DongGuan Courage Magnetoelectric Technology Co.,Ltd

Magnet FAQ

What is the difference between soft magnet and hard magnet?

About soft magnet and hard magnet, some friends may have heard about it, but it is not very clear. Today, Dongguan magnet manufacturer Karich Xiaobian gives you a detailed introduction, I believe you will understand after reading.
 
What is soft magnet? What is a hard magnet?
According to the difficulty of demagnetization after magnetization, magnetic materials can be divided into soft magnetic materials and hard magnetic materials. Soft magnetic materials are easy to remove after magnetization, of course, this material is also very easy to demagnetize. Material that is not easy to demagnetize is called hard magnetic material. Generally, the remanence of soft magnet is smaller than that of hard magnet.
 
What are the main soft magnets? In what ways are they used more?
Soft magnet mainly includes soft core and silicon steel sheet. Soft magnet is widely used as the path of magnetic line, that is, as magnetic conductive material. For example, transformer, sensor core, magnetic shielding cover, switching power supply, display, filter, yoke iron of special magnetic circuit, etc.
 
What are the main components of hard magnets? Main application areas?
Hard magnets are mainly nickel-cobalt, samarium-cobalt, neodymium-iron-boron and iron oxide. Mainly used in motor, electrical appliances, electronics, medical devices, aerospace, smart home and other fields.
 
What is the difference between a soft magnet and a hard (permanent) magnet?
1. The difference of name. Hard magnets are generally called permanent magnets, and soft magnets are called cores.
2. Remaining magnetism difference. Hard magnets have remanence, while soft magnets have very little remanence.
3. Use difference. When the soft magnet is cut off, the magnetism will disappear immediately. When the hard magnetic material is cut off, a part of the magnetism will be left behind, and the iron core will become a magnetic field, which may be changing direction continuously. In this way, the transformer will become a generator, and the extra electricity from this part will cause damage to other electrical appliances. So this is why power transformers use soft magnets instead of hard magnets.
 
The above is about the difference between soft magnet and hard magnet. Has it solved your doubts?

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