Definition of Aluminum coil
Aluminum coil is a continuous sheet of aluminum that has been rolled into a coil shape for convenient storage, 交通機関, and processing.
These coils are commonly used in industries such as construction, 自動車, 航空宇宙, エレクトロニクス, とパッケージ.
Aluminum coils come in various alloys, thicknesses, and coatings, depending on their intended application.
Aluminum coil production process
Aluminum coil can be produced from aluminum ingots or other forms of raw aluminum (called cold rolling or direct cast) or from a smelting process directly through rolling (called continuous cast).
Bauxite Mining and Alumina Refining
- The process starts with bauxite, the main raw material for aluminum.
- Bauxite is refined using the Bayer process to extract alumina (al₂o₃).
Aluminum Smelting
- Alumina is converted into pure aluminum through the Hall-Héroult process (electrolytic reduction).
- The process takes place in an electrolytic cell using high voltage electricity and carbon electrodes.
Casting into Ingots
- Molten aluminum is cast into large ingots, slabs, or blooms.
- These are the raw materials for the rolling process.
ホットローリング
- Aluminum sheet is heated to about 400–500°C (750–930°F).
- It passes through a rolling mill, where its thickness is reduced and its length is increased.
- This process enhances the mechanical properties of the metal.
コールドローリング
- ホットローリングの後, the aluminum strip is cold rolled at room temperature.
- This process further improves thickness and increases surface finish, 強さ, そして柔軟性.
- It is essential for applications that require precise dimensions and smooth surfaces.
アニーリング (optional)
- Aluminum coils can be annealed (heat treated) to soften them and relieve internal stresses.
- This step depends on the desired mechanical properties.
Surface treatment and coating (if required)
Aluminum coils can be given a variety of surface treatments:
- 陽極酸化 (耐食性)
- Paint or coating (for decorative or protective finishes)
- Embossed (to add texture)
Slitting and cutting
- Aluminum coils are cut into narrower strips or sheets based on customer requirements.
Coiling and packaging
- ついに, the aluminum sheet is tightly rolled into a coil.
- It is packaged and shipped for use in construction, 自動車, エレクトロニクス, and other industries.
Why Choose Aluminum over Other Metals?
Lightweight Advantage
Aluminum’s standout feature is its low weight compared to materials with similar properties.
This makes it a preferred choice in industries like automotive and aerospace, where reducing overall weight is crucial.
さらに, its lightweight nature lowers transportation costs.
Excellent Workability
Highly malleable, aluminum can be effortlessly shaped, 刻印, or formed to fit various applications.
Its adaptability makes it a go-to material for manufacturing techniques such as roll forming, 描画, およびスタンピング.
優れた腐食抵抗
スチールとは異なります, aluminum naturally resists rust and corrosion, enhancing its durability and longevity in various environments.
費用対効果
Compared to alternatives like copper, aluminum offers a more budget-friendly option without compromising on performance, helping manufacturers manage costs efficiently.
Eco-Friendly and Recyclable
Aluminum’s recyclability makes it an environmentally sustainable choice, as it can be reused repeatedly, minimizing waste and resource consumption.
高い導電率
As a strong conductor of heat and electricity, aluminum provides 62% of the conductivity of electrical-grade copper when measured by cross-sectional area.
しかし, when compared by weight, it outperforms copper with 204% of its conductivity.
Common alloy grades, characteristics and uses of aluminum coils
| 合金グレード | 特性 | 主要なアプリケーション |
|---|---|---|
| 1050 | 高純度 (≥99%), excellent electrical/thermal conductivity, strong corrosion resistance, low strength, easy to process. | Chemical containers, packaging materials (例えば。, アルミホイル), electrical components, 熱交換器. |
| 1060 | Ultra-high purity (≥99.6%), 例外的な腐食抵抗, good ductility in soft temper, conductivity near pure aluminum. | Corrosion-resistant equipment, conductive materials, architectural decoration, food industry containers. |
| 3003 | Manganese alloyed (1.0-1.5%), 中程度の強さ, 優れた形成性, 良好な腐食抵抗, 陽極酸化可能. | Building roofing/wall panels, 自動車ラジエーター, kitchenware, refrigeration components. |
| 3105 | Manganese and magnesium added, slightly higher strength than 3003, good fatigue resistance, surface-friendly for treatments. | Architectural cladding, shutters, vehicle interiors, general fabrication parts. |
| 5052 | Magnesium alloyed (2.2-2.8%), 未解決の腐食抵抗 (特に海洋環境で), medium strength, easy to weld and process. | Marine/automotive sheet metal, 燃料タンク, marine equipment, aircraft fuel tanks, 圧力容器. |
| 5083 | High magnesium (4.0-4.9%) + マンガン, ultra-high strength, seawater corrosion resistance, retains toughness at cryogenic temperatures (-196°C). | 船体, offshore platforms, liquefied natural gas (lng) ストレージタンク. |
| 5754 | Lower magnesium content than 5083, superior weldability, excellent stress corrosion resistance, deep-drawable. | Automotive body panels, welded structures, chemical pressure vessels. |
| 6061 | マグネシウム + silicon alloyed (0.8-1.2% mg, 0.4-0.8% そして), heat-treatable (T6気性), 高強度, balanced mechanical properties. | 航空宇宙コンポーネント, precision machinery parts, rail vehicle structures. |
| 8011 | Iron alloyed (0.5-1.0%), 中程度の強さ, exceptional processability (ultra-thin foil rolling), strong barrier/sealing performance. | Food/pharmaceutical packaging foil, ボトルキャップ, 熱交換器フィン, capacitor foil. |
| 8079 | 鉄 + silicon alloyed (0.7-1.3% fe, 0.05-0.3% そして), higher strength, ultra-high barrier properties, moisture/oxidation resistance. | ハイバリアパッケージ (例えば。, vacuum metallized film), moisture-proof laminates, 医薬品包装. |
China High-Quality Aluminum Coil Supplier – Langhe Aluminum
Langhe Aluminum is a leading China-based aluminum coil supplier, known for providing high-quality aluminum products for various industries.
With a strong commitment to innovation and excellence, Langhe Aluminum specializes in manufacturing premium aluminum coils that meet international standards.
Why Choose Langhe Aluminum?
High-Quality Materials – We use top-grade aluminum to ensure durability, 強さ, and superior performance.
Advanced Manufacturing – Our state-of-the-art production facilities guarantee precision and consistency in every coil.
Wide Range of Applications – Our aluminum coils are widely used in 工事, 自動車, 航空宇宙, パッケージング, and electrical industries.
優れた腐食抵抗 – Our products undergo advanced treatments to enhance longevity and protect against rust and corrosion.
Customizable Solutions – We offer various sizes, thicknesses, and coatings to meet diverse customer needs.
Competitive Pricing – We provide cost-effective solutions without compromising quality, making us a trusted choice for global buyers.
With years of expertise and a dedication to customer satisfaction, ランゲアルミニウム is your go-to supplier for premium aluminum coils in China. Contact us today to learn more about our products and services!
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