The samarium magnets, together with the neodymium magnets, are part of the rare earth group and represent the new generation of magnetic materials. It is an alloy of samarium and cobalt that results in a strong permanent magnet.
We have a wide range of products from the family of samarium magnets. We manufacture samarium magnets in different sizes and shapes such as blocks, discs and rings, together with magnetic bases.
Below you can find a table that lists the qualities and most important characteristics of samarium magnets. In the table of qualities you can find variables such as: the remanence of the magnets, the coercive force, the working temperatures and the minimum and maximum resistance.
CONSULT QUALITY TABLE
|Grade||Nomenclature||Remanence||Coercive force||Intrinsic coercive||Maxium energy product||Working temp|
|Br||bHc||Fuerza Ihc||(BH) max|
|Samarium Magnets||Br max (T)||Br min (T)||HcB min (kA/m)||HcB max (kA/m)||HcJ min (kA/m)||HcJ max (kA/m)||BHmax min (kJ/m³)||BHmax max (kJ/m³)||Max. Temp. trabajo: (ºC)|
|SmCo YXG-28H||YXG-28H||SmCo 207/199||1,03||1,08||756||812||1990||-||207||220||350|
|SmCo YXG-30H||YXG-30H||SmCo 220/199||1,08||1,10||788||835||1990||-||220||240||350|
|SmCo YXG-32H||YXG-32H||SmCo 230/199||1,10||1,13||812||860||1990||-||230||255||350|
|SmCo YXG-28||YXG-28||SmCo 207/143||1,03||1,08||756||812||1433||-||207||220||300|
|SmCo YXG-30||YXG-30||SmCo 220/143||1,08||1,10||788||835||1433||-||220||240||300|
|SmCo YXG-32||YXG-32||SmCo 230/143||1,10||1,13||812||860||1433||-||230||255||300|
|SmCo YXG-26M||YXG-26M||SmCo 191/96||1,02||1,05||676||780||955||1433||191||207||300|
|SmCo YXG-28M||YXG-28M||SmCo 207/96||1,03||1,08||676||796||955||1433||207||220||300|
|SmCo YXG-30M||YXG-30M||SmCo 220/96||1,08||1,10||676||835||955||1433||220||240||300|
|SmCo YXG-32M||YXG-32M||SmCo 230/96||1,10||1,13||676||852||955||1433||230||255||300|
Type of material
From 0ºC to 350ºC
Strong magnetsStability at high temperaturesHigh coercivity
Samarium magnets are magnetic elements obtained by the combination of raw materials such as samarium and cobalt that belong to the group of rare earths, with excellent behavior against corrosion and oxidation. It also maintains a stability to the magnetic curve thanks to the high temperature of Curie. It is a material with very positive coercive values, a factor that favors the resistance to demagnetization, together with the high resistance to high temperatures (up to 350ºC) make these magnets indispensable for certain applications.
It is a material with a high hardness and should be manipulated only with tools that incorporate diamond, to cut or modify the magnet.
The working temperature can condition the use of these samarium magnets, which work up to 350ºC, without presenting problems with oxidation. It also has the peculiarity of being used in temperatures below 0ºC.
The scope of use of samarium magnets is very similar to that of Neodymium, obtaining a large number of applications. The ability to work at high temperatures and high energy values, provide different uses such as sensors inside furnaces, detectors in boilers, accessories in electric motors or simply for needs that require thermal stability. A totally suitable material and recommended for the industrial sector.
Like any magnet, you must first follow some production phases, before obtaining the magnetic material prepared for your application..
In the first instance, the raw material is heated in an oven by induction and melted to obtain the material for the alloy.
Then, the alloy in a liquid state is poured into a mold and cooled by water, to obtain solid pieces, to subsequently break the pieces and grind them to obtain tiny particles..
As an option parallel to sintering, the powder obtained is combined with a chemical substance, pressed and heated while applying a magnetic field to orient the set of particles.
To conclude, if required, a coating will be applied and magnetized by an external magnetic field, being tested and verifying the quality of the product.