ISO9001 NdFeB Rare Earth Magnetic Powder Anti Demagnetization
MGT-14-12 8.45-8.65 kGS GOe Rare-Earth Magnet
Structural properties of rare earth magnetic powder
The crystal structure of rare earth magnetic powder has high magnetic anisotropy. This means that the crystals of the material are preferentially magnetized along some crystallographic axes, but rarely in other directions. Like other magnets, rare-earth magnets are composed of crystallite grains that are aligned in a strong magnetic field during manufacture so that their magnetic axes all point in the same direction. The resistance of the lattice to changing the direction of its magnetization makes these compounds very high coercive (anti-demagnetization), so strong demagnetization fields in the finished magnet do not reduce the magnetization of the material.
Generally used in computer hard drives, wind turbines, speakers/headphones, bicycle generators, MRI scanners, fishing reel brakes, permanent magnet motors in wireless tools, high-performance AC servo motors and other industries.
| Production List | ||||||||||||
| Series | 0806 | 10-8 | 1208 | 1309 | 1309A | 1412 | 1507 | 1509 | 1510 | 1610 | 1609D | |
| magnetic Powder VSM |
Br | 7.00~7.20 | 7.60~7.75 | 8.10~8.30 | 8.40~8.55 | 8.5-8.7 | 8.45-8.65 | 9.2-9.45 | 8.85-9.1 | 8.85-9.1 | 9.05-9.2 | 8.85-9.2 |
| kGs | ||||||||||||
| Hcj | 5.00~7.50 | 7.80~8.80 | 8.00~8.80 | 9.00~9.80 | 9-9.8 | 12-12.7 | 6.8-7.8 | 9.2-9.8 | 10-10.8 | 9.3-10.1 | 9.2-9.8 | |
| kOe | ||||||||||||
| Hcb | 4.30-5.00 | 5.20~5.60 | 5.80~6.30 | 6.20~6.80 | 6.2-6.8 | 6.7-7.2 | 5.5-6 | 6.4-6.9 | 6.4-6.9 | 6.7-7.2 | 6.7-7.2 | |
| kOe | ||||||||||||
| (BH)max | 8.80-9.30 | 11.70~12.10 | 13.00~13.80 | 14.20~14.80 | 14.2-15.1 | 14.4-15.2 | 15-16 | 15.5-16.3 | 15.5-16.3 | 16.5-17.5 | 16.5-17.5 | |
| MGOe | ||||||||||||
| magnet D10 |
Br | 5.50~5.90 | 6.00~6.15 | 6.35~6.50 | 6.60~6.80 | 6.6-6.9 | 6.7-6.8 | 7.3-7.5 | 6.9-7 | 6.9-7 | 7.05-7.15 | 7.05-7.15 |
| kGs | ||||||||||||
| Hcj | 5.00~7.50 | 7.80~8.80 | 8.00~8.80 | 9.00~9.80 | 9-9.8 | 12-12.7 | 6.8-7.8 | 9.2-9.8 | 10-10.8 | 9.3-10.1 | 9.2-9.8 | |
| kOe | ||||||||||||
| Hcb | 3.80~4.40 | 4.80~5.10 | 5.10~5.40 | 5.40~5.80 | 5.4-5.8 | 5.7-5.9 | 5.3-5.5 | 5.7-6 | 5.7-6 | 5.7-6.2 | 5.8-6.2 | |
| kOe | ||||||||||||
| (BH)max | 6.00~6.40 | 7.40~7.70 | 8.30~8.70 | 8.90~9.30 | 9-9.4 | 9.6-9.8 | 10.3-10.5 | 9.9-10.3 | 9.9-10.3 | 10.2-10.6 | 10.2-10.6 | |
| MGOe |
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Process
The molten NdFeB alloy is sprayed onto the cooling roll at a certain speed, and instantly solidifies to form a thin strip with a thickness of 0.02-0.05mm. During the rapid cooling process, the Nd2Fe14B structure is formed, and finally the thin ribbon is broken into powder
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