Realize mass production of 150 ultra-low magnetic permeability nanocrystalline magnetic rings

As new energy vehicles develop towards high performance and high integration, the performance requirements for magnetic materials are getting higher and higher, and some materials are difficult to meet the requirements of terminal vehicle applications. For example, in the low-voltage side power inductor of the DC-DC module, low-permeability nickel-zinc ferrite is generally used, but as the power of the DC-DC module continues to increase, the anti-saturation characteristics of nickel-zinc ferrite are no longer sufficient. Therefore, the magnetic material industry urgently needs to develop magnetic materials with high impedance and high anti-saturation capabilities in high-frequency environments, as well as stability in high and low temperatures and under stress. Under the 800V high-voltage platform, EMC technology faces the following challenges: 1. Silicon carbide devices are prone to high-frequency common-mode noise due to their high switching speed and high voltage characteristics. 2. System coupling interference problems increase the difficulty of compatibility design. 3. The reuse of charging functions increases the challenges of EMC filtering. 4. The iteration cycle of filtering design is long and the cost is high. In order to meet the above challenges, when applying 800V high-voltage platform technology, car companies need to redesign the EMC filtering systems of the core...

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News report: Amorphous magnetic core development

Nanocrystalline materials for new energy vehicle products 1. What are the current applications of nanocrystalline materials in new energy vehicles? What are their advantages over other soft magnetic materials? At present, the main markets for magnetic components of nanocrystalline soft magnetic materials for vehicle applications include electric vehicle on-board chargers, on-board inverters, motor bearing protection, and electric vehicle charging stations. There are many application methods, including inductors, chokes, CTs, and magnetic rings. I summarize the advantages of nanocrystalline magnetic rings into several keywords: compact, efficient, and stable. Compact refers to the high saturation magnetic density of nanocrystalline materials, which are smaller in size than other soft magnetic materials with the same performance. Efficient refers to the high magnetic permeability, low loss, and better electromagnetic interference suppression effect of nanocrystalline materials; stable refers to the high Curie temperature, low temperature coefficient, and stronger reliability of nanocrystalline materials. 2. What technical requirements are put forward for nanocrystalline materials under the trend of 800V electric drive system? In the current soft magnetic material system, it is generally believed that the higher the magnetic permeability of the material, the worse its anti-saturation characteristics. However, there are some scenarios in vehicle applications, such as three-phase...

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Anyang: A small magnetic core is the “leader” in the industry

The automatic winding machine operates at high speed, rolling the thin alloy strip into a ring. After transverse magnetization, vacuum annealing and other processes, the ring "changes" into an amorphous or nanocrystalline magnetic core...

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The “Anyang Dark Horse” emerged from the amorphous materials industry

From two factories of more than 60 square meters when it was founded to a production base of more than 5,000 square meters now, from an insignificant handicraft workshop to making great strides into the ranks of provincial "specialized, special and new" enterprises and national high-tech enterprises, Henan Savart Electronics is very Crystal Technology Co., Ltd.

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