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Neodymium

Magnets

Ndfeb permanent magnet material is a representative of rare earth permanent magnet material sintered magnetic is currently the highest output, the most widely used rare earth permanent magnet material, accounting for the majority of the current dc mestic market, widely used in new energy vehicles, wind power generation, motor, consumer electronics, energy-saving appliances, robots, medical equipment and high-end audio and other industries and fields

Magnetic Properties of Sintered Neodymium Magnet

Question Introduction to Performance Parameter Table 2011-12-12 12:15:59

Sintered neodymium iron boron permanent magnets can be divided into seven series according to the different intrinsic coercivity HcJ: N (low coercivity), M (medium coercivity), H (high coercivity), SH (super high coercivity), UH (ultra high coercivity), EH (extremely high coercivity), and AH (abnormally high coercivity).

Question Magnetic Properties Chart of Sintered Neodymium Magnet 2011-12-12 12:15:59

(Grade)	Remanence(Br）		(Hcb)		(Hcj)		(BH(max))		Temp. Coeff.		(Max Working Temperature)
(Grade)	kGs	T	kOe	kA/m	kOe	kA/m	MGOe	KJ/m3	%/K（Br） %/K（Hcj）		L/D≥0.5（℃）
N30	10.8-11.3	1.08-1.13	≥10.0	≥798	≥10	≥796	28-31	223-247	-0.12	-0.70	≤80
N33	11.3-11.7	1.13-1.17	≥10.5	≥836	≥11	≥876	31-34	247-271	-0.12	-0.70	≤80
N35	11.7-12.2	1.17-1.22	≥10.9	≥868	≥12	≥955	33-36	263-287	-0.12	-0.70	≤80
N38	12.2-12.5	1.22-1.25	≥11.3	≥899	≥12	≥955	36-39	287-310	-0.12	-0.70	≤80
N40	12.5-12.8	1.25-1.28	≥11.4	≥907	≥12	≥955	38-41	302-326	-0.12	-0.70	≤80
N42	12.8-13.2	1.28-1.32	≥11.5	≥915	≥12	≥955	40-43	318-342	-0.12	-0.70	≤80
N45	13.2-13.7	1.32-1.37	≥11.6	≥923	≥12	≥955	43-46	342-366	-0.12	-0.70	≤80
N48	13.7-14.0	1.37-1.40	≥11.6	≥923	≥12	≥955	46-49	366-390	-0.12	-0.70	≤80
N50	14.0-14.4	1.40-1.44	≥10.0	≥796	≥11	≥876	48-51	382-406	-0.12	-0.70	≤80
N52	14.3-14.6	1.43-1.46	≥10.0	≥796	≥11	≥876	50-53	398-422	-0.12	-0.70	≤80
N54	14.4-14.9	1.44-1.49	≥10.0	≥796	≥11	≥876	52-55	414-438	-0.12	-0.70	≤80
N35M	11.7-12.2	1.17-1.22	≥10.9	≥868	≥14	≥1114	33-36	263-287	-0.12	-0.70	≤100
N38M	12.2-12.5	1.22-1.25	≥11.3	≥899	≥14	≥1114	36-39	287-310	-0.12	-0.70	≤100
N40M	12.5-12.8	1.25-1.28	≥11.6	≥923	≥14	≥1114	38-41	302-326	-0.12	-0.70	≤100
N42M	12.8-13.2	1.28-1.32	≥12.0	≥955	≥14	≥1114	40-43	318-342	-0.12	-0.70	≤100
N45M	13.2-13.7	1.32-1.37	≥12.5	≥995	≥14	≥1114	43-46	342-366	-0.12	-0.70	≤100
N48M	13.7-14.0	1.37-1.40	≥12.9	≥1027	≥14	≥1114	46-49	366-390	-0.12	-0.70	≤100
N50M	14.0-14.4	1.40-1.44	≥13.0	≥1033	≥14	≥1114	48-51	382-406	-0.12	-0.70	≤100
N52M	14.3-14.6	1.43-1.46	≥13.1	≥1043	≥14	≥1114	50-53	398-422	-0.12	-0.70	≤100
N54M	14.4-14.9	1.44-1.49	≥13.2	≥1051	≥14	≥1114	52-55	414-438	-0.12	-0.70	≤100
N35H	11.7-12.2	1.17-1.22	≥10.9	≥868	≥17	≥1353	33-36	263-287	-0.12	-0.70	≤120
N38H	12.2-12.5	1.22-1.25	≥11.3	≥899	≥17	≥1353	36-39	287-310	-0.12	-0.70	≤120
N40H	12.5-12.8	1.25-1.28	≥11.6	≥923	≥17	≥1353	38-41	302-326	-0.12	-0.70	≤120
N42H	12.8-13.2	1.28-1.32	≥12.0	≥955	≥17	≥1353	40-43	318-342	-0.12	-0.70	≤120
N45H	13.2-13.7	1.32-1.37	≥12.1	≥963	≥17	≥1353	43-46	342-366	-0.12	-0.70	≤120
N48H	13.7-14.0	1.37-1.40	≥12.5	≥995	≥17	≥1353	46-49	366-390	-0.12	-0.70	≤120
N50H	14.0-14.4	1.40-1.44	≥12.7	≥1011	≥17	≥1353	48-51	382-406	-0.12	-0.70	≤120
N52H	14.3-14.6	1.43-1.46	≥12.9	≥1027	≥17	≥1353	50-53	398-422	-0.12	-0.70	≤120
N35SH	11.7-12.2	1.17-1.22	≥11.0	≥876	≥20	≥1592	33-36	263-287	-0.11	-0.65	≤150
N38SH	12.2-12.5	1.22-1.25	≥11.4	≥907	≥20	≥1592	36-39	287-310	-0.11	-0.65	≤150
N40SH	12.5-12.8	1.25-1.28	≥11.8	≥939	≥20	≥1592	38-41	302-326	-0.11	-0.65	≤150
N42SH	12.8-13.2	1.28-1.32	≥12.4	≥987	≥20	≥1592	40-43	318-342	-0.11	-0.65	≤150
N45SH	13.2-13.7	1.32-1.37	≥12.6	≥1003	≥20	≥1592	43-46	342-366	-0.11	-0.65	≤150
N48SH	13.7-14.0	1.37-1.40	≥12.7	≥1011	≥20	≥1592	46-49	366-390	-0.11	-0.65	≤150
N50SH	14.0-14.4	1.40-1.44	≥12.6	≥1003	≥20	≥1592	48-51	382-406	-0.11	-0.65	≤150
N28UH	10.4-10.8	1.04-1.08	≥9.6	≥764	≥25	≥1990	26-29	207-231	-0.11	-0.60	≤180
N30UH	10.8-11.3	1.08-1.13	≥10.2	≥812	≥25	≥1990	28-31	223-247	-0.11	-0.60	≤180
N33UH	11.3-11.7	1.13-1.17	≥10.7	≥852	≥25	≥1990	31-34	247-271	-0.11	-0.60	≤180
N35UH	11.7-12.2	1.17-1.22	≥10.8	≥860	≥25	≥1990	33-36	263-287	-0.11	-0.60	≤180
N38UH	12.2-12.5	1.22-1.25	≥11.0	≥876	≥25	≥1990	36-39	287-310	-0.11	-0.60	≤180
N40UH	12.5-12.8	1.25-1.28	≥11.3	≥899	≥25	≥1990	38-41	302-326	-0.11	-0.60	≤180
N42UH	12.8-13.2	1.28-1.32	≥11.3	≥899	≥25	≥1990	40-43	318-342	-0.11	-0.60	≤180
N45UH	13.2-13.6	1.32-1.36	≥11.4	≥908	≥25	≥1990	43-46	342-366	-0.11	-0.60	≤180
N48UH	13.7-14.0	1.37-1.40	≥11.4	≥908	≥25	≥1990	46-49	366-390	-0.11	-0.60	≤180
N28EH	10.4-10.8	1.04-1.08	≥9.8	≥780	≥30	≥2388	26-29	207-231	-0.11	-0.55	≤200
N30EH	10.8-11.3	1.08-1.13	≥10.2	≥812	≥30	≥2388	28-31	223-247	-0.11	-0.55	≤200
N33EH	11.3-11.7	1.13-1.17	≥10.5	≥836	≥30	≥2388	31-34	247-271	-0.11	-0.55	≤200
N35EH	11.7-12.2	1.17-1.22	≥11.0	≥876	≥30	≥2388	33-36	263-287	-0.11	-0.55	≤200
N38EH	12.2-12.5	1.22-1.25	≥11.3	≥899	≥30	≥2388	36-39	287-310	-0.11	-0.55	≤200
N40EH	12.5-12.8	1.25-1.28	≥11.3	≥899	≥30	≥2388	38-41	302-326	-0.11	-0.55	≤200
N42EH	12.8-13.2	1.28-1.32	≥11.3	≥899	≥30	≥2388	40-43	318-342	-0.11	-0.55	≤200
N28AH	10.4-10.8	1.04-1.08	≥9.9	≥787	≥33	≥2624	26-29	207-231	-0.10	-0.50	≤230
N30AH	10.8-11.3	1.08-1.13	≥10.3	≥819	≥33	≥2624	28-31	223-247	-0.10	-0.50	≤230
N33AH	11.3-11.7	1.13-1.17	≥10.6	≥843	≥33	≥2624	31-34	247-271	-0.10	-0.50	≤230
N35AH	11.7-12.2	1.17-1.22	≥11.0	≥876	≥33	≥2624	33-36	263-287	-0.10	-0.50	≤230
N38AH	12.2-12.5	1.22-1.25	≥11.3	≥899	≥33	≥2624	36-39	287-310	-0.10	-0.50	≤230
N40AH	12.5-12.8	1.25-1.28	≥11.6	≥923	≥33	≥2624	38-41	302-326	-0.10	-0.50	≤230

Surface Treatment of Sintered Neodymium Magnet

Question Introduction of Surface Treatment 2011-12-12 12:15:59

Surface protective treatment is the ineluctable procedure for the sintered Neodymium magnets.Nd-rich phase exhibit quite strong oxidation tendency andwill orm a primary bottery system with moin phase under humid conditon.Fialy; Nd-ich phose is corroded and main phase particle peeled from the bodygradually.Ssurface protective treatment of sitered Neodymium magnets is can be divided into wet and dry process The commonly-used wet process incudes electroplating,electrlessplating.electrophoresis,spray coating.and dip coting. Dy procss includes physical vopor deposition(PVD) rocess andchemical vapor deposition (CVD) process.

Question Surface Treatment Classifications of Sintered Neodymium Magnet 2011-12-12 12:15:59