Transformer aluminum foil, commonly referred to as transformer aluminum strip or transformer aluminum winding, is a crucial component in transformer manufacturing. It is typically made from high-purity aluminum and is used for winding transformer coils due to its excellent electrical conductivity and thermal conductivity properties. The aluminum foil is carefully wound around the transformer’s core to create the primary and secondary windings, facilitating the efficient transfer of electrical energy between them. Its high conductivity allows for minimal energy loss during power transmission, while its thermal conductivity helps dissipate heat generated during operation, ensuring the transformer operates efficiently and reliably. Transformer aluminum foil is available in various thicknesses and widths to suit different transformer designs and specifications, offering flexibility and versatility in transformer manufacturing processes.
Aluminum Foil is widely used in oil-immersed transformers, dry transformers, electric reactors, and other similar electrical instruments.
1.Standard: The Aluminum Foil conform to GB/T3880-2012、GB/T3190-2008、YS/T713-2009 and Enterprise Standards
2.Production Range and technical parameter:
Alloy number | Temper | Thickness (mm) | Width(mm) | Coil d (mm) | Coil D (mm) | General Application |
---|---|---|---|---|---|---|
1050 | 0 | 0.1-4.0 | 6-2000 | 400/500 | 1000 | Transformers |
1060 | ||||||
1070 |
NO | Inspection item | Inspection standard |
---|---|---|
1 | Appearance | 1. The material will be free from any oil or grease, and the sheet surfaces will be perfectly smooth, and free of any scratches grooves, marks, indentation, imperfection, or any metallurgical defect(cracks, splinters).2. The coils will be free of from any swarf and dust which are detrimental to their use |
2 | Thickness tolerances | ±5% |
3 | Width tolerances | ﹢0/-1mm |
4 | Tensile strength Rm (Mpa) | 60~90 |
5 | Yield strength RpO,2(Mpa) | ≥15 |
6 | Elongation(A50mm) | ≥30% |
7 | Al(%) | ≥99.7 |
8 | Density Kg/dm3 | 2.7 |
9 | Maximum resistivity at 20°C | ≤0.02801 |
10 | Burr in the edge | No burr feeling when touching the edges |