At Sintex, we develop and manufacture customized components in soft magnetic composites (SMC).
We ensure that our products are competitive, with good magnetic properties such as high relative permeability and high magnetic saturation combined with high electrical resistance.
The SMC material consists of very pure iron powder with an electrically insulating surface coating on every particle. This ensures a high electrical resistance in the material even after compaction and heat treatment and almost negates eddy current loss.
SMC is attractive in applications that require low losses, in particular at high frequencies because the benefits of SMC increase with the magnetic frequency. At frequencies that exceed approximately 200 Hz, SMC exhibits lower loss than the standard 0.5 mm thick laminated iron plates. This improves the maximum power rating, running costs and accommodates the environment.
This means that components can often be designed with reduced size, weight, and cost to make integration with the surrounding system easier by reducing the number of geometric limitations. The complicated 3D geometries and alternative flux paths permit a high fill factor for copper windings.
The isotropic magnetic properties of SMCs provide new opportunities compared to traditional laminated sheet metal, which only has good properties in two directions (and only in one direction in the transformer sheet). SMCs are made of compressed powder, so it is possible to produce workpieces with complex geometries.
Advantages of SMC: