Characteristics of NdFeB Magnets

I am the news editor of Dongguan Wanxin Magnet Industry. Today we talk about the types of magnets, and even what products are generally used.

The first we will talk about NdFeB strong magnets, commonly known as magnetic, is now recognized as the world's magnetic king. Magnetic force is a magnetic product with the strongest magnetic force in all magnets. Its compositional organization, iron, occupies the main component, up to 70% of the total, of which germanium, boron, rare earth, antimony, bismuth, and tellurium only occupy 30 percent of the total. The temperature resistance coefficient of NdFeB magnets is not the same, and the higher the temperature resistance, the different the material ratio. Ordinary magnetic temperature up to 80 °C, up to 220 degrees Celsius. NdFeB magnets are widely used in aerospace, electromechanical, packaging, electronics, electrical appliances, luggage, hardware, plastics, etc.

The second is to talk about ferrite, commonly known as general magnetism, black magnetism. It is a metal oxide. Ferrite is about ten times less magnetic than NdFeB magnets, and the unit price will be ten times cheaper. Ferrites are generally suitable for refrigerators, motors, motors, etc. His main ingredients are yttrium, lanthanum, lead, etc.

The third is to talk about rubber magnets, commonly known as soft magnetic, plastic magnetic is a softening magnetic material. Rubber magnetic is generally suitable for refrigerators, bookmarks, refrigerator door suction, light box magnet.

What is the difference in the magnetic properties of a powerful magnet?

I believe all of you seeing the officers know that people have 369 and so on. Magnets are no exception. He also has magnetic levels. Today we talk about the division of magnetic grades of NdFeB magnets.

The performance of NdFeB magnets is divided into N25--N28--N30--N33--N35--N38--N40--N42--N45--N48--N50--N52. The level of magnetism is converted by the height of the figure. Among them, the N25 magnetic force has the highest N52 magnetic force. According to the data in the industry, the difference between each grade is about 1 to 200 Gauss. This means that the general specifications cannot be converted by this value. . Believe to see here, many people want to ask: What does Gauss mean? Xiao Bian makes a simple introduction here. “Gaussian” is an overview of magnetic values ​​in the magnet industry. Each magnet will have a Gaussian value. This value is also the magnet's magnetic force. Of course, this Gaussian can only be compared within the same specification because of the size of the magnet. It will affect the Gaussian value of the entire magnet. So you can only do comparisons within the same specifications.

Temperature coefficient of neodymium iron boron magnet

I believe we all know that many products will encounter a problem is the temperature, the temperature can not be used for a high product, the magnet is the same. General products do not require temperature resistance is of course the best, but there are many products in the production process will be very high temperature, and even some products usually run at work when it is also spent in high temperatures, so for everyone to popularize the magnet Which temperature resistance coefficient, the temperature coefficient of the magnet is from the brand: M--H--SH--UH--EH NdFeB magnets up to 200 °C, which M material 100 °C, H material 120 °C, SH material 150°C, UH material 180°C, EH material 200°C.