Instrument Transformer Core

Nanocrystalline alloy is mainly composed of Fe,Cu,Nb,Si,B and other elements(Appropriate amount of Co,Ni,Cr are added for special purposes), through specific annealing process at cooling rate of 106°C/s, called "single roll method" , then the ribbon is wound into a toroidal core. Finally.the heat treatment is applied to the core for crystallization in order to obtain excellent soft magnetic properties of nanocrystalline alloy .

Nanocrystalline alloy has higher Curie temperature compared with ferrite and can stably work even at 180°C; It has higher permeability and saturated inductance. The weight and volume of the nanocrystalline cores are reduced. Usually, the power loss of copper windings is only 50 - 70% of ferrite. Nanocrystalline cores are widely applied to variable frequency drive, EV controller, air-conditioner, LCD TV, induction cooker and other consumer electronics as well as EMC solution of industrial power supply such as welding machines.

Sunbow Group will select suitable nanocrystalline ribbon to wind cores based the performance requirements from customers. Then cores will through different heat treatment processes to meet customers' requirements. Finally cores will be packaged according to customer'srequirements.

Nanocrystalline materials have a combination advantages of silicon steel, permalloy and ferrite, the Working frequency of high frequency inverter power supply is 20 kHz ~ 50 kHz, as the heart of main power supply transformer, although the traditional ferrite core material loss at high frequency is low, but the permeability of below 100 kHz frequency is relatively low, and its saturation magnetic flux density value (Bs) 1s also low, the volume and weight of the iron core is still large. In addition, because of low Curie temperature, weak thermal stability, Bs value decreases quickly when little temperature rise, easy to saturation and working condition is not stable, ferrite is not suitable for high frequency power Nanocrystalline materials have excellent comprehensive magnetic properties, especially applicable in high­power and high-frequency inverter power core. Nanocrystalline core not only used in inverter welding machine power source, but also widely used in electrolytic plating equipment, induction heating equipment, charging equipment, communication power supply, UPS power supply, X-ray source, laser power supply, frequency conversion power supply, etc

Q: Are you trading company or manufacturer?

A: We are professional manufacturer specialized in the design,development and production of new-type amorphous,nanocrystalline,silicon steel sheets and other magnetic materials and components.

Q: What's your production capacity ?

A: The annual production capacity of amorphous&nanocrystalline ribbon is 600 tons;

The annual production capacity of power electronic core is 35 million;

C-type iron core annual production capacity of 240 tons;

The annual production capacity of reactors is 50,000;

Advantages

1.We produce amorphous and nanocrystalline ribbons as raw materials for cores, so we can adjust the formulation of raw materials according to application and performance requirements

2.more then 13 years experiences in magnetic cores manufacturing and exporting.

3.Various types magnetic materials available: Silion Steels, Nanocrystalline ribbon, Amorphous Ribbon, Mumetal

4.professional customized service,various types of cores ,give you the best solution

For additional information and immediate assistance with your requirements, designs and applications, please call 021-63306968

Or send email:sales@sunbowgroup.com

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