1050 1060 1070 O Aluminum foil rolls used in dry-type transformer are made of high-quality pure aluminium. They have the characteristics of high conductivity, soft quality, smooth surface and no burr. They are ideal materials for dry-type transformer production. They are the key raw materials for transformer winding. They require a lot of technical indexes such as conductivity of 1050 1060 1070 O Aluminum foil rolls, burr crimping, side bending and surface quality. They can make dry-type transformer in application. Transformers have the advantages of small size, light weight, good insulation, flame retardant, pollution-free, small partial discharge, moisture resistance, stable and reliable operation, low noise and low maintenance cost. They are widely used in high-rise buildings, underground facilities, commercial centers, residential areas, hotels, hotels and coastal wet areas. Relying on the strong technology and market advantages of domestic dry-type transformer raw material industry, Signi Aluminum has strictly controlled the process of casting, rolling, heat treatment and finished product shearing from the melting and casting process of aluminium strip. By controlling alloy composition, optimizing rolling and annealing process, the products have achieved higher electrical conductivity and mechanical properties. The products are exported to the United States, Latin America and Russia. And other countries, and by the customer's unanimous praise.



 
Aluminum foil rolls for transformer winding of dry-type transformer are usually made of 1060 aluminium strip. The aluminium content of 1060 aluminium strip reaches 99.6%, which is also called pure aluminium strip. It belongs to a common series in the family of aluminium strip. Advantages of this series of aluminium sheets: the most commonly used series, relatively single production process, relatively mature technology, price compared with other high-grade alloy aluminium sheets has a huge advantage. With good elongation and tensile strength, it can fully meet the requirements of conventional processing (stamping, drawing) with high formability. For industrial pure aluminium, it has high plasticity, corrosion resistance, electrical conductivity and thermal conductivity, but its strength is low, heat treatment can not strengthen the machinability is not good; it can be gas welding, hydrogen atom welding and contact welding, not easy to braze; it is easy to withstand all kinds of pressure processing and extension, bending.
 
Chemical composition of aluminum foil rolls for transformer winding:
 
Aluminum Al: 99.60, silicon Si: 0.25, copper Cu: 0.05, magnesium Mg: 0.03, zinc Zn: 0.05, manganese Mn: 0.03, titanium Ti: 0.03, vanadium V: 0.05, iron Fe: 0.350, note: single: 0.03.
 
Special aluminum foil rolls for transformer winding:
 
Material: 1060-O, 1050, 1050 A, 1070, 1070A, 1350
Usage: Aluminum foil and transformer strip for dry-type transformer
Thickness: 0.2mm - 3.0mm, width: 20mm - 1650mm.
Description: Smooth surface without scratches. The edge can be chamfered (round corner, round edge), without burrs, which is superior to the national standard. Resistivity is less than or equal to 0.028.
Packaging: wooden pallet with inner diameter of 300 mm or 500 mm. Packing with moistureproof paper and intermediate paper sleeve