Black Epoxy Coating Bonded Arc Magnet for DC Planetary Gear Motor
Material:
Quick-quenched NdFeB magnetic powder with bonding agent.
Grade:
BN-6 to BN-12
Type:
Compression molding magnets & Injection molding magnets
Coating:
1. Black, grey Epoxy;
2. Prylene.
Magnetization:
Thickness Magnetization, Radiation Magnetization, Multi-pole Magnetization
Performance:
Br T: 0.55-0.80
(BH)max k J/M3 (MGOe): 44-92 (5.5-11.5)
Tw 0C: 110-150
Produts Tech:
Powder--Belending--Granulation--Compaction--Curing--Refining--Coating--Magnetization--Packing
Features:
1. High precision;
2. Excellent magnetic properties;
3. Stable working temperature;
4. Good corrosion-resistance and nice surface.
The complete combination of injecting process and high-property rare-earth powder makes it possible to form easily the anisotropic(especially radial anisotrotropic)super-thin ring or block magnets in complex shapes.The products can be formed in a unit together with other components.This process provides high precision and high acceptable rate of products.
Usages:
1. The compression molding magnets, as for simple mould and high magnetic properties, are widely used in stepping motor, CD-ROM spindle motor, general motor, vibrating motor, pick-up, HDD spindle motor, and FDD spindle motor.
2. The injection molding magnets, as for complex mould, magnetic properties around 6 to 7 MGOe, and highly consistency, are widely used in electric expansion valve, air-condition motor etc,.
Black Epoxy Coating Bonded Arc Magnet for DC Planetary Gear Motor
Black Epoxy Coating Bonded Arc Magnet for DC Planetary Gear Motor
Magnet Information |
Description | Bonded NdFeB Magnet |
Material: | Quick-quenched NdFeB magnetic powder with bonding agent. |
Shape: | Ring, Thin-wall ring, Disc, Cylinder, Segment, Irregular shapes…With special shape requirement, we have own R & D dept. to support |
Coating: | Anti-Rust Oil, Spray Rolling, Black, Grey Epoxy, Special Soak |
Magnetic Performance Sheet |
Grade | Remanence (Br) | Coercivity(BH) max kJ/m3 | Temperature |
mT | KJ/M3 | (Tw°C) |
kGs | MGOe |
|
BNP-6 | 0.55-0.62 | 44-56(5.5-7.0) | 100 |
BNP-8L | 0.60-0.64 | 56-64(7.0-8.0) | 110 |
BNP-8 | 0.62-0.69 | 64-72(8.0-9.0) | 120 |
BNP-8SR | 0.62-0.66 | 64-72(8.0-10.5) | 150 |
BNP-8H | 0.61-0.65 | 64-72(8.0-10.5) | 125 |
BNP-9 | 0.65-0.70 | 70-76(8.8-9.5) | 120 |
BNP-10 | 0.62-0.66 | 76-84(9.5-10.5) | 120 |
BNP-11 | 0.70-0.74 | 80-88(10.0-11.0) | 120 |
BNP-11L | 0.70-0.74 | 78-84(9.8-10.5) | 110 |
BN-12 | 0.74-0.80 | 84-92(10.5-11.5) | 110 |
Magnet Coating |
Coating | Thickness (Microns) | Color | Resistance |
Anti-Rust Oil | 1 | Trancparency | Temporary Protection |
Spray Rolling | 10-50 | Common Black or other color | 24 hours of salt spray test |
|
Epoxy | 25-50 | Grey, Black | 48 hours of salt spray test, 240 hours of constant temperature and humidity |
Parylene | 10-50 | Trancparency | 200 hours of Salt Spray. Superior Against Solvents, Fungi and Bacteria
|
Black Epoxy Coating Bonded Arc Magnet for DC Planetary Gear Motor
Advantages Of Compression Bonded Magnets
1: Higher magnetic strength than injection molded magnet.
2: High corrosion resistance (Epoxy coating, parylene coating) and temperature resistance, the salt spray teasting >72 hours
3: Magnetizing with complex patterns (Multi-poles on OD, ID, end face (axial), radial, helical magnetization......)
4: Higher magnetic property (Br: 3500-8000G, BHmax: 3-12MGOe, Hcj: 4000-17000 Oe
5: Complicated shape
1: Simulation calculation as to magnetic systems
2: Tool construction
3: Measuring of magnetic properties
4: Testing of the magnetic material
5: Customer support from an idea to post-marketing activities
Our Measurement Capability
—The magnetic performance (magnetic flux, magnetic field strength, pole angle, magnetic declination and the magnetic property(Br,Hcj,Hcb,BH) of magnetic material are one of primary parameter for a magnetic rotors, so the professional and exact measure will be required during magnet design and manufacturing.
Measuring Tool
1.Gaussmeter,it's for magnetic strength measurement
2.Fluxmeter,it's for magnetic flux measurement
3.Multi-magnetic poles scanner,it's for magnetic strength and pole angle measurement
4.Gaussmeter probes
5.Helmholtz coil
6.Magnetic declination tester
7.Hysteresigraph tester,it's for magnetic material grade measurement(Br,Hcj,Hcb,BH)