The materials of the aluminum strip are cast rolled aluminum coil and hot rolled aluminum coil that are rolled into thin aluminum coil of different thickness and width by cold rolling Mills, and then cut vertically into aluminum strip of different width by longitudinal shear machines according to usage.
Improvements in technology regarding the use of aluminum in transformers have made aluminum-wound transformers the ideal choice for today’s applications.
(1)Chemical Composition(TABLE 1)
| Si | Fe | Cu | Mn | Mg | Cr | Zn | V+Ti | Others | Al. | |
| Individual | Total | |||||||||
| Max. 0.10 | Max. 0.40 |
Max. 0.05 |
Max. 0.01 |
– | Max 0.01 |
Max. 0.05 |
Max. 0.02 |
Max. 0.03 |
Max 0.10 |
Min. 99.50 |
(2)Mechanical properties and electric conductivity(TABLE 2)
| Thickness(mm) | Tensile Strength(Mpa) | Elongation % |
Bending 180 buckling inside radius | Electric conductivity at 20 ºC |
| Over 0.3 to 0.5 | Min. 60 Max. 90 | 20 min. | Close contact | 60.0 min. |
| Over 0.5 to 0.8 | 25 min. | |||
| Over 0.8 to 1.3 | 30 min. | |||
| Over 1.3 to 2.0 | 35 min. | |||
| Over 2.0 to 2.5 | 35 min |
Advantages: Excellent formability, weldability and corrosion resistance.
(3)Application : Chalco transformer aluminium strip for transformer winding 1350 can be used for variable transformer like low or high voltage transformer winding, high frequency transformer,step up or down voltage transformer ,distribution transformers ,etc.
transformer aluminium strip for electrical coil application ranges from 0.3mm to 2.5mm, the alloy 1350 (99.50% aluminum) can be used to meet the minimum industry requirements for strip conductor, is closely controlled to assure smooth, substantially burr-free edges and strip-size availabilities are in capacities exactly equivalent to those of standard copper wire sizes.
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