自中国宣布对7类中重稀土相关物项实施出口管制后，稀土金属价格在数周内达到了创纪录的高位。截至5月1日，欧洲镝价已自4月初以来上涨两倍，达到850美元/公斤；铽价从965美元/公斤上涨至3000美元/公斤，累计涨幅超210%。MultiBank大通金融认为这一现象不仅反映了市场对供应短缺的担忧，也揭示了稀土行业在全球经济中的重要地位。

With the further escalation of the China US trade war in 2025, rare earth magnets have been included in the export control list as strategic resources, posing severe supply chain challenges in key areas such as global new energy, electronic manufacturing, and defense industry. In this context, Shenzhen Hengci Electronics Co., Ltd. in China has launched a "one-stop supply chain solution" with its 20-year technical accumulation in the rare earth magnet industry, global customs clearance network, and bonded service capabilities, to open up compliant export channels for international customers and ensure stable supply of core materials. Hengci Electronics is driven by the dual wheels of "technology+service" and has become a reliable partner for global enterprises to cope with trade barriers.

With the acceleration of global energy transition, high-performance magnets, as the "heart material" of core components such as motors and generators, are facing unprecedented supply-demand contradictions. On the one hand, industries such as new energy vehicles and wind power have driven an average annual growth rate of over 15% in demand for neodymium iron boron magnets; On the other hand, the geopolitical risks and environmental pressures of rare earth resources are driving technological innovation in the industry. In this game of "efficiency" and "safety", from the research and development of rare earth magnets to breakthroughs in recycling technology, global enterprises are launching a silent revolution.

With the further escalation of the China US trade war in 2025, rare earth magnets have been included in the export control list as strategic resources, posing severe supply chain challenges in key areas such as global new energy, electronic manufacturing, and defense industry. In this context, Shenzhen Hengci Electronics Co., Ltd. in China has launched a "one-stop supply chain solution" with its 20-year technical accumulation in the rare earth magnet industry, global customs clearance network, and bonded service capabilities, to open up compliant export channels for international customers and ensure stable supply of core materials. Hengci Electronics is driven by the dual wheels of "technology+service" and has become a reliable partner for global enterprises to cope with trade barriers.

The calculation results of the calculation models found online vary greatly, which one is more accurate? Is there a corresponding relationship between surface magnetism and residual magnetism?

Sintered neodymium iron boron permanent magnets are the highest magnetic materials discovered so far, widely used in various fields such as wind power generation, new energy vehicles, maglev trains, intelligent robots, etc. Sintered neodymium iron boron magnets use powder metallurgy technology, and the raw materials contain highly active rare earth elements, which deteriorate their corrosion resistance in high-temperature and high humidity environments, greatly limiting their use in various complex working conditions. This places higher demands on the comprehensive performance of neodymium iron boron magnets in practical applications.

Sintered neodymium iron boron permanent magnet materials have excellent performance and are widely used in fields such as automobiles, home appliances, wind power, and consumer electronics. They are currently the most important type of permanent magnet material in the market. In recent years, with the booming development of the electronic information industry, wind power, and new energy vehicles, the demand for neodymium iron boron has been increasing, and the annual output of sintered neodymium iron boron has gradually increased. During the production process of sintering neodymium iron boron, a large amount of production waste is generated. At the same time, more and more electromechanical equipment containing neodymium iron boron magnets are being scrapped, resulting in a large amount of neodymium iron boron waste. The rare earth element content in neodymium iron boron materials accounts for more than 30%, and rare earth resources are non renewable. Using economically effective methods to recycle valuable substances from neodymium iron boron waste can create certain economic value, save resources, and reduce environmental pollution.

Parylene is a new type of conformal coating material developed and applied by Union Carbide Co. in the mid-1960s in the United States. It is a polymer of para xylene, which can be classified into various types based on its molecular structure, such as N, C, D, F, HT, etc.

Halbach Array (Halbach permanent magnet) is a type of magnetic structure. In 1979, American scholar Klaus Halbach discovered this special permanent magnet structure during electron acceleration experiments and gradually improved it, eventually forming the so-called "Halbach" magnet. It is an approximate ideal structure in engineering, which uses the arrangement of special magnet units to enhance the field strength in the unit direction, with the goal of generating the strongest magnetic field with the minimum amount of magnets.

The circular Halbeck array is a special shaped magnet structure designed by combining multiple magnets with the same shape but different magnetization directions to form a circular magnet, in order to enhance the uniformity and stability of the working surface or central magnetic field. The permanent magnet motor using Halbach array structure has an air gap magnetic field that is closer to a sine distribution than traditional permanent magnet motors. With the same amount of permanent magnet material used, the air gap magnetic density of Halbach permanent magnet motors is higher and the iron loss is smaller. In addition, Halbach ring arrays are widely used in permanent magnet bearings, magnetic refrigeration equipment, and magnetic resonance equipment.

Neodymium iron boron, as the third-generation rare earth permanent magnet material, has been widely used due to its excellent magnetic properties. However, neodymium iron boron magnets also have disadvantages such as low Curie temperature, high temperature coefficient of coercivity, and poor chemical stability. In addition, the huge consumption of praseodymium, neodymium, dysprosium, and terbium rare earth resources has raised concerns about environmental damage and the sustainability of rare earth resource protection. Therefore, while continuously improving the performance of neodymium iron boron permanent magnet materials, magnetic material practitioners are also actively developing other new types of permanent magnet materials.

Behind the stunning visual effects of 'Ne Zha: The Birth of the Demon Child', a silent magnetic revolution is quietly unfolding. From the particle effects of Huntianling to the quantized rendering of Nezha's out of body spirit, from the dynamic simulation of mountains and rivers to the physical modeling of Aobing Ice Dragon scales, the technical principles related to magnets are deeply integrated into every aspect of special effects production in digital form. This magnetic application that spans the physical world and digital space is redefining the technological boundaries of the animated film industry.