APERAM Alloys Amilly

A group company of ARCELORMITTAL

315, rue du Marechal Juin
F-45200 AMILLY

Phone: +33 – 2 – 38 95 12 12
FAX: +33 – 2 – 38 85 80 30

Web: www.aperam.com/en/alloys-amilly

Quality management: Certificates

Representation in Austria since 1974

Burde & CO GmbH
Phone: +43 – 1 – 4023973 – 0
Email: service@burdeco.com

Mecagis is a manufacturing facility for the further processing of iron-nickel alloys. The primary material comes exclusively from our own group APERAM Nickel Alloys S.A. in Imphy. The specialties are stamping, surface treatment, e.g. lapping and winding of toroidal cores. Mecagis is specially equipped for the heat treatment of magnetic alloys.

Toroidal tape cores

Nanophy® – Nanocrystalline

The cores are wound from an iron-based alloy with a very fine-grained crystalline structure.Data sheet Nanophy® (PDF)

  • Height 5…64 mm
  • AD 12…170 mm

made of iron-nickel magnetic alloys

The cores are wound from cold-rolled, Fe-Ni or Fe-Co tape

  • Tape thickness 0,02 till 0,30 mm
  • Min. Height 3…10 mm
  • Min. ID 5…30 mm

made of iron-silicon – Imphysil®

The cores are wound from cold-rolled, grain-oriented Fe-Si tape

  • Tape thickness 0,05 – 0,10 – 0,30 mm
  • Height 10…30 mm
  • AD smaller 45 mm
  • ID greater 11 mm
Stamped parts made of soft magnetic alloys
  • Transformer sheets
  • Rotor -Stator laminations
  • Relay parts
Expansion alloy stampings
  • cold rolled, bimetals
  • edge welded, trimetals

More information about Nanophy®

Nanophy® is a nanocrystalline soft magnetic alloy of FeSiBNbCu

The Nanophy® Alloy is closely related to the amorphous soft magnetic alloys. Nanophy® is a rapidly solidified iron-based alloy with a very fine-grained structure. Typical grain sizes are 10-20 nanometers, hence the term ‘nanocrystalline’. This structure is crucial for the extraordinarily good soft magnetic properties, which can be adjusted over a wide range by heat treatment under the influence of external magnetic fields. The low temperature dependency of the parameters should be emphasized.

The outstanding magnetic values ​​are evident in comparison to the classic soft magnetic materials: Data sheet Nanophy® (PDF)

The method of production

With the help of the so-called rapid solidification, it is possible to give the metal unique and previously unknown physical and chemical properties. The HF-heated melt is sprayed at short intervals onto a cooled casting wheel rotating at a peripheral speed of 100 km/h (planar flow casting). In just a thousandth of a second, the molten metal is cooled down from 1300 to 300 degrees Celsius (i.e. 1 million degrees C per second!).

This moment is the crucial one. Because this is where the 20-25 micron thin strip gets its unique combination of special magnetic and mechanical properties. In the short time the melt cannot solidify in a crystalline form, the amorphous (disorganized) state that occurs is retained even at room temperature. The desired magnetic properties are set by heat treatment at a comparatively moderate 500-550 degrees C.

meltspin

Characteristics from the comparison
  • Wide range of permeability: 20 000 till 200 000 (and more at 50 Hz)
  • High saturation induction: 1,25 T
  • Wide operating temperature range: -40°C till 150°C
  • Low coercivity: Hc< 10 mA/cm
  • Low magnetostriction: < 5 ppm
  • Stable permeability over time and temperature: Dµ<10% at 150°C and 200h
  • Minor losses: 0,5 W/kg at 0,1T and 20kHz
  • Reduction in volume and weight compared to ferrites and FeSi cores
  • Insensitive to vibrations and oscillations