What Are The Similarities And Differences Between Permanent Magnets And Electromagnets?

What are the similarities and differences between permanent magnets and electromagnets?

Occasionally, customers will consult our company to buy electromagnets. In their opinion, magnets and electromagnets may be similar. If you can make a magnet, you can make an electromagnet. In fact, it is not. Today I will tell you the similarities and differences between electromagnets and magnets. 

Electromagnet - An energized solenoid with an iron core inside the electromagnet. When the iron core is inserted inside the energized solenoid, the iron core is magnetized by the magnetic field of the energized solenoid. The magnetized iron core also becomes a magnet. It is the process of converting electrical energy into magnetic energy, and then from magnetic energy into kinetic energy (electrical energy→magnetic energy→kinetic energy). Therefore, voltage, current, resistance, and power are involved in the electrical energy design process. In the process of magnetic energy design, it involves magnetic induction, magnetic flux and so on.

Permanent magnet - it can be a natural product or artificially manufactured (the strongest magnet is a neodymium iron boron magnet). It has a wide hysteresis loop, high coercive force, and high remanence, and can maintain a constant magnetic field once magnetized s material. Also known as permanent magnet materials, hard magnetic materials. In the application, the permanent magnet works in the second quadrant demagnetization part of the magnetic return line after deep magnetic saturation and magnetization. Permanent magnets should have as high coercive force Hc, remanence Br and maximum magnetic energy product (BH) m as possible to ensure maximum magnetic energy storage and stable magnetic properties.

What are the similarities between electromagnet and magnet?
What both have in common is that they both have a magnetic field and are magnetic.

What are the differences between electromagnets and magnets?
1. The electromagnet needs to be electrified to be magnetic, and the magnet usually exists after being magnetized without electrification.
2. The magnetic force of the electromagnet can be changed, which is related to the number of turns of the coil and the current intensity, but the magnetic force of the magnet cannot be changed.
3. The magnetic pole (S/N) of the electromagnet can be changed, which is determined by the positive and negative poles of the electricity and the winding direction of the coil, while the magnetic pole of the permanent magnet is fixed.
4. Electromagnets are mainly used in large-scale processing plants to adsorb large-scale processed parts to designated positions, while magnets are mainly used in various household appliances, electronic products, motors, speakers, and smart homes.
5. Electromagnets have coils, but magnets have no coils.
6. The use of electromagnets is relatively troublesome. For example, a power failure protection system is equipped to ensure safety. The use of magnets is relatively simple and convenient.

Through the above introduction to the similarities and differences between electromagnets and magnets, I believe you have your own choice.