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Bonded NdFeB magnet is made through "compression molding" or "injection molding" of the mixture of quick-quenched NdFeB magnetic powder and bonding agent.Due to its high accuracy in size, the bonded maget may be formed into magnetic components of relatively complicated shapes. Also,it features single-time molding and multi-pole orientation. The injection molded magnet has a high mechanical strength and may be molded together with other matching parts.
Magnetic Properties of Bonded compression Moulding NdFeB Magnets
|
Grade
|
BNP-6
|
BNP-8L
|
BNP-8
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BNP-8SR
|
BNP-8H
|
BNP-9
|
BNP-10
|
BNP-11
|
BNP-11L
|
BNP-12L
|
|
BrT(Gs)
|
0.55-0.62
|
0.60-0.64
|
0.62-0.69
|
0.62-0.66
|
0.61-0.65
|
0.65-0.70
|
0.68-0.72
|
0.70-0.74
|
0.70-0.74
|
0.74-0.80
|
|
HCBkA/m(kOe)
|
285-370(3.6-4.6)
|
360-400(4.5-5.0)
|
385-445(4.8-5.6)
|
410-465(5.2-5.8)
|
410-455(5.2-5.7)
|
400-440(5.0-5.5)
|
420-470(5.3-5.9)
|
445-480(5.6-6.0)
|
400-440(5.0-5.5)
|
420-455(5.3-5.7)
|
|
HCJkA/m(kOe)
|
600-755(7.5-9.5)
|
715-800(9-10)
|
640-800(8-10)
|
880-1120(11-14)
|
1190-1440(15-18)
|
640-800(8-10)
|
640-800(8-10)
|
680-800(8.5-10)
|
520-640(6.5-8)
|
520-600(6.5-7.5)
|
|
(BH)maxkJ/m3(MGOe)
|
44-56(5.5-7)
|
56-64(7.0-8.0)
|
64-72(8.0-9.0)
|
64-72(8.0-9.0)
|
64-72(8.0-9.0)
|
70-76(8.8-9.5)
|
76-84(9.5-10.5)
|
80-88(10.0-11.0)
|
78-84(9.8-10.5)
|
84-92(10.5-11.5)
|
|
Dg/cm3
|
5.5-6.1
|
5.6-6.1
|
5.8-6.1
|
5.8-6.1
|
5.9-6.2
|
5.8-6.1
|
5.8-6.1
|
5.8-6.1
|
5.8-6.1
|
5.8-6.1
|
|
μr
|
1.15
|
1.15
|
1.15
|
1.13
|
1.15
|
1.22
|
1.22
|
1.22
|
1.26
|
1.26
|
|
α(Br)%/℃
|
-0.13
|
-0.13
|
-0.13
|
-0.13
|
-0.07
|
-0.12
|
-0.11
|
-0.11
|
-0.11
|
-0.08
|
|
Tw℃
|
100
|
110
|
120
|
150
|
125
|
120
|
120
|
120
|
110
|
110
|
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