Recently, after 8 years of technical research, BTKR Micromagnetic Technology Group has developed a rapid quenching magnetic powder with 17 magnetic energy levels. The magnetic performance is 1.3 times that of similar products in China. The hot-pressed magnetic powder technology is the first in China to break high-performance adhesives. The production and sales of magnetic powder and hot-pressed magnetic powder have always been monopolized by foreign countries. Through physical and chemical analysis and customer demonstration, the physical and chemical properties of the products have reached the first-class level of similar products in the world.
Rapid quenching magnetic powder is China's shortcoming in terms of production process and technology. In 2019, China's rapid quenching magnetic powder demand is about 1,900 tons. Due to the low magnetic properties of similar domestic products, the products mainly rely on foreign imports.
Because the sintered NdFeB material has a single shape, it is not easy to form with other parts, which results in certain restrictions in the field of high-tech applications. However, bonded NdFeB magnets and injection molded NdFeB magnets prepared with isotropic fast-quenched NdFeB bonded magnetic powder have a large degree of freedom in shape design and are easy to be made into complex shapes, thin shapes and high dimensional accuracy. The product can also be molded together with other parts to facilitate radiation orientation and multi-pole magnetization. It has the advantages of high raw material utilization, low cost, and easy automated production. It is widely used in 3C electronic products, household appliances, electric toys, etc. . Hot-pressed magnets are densified magnets formed by hot-pressed magnetic powder through hot-pressing and back-extrusion. They have good corrosion resistance and do not need or use less dysprosium and terbium. They are suitable for making a radiation ring and are widely used in automobiles, electric tools, robots and other fields.
In 2020, BTKR Micromagnetics's annual output of 5,000 tons of rapid quenching magnetic powder industrialization project will start the first phase of the project. The construction of an annual output of 2,000 tons of rapid quenching magnetic powder, 500 tons of injection molded NdFeB particles and 500 tons of injection molded magnet production lines, the project has broken through foreign countries Technological monopoly has solved the technical bottlenecks in the development of high-performance adhesive magnetic powder, heavy rare earth hot-pressed magnetic powder, injection molded particles and injection molded magnets, which is important for improving the manufacturing level of rare earth permanent magnets, improving product performance, enriching rare earth permanent magnets, extending the industrial chain, Reducing the production cost of downstream enterprises has a profound impact. After the project is completed, BTKR will build China's largest production base for the production of bonded fast-quenched magnetic powder, injection molded particles, and injection molded magnets.