Which magnets have high temperature resistance characteristics? What is the highest temperature they can withstand? If you want to find the answers to the above questions, you have come to the right place. In this article, we will introduce a list of magnets that can withstand high temperatures.
Magnets that can withstand high temperatures-AlNiCo magnets
It is an alloy composed of aluminum, nickel, cobalt, iron and other trace metals. It has good machinability and can operate at temperatures up to 600 degrees Celsius.
Magnets that can withstand high temperatures-neodymium magnets
High temperature resistant magnet
It is the most easily available magnet on the market and is called Magnet King. It has extremely high magnetic properties. Its BHmax is more than 10 times higher than ferrite, and its operating temperature can reach up to 200 degrees Celsius. The neodymium iron used in brushless motors Boron magnets are usually selected from 120 degrees to 150 degrees. Neodymium magnets are divided into M (80-100℃), H (100-120℃), SH (120-150℃), UH (150-180℃), EH (180-200℃) according to their temperature. The magnetic strength of the NdFeB magnet is closely related to the change of the ambient temperature. Within the working temperature range, every time the temperature rises by 1°C, the corresponding magnetic force will be weakened. After cooling, most of the magnetic force can be restored to the original level, which is reversible. If the temperature reaches the Curie temperature, and a part of the magnet moves vigorously and demagnetizes, this is irreversible.
Magnet that can withstand high temperature-SmCo magnet
According to their composition, they are divided into SmCo5 and Sm2Co17. Due to the high price of the material, their development is limited. As a rare earth permanent magnet, Samarium Cobalt not only has a high magnetic energy product (14-28MGOe), but also has reliable coercivity and good temperature characteristics. Compared with neodymium iron boron magnets, sa cobalt magnets are more suitable for working in high temperature environments, and their working temperature can reach 250-350 degrees Celsius.
Magnets that can withstand high temperatures-ferrite magnets
Its main raw materials include BaFe12O19 and SrFe12O19, which are the most widely used permanent magnets due to their excellent temperature resistance, low cost and moderate performance.
The above is a list of permanent magnets that can withstand high temperatures. You can choose according to your magnetic requirements. If you need to know the price, please contact our company.
