In-depth report on the magnetic components industry

1 Magnetic materials: widely used, new energy gives rise to new demand

At present, the development momentum of new energy is strong, and the core components of photovoltaic inverters and new energy vehicles OBC, DCDC and other parts must be realized through a large number of magnetic components, magnetic components, which have existed for nearly 200 years, have been revitalized. Magnetic components include inductors and transformers, and windings and magnetic cores are the upstream, which together constitute the main body of magnetic components, in which the windings are generally copper enameled wires, and the magnetic cores are generally made of soft magnetic materials such as magnetic powder cores/ferrites/amorphous nanocrystals. This report will focus on magnetic components and their upstream soft magnetic materials, as well as downstream new energy applications.

Magnetic materials are composed of ferromagnetic materials or ferromagnetic materials such as the elements Fe, Cobalt Co, nickel Ni and their alloys, and are an ancient and very versatile functional material. Magnetic materials are divided into soft magnetic materials, permanent magnet materials, and functional magnetic materials according to their use. Functional magnetic materials mainly include magnetostrictive materials, magnetic recording materials, magnetoresistance materials, magnetic bubble materials, magneto-optical materials, gyromagnetic materials and magnetic thin film materials, etc., and the basic magnetic properties of magnetic materials are magnetization curves, hysteresis loops and magnetic losses.

Magnetic materials are widely used in industry and life, as basic materials used in motors, transformer cores, electromagnets, generators, microphones, speakers and magnetic separators and other fields, these products are further used in power conversion, signal transmission, power adaptation, magnetic field shielding, analog and digital data storage and other functions from electrical to mechanical. According to Precedence Research data, the global magnetic materials market size was $32.66 billion in 2021 and is expected to grow to $57.9 billion in 2030, with a CAGR of 6.57% during the period. According to the data of the Magnetic Materials and Devices Branch of the China Electronic Components Industry Association, in 2021, China's permanent magnet material output will be 768,000 tons, accounting for 68.05% of the domestic magnetic material output, and the output of soft magnetic materials will be 361,000 tons, accounting for 31.99%.

The measurement of the magnetic properties of magnetic materials is as follows: Stability: The main parameters are the residual magnetization and the maximum magnetic energy product. Higher values indicate stronger magnetic field strength and the better the magnet can retain its magnetic properties. Resistance to demagnetization: The main parameter is intrinsic coercivity. The higher the value, the stronger the resistance to demagnetization, and the higher the efficiency value. Temperature resistance: the main parameters are intrinsic coercivity, maximum operating temperature, and Curie temperature. The higher the value, the better the temperature resistance and the more stable the magnetic performance.

1.1 Permanent magnet materials: various motor applications generate demand

Permanent magnet materials usually have a high coercivity, and their coercivity Hc is generally not less than 10

The main indicators to measure the performance of permanent magnet material products are: coercivity (Hc): divided into magnetic coercivity (Hcb) and intrinsic coercivity (Hcj). The larger the Hc value, the stronger the anti-demagnetization ability of the motor, the larger the overload multiple, and the stronger the adaptability to the dynamic working environment of strong demagnetization. Maximum magnetic energy