High quality promotional rubber magnets with 3m tape
ndfeb neodymium permanent magnet, ring shaped magnet 1) Strong magnetic force 2) High intrinsic coercive force
Feature of rubber magnets with 3m tape:
1) Material: Sintered/bonded Neodymium-Iron-Boron;
2) Grade:N33-N52,33M-48M,33H-48H,30SH-45SH,30UH-38UH and 30EH-35EH;29AH-34AH,28/30TH
3) Shape: ring,block,disc,bar and so on;
4) Size: according to customers' request;
5) Coating: Expoxy Resin Ni
6) Application: sensors,motors, rotors, wind turbines,wind generators, loudspeakers,magnetic holder, filters automobiles and so on.
The table below compares the magnetic performance of neodymium magnets with other types of permanent magnets.
Magnet | Mr (T) | Hci (kA/m) | BHmax (kJ/m3) | TC (°C) |
Nd2Fe14B (sintered) | 1.0–1.4 | 750–2000 | 200–440 | 310–400 |
Nd2Fe14B (bonded) | 0.6–0.7 | 600–1200 | 60–100 | 310–400 |
SmCo5 (sintered) | 0.8–1.1 | 600–2000 | 120–200 | 720 |
Sm(Co, Fe, Cu, Zr)7 (sintered) | 0.9–1.15 | 450–1300 | 150–240 | 800 |
Alnico (sintered) | 0.6–1.4 | 275 | 10–88 | 700–860 |
Sr-ferrite (sintered) | 0.2–0.4 | 100–300 | 10–40 | 450 |
sical and mechanical properties
Comparison of sical properties of sintered neodymium and Sm-Co magnets | ||
Property | Neodymium | Sm-Co |
Remanence (T) | 1–1.3 | 0.82–1.16 |
Coercivity (MA/m) | 0.875–1.99 | 0.493–1.59 |
Permeability | 1.05 | 1.05 |
Temperature coefficient of remanence (%/K) | –0.12 | –0.03 |
Temperature coefficient of coercivity (%/K) | –0.55..–0.65 | –0.15..–0.30 |
Curie temperature (°C) | 320 | 800 |
Density (g/cm3) | 7.3–7.5 | 8.2–8.4 |
CTE, magnetizing direction (1/K) | 5.2×10–6 | 5.2×10–6 |
CTE, normal to magnetizing direction (1/K) | –0.8×10–6 | 11×10–6 |
Flexural strength (N/mm2) | 250 | 150 |
Compressive strength (N/mm2) | 1100 | 800 |
Tensile strength (N/mm2) | 75 | 35 |
Vickers hardness (HV) | 550–650 | 500–550 |
Electrical resistivity (Ω·cm) | (110–170)×10–6 | 86×10–6 |
SICAL PROPERTIES OF SINTERED NdFeB
| Temp.Coeff.of Br | -0.09~-0.11%/? | Specific Heat | 0.12Kcal/(kg,?) | ||||
| Density | 7.4-7.6g/cm3 | Young’s Modulus | 1.6x1011N/m2 | ||||
| Vickers hardness | 600Hv | Poisson’s Ratio | 0.24 | ||||
| Tensile Strength | 8.0Kg/mm2 | Curie Temperature | 310~340? |
| Temp.Coeff.of Hc | -0.50~-0.60%/? | Thermal Conductivity | 7.7Kcal/(m.h.?) | ||||
| Electrical Resistivity | 114μΩ.cm | Rigidity | 0.64N/m2 | ||||
| Flexural Strength | 25Kg/mm | Compressibility | 9.8x10-12m2/N | ||||
| Coeff. Of Thermal Expansion | 4x10-6/? | Relative recoil permeabilityμrev | 1.05 |
Introduction of rubber magnets with 3m tape: 1,Metal injection molding, made from the stainless steel, tungsten, Iron-base alloy, tool steel, hard metal alloy. 2,Rare earth magnet, including sintered Neodymium-Iron-Boron, bonded Neodymium-Iron-Boron, sintered Samarium-Cobalt. All magnets are supplied in a wide range of shapes such as: rectangular blocks, discs, rings and segments. 3,Ferrite magnet: Hard ferrite magnet and soft ferrite magnet including the MnZn and NiZn. 4,Die-cast component, made from zinc, aluminum, magnesium alloys.
Picture of rubber magnets with 3m tape:
Other quality management SPC dada statistics., Advanced inspection equipments, Staff education, APQP FMEA , PPAP , SPC , MSA , 6 sigma , MIL-STD M105E Standard Ac=0 Sampling Method ( Zero Defect Plan ) , Traceable lot naming method .
♣ Please do not hesitate to us with the following infomation if you have intention of purchasing,thanks
1.Drawings or samples (offering both will be preferred).
2.Purchasing quantity.
3.Materials and other requirements.
Certification:
rubber magnets with 3m tape
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