Recycling and Remanufacturing of Scrap Transformer Grain Oriented and Amorphous Steel Cores into New Amorphous Steels

INVENTION REFERENCE NUMBER

202505966

  • Energy and Utilities
  • Manufacturing
Large electrical transformer station set against the backdrop of a rural landscape at dusk. Image from Envato

A process has been developed to recycle and remanufacture materials recovered from end-of-life transformer cores into new amorphous transformer core materials. The technology addresses growing shortages of transformer components and limited supplies of specialized electrical steels used in power equipment. By converting reclaimed core materials and industrial scrap into new amorphous alloy cores, the approach enables lower-cost transformer production while reducing dependence on imported materials. The resulting cores are designed to maintain strong magnetic performance and reduced electrical losses, supporting more efficient and reliable transformer systems across power transmission and distribution infrastructure.

Description

This technology provides a method for recovering valuable materials from retired transformers and industrial scrap and converting them into new amorphous transformer core alloys. Scrap grain-oriented electrical steel and amorphous core materials are recovered from decommissioned transformers and prepared through cleaning, separation of windings and coatings, and material conditioning. The reclaimed materials are then processed through a controlled melting and alloy preparation stage to produce a new amorphous alloy composition suitable for transformer core manufacturing.

The process supports the creation of high-induction amorphous alloy materials engineered to exhibit low electrical losses and strong magnetic properties. The resulting material can be formed into thin amorphous laminations and treated to produce structures that reflect the characteristics of amorphous transformer core materials. This approach enables transformer cores with improved magnetic performance while reducing overall component size and material usage.

Feedstock for the process can include reclaimed transformer cores, mixed recycled alloys, and industrial manufacturing scrap. By enabling the reuse of these materials, the technology provides a pathway for domestic transformer manufacturers to recover valuable resources and expand the supply of core materials used in power equipment.

Benefits

  • Converts retired transformer core materials into new high-performance amorphous alloys
  • Reduces dependence on limited supplies of grain-oriented electrical steel
  • Lowers transformer core electrical losses compared with conventional materials
  • Decreases transformer size and material requirements

Applications and Industries

  • Power transformer manufacturing
  • Transformer refurbishment and component replacement
  • Electrical equipment manufacturing
  • Power transmission and distribution infrastructure
  • High frequency transformer applications

Contact

To learn more about this technology, email [email protected] or call 865-574-1051.



Contact

To learn more about this technology, email [email protected] or call 865-574-1051.