Rare earth magnets sintered
Our sintered rare earth magnetsNeofer® & Seco
Our materials Seco 170/120, Neofer 230/80 and Neofer 230/120 are manufactured using a sintering process. The preform materials are mixed and compressed to the required shape under pressure. Magnets with anisotropic properties are compressed in a magnetic field using specially manufactured electromagnetic tools. After being shaped, these so-called “green products” undergo a high-temperature treatment known as sintering. During this process, they increase in density and rigidity and the magnets acquire their definitive shape and strength.
The qualities of Seco and Neofer result in excellent magnetic properties.
| Description | DIN IEC 60404-8-1 codes 1 | i/a | BH(max) [kJ/m3] 6 8 | Br [mT] 6 8 | HcB [kA/m] 6 8 | HcJ [kA/m] 6 8 | Density [g/cm3] | Water absorption [%] 7 | Composition | Production |
|---|---|---|---|---|---|---|---|---|---|---|
| Seco 170/120 | RECo 170/120 | a | 170 | 920 | 640 | 800 | 8.3 | n.a. | SmCo5 oder Sm2Co17 | Sintering |
| Neofer 230/80 | REFeB 230/80 | a | 230 | 1100 | 750 | 800 | 7.4 | n.a. | NdFeB | Sintering |
| Neofer 230/120 | REFeB 230/120 | a | 230 | 1100 | 780 | 1200 | 7.4 | n.a. | NdFeB | Sintering |
Legend
| 1 |
Combined of approximated minimum values of (B * H)max and HcJ according to DIN IEC 60404-8-1. Gebildet aus angenäherten Mindestwerten von (B * H)max und HcJ nach DIN IEC 60404-8-1. Composé de valeurs minimales (B * H)max et HcJ suivant DIN IEC 60404-8-1. |
| 2 |
PA = Polyamid/ Nylon NBR = Nitrile Butadiene Rubber EPH = Expoxydharz/Resin PPS = Polyphenylensulfid |
| 3 | Prefered axis  to rolling direction.Vorzugsrichtung zur Kalandrierrichtung.Sens préférentielle d’ aimantation au sens de calandrage. |
| 4 |
Machinable by cutting. Spanabhebend bearbeitbar. Usinable par enlèvement de copeaux. |
| 5 |
The maximum operating temperature for a magnet matrials is dependent upon the specific application and magnet geometry. Do not hasitat to contact our Application Engineers for more information. Die maximale Einsatztemperatur ist abhängig von der Anwendung, von der Magnettype sowie der Magnetgeometrie. Für weitere Informationen kontaktieren Sie bitte unsere Anwendungstechniker. La température maximale d'utilisation d'un aimant dépend de son application spécifique ainsi que de sa géométrie. N'hésitez pas à prendre contact avec nos ingénieurs d'application pour plus d'informations. |
| 6 | Indicated values only with optimum dimensions: shortest edge > 8 mm, volume 1 – 200 cm³. Angegebene Werte nur bei optimalen Abmessungen: Kürzeste Kante > 8 mm, Volumen 1 – 200 cm³. Valeurs uniquement pour dimensiones optimales côté le plus court > 8 mm, volumes 1 – 200 cm³. |
| 7 | t.b.d. to be defined noch festzulegen à établir n.a. not applicable nicht angegeben / anwendbar pas applicable |
| 8 |
Minimum values. Mindestwerte. Valeurs minimales. |