Magnetic materials mainly include permanent magnet materials, soft magnetic materials, information magnetic materials, special magnetic materials, etc., covering many high-tech fields. In the fields of rare earth permanent magnet material technology, permanent magnet ferrite technology, amorphous soft magnetic material technology, soft magnetic ferrite technology, microwave ferrite device technology, magnetic material special equipment technology and other fields, a huge industrial group has been formed. Among them, the annual market sales of permanent magnet materials alone have exceeded 10 billion US dollars.
What products can magnetic materials be used for?
First of all, in the communications industry, billions of mobile phones need a large number of ferrite microwave devices, ferrite soft magnetic devices and permanent magnet components. Tens of millions of program-controlled switches also require a large number of components such as magnetic cores. In addition, the number of cordless phones installed abroad has accounted for more than half of the total number of fixed telephones. This type of phone requires a large number of soft magnetic ferrite elements. Moreover, videophones are rapidly gaining popularity. It also requires a large number of magnetic components.
Second, in the IT industry, hard disk drives, CD-ROM drives, DVD-ROM drives, monitors, printers, multimedia audio, notebook computers, etc. also need to use a large number of NdFeB, ferrite soft magnets, permanent magnet materials and other components.
Third, in the automotive industry, the annual production of vehicles is about 55 million units. Based on the use of 41 ferrite permanent magnet motors per car, the automotive industry needs about 2.255 billion motors per year. In addition, the demand for automotive speakers is also hundreds of millions. In short, the automotive industry consumes a lot of magnetic materials every year.
Fourth, in the lighting equipment, color TV, electric bicycle, vacuum cleaner, electric toys, electric kitchen appliances and other industries, the demand for magnetic materials is also very large. For example, in the lighting industry, the output of LED lamps is large, and it needs to consume a large amount of ferrite soft magnetic materials. In short, tens of billions of electronic and electrical products need to use magnetic materials every year, and in many fields, even core magnetic devices with high technical content are required.
In short, magnetic materials can cover a large number of electronic and electrical products, and are one of the basic and backbone industrial sectors of the material industry. With the rapid rise of China's electronics and electrical industries, China has become a producer and consumer of magnetic materials. In the near future, more than half of the magnetic materials will be used to supply the market. Many high-tech magnetic materials and components will also be mainly produced and purchased by enterprises. Magnetic materials will also become one of the pillar industries in China's national economy.
