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How much do you know about magnets can normal working temperature

by:Newland     2020-04-18
Magnet has no effect on temperature drop in the process of operation, and is sensitive to temperature. Every magnet has its can withstand maximum temperature. Ferrite magnets, for example, the highest working temperature is 300 degrees, and such as ndfeb, sa and cobalt magnet aluminum alloy of nickel and cobalt magnet magnet highest working temperature can reach 500 degrees. Alnico magnet is composed of aluminum, nickel, cobalt, iron and other trace of metal alloys. After casting, can be processed into a variety of sizes and shapes, working very well. AlNiCo permanent magnet has the lowest reversible temperature coefficient, maximum running 600 degrees Celsius. AlNiCo magnets are widely used in various kinds of instruments and other high temperature applications. Magnet is one of the most traders buy magnets, often referred to as magnetic king. They have very high magnetic energy, the maximum magnetic energy product ( BHmax) More than 10 times higher than ferrite magnets. Machining properties of NdFeB is also very good. It can only be in below the temperature of the AlNiCo magnets ( Up to 200 degrees Celsius) The work. Due to the hard, NdFeB magnet magnetic performance is stable, cost-effective, therefore has been widely used. Because NdFeB alloy has a strong chemical activity, must therefore be NdFeB magnets for coating to protect the surface. ( Such as plating, nickel plating, gold-plated, silver plated, electrophoresis epoxy resin, etc. ) 。 Cobalt magnet ( SmCo) According to the components are divided into SmCo5 and Sm2Co17. Because of the high price of raw materials, its popularity is restricted. Cobalt (mar SmCo) As a rare earth permanent magnet, high magnetic energy product ( 14 - 28 mgoe) , extremely stable coercive force and good heat resistance. Compared with the ndfeb magnets, sa cobalt magnet is more suitable for working under high temperature environment. Ferrite magnet, its main raw materials including BaFe12O19 and SrFe12O19. Ferrite magnets through ceramic manufacture process, and quality of a material is relatively hard and brittle. Because the ferrite magnets has good heat resistance, low price and performance of moderate, so it is very widely used permanent magnet. Previous page: strong ndfeb magnetic control quality do you want to know the next page: if you have really understand the principles of magnet
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