1050 1070 1350 Aluminum Coil for Transformer

• Basic Information
  • Alloy Composition: 1050 aluminum coil mainly consists of aluminum with a purity of 99.5% or higher. It contains a small amount of other elements, which have little impact on its performance and are mainly used to improve some processing properties.
  • Dimensions: The thickness usually ranges from 0.2mm to 3.0mm, and the width is generally between 20mm and 1350mm.
• Performance Characteristics
  • High Electrical Conductivity: With a conductivity of over 61%, it can effectively reduce power loss during the transmission of electrical energy in dry type transformers, improving the efficiency of the transformers.
  • Good Softness: The 1050 aluminum coil is soft with an elongation of ≥35% and a tensile strength of 60-95MPa. It is easy to wind into coils of different shapes and sizes, adapting to the manufacturing process requirements of various dry type transformers.
  • Smooth Surface and No Burrs: The surface of the coil is smooth and free of burrs, which can avoid damaging the insulating material during winding and ensure the insulation performance and safety of the transformer.
  • Good Corrosion Resistance: Aluminum itself has a certain corrosion resistance. The 1050 aluminum coil, with its high purity, has better corrosion resistance and can maintain stable performance in different environments, prolonging the service life of the transformer.
• Production Process
  • Rolling: The 1050 aluminum coil is made by hot or cold rolling through industrial roll mills. The rolling process involves incrementally reducing the material’s thickness by successive passes between two rolls.
  • Surface Treatment: It may go through processes such as degreasing and passivation to ensure a clean and smooth surface, which is beneficial for winding and improving insulation performance.
• Application Advantages in Dry Type Transformers
  • Cost-Effectiveness: Compared with copper coils, 1050 aluminum coils are more cost-effective. They can significantly reduce the manufacturing cost of dry type transformers under the premise of meeting performance requirements.
  • Light Weight: The density of aluminum is 2.7g/cm³, which is much lower than that of copper. The use of 1050 aluminum coils can reduce the weight of dry type transformers, making installation and transportation more convenient.
  • Good Compatibility: It has good compatibility with various insulating materials and can work stably with insulating materials such as paper, kraft paper, mylar and glass cloth to ensure the overall performance of the transformer.

Basic Information

• Alloy Composition: 1070 aluminum coil mainly consists of aluminum with a minimum purity of 99.7% by weight, along with trace amounts of other elements like silicon, iron, copper, manganese, etc.
• Dimensions: The thickness typically ranges from 0.1mm to 6.0mm, width from 10mm to 2650mm, and the length can be customized.

Performance Characteristics

• Electrical Conductivity: It has excellent electrical conductivity, reaching over 35.7 S/m, which helps reduce power loss during electricity transmission in transformers, thus improving efficiency.
• Thermal Conductivity: With high thermal conductivity, it can quickly dissipate heat generated during transformer operation, maintaining the temperature stability of transformer windings and prolonging the service life of the transformer1.
• Mechanical Properties: In the O temper, it has a tensile strength of 55-95MPa, a yield strength of 0-15MPa, and an elongation of 30%. It has certain tensile strength, elongation and plasticity, being easy to process into various shapes and sizes to meet the manufacturing needs of transformers.
• Corrosion Resistance: The surface of 1070 aluminum coil easily forms a dense and firm Al₂O₃ protective film, which can effectively resist the erosion of various corrosive media in many environments, helping to extend the transformer’s service life1.

Advantages in Transformer Applications

• Cost-Effectiveness: Compared to copper coils and some high-alloy aluminum coils, 1070 aluminum coils are more affordable, which can significantly reduce the manufacturing cost of transformers1.
• Light Weight: The density of aluminum is about 2.703g/cm³, which is much lower than that of copper. Using 1070 aluminum coils can reduce the overall weight of the transformer, facilitating installation and transportation1.

Basic Information

• Alloy Composition: 1350 aluminum coil has an aluminum content of not less than 99.35%, and its main alloying elements are Fe and Si, belonging to the 1 series Al – Fe – Si aluminum alloy.
• Dimensions: The thickness usually ranges from 0.10mm to 3.00mm, and the width is generally between 10mm and 1500mm.

Performance Characteristics

• High Electrical Conductivity: In the annealed state, the electrical conductivity of 1350 aluminum coil can reach over 62% IACS, which can effectively reduce power loss in the transformer and improve transmission efficiency.
• Good Mechanical Properties: The tensile strength of 1350 aluminum coil is 60 – 95N/mm², and the elongation is more than 25%. It has good ductility and can be easily wound into coils of various shapes and sizes to meet the manufacturing process requirements of transformers.
• Excellent Corrosion Resistance: The surface of the 1350 aluminum coil is easy to form a dense oxide film, which can resist the erosion of general corrosive media and has good chemical stability in different environments, helping to extend the service life of transformers.
• Good Thermal Conductivity: It can quickly dissipate the heat generated during the operation of the transformer, keeping the temperature of the transformer windings stable and reducing the risk of overheating.

Advantages in Transformer Applications

• Low Cost: Compared with copper coils and some high – alloy aluminum coils, 1350 aluminum coils are more cost – effective, which can significantly reduce the manufacturing cost of transformers.
• Good Formability: It is easy to process and can be made into various shapes of coils through processes such as rolling and winding, which is convenient for the production and manufacturing of transformers.
• Wide Applicability: It is suitable for the production of various types of transformers, including dry – type transformers and oil – immersed transformers.