thickness	Chemical oxidation: the oxide film is thin, with a thickness of about 0.5 kepada 4 mikron. Electrochemical oxidation: the oxide film thickness is about 5 kepada 20 mikron. Hard anodizing: the oxide film thickness can reach 60 kepada 200 mikron.
Oxide film hardness	Extremely hard: HV=1200-1500 Alloy aluminum: HV=400-800
Rintangan haba	Compared with before oxidation, the high temperature resistance performance is greatly improved
Oxide film melting point	Up to 2320K
Kekonduksian	Excellent insulation, breakdown voltage 2000V
Rintangan kakisan	Cemerlang, corrosion resistance for thousands of hours in ω=0.03NaCl salt spray
Lekat	The combination with the body is very strong
Is it poisonous	Environmentally friendly and non-toxic, it can replace stainless steel and traditional spraying and electroplating processes
Rintangan haba	It can withstand temperatures around 1500°C, while ordinary aluminum plates can only withstand 660°C.
Permohonan	Abrasive materials and cutting tools, aluminum parts that require high heat resistance and insulation performance, such as pistons, cylinders, bearings, impellers of hydroelectric equipment, dan lain-lain.

Mengapa menggunakan Aluminium anodis?

Anodized aluminum sheet metal is a type of aluminum sheet that has undergone an anodization process. Anodization is an electrochemical process that thickens the natural oxide layer on the surface of aluminum, making it more durable, tahan karat, and able to hold color and dyes. Here are some key features and uses of anodized aluminum sheet metal:

Enhanced Corrosion Resistance: Anodized aluminum has a thicker and more stable oxide layer on its surface, which provides excellent resistance to corrosion and oxidation. This makes it suitable for outdoor and marine applications.

Increased Durability: The anodization process hardens the surface of the aluminum, making it more scratch-resistant and durable. This makes it suitable for applications where the material may encounter wear and tear.

Pilihan Warna: Anodized aluminum can be dyed in various colors during the anodization process. This allows for a wide range of color choices for decorative and aesthetic purposes.

Electrical Insulation: Anodized aluminum has good electrical insulation properties, which can be advantageous in certain applications where electrical conductivity needs to be minimized.

Decorative and Architectural Use: Anodized aluminum is commonly used in architectural elements, seperti fasad bangunan, dinding langsir, and decorative trim, due to its durability and aesthetic appeal.

Produk pengguna: It is also used in the production of consumer products like cookware, Peralatan, and electronic enclosures, where its durability and resistance to staining are important.

Ringan: Aluminum itself is a lightweight material, and anodized aluminum maintains this property, making it suitable for applications where weight is a concern.

Penyelenggaraan Mudah: Anodized aluminum is relatively easy to clean and maintain, requiring simple cleaning procedures to retain its appearance.

Non-Toxic and Environmentally Friendly: Anodizing is a non-toxic process, and anodized aluminum is considered environmentally friendly because it is durable and long-lasting, reducing the need for frequent replacements.

Ciri-ciri lembaran aluminium anodizing

• 1) Berat ringan, 1/3 weight of stainless steel
• 2) Anti-scratch, the surface hardness reaches Sapphire Grade
• 3) Non-poisonous and environmental protection
• 4) Anti-static, anti-fingerprint, mudah dibersihkan
• 5) The surface anodized layer will never fade or fall off

Kegunaan kepingan aluminium beranod

1. Exposed metal frames on buildings
2. Premium anodized aluminum cookware
3. Outer space satellites
4. Frame materials for outdoor furniture and decorative items
5. Protective cases for modern computer systems
6. Protective cases for modern household appliances
7. Anodized aluminum sheet nameplate or roadsign

Kelemahan kepingan aluminium anodized

harga

The price is expensive. Due to the complex process and high technical requirements, the price of anodized aluminum sheet is much higher than that of mill finish aluminum sheet.

Color difference problem

The color difference problem of anodized aluminum sheets is not caused by production technology because the oxidation bath liquid is prepared from a variety of chemical elements. Every time a batch of aluminum materials is oxidized, the chemical composition in the bath liquid changes, so the bath liquid is oxidized and colored with variable values. Aluminum materials always have color differences.