Electromagnets and permanent magnets are widely recognized in China. Many steel plate hoisting companies may have used or touched them more or less. Electromagnetic permanent magnets are their upgraded products, which have the advantages of both electromagnets and permanent magnets. Many people don't know about it. In this article, we will talk with you about the two hot issues. What is an electro-permanent magnet and what is the difference between an electro-permanent magnet and an electromagnet?
1. What is an electro-permanent magnet?
The electric permanent magnet is actually an electronically controlled permanent magnet. Its interior is made of two rare earth permanent magnet materials, NdFeB and AlNiCo. The magnetic pole direction of the AlNiCo inside the electropermanent magnet is controlled and converted through instantaneous current to achieve the purpose of absorbing The effect of putting objects, the power-on time is generally 0.01-2S.
As a manufacturer of electro-permanent magnet supporting products for 12 years, Hanwei Magneto has advanced technology. At present, electro-permanent magnets are mainly used in lifting electro-permanent magnet spreaders, robot magnetic grippers, electro-permanent magnet chucks in machining centers and electro-permanent magnets. The four major sectors of magnetic formwork cover metallurgy, machinery, transportation, automobile industry, intelligent manufacturing, shipbuilding, aerospace, injection molding and other fields.
2. What is the difference between an electro-permanent magnet and an electromagnet?
Both the electromagnet and the electro-permanent magnet need to be energized, but the electromagnet will be demagnetized when the power is turned off, while the electro-permanent magnet will not be demagnetized when the power is turned off, and it can maintain the magnetic force. Why is this? Because the electromagnet generates magnetic force through electricity, there is no magnetism without electricity, and the electric permanent magnet uses electricity to control the magnetic pole direction of the internal permanent magnet to achieve the effect of magnetization and demagnetization.
There are also differences between electromagnets and electro-permanent magnets in application. Generally, large-scale enterprises or companies with high safety requirements are more inclined to choose electro-permanent magnets, because electro-permanent magnets are expensive, safe, and the magnetic force can be adjusted. With fine control, there is basically no need for maintenance in the later stage; while unloading trucks in batches, bundling rebar, scrap steel, etc., generally tend to choose electromagnets, because the cost of electromagnets will be lower, but its magnetic force cannot be adjusted, and the electricity and maintenance costs in the later stage are relatively high. high.