Just like other business, there some knowledge have to know. Here we would like to share with you some useful knowledge about neodymium magnet. That can help you know neodymium magnet in 3 minutes.
Basics of neodymium magnets:
NdFeB is the most widely used magnetic material due to the highest specific energy density and low cost of production. This rare earth material is composed of the elements neodymium, iron, and boron. Magnets of NdFeB are colloquially called neodymium magnets. They are very versatile because of their properties. NdFeB magnets are permanent magnets with a given direction of magnetization (anisotropic) and behave extremely stable against demagnetizing fields.
Purpose of Neodymium Magnets:
- Magnet adhesive systems
- Generators and electric motors
- Hall sensors (as encoder magnets)
- filter systems
Limitations of Neodymium Magnets:
- The operating temperature of magnets made of neodymium is, depending on the grade, a maximum of 200 ° C, in most cases even only 80 ° C.
- Due to the high iron content of the neodymium magnets, these tend to corrosion.
- High sensitivity to impact or pressure load
Coatings of Neodymium Magnets:
The neodymium magnets are delivered with the following two coatings:
- NiCuNi nickel coating (shiny metallic)
- Zn Coating
- Black/Grey epoxy coating
Usage notes of neodymium magnets:
Please read the warnings before using magnets. Neodymium magnets can be attached by gluing or snapping. If the neodymium magnet is attached to a magnetic object, you should make a previous test with a magnet between the magnet and the object, for example, fabric or polystyrene.
Neodymium magnets in different shapes and sizes
Neodymium magnets can be found in the form of discs, cuboids, cubes, rods , rings or balls and in different sizes. So you get the Neodymium magnets in cubic form, for example, in sizes between 1mm and 20mm.But lots of manufacturers do not like to produce the magnet smaller than 1mm, because that is hard to produce. Even the China magnet manufacturer. If you ask them, you would find that the 1mm magnet’s price is higher than the 2mm. And most of the time , they will increase the MOQ.