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 is a small size ring rare earth magnet, N38M grade, the outer diameter of the ring is 11mm, the hole is 2mm, which is also relatively small, the thickness is 5mm, the surface is plated with bright nickel, this type of magnet is suitable for passing through some thin shafts....
This is a very hot neodymium round magnet size, diameter 10mm, thickness 2mm, in many areas can be applied, the only difference is that different customers choose the coating, performance level and temperature resistance performance on the difference, the magnet weighs about 1.2g....
This product is a bowl-shaped magnet, because its shape is like the rice we eat. It is processed into a concave shape on the basis of a circular magnet, which belongs to the special-shaped magnet category. Our company is good at processing various complex special-shaped neodymium magnets. Welcome to all over the world. Customer service....
This is a ring magnet with an outside diameter of about 2 inches, belongs to medium size, made of rare earth neodymium material, the hole in the center is 40mm, thickness 5mm, the customer chooses N38 grade,...
Product is a Y30 (C8) grade round ferrite magnet, the N pole has a pit, the surface magnetic field strength is about 1300 Gauss, the specific size is 18mm in diameter, 8mm in thickness, magnetized in the thickness direction, and the tolerance is ±0.1mm....
You are now browsing this is a 4 inch ceramic ferrite ring magnet, by the courage magnet manufacturers physical samples photographed, magnetic ring outer diameter 110mm, hole 50mm, thickness 6mm....
You are now browsing this magnet is the diameter of 80mm series of round rare earth magnets, the thickness of 10mm, nickel-plated surface, the thickness of the magnetization....
We can provide various sizes of thin rectangular neodymium magnets, ultra-thin round magnets, ultra-thin square magnets, with high dimensional accuracy, stable performance is not easy to demagnetize, welcome to contact us for a quote....