Burr-free Round Edge Aluminum Strip For Transformer

In modern power systems, dry-type transformers are widely used due to their advantages of small size, light weight and good insulation performance. In the manufacturing process of dry-type transformers, the quality of aluminum strip, as a key material for the windings, directly affects the overall performance and service life of the transformer. Burr free round edge aluminum strip for transformer is a kind of well treated material ideal for transformer winding manufacturing due toits characteristics and advantages.

Transformer aluminum strip is usually selected from 1060 aluminum alloy, an alloy with an aluminum content of more than 99.6%, excellent electrical conductivity and good machinability. In addition, the alloy also has excellent corrosion resistance, suitable for a variety of harsh working environment. In terms of condition, O-temper (soft state) is the most commonly used processing state for transformer aluminum strip, which not only ensures the material's softness for subsequent processing, but also ensures that the surface of the final product is smooth and flawless. In order to meet the design requirements of different transformers, aluminum strips are generally available in thicknesses ranging from 0.08mm to 3.00mm and in widths extending from 20mm to 1650mm. This dimensional flexibility allows manufacturers to tailor production to specific requirements, thereby optimizing costs and increasing efficiency.

Burr-free round edge refers to the special treatment of the edges of transformer aluminum strips to remove any sharp edges or protrusions that may be present and to round off the edges into a smooth transition. This process offers a number of benefits:
1. Reduce the risk of electrical failure:
If the conductor inside the transformer has sharp edges, when the current passes through, it may produce local electric field concentration, resulting in partial discharge phenomenon, which not only affects the performance of the transformer, but also may cause aging or even breakdown of the insulating material, which may lead to electrical failure. And round edge can disperse the electric field, reduce the possibility of partial discharge.
2. Enhance the mechanical strength:
Round edge treatment helps to reduce the stress concentration points, which is particularly important for long-term mechanical stress of the winding. Smooth edges are better able to resist fatigue damage and extend the service life of the windings.
3. Optimize the assembly process:
Round edge aluminum strip is easier to bend and form, making the manufacturing of windings smoother. In addition, it reduces friction with other components and prevents damage to other parts during assembly.
4. Improve the overall efficiency:
Due to the reduction of partial discharge and improved assembly quality, the use of round edge aluminum strip can help transformers achieve higher energy conversion efficiency and more stable and reliable operation.
5. Compliance with industry standards:
Many national and regional standards for the manufacture of power equipment require proper edge treatment of metal parts to ensure product quality and safety. Therefore, the round edge of aluminum strips is also to meet the requirements of these specifications.

In summary, 1060-O burr free round edge aluminum strip for transformer is undoubtedly an ideal material for transformer manufacturing. It not only provides the necessary physical and chemical properties, but also enhances product safety and durability through meticulous edge finishing. As the demand for energy efficient solutions in the power industry continues to grow, the use of this high quality aluminum strip will surely drive transformer technology to the next level.