Magnetic plastic particle
The molding technology of magnets and the post-processing technology of magnets
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Classification:
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Magnetic plastic particles commonly known as: injection molding particles.
It is mainly made of bonded neodymium magnetic powder and PPS (polyphenylene sulfide) or PA12 (nylon 12), which can be directly used in the production of injection-molded NdFeB magnets.
Magnetic properties of PA12 series NdFeB particles
|
Product Name Grade |
PA0709 |
PA0608 |
PA0508 |
|||
|
Characteristic Property |
Test method |
Parameter Parameter |
Unit |
PA12 |
PA12 |
PA12 |
|
Magnetic Properties |
ASTM-A977 |
remanence Br |
(mT) |
540~600 |
510~560 |
490~530 |
|
(Gs) |
5400~6000 |
5100~5600 |
4900~5300 |
|||
|
Coercivity Hcb |
(Applause) |
≥ 360 |
≥ 340 |
≥ 303 |
||
|
(Oe) |
≥ 4500 |
≥ 4300 |
≥ 3800 |
|||
|
intrinsic coercivity Hcj |
(Applause) |
≥ 680 |
≥ 640 |
≥ 600 |
||
|
(Oe) |
≥ 8500 |
≥ 8000 |
≥ 7500 |
|||
|
Maximum energy product (BH)max |
(KJ/m3) |
54.4~58.4 |
46.4~50.4 |
42~46 |
||
|
(MGOe) |
6.8~7.3 |
5.8~6.3 |
5.3~5.8 |
|||
|
physical characteristics |
ASTM-D792 |
密度 Mold Density |
(g/cm3） |
5.20~5.35 |
5.10~5.30 |
5.00~5.25 |
|
ASTM-D1238 |
Mobility MFR |
(g/10min) 230˚C*5kg |
450 |
500 |
500 |
|
|
ASTM-D570 |
Moisture Moisture |
(ppm) |
35 |
35 |
35 |
|
|
ASTM-D790 |
Bending strength bending strength |
(Mpa) |
110 |
110 |
110 |
|
|
ASTM-D638 |
Tensile strength tensile strength |
(Mpa) |
60 |
60 |
60 |
|
|
ASTM-D256 |
Impact strength strength |
(KJ/m3) |
13 |
13 |
13 |
|
|
ASTM-D955 |
Shrinkage Shrinkage |
(%) |
0.4 |
0.4 |
0.4 |
|
|
ASTM-D648 |
thermal deformation temperature Deformation temp |
(˚C) |
130 |
130 |
130 |
|
|
ISO11359 |
linear expansion of coefficient of linear expansion |
(1/˚C) |
3.5E-05 |
3.5E-05 |
3.5E-05 |
|
Magnetic properties of PPS series NdFeB granular materials
|
Product Name Grade |
PPS0612 |
PPS0609 |
PPS0508 |
|||
|
Characteristic Property |
Test method |
Parameter Parameter |
Unit |
PPS |
PPS |
PPS |
|
Magnetic Properties |
ASTM-A977 |
remanence Br |
(mT) |
500-550 |
520~570 |
480-530 |
|
(Gs) |
5000-5500 |
5200~5700 |
4800-5300 |
|||
|
Coercivity Hcb |
(Applause) |
≥ 360 |
≥ 340 |
≥ 340 |
||
|
(Oe) |
≥ 4500 |
≥ 4300 |
≥ 4300 |
|||
|
intrinsic coercivity Hcj |
(Applause) |
≥ 880 |
≥ 640 |
≥ 640 |
||
|
(Oe) |
≥ 11000 |
≥ 8000 |
≥ 8000 |
|||
|
Maximum energy product (BH)max |
(KJ/m3) |
45.6-50.4 |
46.4-51.2 |
40.0-44.8 |
||
|
(MGOe) |
5.7~6.3 |
5.8~6.4 |
5.0~5.6 |
|||
|
physical characteristics |
ASTM-D792 |
密度 Mold Density |
(g/cm3） |
5.20~5.40 |
5.20~5.40 |
5.10~5.30 |
|
ASTM-D1238 |
Mobility MFR |
(g/10min) 330˚C*5kg |
76 |
75 |
85 |
|
|
ASTM-D570 |
Moisture Moisture |
(ppm) |
15 |
15 |
15 |
|
|
ASTM-D790 |
Bending strength bending strength |
(Mpa) |
85 |
85 |
100 |
|
|
ASTM-D638 |
Tensile strength tensile strength |
(Mpa) |
60 |
60 |
70 |
|
|
ASTM-D256 |
Impact strength strength |
(KJ/m3) |
8 |
8 |
11 |
|
|
ASTM-D955 |
Shrinkage Shrinkage |
(%) |
0.2 |
0.2 |
0.2 |
|
|
ASTM-D648 |
thermal deformation temperature Deformation temp |
(˚C) |
230 |
230 |
230 |
|
|
ISO11359 |
linear expansion of coefficient of linear expansion |
(1/˚C) |
1.3E-05 |
1.3E-05 |
1.7E-05 |
|
The manufacturing principle and technology of bonded Nd-Fe-B mainly include the preparation of high-performance magnetic powder, the preparation technology of pre-mixed magnetic powder and binder, the molding technology of magnets and the post-processing technology of magnets.
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