MIMplus Technologies has industrially implemented and patented the production of rare earth magnets using metal injection molding.
Rare earths Magnets
CHALLENGE
Leading magnet applications require increasingly complex, smaller and more powerful permanent magnets made of rare earths.
Conventional production technologies are not able to meet the future requirements of high-end applications.
Technology
MAGNETS IN METAL INJECTION MOLDING
The production of rare earth magnets using Metal Injection Molding combines the advantages of established manufacturing processes such as press sintering or Polymer Injection Molding.
Metal Injection Molding
Advantages - Example
Freedom of shaping
Complex magnet geometries optimally adapted to the application
Miniaturization
Smallest magnets with high performance for applications with limited installation space
Application-specific fields
Field alignment in the injection molding process for variable, application -specific magnetic field geometries
Cooling structures
Cooling structures to prevent the magnets from overheating in high-end applications
High power density
High power density, comparable to press-sintered magnets
Mounting or bonding structures
Assembly or bonding aids for simplified handling during production and recycling
Metal Injection Molding
Advantages - Example
Good to know
Case Studies
Sustainability & Efficiency
View now
MIM Magnets
Key Facts
Our rare earth magnets open up new possibilities for future applications. The technology enables application-specific magnetic fields in combination with magnet geometries that were previously impossible or not economically feasible.
higher energy product compared to isotropic polymer-bonded magnets
avoidance of critical heavy rare earths through complex magnet designs
lower manufacturing costs for Halbach Arrays or comparable magnetic systems
smaller assemblies through free-form magnets compared to press sintering
Parts and assemblies
Application examples
Rare Earth Magnets
THE PROCESS
Technology
MAGNETS IN MIM
Magnets in MIM
OUR MATERIALS
NdFeB
CeFeB
SmCo
Google Earth - Bayan-Obo Mine, China
Sustainability
Recycled magnets vs. magnets made from virgin material
The production of new magnets from recycled material significantly improves the environmental balance of neodymium magnets.
-55%
Global warming
-50%
Ecotoxicity
-70%
Smog
-50%
Non-carcinogenics
Sovereignty of Germany and Europe
Europe's dependency grows as demand increases
Few countries not only control the export of rare earths or rare earth magnets, but also the technology needed to mine or process rare earths. In the European Union there are currently 200 kt* of NdFeB magnets in circulation. The recycling of these magnets at the end of their life cycle can reduce Europe's dependency.
Production of permanent magnets
Carrara et al. 2020
Rare earth mining
Adamas Intelligence Research, Rare Earth Elements, Q2 2019
Contact us
