TOSHIBA Top page Contact Us
TOSHIBA MATERIALS Top Page Product Information Application Examples FAQ Research & Development Company Information Site Map

Top page > Product Information > Search by Product Categories > Magnetic Parts

Japanese

Product Information

Magnetic Parts

  1. Amorphous magnetic parts
  2. Magnetic materials for cryogenic regenerator matrices
  3. Rare-earth cobalt magnets

Amorphous magnetic parts

Last resort to make advanced high-frequency circuits

Amorphous ribbon
Amorphous ribbon

Product Information

Outline

Amorphous alloys, with a non-crystalline structure, have a variety of characteristic properties and excel in magnetic properties.

Toshiba Materials manufactures a cobalt-based amorphous alloy. We take advantage of the excellent magnetic properties of the alloy in high-frequency circuits and merchandize it in the field of magnetic parts for electronics.

Advantages

Excellent magnetic properties in high-frequency circuits.

  • Low loss
  • High magnetic permeability (high inductance)
  • High rectangularity (saturability)

FAQ

FAQ on amorphous magnetic parts

PDF file download

To browse PDF files, you have to install Adobe Reader.
Adobe Reader download page [a new window will open]

Magnetic materials for cryogenic regenerator matrices

Magnetic regenerator material -Guide material to the ultra-low-temperature world-

Magnetic materials for cryogenic regenerator matrices

Product Information

Outline

Magnetic regenerator material is a rare-earth metallic compound, and has large specific heat in the region of ultra-low temperature. Conventionally, lead was used for this purpose with insufficient performance because the specific heat of lead drops abruptly in the working region. Our material maintains sufficient specific heat under 4 K without liquid helium.

Advantages

  • Our material is an environmentally friendly product because it is a substitute for lead.
  • Our material has a large change in specific heat that is produced by magnetic phase transformation under 15 K.
  • Our material is spherical-shaped powder, whose diameter is 100 to 300 μm on average, which reduces loss in gas pressure.
  • Our spherical-shaped powder material is free from deformation or disintegration even after a long period of service.

Applications

Ultra-low-temperature refrigerator for superconductivity devices

  • Gifford McMahon (GM) refrigerator
  • Pulse-tube refrigerator

Example of superconductive facilities

  • MRI
  • Magnetically suspended vehicle
  • Cryopumps
  • Superconductive filters for communication facilities

Rare-earth cobalt magnets

TOSREX® Most reliable magnets used under high temperature

Rare-earth cobalt magnets

Product Information

Outline

Rare-earth cobalt magnets (TOSREX®) can be used at high temperature because they have a higher Curie point and stable magnetic properties. We offer various types of magnets in a series including those with high magnetic flux density and those with high coercive force. We also offer cost-effective magnets.

Advantages

High heat resistance

  • Curie point 780 – 860 °C
  • Temperature coefficient of residual magnetic flux density -0.036% / °C

Applications

  • Magnet couplings
  • Electric motors
  • Magnets for sputtering equipment
  • Actuators
  • Automobile magnets (Antilock brake system (ABS), ignition magnets, etc.)
  • Assembly parts, magnetic circuit design
  • Magnetization system (Magnetization power source design, Magnetization yoke design and manufacturing)

FAQ

FAQ on rare-earth cobalt magnets

Page top