钕铁硼磁铁

钕铁硼磁铁

钕铁硼 (NdFeB) 磁铁或钕磁铁是现今能量最高的材料,有不同形状、尺寸和牌号的多种产品供选择。钕铁硼磁铁应用范围广,包括高性能电机、无刷直流电机、磁力分选、磁共振成像、传感器和扬声器。

磁性能将视压实期间的对齐方向以及尺寸和形状而有所不同。从下表下载单独的规格表,或获取针对特定牌号及其磁性能的完整钕铁硼磁铁目录,包括针对矫顽力(矫顽磁性、抗退磁性)的 Br(和能量产品)平衡。

最高使用温度和腐蚀

例如,确定是否使用钕铁硼磁铁而非我们的 RECOMA® 钐钴 磁铁是一个涉及应用最高温度、典型使用温度下所需的磁力输出以及系统总成本的函数。

钕铁硼磁铁因其腐蚀特性而存在某些限制。在潮湿应用中,强烈建议采用保护涂层。已成功采用的涂层包括环氧涂层、镀镍涂层以及此类涂层的组合。Arnold 还可将聚对二甲苯涂层涂覆于钕铁硼磁铁。涂层的有效性取决于基础材料的质量。Arnold 针对基础材料的耐腐蚀性能评估了多家制造商,且只供应严格控制下所生产的经许可高度耐腐蚀材料。

晶界扩散 (GBD)

“GBD 钕”磁铁通过减少镝 (Dy) (GBDD) 和铽 (Tb) (GBDT) 的使用量,以适中的成本实现高能量密度和温度稳定性。与传统的钕磁铁制造方法相比,该工艺可提高矫顽力,同时抑制对剩磁的不利影响。该工艺适用于厚度小于 6 毫米的较小磁铁或层压材料。对于工作温度接近 180°C 的高频应用,建议考虑使用本产品。

可选钕铁硼磁铁牌号

属性:BrHcBHcJBHmax可逆温度系数温度
牌号典型 mT典型规格最小值(千安/米)最小值(奥斯特)最小值(千安/米)最小值(奥斯特)典型 kJ/m3典型磁能积Br %/°CHcJ %/°C最高温度 (°C)
N301,10511,05079610,00095512,00023530-0.12-0.7580
N331,15011,50083610,50095512,00025933-0.12-0.7580
N351,21012,10086010,80095512,00028335-0.12-0.7580
N381,26012,60086010,80095512,00030638-0.12-0.7580
N401,28512,85092311,60095512,00031840-0.12-0.7580
N421,31513,15086010,80095512,00033442-0.12-0.7580
N451,35013,50086010,80095512,00035044-0.12-0.7580
N481,40014,00083610,50095512,00037447-0.12-0.7580
N501,42514,25083610,50095512,00039049-0.12-0.7580
N521,45014,50083610,50087611,00040651-0.12-0.7560
N551,49014,9007169,00087611,00043054-0.12-0.7560
N33M1,17511,75083610,5001,11414,00026734-0.12-0.675100
N35M1,21012,10086810,9001,11414,00028335-0.12-0.675100
N38M1,26012,60089911,3001,11414,00030739-0.12-0.675100
N40M1,28512,85092311,6001,11414,00032240-0.12-0.675100
N42M1,31513,15095512,0001,11414,00033842-0.12-0.675100
N45M1,35013,50097112,2001,11414,00035444-0.12-0.675100
N48M1,39513,95099512,5001,11414,00037848-0.12-0.675100
N50M1,41514,1501,03513,0001,11414,00039049-0.12-0.675100
N52M1,44514,45099512,5001,03513,00040651-0.12-0.675100
N30H1,10511,05079610,0001,35317,00023530-0.12-0.605120
N33H1,17511,75083610,5001,35317,00026734-0.12-0.605120
N35H1,21012,10086810,9001,35317,00028335-0.12-0.605120
N38H1,26012,60089911,3001,35317,00030739-0.12-0.605120
N40H1,28512,85092311,6001,35317,00032240-0.12-0.605120
N42H1,30013,00095512,0001,35317,00033041-0.12-0.605120
N45H1,35013,50097112,2001,35317,00035444-0.12-0.605120
N48H1,39013,9001,01112,7001,35317,00037848-0.12-0.605120
N50H1,41514,1501,03513,0001,27416,00039049-0.12-0.605120
N30SH1,12511,25081110,2001,59220,00024331-0.12-0.535150
N33SH1,17511,75084410,6001,59220,00026734-0.12-0.535150
N35SH1,21012,10087611,0001,59220,00028335-0.12-0.535150
N38SH1,26012,60090711,4001,59220,00030739-0.12-0.535150
N40SH1,28512,85093911,8001,59220,00032240-0.12-0.535150
N42SH1,31013,10095512,0001,59220,00033041-0.12-0.535150
N45SH1,35013,50097912,3001,59220,00035444-0.12-0.535150
N48SH1,39013,90099512,5001,51219,00037447-0.12-0.535150
N28UH1,07510,7507649,6001,99025,00022729-0.12-0.465180
N30UH1,12511,25081210,2001,99025,00024331-0.12-0.465180
N33UH1,17511,75085210,7001,99025,00026734-0.12-0.465180
N35UH1,21012,10086010,0801,99025,00028335-0.12-0.465180
N38UH1,26012,60087611,0001,99025,00030739-0.12-0.465180
N40UH1,28512,85091511,5001,99025,00031840-0.12-0.465180
N42UH1,31013,10095512,0001,99025,00033041-0.12-0.465180
N45UH1,35013,50095512,5001,91024,00035845-0.12-0.465180
N28EH1,08510,8507809,8002,38830,00022729-0.12-0.42200
N30EH1,12511,25081210,2002,38830,00024331-0.12-0.42200
N33EH1,16511,65082010,3002,38830,00026734-0.12-0.42200
N35EH1,20012,00083610,5002,38830,00027935-0.12-0.42200
N38EH1,23512,35089911,3002,38830,00030338-0.12-0.42200
N40EH1,27012,70091511,5002,38830,00031439-0.12-0.42200
N42EH1,31013,10097112,2002,30829,00032641-0.12-0.42200
N28AH1,07510,7507809,8002,70634,00022328-0.12-0.393220
N30AH1,12011,20081210,2002,70634,00023930-0.12-0.393220
N33AH1,14011,40081210,2002,70634,00023129-0.12-0.393220
N35AH1,19511,95088311,1002,70634,00027535-0.12-0.393220
N38AH1,24012,40092311,6002,62633,00029938-0.12-0.393220
G45SH1,35013,50097912,3001,59220,00035444-0.12-0.549150
G48SH1,39013,9001,01112,7001,59220,00037447-0.12-0.549150
G50SH1,42514,25083610,5001,59220,00039049-0.12-0.549150
G52SH1,44014,4001,06713,4001,59220,00040251-0.12-0.549
150
G55SH1,46014,6001,08313,6001,51219,00041853-0.12-0.549150
GB48SH1,39013,9001,01112,7001,75122,00037447-0.12-0.549150
GB50SH1,42514,25083610,5001,75122,00039049-0.12-0.549150
GB52SH1,44014,4001,06713,4001,75122,00040251-0.12-0.549150
GB55SH1,46014,6001,08313,6001,67221,00041853-0.12-0.549150
G38UH1,26012,60087611,0001,99025,00030739-0.12-0.465180
G40UH1,28512,85091511,5001,99025,00031840-0.12-0.465180
G42UH1,31013,10095512,0001,99025,00033041-0.12-0.465180
G45UH1,35013,50097912,3001,99025,00035444-0.12-0.465180
G48UH1,39013,9001,01112,7001,99025,00037447-0.12-0.465180
G50UH1,41014,1001,05113,2001,99025,00038649-0.12-04.65180
G52UH1,43014,3001,06713,4001,99025,00039450-0.12-0.465180
GB42UH1,31013,10095512,0002,14927,00033041-0.12-0.465180
GB45UH1,35013,50097912,3002,14927,00035444-0.12-0.465180
GB48UH1,39013,9001,01112,7002,41927,00037447-0.12-0.465180
GB50UH1,41014,1001,05113,2002,44927,00038648.506-0.12-0.465180
G30EH1,12511,25081210,2002,38830,00024331-0.12-0.472200
G33EH1,16511,65082010,3002,38830,00026734-0.12-0.472200
G35EH1,20012,00083610,5002,38830,00027935-0.12-0.472200
G38EH1,26012,60087611,0002,38830,00030739-0.12-0.472200
G40EH1,28512,85091511,5002,38830,00031840-0.12-0.472200
G42EH1,31013,10095512,0002,38830,00033041-0.12-0.472200
G44EH1,31013,10097112,2002,38830,00033842.474-0.12-0.472200
G46EH1,36013,6001,01112,7002,38830,00036245.49-0.12-0.472200
G48EH1,38513,8501,02712,9002,38830,00037046.496-0.12-0.472200
GB38EH1,26012,60087611,0002,45732,000306.538.516-0.12-0472200
GB40EH1,28512,85091511,5002,54732,00031839.961-0.12-0.472200
GB44EH1,31013,10097112,2002,54732,00033842.474-0.12-0.472200
GB46EH1,36013,6001,01112,7002,54732,00036245.49-0.12-0.472200
G30AH1,12511,25081210,2002,70634,00024331-0.12-0.449220
G33AH1,16511,65082010,3002,70634,00026734-0.12-0.449220
G35AH1,20012,00083610,5002,70634,00027935-0.12-0.449220
G38AH1,26012,60087611,0002,70634,00030739-0.12-0.449220
G40AH1,28512,85091511,5002,70634,00031840-0.12-0.449220
GS38EH1,25012,50092311,6002,78635,000298.537.511-0.12-0.472200
GS40EH1,27512,75095512,0002,78635,00032240.464-0.12-0.472200
GS44EH1,32013,20097912,3002,78635,00034643.48-0.12-0.472200
GSB38EH1,23512,35091511,5002,94537,000306.538.516-0.12-0.472200
GSB40EH1,27512,75095512,0002,94537,000323.540.652-0.12-0.472200
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