Email Us CALL US NOW +86-010-53345989
Huatai Xinding(Beijing)Metal Materials Co., Ltd.
Magnets Include Electromagnets and Permanent Magnets
Magnetic solution
provider & manufacturing expert,
25 years of professional experience
Innovative solutions for sustainable developments toward a better world
Striving for excellence and continuous improvements to support your success

Magnets Include Electromagnets and Permanent Magnets

The principle of the electromagnet is relatively simple. It is the magnetic field generated by the energized spiral tube to form attraction. This is more used in our industry. For example, solenoid valves and relays are non-magnetic under normal conditions, or there is no attraction. Relying on electric energy to carry out transformation. The principle followed is the principle of conservation of energy, that is, how attractive you are, and you have to consume almost the same amount of electric energy. If you want to make the coil more attractive, you need to wind a few more turns of copper wire and current. And the voltage should also be increased.

But permanent magnets are different. Let's take a look at the composition of permanent magnets and how to make them. Permanent magnets are also called neodymium iron sheds. As the name suggests, they contain neodymium, iron, and boron. Boron is a chemical element cycle. The fourth element in the table is hydrogen, lithium, beryllium, and boron. How do these elements come together? This uses a process called powder metallurgy.

To put it simply, powder metallurgy is to grind various elements into powder separately, mix them according to a certain proportion, and stir them evenly, then put the mixed powder into a mold for extrusion molding, and then sinter after it is formed. Furnace sintering is similar to what we do for bricks. Because the sintering process has to go through a high-temperature furnace, it will inevitably produce more serious deformations. After that, several working surfaces must be water-milled. The magnet at this time, I can't call it a complete magnet. At this time, its name is soft magnet. For example, the ceramic tile in the motor is in this state. Anyone who has dismantled the motor should know the magnetic tile in the motor. You can't suck things. If you have a lot of things, just use this, and the public welfare will end here. But this is not the case with neodymium iron sheds. At this time, electricity is used to magnetize. Strictly speaking, it is a process of magnetization. It is short-circuited from one side of the magnet to the other through a certain strong instantaneous current. The sintered soft magnetic inner band and certain conductive material, after being magnetized by a strong current, becomes a permanent magnet.


Related News
  • Application of Magnetic Materials in Industry

    Application of Magnetic Materials in Industry

    December 30, 2020In fact, magnetic materials can be seen everywhere in our life, such as Fe3O4, that is, rust. It is a natural magnet can be seen everywhere in our life. In our industrial production, magnetic material...view
  • Industrial Magnet Introduction

    Industrial Magnet Introduction

    June 10, 2019When we buy industrial magnets, we will encounter various selection problems. This article will introduce the related introduction of industrial magnets.Industrial magnets are high-strength magnets, a...view
  • Waste Magnet Hydrogen Treatment (HPMS)

    Waste Magnet Hydrogen Treatment (HPMS)

    March 5, 2021Nick Mann, HyProMag's general manager of operations, said: "RaRE is an exciting project and an excellent opportunity." HyProMag's recycling technology allows us to produce neodymium iron boron magnets...view
  • How much Influence does the Magnet Have on the Mobile Phone?

    How much Influence does the Magnet Have on the Mobile Phone?

    December 29, 2020Many people will be disturbed by some established thoughts, or consider that some principles are totally right. As the saying goes: If there are too many people talking, people can treat rumors as fac...view