Disc Neodymium Magnet Round Black Epoxy Coating Rare Earth NdFeB Magnet
Sintered NdFeB permanent magnet material is an energy storage device with high energy density, which can efficiently achieve the mutual conversion of energy and information. It is a fundamental functional material urgently needed by strategic emerging industries such as wind power generation, new energy vehicles, energy-saving motors, and hybrid electric vehicles.
There are many levels of NdFeB magnets
Grade | Max Operating Temperature | Grade | Max Operating Temperature |
N35-N48 | 80℃ (176℉) | 30SH-45SH | 150℃ (302℉) |
N50-N52 | 60℃ (140℉) | 30UH-45UH | 180℃ (356℉) |
30M-50M | 100℃ (212℉) | 28EH-38EH | 200℃ (392℉) |
30H-48H | 120℃ (248℉) | 28AH-35AH | 230℃ (446℉) |
Epoxy resin is coated with nickel on neodymium iron boron magnets and then coated with a layer of resin paint. Epoxy resin electrophoresis is divided into metal electroplated coating (nickel/copper) as a base, epoxy resin electrophoresis layer, and direct coating of epoxy resin on the magnet substrate. Magnets with epoxy resin treatment on the surface are mainly used in strict fields such as elevators, compressors, and motors.
Characteristics of Magnets Coated with Epoxy Resin
1. High temperature resistance of 380 ℃. (Non magnetic temperature resistance)
2. Solvent resistant.
3. Multi color. What we usually see is black epoxy, but there are actually other colors, but they are not common, such as gray, red, and other colors.
4. No hanging points.
5. Salt spray resistant for 72 hours.
6. The coating thickness is 15-25um.