Let's analyze the strong magnets, mainly from the following three aspects

1. Analysis of the magnetic field formation principle of strong NdFeB magnets

Strong NdFeB magnets are like electricity, invisible and intangible. Only when iron is close can you feel the magnetic force. Magnets are easy to make and are quite common. Everyone knows that there is a gravitational field between substances. Similar to the magnetic field, it is a field that fills the space around the magnet. The size of the magnetic field can be expressed by the number of imaginary magnetic lines of force. The denser the magnetic lines of force, the stronger the magnetic field. On the contrary, the sparser the magnetic lines of force, the weaker the magnetic field.

When a strong magnet is in motion, charged particles will be affected by a force called Lorentz force in the magnetic field. The strength of the magnetic field is distinguished by the strength of the magnetic force of the Lorentz magnet on the charged particles in different magnetic fields. Tesla is a unit specifically used to measure magnetic flux density. The density of magnetic flux is the basic physical quantity that describes its magnetic field, and the magnetic field strength is the auxiliary quantity that describes the magnetic field.

2. Powerful magnets are called permanent magnets, so, will they really not demagnetize?

Powerful magnets are called permanent magnets. In theory, demagnetization has nothing to do with time. There are two main factors that cause magnet demagnetization, temperature and oxidation. If the temperature is too high and exceeds the Curie temperature of 300 degrees Celsius, it will lose magnetism. If it is not well protected, it will also lose magnetism due to oxidation, which is also the reason why the magnet fails during use. Powerful magnets have the characteristics of small size, light weight and strong magnetism. They are the magnets with the best performance-price ratio so far. Magnets, as the third generation of rare earth permanent magnet materials, have a high performance-price ratio. They are widely used in energy, transportation, machinery, medical care, IT, home appliances and other industries. Especially with the development of the knowledge economy represented by information technology, new uses are constantly brought to functional materials such as the rare earth permanent magnet industry, which brings a broader market prospect for the NdFeB industry.

3. Analyze from how much energy a powerful magnet can store

How much energy a powerful magnet can store? How to make NdFeB? Sintered NdFeB permanent magnets are iron-based permanent magnets made by powder metallurgy. The main processes include formula melting, powder making, molding, orientation sintering, mechanical processing, electroplating, etc. Among them, the control of oxygen content is an important indicator to measure the level of process. The magnetic performance of a magnet is a physical quantity of how much energy a magnet can store. Even after long-term use, the magnetic performance of a magnet is a physical quantity of how much energy a magnet can store. Commonly used magnetic measuring instruments are fluxmeters, Tesla meters, also known as Gauss meters, and magnetic meters. Fluxmeters are used to measure magnetic induction flux, and magnetic meters are used to measure comprehensive magnetic properties.

In short: the market prospects for strong magnets are very bright

Strong magnets are pressed from the powder produced by the hydrogen crushing of raw materials. The initial shape is called a blank. Later, different shapes can be processed according to customer requirements, such as: disc shape, circular ring shape, square shape, punched shape, trapezoidal shape, concave and convex shape, run-to shape, and some irregular shapes. The performance of strong magnets is different according to different magnetic energy product performance, and the magnetic force that can be achieved is different. Strong magnets are the main supporting products for various electronic products. Both consumer home appliances and industrial products such as computers, communication equipment, automobiles, and the defense industry cannot do without magnetic materials. The medium- and long-term market prospects for magnetic materials are very bright, and the global status of China's magnetic material products will surely be further improved.