How are magnets magnetized?

This is one of the most common methods of magnetization. In the electromagnetic magnetization method, a magnet is placed in a solenoid coil, which is a hollow cylinder in which magnets of different sizes and shapes can be placed, and the coil is energized to produce a strong magnetic field, which magnetizes the magnetic material to maintain magnetism. To avoid handling and assembling magnets under magnetized conditions, it is sometimes possible to assemble the magnetic material and then magnetize it. This approach is referred to as post-magnetization of the whole. In contact magnetization, a strong magnet (usually a permanent magnet) that has been magnetized is placed in direct contact with the magnet to be magnetized. Through contact, the magnetic material is rearranged in a strong magnetic field and acquires magnetic properties.

In vibrational magnetization, a magnet is placed in a specific device that vibrates at a specific frequency and amplitude. This vibration causes the magnetic material of the magnet to align in vibration, resulting in magnetization. Regardless of the method used, the magnetization process of the magnet requires strict control of the strength, direction and time of the magnetic field to ensure consistency and quality of the magnetization effect. The magnetized magnet should be tested and inspected to ensure that it meets the specified magnetic performance requirements. Among the different magnetizing methods, electromagnetic magnetization usually provides the greatest magnetic properties.

Mainly includes axial magnetization, radial magnetization, thickness direction magnetization, axial multi-stage magnetization, inner circle radial magnetization, radiation magnetization, and so on. Unipolar magnetization uses the existing magnetizing machine and magnetizing fixture to magnetize the magnetic material, and the magnetized product shows N and S poles (i.e., there is only one pole on one side). Multi-pole magnetization is the use of customized magnetizing fixtures for magnetization, after magnetization, there are more than two pairs of N, and S poles on the same magnet (one face with multiple poles).

Halbacharray is a Magnet Manufacturer assembly structure that is an engineered magnetic field that approximates an ideal structure. The permanent magnets are arranged in different magnetization directions in such a way that the magnetic field on one side of the array is significantly enhanced while the field on the other side is significantly weakened. The goal is to produce the strongest magnetic field in the working area with the least amount of magnetic field.