Imanes de neodimio sinterizados son los imanes más potentes disponibles comercialmente en el mundo, con productos energéticos que oscilan entre 33 y 52 MGOe. Ofrecen una solución ideal para aplicaciones que requieren imanes fuertes y altamente coercitivos disponibles en grandes cantidades a un costo relativamente bajo. Los imanes de neodimio sinterizado se utilizan ampliamente en productos de consumo como teléfonos móviles, parlantes, sujetadores y juguetes, así como en aplicaciones industriales como detectores de metales, filtros de aceite, alternadores, medidores de flujo, y abrazaderas de soldadura. También son esenciales en máquinas de resonancia magnética, vehículos híbridos y eléctricos y turbinas eólicas debido a su alta potencia y tamaño compacto. Los imanes de neodimio sinterizado vienen en varias formas (bloques, anillos, arcos, discos, esferas y más), siendo el revestimiento de Ni-Cu-Ni el recubrimiento más común, aunque también hay otros acabados disponibles.
∇ Los imanes permanentes más potentes |
∇ Alto rendimiento a bajo costo |
∇ Excelente resistencia a la desmagnetización |
∇ Opciones para materiales estándar y de alta temperatura |
∇ Productos energéticos superiores a 50 MGOe |
Propiedades magnéticas de Imanes de neodimio sinterizados
Calificación | Br | HcB | hcj | (BH) máx. | Recomendar temperatura máxima de trabajo | ||||||||
kg | T | koe | ka/m | koe | ka/m | MGOe | kJ/m³ | L/D≥0,7 | |||||
máx. | mín. | máx. | mín. | mín. | mín. | mín. | mín. | máx. | mín. | máx. | mín. | °C | |
N30 | 11.2 | 10.8 | 1.12 | 1.08 | ≥10 | ≥796 | ≥12 | ≥955 | 31 | 28 | 247 | 223 | ≤80 |
N33 | 11.7 | 11.3 | 1.17 | 1.13 | ≥10,5 | ≥836 | ≥12 | ≥955 | 34 | 31 | 271 | 247 | ≤80 |
N35 | 12.1 | 11.7 | 1.21 | 1.17 | ≥10,9 | ≥868 | ≥12 | ≥955 | 36 | 33 | 287 | 263 | ≤80 |
N38 | 12.6 | 12.2 | 1.26 | 1.22 | ≥11,3 | ≥899 | ≥12 | ≥955 | 39 | 36 | 311 | 287 | ≤80 |
N40 | 12.9 | 12.6 | 1.29 | 1.26 | ≥11,6 | ≥923 | ≥12 | ≥955 | 41 | 38 | 327 | 302 | ≤80 |
N42 | 13.2 | 12.9 | 1.32 | 1.29 | ≥12 | ≥955 | ≥12 | ≥955 | 43 | 40 | 342 | 318 | ≤80 |
N45 | 13.7 | 13.3 | 1.37 | 1.33 | ≥12,5 | ≥955 | ≥12 | ≥955 | 46 | 43 | 366 | 342 | ≤80 |
N48 | 14.0 | 13.7 | 1,40 | 1.37 | ≥12,9 | ≥1027 | ≥12 | ≥955 | 49 | 46 | 390 | 366 | ≤80 |
N50 | 14.3 | 14.0 | 1.43 | 1,40 | ≥13,1 | ≥1043 | ≥12 | ≥955 | 51 | 48 | 406 | 382 | ≤80 |
N52 | 14.5 | 14.3 | 1,45 | 1.43 | ≥13,3 | ≥1138 | ≥11 | ≥876 | 53 | 50 | 422 | 398 | ≤70 |
N54 | 14.6 | 14.4 | 1.46 | 1.44 | ≥13,6 | ≥1150 | ≥11 | ≥876 | 55 | 52 | 438 | 414 | ≤70 |
N56 | 14.8 | 14.6 | 1,48 | 1.46 | ≥13,7 | ≥1160 | ≥11 | ≥876 | 57 | 54 | 454 | 430 | ≤70 |
30M | 11.2 | 10.8 | 1.12 | 1.08 | ≥10,9 | ≥868 | ≥14 | ≥1114 | 31 | 28 | 247 | 223 | ≤100 |
33M | 11.7 | 11.3 | 1.17 | 1.13 | ≥10,5 | ≥836 | ≥14 | ≥1114 | 34 | 31 | 271 | 247 | ≤100 |
35M | 12.1 | 11.7 | 1.21 | 1.17 | ≥10,9 | ≥868 | ≥14 | ≥1114 | 36 | 33 | 287 | 263 | ≤100 |
38M | 12.6 | 12.2 | 1.26 | 1.22 | ≥11,3 | ≥899 | ≥14 | ≥1114 | 39 | 36 | 311 | 287 | ≤100 |
40M | 12.9 | 12.6 | 1.29 | 1.26 | ≥11,6 | ≥923 | ≥14 | ≥1114 | 41 | 38 | 327 | 302 | ≤100 |
42M | 13.2 | 12.9 | 1.32 | 1.29 | ≥12,0 | ≥955 | ≥14 | ≥1114 | 43 | 40 | 342 | 318 | ≤100 |
45M | 13.7 | 13.3 | 1.37 | 1.33 | ≥12,5 | ≥995 | ≥14 | ≥1114 | 46 | 43 | 366 | 342 | ≤100 |
48M | 14.0 | 13.7 | 1,40 | 1.37 | ≥12,9 | ≥1027 | ≥14 | ≥1114 | 49 | 46 | 390 | 366 | ≤100 |
50M | 14.3 | 14.0 | 1.43 | 1,40 | ≥13,1 | ≥1043 | ≥14 | ≥1114 | 51 | 48 | 406 | 382 | ≤100 |
52M | 14.5 | 14.3 | 1,45 | 1.43 | ≥13,3 | ≥1138 | ≥14 | ≥1114 | 53 | 50 | 422 | 398 | ≤100 |
54M | 14.6 | 14.4 | 1.46 | 1.44 | ≥13,6 | ≥1150 | ≥14 | ≥1114 | 55 | 52 | 438 | 414 | ≤100 |
30H | 11.2 | 10.8 | 1.12 | 1.08 | ≥10 | ≥796 | ≥17 | ≥1353 | 31 | 28 | 247 | 223 | ≤120 |
33H | 11.7 | 11.3 | 1.17 | 1.13 | ≥10,5 | ≥836 | ≥17 | ≥1353 | 34 | 31 | 271 | 247 | ≤120 |
35H | 12.1 | 11.7 | 1.21 | 1.17 | ≥10,9 | ≥868 | ≥17 | ≥1353 | 36 | 33 | 287 | 263 | ≤120 |
38H | 12.6 | 12.2 | 1.26 | 1.22 | ≥11,3 | ≥899 | ≥17 | ≥1353 | 39 | 36 | 311 | 287 | ≤120 |
40H | 12.9 | 12.6 | 1.29 | 1.26 | ≥11,6 | ≥923 | ≥17 | ≥1353 | 41 | 38 | 327 | 302 | ≤120 |
42H | 13.2 | 12.9 | 1.32 | 1.29 | ≥12,0 | ≥955 | ≥17 | ≥1353 | 43 | 40 | 342 | 318 | ≤120 |
45H | 13.7 | 13.3 | 1.37 | 1.33 | ≥12,5 | ≥995 | ≥17 | ≥1353 | 46 | 43 | 366 | 342 | ≤120 |
48H | 14.0 | 13.7 | 1,40 | 1.37 | ≥12,9 | ≥1027 | ≥17 | ≥1353 | 49 | 46 | 390 | 366 | ≤120 |
50H | 14.3 | 14.0 | 1.43 | 1,40 | ≥13,0 | ≥1034 | ≥17 | ≥1350 | 51 | 48 | 406 | 382 | ≤120 |
52H | 14.5 | 14.3 | 1,45 | 1.43 | ≥13,3 | ≥1138 | ≥17 | ≥1350 | 53 | 50 | 422 | 398 | ≤120 |
30SH | 11.2 | 10.8 | 1.12 | 1.08 | ≥10,1 | ≥804 | ≥20 | ≥1592 | 31 | 28 | 247 | 223 | ≤150 |
33SH | 11.7 | 11.3 | 1.17 | 1.13 | ≥10,6 | ≥844 | ≥20 | ≥1592 | 34 | 31 | 271 | 247 | ≤150 |
35SH | 12.1 | 11.7 | 1.21 | 1.17 | ≥11,0 | ≥876 | ≥20 | ≥1592 | 36 | 33 | 287 | 263 | ≤150 |
38SH | 12.6 | 12.2 | 1.26 | 1.22 | ≥11,4 | ≥907 | ≥20 | ≥1592 | 39 | 36 | 311 | 287 | ≤150 |
40SH | 12.9 | 12.6 | 1.29 | 1.26 | ≥11,6 | ≥939 | ≥20 | ≥1592 | 41 | 38 | 326 | 302 | ≤150 |
42SH | 13.2 | 12.9 | 1.32 | 1.29 | ≥12,4 | ≥987 | ≥20 | ≥1592 | 43 | 40 | 342 | 318 | ≤150 |
45SH | 13.7 | 13.2 | 1.37 | 1.32 | ≥12,6 | ≥1003 | ≥20 | ≥1592 | 46 | 42 | 366 | 334 | ≤150 |
48SH | 14.0 | 13.7 | 1,40 | 1.37 | ≥12,9 | ≥1027 | ≥20 | ≥1592 | 49 | 46 | 390 | 366 | ≤150 |
50SH | 14.3 | 14.0 | 1.43 | 1,40 | ≥13,0 | ≥1034 | ≥20 | ≥1592 | 51 | 48 | 406 | 382 | ≤150 |
52SH | 14.5 | 14.3 | 1,45 | 1.43 | ≥13,3 | ≥1138 | ≥20 | ≥1592 | 53 | 50 | 422 | 398 | ≤150 |
28uh | 10.8 | 10.4 | 1.08 | 1.04 | ≥9,6 | ≥764 | ≥25 | ≥1989 | 29 | 26 | 231 | 207 | ≤180 |
30UH | 11.2 | 10.8 | 1.12 | 1.08 | ≥10,1 | ≥804 | ≥25 | ≥1989 | 31 | 28 | 247 | 223 | ≤180 |
33UH | 11.7 | 11.3 | 1.17 | 1.13 | ≥10,7 | ≥852 | ≥25 | ≥1989 | 34 | 31 | 271 | 247 | ≤180 |
35UH | 12.1 | 11.7 | 1.21 | 1.17 | ≥10,8 | ≥860 | ≥25 | ≥1989 | 36 | 33 | 287 | 263 | ≤180 |
38uh | 12.6 | 12.2 | 1.26 | 1.22 | ≥11,3 | ≥899 | ≥25 | ≥1989 | 39 | 36 | 311 | 287 | ≤180 |
40UH | 12.9 | 12.6 | 1.29 | 1.26 | ≥11,3 | ≥899 | ≥25 | ≥1989 | 41 | 38 | 326 | 302 | ≤180 |
42uh | 13.2 | 12.9 | 1.32 | 1.29 | ≥11,6 | ≥923 | ≥25 | ≥1989 | 43 | 40 | 342 | 318 | ≤180 |
45uh | 13.7 | 13.3 | 1.37 | 1.33 | ≥12,5 | ≥995 | ≥25 | ≥1989 | 46 | 43 | 366 | 342 | ≤180 |
28EH | 10.8 | 10.3 | 1.08 | 1.03 | ≥9,8 | ≥780 | ≥30 | ≥2388 | 29 | 26 | 231 | 207 | ≤200 |
30EH | 11.2 | 10.8 | 1.12 | 1.08 | ≥10,1 | ≥804 | ≥30 | ≥2388 | 31 | 28 | 247 | 223 | ≤200 |
33EH | 11.7 | 11.3 | 1.17 | 1.13 | ≥10,3 | ≥820 | ≥30 | ≥2388 | 34 | 31 | 271 | 247 | ≤200 |
35EH | 12.1 | 11.7 | 1.21 | 1.17 | ≥10,5 | ≥836 | ≥30 | ≥2388 | 36 | 33 | 287 | 263 | ≤200 |
38EH | 12.6 | 12.2 | 1.26 | 1.22 | ≥11,3 | ≥899 | ≥30 | ≥2388 | 39 | 36 | 311 | 287 | ≤200 |
40EH | 12.9 | 12.5 | 1.29 | 1.25 | ≥11,3 | ≥899 | ≥30 | ≥2388 | 41 | 38 | 326 | 302 | ≤200 |
42EH | 13.3 | 12.8 | 1.33 | 1.28 | ≥11,6 | ≥923 | ≥30 | ≥2388 | 43 | 40 | 342 | 318 | ≤200 |
45EH | 13.7 | 13.2 | 1.37 | 1.32 | ≥12,5 | ≥995 | ≥30 | ≥2388 | 46 | 42 | 366 | 334 | ≤200 |
28AH | 10.8 | 10.3 | 1.08 | 1.03 | ≥9,6 | ≥764 | ≥35 | ≥2785 | 29 | 26 | 231 | 207 | ≤230 |
30AH | 11.2 | 10.8 | 1.12 | 1.08 | ≥9,6 | ≥764 | ≥35 | ≥2785 | 31 | 28 | 247 | 223 | ≤230 |
33AH | 11.7 | 11.3 | 1.17 | 1.13 | ≥9,6 | ≥764 | ≥35 | ≥2785 | 34 | 31 | 271 | 247 | ≤230 |
35AH | 12.1 | 11.7 | 1.21 | 1.17 | ≥9,6 | ≥764 | ≥35 | ≥2785 | 36 | 33 | 287 | 263 | ≤230 |
38AH | 12.6 | 12.2 | 1.26 | 1.22 | ≥9,6 | ≥764 | ≥35 | ≥2785 | 39 | 35 | 311 | 278 | ≤230 |
Solución de revestimiento de superficies
Nota: La resistencia a la corrosión varía según la forma del producto.
Material de revestimiento | Espesor | Comportamiento | Resistencia a la corrosión | Observación | ||||
PCT | spray de sal | Humedad y temperatura | Ácido / Alcalino | Aceite | ||||
Zn (Zn blanco) | ≥ 5 micras | Blanco | ----- | ♦♦ | ♦♦♦ | ----- | ♦ | |
Zn (ZN chapado en color) | ≥ 5 micras | Iridiscencia | ----- | ♦♦♦ | ♦♦♦♦ | ----- | ♦ | |
Ni+Cu+Ni | ≥ 15 micras | Astilla | ♦♦♦ | ♦♦♦♦ | ♦♦♦♦♦ | ♦♦♦ | ♦♦♦ | |
Ni+Cu+Ni+Sn | ≥ 15 micras | Astilla | ♦♦♦♦ | ♦♦♦♦ | ♦♦♦♦♦ | ----- | ----- | Excelente desempeño en soldadura |
Ni químico | ≥ 5 micras | Astilla | ♦♦♦♦ | ♦♦♦♦♦ | ♦♦♦♦♦ | ♦♦♦ | ♦♦♦ | |
Epoxy | ≥ 12 micras | Negro o gris | ♦♦♦ | ♦♦♦♦♦ | ♦♦♦♦♦ | ♦♦♦♦♦ | ♦♦♦♦ | Poca resistencia al desgaste |
Pasivado | ≤ 2 micras | Negro o gris | ----- | ----- | ♦♦♦ | ----- | ♦♦♦ | |
Al | ≥ 3 micras | Gris plateado | ♦♦♦♦ | ♦♦♦ | ♦♦♦♦ | ----- | ♦♦♦ | Alto rendimiento en encuadernación con cola |
Al+epoxi | ≥ 15 micras | Negro o gris | ♦♦♦♦♦ | ♦♦♦♦♦ | ♦♦♦♦♦ | ♦♦♦♦♦ | ♦♦♦♦♦ | Poca resistencia al desgaste |
Zn+Al | ≥ 10 micras | Astilla o gris astilla | ♦♦♦♦♦ | ♦♦♦♦♦ | ♦♦♦♦♦ | ----- | ♦♦♦♦♦ | |
Everluber | ≥ 5 micras | Oro | ♦♦♦♦ | ♦♦♦♦ | ♦♦♦♦♦ | ♦♦♦♦♦ | ♦♦♦♦ | |
teflón | ≥ 5 micras | Negro | ♦♦ | ♦♦♦ | ♦♦♦♦♦ | ♦♦♦♦♦ | ♦♦♦ | Buena resistencia al desgaste |
Curva de desmagnetización
Flujo de proceso