Source:china Amourphous core materials.
01.Against the backdrop of the global acceleration towards the carbon neutrality goal and the upgrading of power electronic devices towards high frequency and high efficiency, amorphous iron cores, with their outstanding performance advantages, are becoming a key force driving energy transformation and industrial upgrading. Recently, a joint research team composed of Beijing Cree Power Distribution Automation Co., Ltd. and the Institute of Physics, Chinese Academy of Sciences, has made a major breakthrough in the field of amorphous core technology. The new generation of amorphous core products they developed have reduced iron loss to an industry-leading level, attracting extensive attention from multiple fields such as energy and electronics.
The core advantage of amorphous iron cores lies in their unique amorphous atomic structure. Through the ultra-high-speed quenching process, the alloy liquid forms an irregularly arranged atomic structure during instantaneous solidification, avoiding the energy loss caused by the grain boundaries in traditional crystalline materials. Compared with traditional silicon steel sheet cores, the iron loss of amorphous cores can be reduced by more than 70%, and the energy efficiency improvement is particularly significant under high-frequency operating conditions of 10kHz - 20kHz. This feature not only significantly reduces energy waste during power transmission and conversion, but also effectively lowers the heat generation of equipment during operation, extends its service life, and significantly enhances system stability.
At the application level, amorphous iron cores have widely permeated multiple key fields. In the field of new energy, amorphous iron cores are widely used in photovoltaic inverters and wind power converters, helping to enhance power generation efficiency, reduce equipment volume and weight, and promote the lightweight and integrated development of new energy equipment. In the power system, the application of amorphous core transformers can reduce no-load losses by about 80%, saving billions of kilowatt-hours of electricity for the country every year, and providing strong support for energy conservation and cost reduction in the power grid. In addition, in scenarios such as electric vehicle charging piles, 5G base station power supplies, and industrial control equipment, amorphous iron cores, with their high-frequency and low-loss characteristics, have become the core components for optimizing power supply performance.
02.This technological breakthrough stems from the long-term in-depth research and development of amorphous materials by the joint research team. The R&D team successfully controlled the thickness of the amorphous strip to 0.015mm by optimizing the alloy composition ratio, innovatively introducing [specific elements or processes], and improving the rapid quenching and precision annealing processes. At the same time, they significantly enhanced the magnetic permeability and saturation magnetic induction intensity of the core. After testing by authoritative institutions, the iron loss of this product under the working conditions of 10kHz and 1.0T is only [X] W/kg, reaching the international advanced level.
Industry experts point out that the advancement of amorphous core technology will accelerate the green transformation of the energy industry. A relevant official from the China Electrical Equipment Industry Association stated: "The large-scale application of amorphous iron cores not only aligns with the national 'dual carbon' strategic demands but also provides a new path for the technological upgrading of power electronic equipment." It is expected that in the next five years, the market size of amorphous iron cores will grow at an average annual rate of 20%, and it will enter a period of explosive growth in fields such as new energy and smart grids.
03.With the continuous maturation of technology and the gradual reduction of costs, amorphous iron cores are rapidly penetrating from high-end application fields to the civilian market. The person in charge of the joint research team disclosed that the next step will be to focus on optimizing the large-scale production process, establish an industrial alliance with upstream and downstream enterprises, and jointly promote the innovative application of amorphous iron cores in distributed energy, smart home and other fields, so that green and efficient electromagnetic technology can benefit more industries and users.
This breakthrough in amorphous core technology is not only an important achievement in the field of materials science, but also marks a new stage in China's independent innovation capabilities in high-end electromagnetic materials, contributing a "Chinese solution" to the global energy transition and industrial upgrading.
E-mail:alvin.zhu@evergrowrs.com