0769-23388351
Toggle Navigation
What is the Curie temperature of a permanent ferrite magnet? What is the demagnetization temperature? Before answering this question, let's take a look at an introduction to the Curie temperature.
What is the Curie temperature?
Curie temperature refers to the temperature at which a material can change between a ferromagnet and a paramagnet. Below the Curie temperature, the substance becomes a ferromagnet, and the magnetic field associated with the material is difficult to change. When the temperature is higher than the Curie temperature, The substance becomes a paramagnet, and the magnetic field of the magnet is easily changed with the change of the surrounding magnetic field.
The picture is a multi-pole magnetized ring ferrite
What is the Curie temperature of a permanent magnet ferrite?
It is reported that the Curie temperature of ferrite is around 450°C, usually greater than or equal to 450°C, and the hardness is around 480-580.
How to demagnetize ferrite magnet?
If the ferrite is demagnetized, it is more troublesome, because the required temperature is very high, and if it needs to be demagnetized, it needs to be heated to 900 ℃ and reheated. Just above the Curie point is not clean. If you want to retreat, you can use the method of AC attenuation to demagnetize.
Curie temperature introduction of other magnets;
Maximum working temperature and Curie temperature of neodymium magnet
This product is round ferrite magnet with a diameter of 9mm and a thickness of 3mm, the performance class is Y30, magnetized in the thickness direction, without electroplating protective layer, the magnetic force is usually 700-1000gs, the working temperature is -40°C to +250°C, Suitable for sensors, suction parts, electrical appliances, Hall induction....
This is a very small size rectangular block magnet with galvanized surface, 3mm length, 1.5mm width and height, with very fine tolerance, magnetized by lengthwise direction, mainly used in precision electronics, instrumentation, please contact us if you need to buy....
Flat magnets can be flat square magnets or round magnets. Today's sample is a flat rectangular magnet, with a length of 20mm, a width of 10mm, a thickness of 1.5mm, and a zinc coating on the surface. Thickness magnetization is used for thin workpieces. The use of this relatively flat neodymium rectangular magnet requires special attention....
Looking for suppliers of radial 16 pole ring magnet and multi-level magnetic ring, welcome to contact carrich magnet manufacturers in China. We have more than 10 years of experience in the motor magnet industry. Our products have many specifications and good performance, which are highly praised by customers at home and abroad. We welcome to provide specifications, samples and batch prices....
This is a dedicated to screwdrivers, drills on top of the ring magnet, the material is rare earth neodymium, N38 grade, outer diameter 15mm, height 10mm. hole diameter 7mm, the use of very simple, is to set the magnetic ring in the screwdriver (screwdriver head) on top of the purchase of the hole is recommended to be larger 1mm....
Product name: 9.5mm diameter thickness 1.5mm neodymium intense magnetic，Type of magnet: permanent magnet，Magnet shape: Round，Magnet class: n45，Tolerance: ±0.05，Coating: conventional nickel copper nickel，Pull: About 1.6 pounds，Magnetic strength: about 2200 Gauss....
This is a C8 grade ceramic ferrite block rectangle, with white marks made according to the customer's requirements. The magnet size is 13mm long, 11mm wide and 10mm thick. If you are interested in such a magnet, you can contact us to provide you with samples, prices,...
This is a 6-pole ring magnet made of injection molded ferrite, with an outer diameter of 9.5mm, an inner hole of 1mm, a thickness of 2mm, single-sided 6-pole magnetization, 3 N poles and 3 S poles. It is mainly used for Hall encoder....