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Aluminum winding materials

Aluminum Foil for Transformer Windings

Engineering illustration of aluminum, foil; not to scale
Engineering illustration · Not to scale. Aluminum; foil. Confirm material construction and dimensions on the drawing.

Aluminum winding foil is used to form the current-carrying layers of a transformer coil. Specify the alloy, foil dimensions, edge condition and coil format, then match the winding and joining process to the transformer design.

Construction and specification

Material construction
Specified aluminum grade and temper
Product form
Foil

Selection and processing

For the transformer winding, define the foil edge, interlayer insulation, roll build and termination. Grade and temper belong to the foil specification; winding loss and temperature rise belong to the completed coil trial.

Standards context

Use the drawing and a material/form-specific purchase specification. Round-wire references do not qualify rolled strip, foil or flat wire. Confirm edition, methods and acceptance criteria.

Standards scope references

Product questions

What should I include in an aluminum winding-foil inquiry?

Include alloy and temper, thickness, width, edge and surface requirements, roll dimensions and quantity. Add the winding, insulation and joining requirements from the transformer design.

Prepare your inquiry

  • Width, thickness and tolerances
  • Edge condition, burr, surface and roll dimensions
  • Metal grade and temper
  • Surface finish or coating, joining method and inspection requirements
  • Quantity, spool or coil format, packaging and delivery destination
Send Your Winding Specification

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