Introduction of Permanent Magnet Material and Soft Magnet Material of Magnet
Many people are not very clear about the permanent magnet material and soft magnet material of magnet. Today, Courage Xiaobian, a magnet manufacturer, will introduce them to you, including their role in permanent magnet motors.
What is permanent magnet material?
Permanent magnet material is the earliest type of magnetic material found and used, for example, the ancient compass of our country. Permanent magnetic materials, relative to soft magnetic materials, also known as hard magnetic materials. Hardness in magnetic properties means that magnetic materials can retain their strong magnetism for a long time after being magnetized by an applied magnetic field, which is characterized by high coercivity. Coercive force is the magnetic field strength of magnetic material after magnetization and then after demagnetization to reduce the residual magnetism to zero. Soft magnetic materials are easy to be magnetized and demagnetized by adding magnetic field, that is, magnetic materials with low coercivity. Demagnetization refers to the magnetic field in which the magnetic material is magnetized and the magnetic field opposite to the direction of the magnetization field is added to reduce its magnetism.
With the continuous development of science and technology, permanent magnet materials not only have many kinds, but also have a wide range of applications. Commonly used permanent magnet materials are ferrite permanent magnet materials, rare earth permanent magnet materials, metal permanent magnet materials and so on. Rufeboron is a kind of permanent magnet material.
Magnetic properties of permanent magnets:
1. High stability, i.e. high stability to external disturbance magnetic field and degree, vibration and other environmental factors.
2. High coercivity.
3. High residual flux density and high residual magnetization.
4. High maximum magnetic energy product.
There are many kinds of soft magnetic materials and their applications are very wide. The commonly used soft magnetic materials are mainly iron-silicon soft magnetic materials, iron-nickel soft magnetic alloys, ferrite soft magnetic materials, etc. Their magnetic properties include high stability, high saturation flux density, high saturation magnetization, high permeability, low magnetic loss and electrical loss, low coercivity, etc.
In permanent magnet motors, they mainly play the role of a magnetic field. When the stator is electrified, a rotating magnetic field is generated. The permanent magnet or soft magnetic material on the rotor also generates a magnetic field, which follows the magnetic field generated by the stator.
Note: Our company only provides customized processing of permanent magnets. If you have need quotations, please contact courage.