Magnetic pump magnetic material NdFeB and ferrite distinctio

The magnetic coupling is the most important element in the fluoroplastic magnetic pump. Today we will recognize the magnet above the magnetic coupling.
Magnets are divided into weak magnets and strong magnets.
Two kinds of fluoroplastics magnetic pumps are used. The weak magnet is also called ferrite magnetic steel. The strong magnet is called NdFeB magnetic steel.
Ferrite magnetic steel is a common black magnet. It is widely used in headphones, loudspeakers, permanent magnet motors, and so on. Of course, we also have fluoroplastic magnetic pumps. The surface magnetic energy product (the value of magnetic level) of ferrite magnetic steel generally reaches 12000-16000Gs after saturation magnetization. The theoretical temperature resistance is 250 degrees. Magnetism will curve demagnetization at high temperature. When the temperature is reduced, magnetism can be completely restored. The price has a great advantage over other magnetic materials, but because of the limitation of the surface magnetic energy product, it can not be used in a wider range of industries. Therefore, the fluoroplastic magnetic pump or the stainless steel magnetic pump, made with ferrite magnetic steel, has a great advantage over the magnetic pump of the strong magnetic stainless steel in the price, but it is not competent when transporting high density medium. Moreover, due to the magnetic demagnetization characteristic of magnetic steel, the magnetic loss is more serious after more than 100 degrees, and the phenomenon of internal and external magnetic skidding is easy to occur. So the field of high temperature is also limited.
Nd-Fe-B magnetic steel is known as "king of magneto", why so, because it can reach 35000-45000Gs after saturated magnetization, and the magnetic energy product can be further improved by improving the formula of NdFeB magnetic steel. The Nd-Fe-B magnetic steel, grade 38SH, is also introduced here. It is also the most used magnetic steel in the stainless steel magnetic pump. Its maximum usage temperature is 150 degrees centigrade. With the improvement of the formula, the maximum temperature can reach 200 c. When the temperature reaches the limit, the demagnetization curve of NdFeB appears to be collapsing and will fade to 0 at a temperature point, which is very sensitive to the temperature. The price of Nd-Fe-B will be much higher than that of ferrite, but the magnetism that it can provide is unreachable by ferrite, so the future Nd-Fe-B magnetic material will have wider application space and market.
It can be seen that choosing different fluoroplastic magnetic pumps according to different working conditions is a problem you need to consider.