Industrial Magnets Encyclopedia from HSMAG
Every day, different people working in different industries are dealing with a wealth of equipments or devices that contain various magnetic parts or custom magnet components. In this article, HSMAG magnet factory, one of influentially large magnet product manufacturing facilities, will walk you through magnet details about its classification, material, manufacturing workmanship, pros and cons respectively. When it comes to magnet product buying guides, welcome to consult HSMAG magnet factory.
Coming next is about its category.
There are many kinds of magnets based on different standards, which nonetheless are generally divided into permanent magnet and soft magnet, in which, the former can be divided into two categories:
1st permanent magnet : metal alloy permanent magnet including ndfeb magnets, samarium cobalt magnets, aluminum nickel cobalt magnets.
2nd permanent magnet: ferrite permanent magnet materials
1. Ferrite magnet: The main materials of ferrite include BaFe12O19 and SrFe12O19. Made by ceramic process craftmanship, it is a hard and brittle material. Ferrite magnet has become the most widely used permanent magnet because of its good temperature resistance, low price and moderate performance.
2. Ndfeb magnet: NdFeb is the most commercially available magnet and it is known as the king of magnetic material. It has a very high magnetic capacity and its is 10-times BHmax, much higher than Ferrite magnet. Its own mechanical processing performance is also quite astoundingly heat-resistant, with its operating temperature highly up to 200 degrees Celsius. And its texture is hard, while the performance is stable, factored with low cost, its application is extremely extensive. Nevertheless, because of its strong chemical property, it is a must to be coated with other metals on the surface. ( say Zn,Ni, electrophoresis, passivation, etc.)
3. SmCo magnet (SmCo) can be sorted into SmCo5 and Sm2Co17 according to its different components. Samarium cobalt’s development can’t be fully unlocked due to its expensive cost. SmCo, as a rare earth permanent magnet, it has high magnetic energy effect (14-28MGOe), plus reliable coerce and good temperature characteristics. Samarium cobalt magnets are better suited to work in high temperatures than Neodymium iron boron magnets.
4. Aluminum-nickel-cobalt magnets (AlNiCo): Aluminum-nickel-cobalt is an alloy of aluminum, nickel, cobalt, iron, and other trace metal elements. The casting process of aluminum-nickel-cobalt magnets can be processed into different sizes and shapes with good machinability. Cast al – Ni – Co permanent magnets have the lowest reversible temperature coefficient, its resistant temperature in operation can be up to 600 degrees Celsius. Al-ni-co permanent magnet products are widely used in various instruments and other magnetic parts for machines.
According magnet sequence based on size: NdFeb magnet, samarium cobalt magnet, aluminum nickel cobalt magnet, ferrite magnet.
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