The grade of aluminum foil for transformer

The aluminum foil for transformer is mainly 1000 and 3000 series aluminum alloy. Because of the aluminum has advantages of thermal conductivity, lightweight, form-ability, environment protection, resource saving, recycling, health safety and so on, it is widely used in electronic appliances and transformers. Aluminium foil strip is used as a conductor in transformer winding to wound on the core instead of copper windings. Transformer aluminum foil is the main material of transformer winding, which directly affects the quality of transformer. What are the grades of aluminum foil strip for transformer?

Transformer aluminum foil and strip are usually use 1060, 1070 and 3003 aluminum foil strip, which belong to the conventional series in the aluminum strip grades. Between these 3 grades, 1060 aluminum strip is the most widely used one. The thickness of aluminum foil for transformer is generally between 0.02-0.055 mm. The 1000 series and 3000 series aluminum strips belong to ordinary aluminum alloys. Due to the relatively simple production process, the technology is relatively mature. Compared to 5000 and 6000 series aluminum products, 1000 and 3000 series aluminum alloy have the advantage on the price, but generally speaking, 5000 and 6000 series aluminum products belong to high-level products and the production process is more complicated.