Soft Magnetic Powders

Soft Magnetic Powders

Our company is one of the earliest company engaged in the development, research and production of soft magnetic powder in China.By gas atomization and water atomization process,many kinds of products can be provided,such as FeNi,FeNiMo, FeSi and other soft magnetic powders, FeSiCr, amorphous and nanocrystalline powders for molding choke. FeCoNi powder for clutch.

Features
Features are as below:

• The powders which used for magnetic powder core have high saturation magnetic flux density, low core loss and high DC bias performance.
• we can provide both bare powders and insulating powders for molding choke with high permeability, good insulation resistance, excellent saturation characteristics.
• Magnetic powders used in clutch features long service life, high wear resistance, high temperature resistance, good stability and excellent magnetic properties.

Soft Magnetic Powders

Typical Applications
Typical applications are as below:

• Metal Powder Core
• Molding Choke
• Magnetic Clutch

Technical Specifications

1）Powders for Metal Powder Core

Powder Properties
Products	Chemical Composition				Process	Oxygen Content （PPM）	Apparent Density （g/cm³）	Sieve Size (mesh)	Laser Size D50（um）
	Fe	Ni	Mo	Si
Hi-Flux	bal	48~52			Gas atomization	<500	>4.8	-120/-200	30-50
					Water atomization	<200	>3.9	-80/-200/-325	20-45
MPP	bal	80~83	1.8~2.5		Gas atomization	<300	>5.0	-80+400/-120	40-80
					Water atomization	<1800	>4.2	-80/-200/-325	20-50
FeSi	bal			3~7	Gas atomization	<300	>4.4	-120	40-65
					Water atomization	<1500	33.6	-120	30-55

Metal Powder Core Properties
Products	① Coer Loss（mW/cm³）	② DC Bias	Curie Temprature	Saturation (Bs)	Permeability (μ)	u VS.T (-55-125℃）	③ u VS.F MHz
Hi-Flux(water）	350	76%	500℃	1.5T	60-160	1.6	1.2
Hi-Flux(gas）	300	85%	500℃	1.5T	60-160	1.6	1.2
Mpp(water）	260	57%	400℃	0.75T	60-300	0.6	2.7
Mpp(gas）	220	65%	400℃	0.75T	60-300	0.6	2.7
FeSi(water）	800	65%	700℃	1.6T	26-90	8	6.5
FeSi(gas）	600	75%	700℃	1.6T	26-90	8	6.5
Testing Conditions：①50kHz,100mT ②100 Oe,60u ③↓90%u

2）Powders for Molding Choke

Products	Chemical Composition					Oxygen Content （PPM）	Tap Density (g/cm³)	Laser Particle Size
Products	Fe	Si	Cr	B	C	Oxygen Content （PPM）	Tap Density (g/cm³)	D10	D50	D90
FeSiCr-A	bal.	3-4	4-5			2400	4.02	3.5	10.1	24.2
FeSiCr-C	bal.	4.5-5.5	5-6			2200	3..98	3.6	10.1	24.2
FeSiCr-D	bal.	6-7	4.5-5.5			2200	3.95	3.5	9.9	24.2
FeSiCr-E	bal.	7.5-8.5	3.5-4.5			2200	4.1	3.5	10.2	25.6
Amorphous-01	bal.	5-6		2.5-3.5		1400	4.34	4.2	10.2	25.1
Amorphous-02	bal.	6-7	2-3	2-3	0.5-1.0	1000	4.58	10.2	24.8	50.2
Nanoerystalline-01	bal.					1400	4.41	3.8	9.9	23.8
All the above grades can be supplied with bare powder and insulation coating powder

Molding Choke Properties
Products	Permeability	Voltage Resistance （kV）	Anti Rust property	Saturation （H20%）/Oe	① Coer Loss（mW/cm³）
FeSiCr-A	38.2	0.7	Good	130	4000
FeSiCr-C	36.2	0.9	Good	125	4200
FeSiCr-D	34.2	1	Best	120	4000
FeSiCr-E	34.2	1	Better	120	3800
Amorphous-01	18.5	1	Good	130	3200
Amorphous-02	17.5	0.9	Better	150	2800
Nanoerystalline-01	19.5	0.9	Better	140	900
Testing Conditions：①50kHz，100mT

3）Powders for Magnetic Clutch

Powder Properties
Products	Chemical Composition					Oxygen Content （PPM)	Apparent Density （g/cm³）	Flowability (s/50g)	Sieve Size（mesh）
	Ni	Co	Si	C	Fe
CF-1	8.5-9.5	22.5-23.5	0.2-0.5	<0.03	bal.	<200	>4.4	<16	-50+80， -80+150， -150