We believe that extensive time period partnership can be a result of top quality, price added support, loaded encounter and personal contact for Wholesale Dealers of Free Sample N52 Block Neodymium Nickel Magnets for Handing, We are seeking forward to even larger cooperation with overseas clients depending on mutual gains. Please truly feel free to get in touch with us for more depth!
We believe that extensive time period partnership can be a result of top quality, price added support, loaded encounter and personal contact for China Neodymium Nickel Magnet and Block Neodymium Nickel Magnet, The best and original quality for spare parts is a most important factor for transportation. We may stick on supplying original and good quality parts even a little profit earned. God will bless us to do kindness business forever.
Application: Widely used in brushless motor, permanent magnet industrial motor, textile motor, automobile motor, permanent magnet direct drive motor, linear motor, air conditioning compressor motor, mechanical equipment permanent magnet motor, Marine generator, permanent magnet generator, permanent magnet propulsion motor, mining permanent magnet motor, coupling motor, chemical permanent magnet motor,drive motor for EV, pump motor, EPS motor, sensor and other area.
Product customized: magnet are all customized,length can be from 0.5mm-200mm, width from 0.5mm-150mm, thickness from 0.5mm-70mm, which can meet most customers’ requirement.
Coating: NdfeB magnet is easy to oxidize, so normally it need a coating, the coating that common used in the market like:
1. ZN plating ( a kind of metal coating,salt spray test can reach 24-48 hours, high cost performance, so it is one of the best choice for most customers).
2. NICUNI (a kind of metal coating, salt spray test can reach 48-72 hours, cost performance is higher than ZN, but still very widely used in the market the assembly condition is harsh, the product corrosion resistance requirements of the customer can choose).
3. Epoxy (non-metallic coating, non-magnetic conductivity, can reduce the motor eddy current loss, salt spray test can reach 72-96 hours, higher cost than ZN an NICUNI coating.)
4. Other coating that also used: Phosphate, Sn, Au, Ag, Parylene and so on…
Tolerance: Normally our magnet tolerance are +/-0.05mm after coating.
NdFeB Production Process
Coating Introduction
| Surface | Coating | Thickness μm | Color | SST Hours | PCT Hours | |
| Nickel | Ni | 10～20 | Bright Silver | >24～72 | >24～72 | |
| Ni+Cu+Ni | ||||||
| Black Nickel | Ni+Cu+Ni | 10～20 | Bright Black | >48～96 | >48 | |
| Cr3+Zinc | Zn C-Zn |
5～8 | Brighe Blue Shining Color |
>16～48 >36～72 |
— | |
| Sn | Ni+Cu+Ni+Sn | 10～25 | Silver | >36～72 | >48 | |
| Au | Ni+Cu+Ni+Au | 10～15 | Gold | >12 | >48 | |
| Ag | Ni+Cu+Ni+Ag | 10～ 15 | Silver | >12 | >48 | |
| Epoxy | Epoxy | 10～20 | Black/Grey | >48 | — | |
| Ni+Cu+Epoxy | 15～30 | >72～108 | — | |||
| Zn+Epoxy | 15～25 | >72～108 | — | |||
| Passivation | — | 1～3 | Dark Grey | Temporary Protection | — | |
| Phosphate | — | 1～3 | Dark Grey | Temporary Protection) | — | |
Physical Characteristics
| Item | Parameters | Reference Value | Unit |
| Auxiliary Magnetic Properties |
Reversible Temperature Coefficient Of Br | -0.08–0.12 | %/℃ |
| Reversible Temperature Coefficient Of Hcj | -0.42～-0.70 | %/℃ | |
| Specific Heat | 0.502 | KJ·(Kg ·℃)-1 | |
| Curie Temperature | 310~380 | ℃ | |
| Mechanical Physical Properties |
Density | 7.5~7.80 | g/cm3 |
| Vickers Hardness | 650 | Hv | |
| Electrical Resistance | 1.4×10-6 | μQ ·m | |
| Compressive Strength | 1050 | MPa | |
| Tensile Strength | 80 | Mpa | |
| Bending Strength | 290 | Mpa | |
| Thermal Conductivity | 6～8.95 | W/m ·K | |
| Young’s Modulus | 160 | GPa | |
| Thermal Expansion(C⊥) | -1.5 | 10-6/℃-1 | |
| Thermal Expansion(CII) | 6.5 | 10-6/℃-1 |
Picture Display
We believe that extensive time period partnership can be a result of top quality, price added support, loaded encounter and personal contact for Wholesale Dealers of Free Sample N52 Block Neodymium Nickel Magnets for Handing, We are seeking forward to even larger cooperation with overseas clients depending on mutual gains. Please truly feel free to get in touch with us for more depth!
Wholesale Dealers of China Neodymium Nickel Magnet and Block Neodymium Nickel Magnet, The best and original quality for spare parts is a most important factor for transportation. We may stick on supplying original and good quality parts even a little profit earned. God will bless us to do kindness business forever.
