1050/1060 Aluminum Strip for Transformer Winding

 Why We Use Aluminum Strip for Transformer

The electrical and thermal conductivity of aluminum is only lower than copper. Since the price of copper is much higher than that of aluminum, the most commonly used material for transformer is aluminum strip/foil/sheet.

Characteristics of 1060 Aluminum Strip for Transformer

1060(O) Aluminum strip is mainly used as high- and low-voltage winding for dry-type transformers. It has high conductivity, soft texture, smooth surface and no burr. It is an ideal material for the production of dry-type transformers and a key raw material for the manufacture of transformer winding.

Major brand	A1060(O)/A1050(O)
Thickness	0.2-0.4	0.4-0.8	0.9-1.1	1.2-1.6	1.8-2.0
Tolerance	±0.01	±0.015	±0.02	±0.025	±0.03
Width	<100	100-200	201-500	501-1250	>1250
Tolerance	±0.1	±0.2	±0.2	±1	±2
Burr and Collapse
The width of aluminum belt	Burr’s height	Collapsed side’s height
<0.2	0.01	≥0.05-0.1
0.2-1.0	0.015
1.1-1.5	0.02
>1.6	0.03
Mechanical Property
Major brand	A1060(O)/A1050(O)
Thickness	0.2-0.4	0.4-0.8	0.9-1.1	1.2-1.6	1.8-2.0
Tolerance	±0.01	±0.015	±0.02	±0.025	±0.03
Width	<100	100-200	201-500	501-1250	>1250
Tolerance	±0.1	±0.2	±0.2	±1	±2
Burr and Collapse
The width of aluminum belt	Burr’s height	Collapsed side’s height
<0.2	0.01	≥0.05-0.1
0.2-1.0	0.015
1.1-1.5	0.02
>1.6	0.03
Mechanical Property
U.T.S: 60-95N/mm2	Elongation: >25%
Density in 20℃ :2.703kg/dm3	Max.resistance in 20℃:≤0.02825Ωmm2/m

Original Source: https://www.alumhm.com/application/10501060-aluminum-strip-for-transformer-winding.html

The Surface Quality of Aluminum Strip for Transformer

Aluminum strip for transformer is mainly used in large transformers , solar energy and power industry. The common alloys are 1050, 1060,1070 and 1350 aluminum strips with O temper. The thickness is within 0.2-3mm.

The surface quality of the aluminum strip for transformer winding:

1. The edge of aluminum strip is neat and clean, and free of burs, cracked edges, scratches,those defects.

2. The surface of the aluminum strips are flat.

3. The surface of the aluminum strips is clean, without corrosion marks, oil marks, wrinkles, seams, scratches, bright and dark lines, rubber roller marks, vibration marks, twills, etc.

4. There are no bright spots, roller marks, wheel marks and black lines on the surface of aluminum strip.

5. The surface of the finished aluminum strip is free of yellow oil spots, oil sticking, blistering and tearing phenomena formed by the burning of lubricating oil.

6. Resistivity is less than or equal to 0.028.

7. After chamfering process, the edge of aluminum strip is of round corner and zero burrs.

How to Package Aluminum Fin Stock

There are two packaging methods: jumbo roll packaging and wooden box packaging.

Jumbo roll packaging: The size of the large roll are determined by the width and length customized by the customer.

Wooden box packaging: The general size of the wooden box is 1.4m*1.3m*0.8m. The customer's requirements for aluminum strip width and roll diameter are the deciding factors for the size of the wooden box.

Original source: https://www.hm-alu.com/a/the-surface-quality-of-aluminum-strip-for-transformer.html