to 7 grades, N grade is for 80 ℃,grade M is for 100℃,grade H is for 120℃,grade SH is for 150℃,grade UH is for 180℃ and grade EH is for 200℃,you according your demand to choose the grade which you need.
Sometime, the customers have high demand of NdFeB anti-corrosion, antioxidant, we can design the
magnet,add some elements, such as: niobium, vanadium,
cobalt and other metal to replace part of the iron to catch the customer requirements of the acid and alkali resistant, antioxidant level, however, because of special material, we need MOQ for it.
Nd-Fe-B permanent magnet is manufactured in a wide range of shapes, sizes and grades according customer's demand.
NdFeB has a very high energy product and coercivity, can pick up 660 times of own weight of heavy objects.
The advantage is high cost-effective, with good mechanical properties, easy cutting; according customer's demand to manufacture in a wide range of shapes, sizes and grades.
Also have high Br,high Hcj,high (BH)max,and high stability become the important material of the world.
The shortcoming is the low of the Curie temperature and the temperature characteristics, easy to rust, oxidation,
Sintered NdFeB's surface is usually required for plating such as zinc, nickel, silver, gold, etc., can also be done phosphorus treatment or spray
epoxy resin to slow down the oxidation rate.
Nd-Fe-B
permanent magnet with its excellent performance, abundant raw material and reasonable price is to be rapid development and wide application.
Also becoming increasingly popular across a wide range of novelty products for markets.
Zn coating neodymium magnet ring for speaker