Aluminum Strip For Transformer Winding

Your Premier Aluminum Strip For Transformer Winding Manufacturer In China

Aluminum Strip For Transformer Winding

Aluminum strip for transformers winding, also called aluminum transformer strips, which are mainly used in the dry type and oil-immersed transformers manufacturing industries.

The aluminium strip for transformer winding range from 0.2 mm to 3.5 mm thickness and 10 mm to 1600 mm width.

The strips are wound over insulating material like paper, kraft paper, polyester film or glass cloth.

With high conductivity, good corrosion resistance and beautiful appearance, transformer aluminum strips are essential materials in the process of producing transformers.

Whatever size at whatever tight tolerance of aluminum strip for transformer you demand, HZW here is sure to have it!

aluminum strip for transformer winding

Aluminum Strip For Transformer Winding Specifications

Product NameAluminum Strip For Transformer Winding
Grades1050, 1350, 1060, 1070
TemperO
Thickness0.2mm-3.5mm
Width10mm-1600mm
EdgeRound
Quantity Tolerance±10%
Paper Core Internal
Diameter
Ø 150mm,Ø300mm, Ø400mm, Ø500mm paper core, special internal diameter core and without paper core on
special request
Surface TreatmentThe strip has a smooth surface, free from scratches and impurities
Electrical ConductivityTransformer windings made of 1050 O in annealed condition is guaranteed to be better than 60 % ACS.
Transformer windings made of 1060 O in annealed condition is guaranteed to be better than 61.5 % ACS.
Transformer windings made of 1070 O in annealed condition is guar-anteed to be better than 62.7 % ACS.
Transformer windings made of 1350 O in annealed condition is guaranteed to be better than 62 % ACS.
ApplicationsTransformer Winding
PackagingWooden Pallet/Wooden Case
Payment Terms30% TT deposit and 70% balance before shipment, 100% LC at sight
Delivery Time7-10 working days
MOQ5 Tons
Shipping PortShanghai/Ningbo port
SampleThe sample of Aluminium strip is available
RemarkAluminium strip can be customized

Aluminum Strips For Transformers Winding Technical Specifications PDF Download

This technical specification aims to define the chemical/mechanical properties and standards for soft temper O aluminum strip for transformer winding.

Any hard copy in your possession should be considered not up-to-date. Contact with HZW Quality Department for up-to-date document.

More technical specifications of transformer winding temper O aluminum strips, please click the right button for PDF file download.

Aluminum Strip For Transformer Winding Grades

Aluminum strip is the main raw material in transformer winding, according to the actual needs of the design of different combinations of foil width, aluminum foil can be divided into three, four and five strips.

Aluminum strip for transformer winding has good ductility and thermal conductivity, which can significantly improve the heat dissipation performance of transformers.

1xxx series aluminum strips for transformer winding grade mainly include 1050, 1060, 1070, 1350, 1100 aluminium strips for transformers grade etc.

They represent the series of pure aluminium product series.

The 1000 series aluminium strips for transformers grade are characterized by high plasticity, corrosion resistance.

Aluminum Strip For Transformer Winding Chemical Composition

1050 O Aluminum Strips Chemical Composition(%)
ElementAlSiFeMgZnMnTiCuV
Standard Value≥99.50.04310.2030.00130.00930.01040.020.00220.0039
1060 O Aluminum Strips Chemical Composition(%)
ElementAlSiFeMgZnMnTiCuV
Standard Value≥99.60.04310.2030.00130.00930.01040.020.00220.0039
1070 O Aluminum Strips Chemical Composition(%)
ElementAlSiFeMgZnMnTiCuV
Standard Value≥99.70.04310.2030.00130.00930.01040.020.00220.0039
1350 O Aluminum Strips Chemical Composition(%)
ElementAlSiFeMgZnMnTiCuV
Standard Value≥99.50.04310.2030.00130.00930.01040.020.00220.0039
aluminium foils strips for transformers winding edges

Aluminum Strip For Transformer Winding Edge Option

Many products managers and engineers have the trouble of transformer aluminum strips edges.

In the actual operation process, due to the influence of steel strip hardness and unloading speed, it is difficult to effectively control the edge of the transformer aluminum strip.

However, after our technical personnel have studied for a long time, we have found a solution to this problem. The edge finishing of our aluminium strips shall meet the requirements of the figures show.

Aluminum Strips For Transformer Winding: The Ultimate Guide

Aluminum strips are one of the most important metal materials in transformer industry.

With the development of science and technology, more and more aluminum strips for transformers are widely used in the transformer industry.

So what’s the application? What’s the production process of aluminum strips for transformers?

In this guide, we will show you details about all.

So enjoy the read...

What are transformers winding aluminum strips?

what are transformers aluminum foils strips

Aluminum strip, also called aluminum transformer strip foil, is mainly used in the dry type transformers winding.

The commonly used alloys are 1060, 1050, 1070, 1350, temper O state.

The thickness usually between 0.2mm-3.5mm.

The transformer aluminum strip can be customized according to customer requirements of different widths and thicknesses.

1.What is the 1050 O aluminum strip in a transformer?

The 1050 O aluminum strip in a transformer is the most commonly used material in transformers.

The reason why it can be widely used in transformers is related to its excellent properties.

1050 O aluminum strip has high electrical conductivity and thermal conductivity. In the actual application process of transformers, 1050 O aluminum strips are often used as support materials to form transformer windings, which can reduce the loss of transformers and improve the performance of transformers.

The thickness of the 1050 O aluminum strip in a transformer is generally between 0.1 mm and 1 mm. It adopts a single-layer or double-layer structure, which can effectively reduce the leakage magnetic field of the coil and improve its insulation performance.

The transformer 1050 O aluminum strip is a kind of connecting material for winding coils, which is wound on the coil in a certain way to form a specific inductance, mutual inductance or distributed capacitance. In addition to this kind of connection material, there are other forms of connection between coil turns, such as soldering connections and welding connections.

2.What is the 1060 O aluminum strip for transformer winding?

1060 O aluminum strip for transformer winding, the content is 99.6%, mainly used for some high and low voltage electrical equipment, such as various transformers winding. The common state is O state, so it is also called aluminum strip for transformer winding.

The aluminum strip in the electrical equipment industry has very high requirements on its performance, which requires the flexibility of the aluminum belt to be good enough.

This requires that the 1060 O aluminum strip for transformer winding has a very high elongation. In addition, it should have a good crack resistance and uniformity. meet

1060 O aluminum strip for transformer winding is mainly made of 1 series pure aluminum strip product, tensile strength can reach more than 135Mpa, elongation is up to 15%, the finished product has good electrical conductivity, thermal conductivity and corrosion resistance.

1060 O aluminum alloy has high plasticity, corrosion resistance, electrical conductivity and thermal conductivity. But they have lower strength than other alloys.

1060 O aluminum strip has high plasticity at annealed state and hardening phenomenon in semi cold hardening, good corrosion resistance, good weldability, poor machinability, but with extrusion and stretch forming high performance. The electrical conductivity of 1060 O strip is about 60%IACS. The density is 2.7 g/cm3.

3.What is the 1070 O aluminum strip for transformer winding?

The 1070 O aluminum strip for transformer winding has the advantages of high conductivity, good corrosion resistance, high thermal conductivity and large extension ratio.

The annealing state is O.

The 1070 O aluminum strip for transformer winding can be used to make dry-type transformers, oil-immersed transformers and reactor windings.

The 1070 O aluminum strip for transformer winding has a density of 2.7 g/cm3 and the tensile strength is 60-105 MPa, which can meet the strength requirement of aluminum strip transformer winding.

The elongation is 15-30%, which can meet the elongation requirement of aluminum transformer winding. The electrical conductivity is ≥65%IACS or ≥60%IACS.

The 1070 O aluminum strip for transformer winding has good heat dissipation and does not increase the temperature rise of the coil during long-term operation, thus prolonging the service life of the coil. The use of 1070 O aluminum strip for transformer winding can reduce the mass manufacturing cost of transformers by 15%.

Advantages of 1070 O aluminum strip for transformer winding:

1. Good plasticity after annealing;

2. Easy to process and weld;

3. Excellent corrosion resistance;

4. High conductivity and thermal conductivity;

5. Low strength;

6. Good elongation (≥20%) and other characteristics.

4.What is the 1350 O aluminum strip for transformer winding?

1350 O aluminum strip for transformer winding is widely used in the transformer industry, such as oil-immersed transformers and dry-type transformers.

The 1350 O aluminum strip for transformer winding can be divided into two types: bare and coated.

The bare type is mainly used as the winding material of oil-immersed transformers, and the coated type is mainly used as the interlayer insulation material.

Features of 1350 O aluminum strip for transformer winding:

1. Aluminium strip 1350 has excellent elongation and tensile strength, suitable for winding forming;

2. Good plasticity, uniform thickness, no burr after stamping;

3. Excellent electrical conductivity and thermal conductivity properties;

4. Good corrosion resistance and weldability;

5. Smooth surface quality, low pinhole degree;

6. High temperature resistance, can withstand the test of high temperature 130℃.

What are the applications that aluminum strips for transformers winding can be used?

Various types of connections are made on the winding according to the requirement and the number of phases in the transformer.

For example – star connection and delta connection is made in three phased transformers.

Aluminum strip for transformer winding has the advantages of high electrical conductivity, light weight, soft texture and so on.

It can fully meet the performance requirements of dry-type transformers, oil-immersed transformers and other transformers.

Aluminum strip for transformer winding are also known as aluminum foil strip for transformer, which is widely used in the production of dry type transformers, oil-immersed transformers, high and low voltage transformers and so on.

What are the advantages of using aluminum strips for transformers winding?

The electrical conductivity of aluminum strip for transformer winding is as high as 61%, while that of pure copper is only 58%.

This means that the same section of aluminum strip is thinner than copper strip, which can reduce the thickness and volume of transformer windings.

Aluminum strip used in transformer winding has more advantages:

  • It has excellent flexibility and can be made into thin sheets with a thickness of 0.08 mm or less.
  • The surface oxide film is easy to remove and does not affect the insulation strength during winding.
  • The elongation rate is high, and it can be stretched over 2 mm without breaking.
  • Excellent plasticity, can be made into a variety of shapes.
  • Good adhesion between layers is conducive to the formation of good coils by means of adhesive tapes or interleaving paper.

How to buy aluminum strips for transformers winding?

If you want to buy aluminum strips for transformers, you should know, there are many suppliers and manufacturers produce aluminum strips and supply to many industries like transformer industry.

But in fact, not all the suppliers have the ability to produce good quality products, some of them just choose cheaper materials but with high price which is not a good choice for users.

Here is a quick guide on how to choose a good supplier.

  • First, you should ask the manufacturer whether they can do the inspection themselves before delivery. Most of the large manufacturers have their own inspection team, they will strictly inspect all the goods before delivery.
  • Second, you should ask if they use 100% pure raw material to produce your goods, because there are some suppliers use recycled raw material or mixed raw material which may cause problem during using.
  • Third, it is better to visit their factory by yourself and check the production line and warehouse by yourself. It will be great if you can check their production process and production equipment. Because it is very important for you to know how they control the quality from process till delivery.

What is aluminum strips for transformers winding hardness?

The typical Brinell hardness for the strip material must determinate after annealing process (Hardness Brinell Typical: 18HB).

What is the packaging standard of aluminum strips for transformers winding?

aluminum foils strips for transformers packaging standards

The packing for aluminum strips for transformers winding is mainly about wooden pallet and wooden box.

Aluminum strip length of each roll should be same, packaging mark should have clear and complete information.

  1. Wooden Pallet: Standard export package, no fumigation; Pallet size: 1.1m x 1.1m x 0.8m; Gross weight: 1 Ton; 4 pallets/20′ FCL; 8 pallets/40′ FCL Or as per customer’s requirements.
  2. Wooden Box: The standard export package with fumigation certificate, it can avoid any potential damage during the transportation.

How aluminum strips for transformer winding are made?

The aluminum strip for transformer winding is made of high-quality aluminum material, which has the characteristics of high conductivity, soft texture, smooth surface, no burrs and no waves. The fineness of aluminum foil can be controlled at 0.2 mm or less, and the alloy composition and temper can be adjusted according to customer requirements. The thickness tolerance is ±0.007 mm, the width tolerance is ±1mm, the diagonal difference is ≤1mm and the surface quality is good.

aluminium foils strips for transformers winding production process

The following will introduce you to the production process of aluminum strips for transformers winding:

1. The raw material enters the furnace and heats up to remove impurities;

2. The ingot is cut into thick plates;

3. Put the thick plate into a cold rolling mill for rough rolling;

4. Put it into a hot rolling mill for finishing;

5. Annealing by heating and holding at a certain temperature;

6. Cutting outside by shearing machine;

7. Packaging and transportation

How to search the hs code of aluminum strips for transformers?

To find out the detailed HS code of related aluminum strips, you need to determine the specifications and applications of the strips.

The following are the part of aluminum strips for transformers
HS code:76069100.00