Fe-Based Amorphous Ribbon

Product Detail

Amorphous & Nano-crystalline Ribbons
We produce iron-based amorphous ribbons for distribution transformer cores.
Amorphous ribbons for distribution transformers are superior to silicon steel in energy conservation. The no-load loss of SH15 amorphous distribution transformers is 60%-80% lower than SH11 silicon steel transformers.
We also produce iron-based amorphous, cobalt based amorphous and nanocrystalline ribbons for a
variety of electromagnetic components in electric and electronic fields.




Application Field:
•Medium frequency transformer cores in heating equipment
•Toroidal gapless cores as SMPS output inductors, differential input inductors
•Toroidal gapless cores as noise preventive chokes in car audio, car navigation system
•Toroidal gap cores for PFC use in air conditioner, plasma TV set
•High frequency rectangular cut cores as output inductors and transformers in SMPS, UPS, etc.
•Toroidal gapless cores as pulse transformer for driving IGBTs, MOSFETs and GTOs
•Amorphous stators and rotors in high power density variable speed electric motors and generators





Characteristics:
•Highest saturate induction among amorphous alloys—Reduce component volume
•Low coercivity---Promote component efficiency
•Low core loss---Reduce device temperature rise
•Variable permeability---Satisfy the various application requirements depending on different core heat treatment
•Excellent stability---With highest serving temperature of 130°C




Physical Properties

Saturate induction	1.56T	Hardness Hv	960kg/mm2
Curie temperature	410°C	Density	7.18g/cm3
Crystallization temperature	535°C	Resistivity	130µO-cm
Saturate magnetostriction	27x10-6




Magnetic properties

Product type	Transverse field annealed	No field annealed	Longitudinal field annealed
Maximum permeability	>2x104	>20x104	>25x104
Saturate induction	1.5 T	1.5 T	1.5 T
Remanance	<0.5 T	1.0 T	1.2 T
Coercivity	<4A/m	<2.4 A/m	<4A/m
Core loss (50Hz, 1.4T)	<0.2W/kg	<0.13W/kg	<0.3W/kg
Core loss (400Hz, 1.2T)	<1.8W/kg	<1.25W/kg	<2W/kg
Core loss (8kHz, 1.0T)	<80W/kg	<60W/kg	<100W/kg
(-55°C—125 °C )	<15%	<15%	<15%
DP/P (120°C´200Hours)	<15%	<15%	<15%




Comparison of Fe-based amorphous ribbons and silicon steel

Material	Fe-based amorphous	Silicon steel
Saturate induction (T)	1.56	2.03
Coercivity (A/m)	<4	<30
Maximum permeability	>25x104	4x104
Core loss (W/kg)	50Hz, 1.3T,P<0.2	50Hz, 1.7T,P=1.2
Exciting power (VA/kg)	50Hz, 1.3T,P<0.5	50Hz, 1.7T,P<0.83
Stacking factor	0.84	0.95
Magnetostriction (´10-6)	27	-
Resistivity (Wm-cm)	130	45
Density (g/cm3)	7.18	7.65
Crystallization temperature (?)	535	-
Curie temperature (?)	415	746
Strength (Mpa)	1500	343
Hardness (HV)	900	181
Thickness (µm)	30	300




Specifications

Part No.	Width, mm	Thickness, mm	Processing status
RF1-0050	5±0.05	29±3	Slit ribbon
RF1-0065	6.5±0.05	29±3	Slit ribbon
RF1-0080	8±0.05	29±3	Slit ribbon
RF1-0100	10±0.05	29±3	Slit ribbon
RF1-0150	15±0.05	29±3	Slit ribbon
RF1-0200	20±0.1	29±3	Slit ribbon
RF1-0250	25±0.1	29±3	Slit ribbon
RF1-0300	30±0.1	29±3	Slit ribbon
RF1-0400	40±0.1	29±3	Slit ribbon
RF1-0500	50±0.1	29±3	Slit ribbon
RF1-0640	64±1	29±3	Cast ribbon
RF1-1000	100±1	29±3	Cast ribbon

Ribbons with other specifications can be provided according to customer's demand




Typical characteristic curves



Fig.1 Hysteresis loop
Fig.2 High frequency core loss
Fig.3 Core loss and Exciting power at 50Hz