Ferrite magnets have many applications, and they are used in many electronic products or devices. The specific effects depend on the product industry. Today, we will introduce the properties of ferrite magnets. The main raw materials are BaFe12O19 and SrFe12O19. They are manufactured using ceramic technology, and their texture is hard, which makes them brittle. Due to its good temperature resistance, low price, and moderate performance, ferrite magnets have become widely used permanent magnets.
Ferrite magnets are a sintered permanent magnet material composed of barium and strontium ferrite. In addition to having strong demagnetization resistance, they also have the advantage of low cost. They are hard and brittle, and require special processing technology. Because the opposite magnetic charge faces the manufacturing direction, it must be magnetized according to the direction. And because the same magnetic pole is not facing each other, it can be magnetized in any direction, although slightly stronger magnetic induction is usually found on the smaller side of the pressure surface. The maximum energy product is between 1.1 and 4.0 MGOe. Due to its low cost, it has wide applications in fields such as motors, speakers, toys, and handicrafts.
Most people are not familiar with the use of ferrite magnets in paint spraying. Normally, they are used in the production of industries such as motors, but they also have some special effects. Today, we will briefly describe their role in this aspect. After the magnetic ring is made, it needs to be painted in different colors to achieve insulation effects according to customer needs. The main reason for insulating the magnetic ring is to prevent the magnetic ring from oxidizing. If the magnetic ring is oxidized, it will affect its characteristics. Therefore, many customers require a layer of paint to be sprayed on the magnetic ring installed on the circuit board.
Why does the magnetic ring of the ferrite magnet on the circuit board need to be painted? This is because it is relatively easy to oxidize. It drives the electronic components of the entire circuit board, but it has no protection. Compared with the magnetic ring on the wire, some can be wrapped by injection molding to prevent magnetic leakage. Spraying magnetic ring paint will greatly increase the cost. If there is no cost requirement, spraying more paint can have a good insulation effect and prevent magnetic ring oxidation.
The above is the introduction of the role of ferrite magnets in paint spraying. If you have any needs, please consult us.