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Neodymium magnets are rare types of magnets found on earth. They are considered permanent and are made out of a combination of alloys of iron, boron and neodymium. The mixture of these three alloys provides two more names for which the magnets are called - the NIB magnet or the NdFeB magnet. Nd is the chemical symbol for neodymium, Fe is for Iron while B is for boron. Now, these magnets are also considered the strongest of all permanent magnets.In order to appreciate more about this industrial product, it pays to take a look at the manufacturing techniques and how it is produced. Furthermore, learning about its applications is also an essential part of knowing more about the neodymium magnet. These facts are presented as follows.
Manufacturing techniques for neodymium magnetsIt was General Motors Corporation together with the efforts of the China Academy of Science and Sumitomo Special Metals that discovered the combination of neodymium, iron and boron compounds to form a permanent magnet. This event in history took place in 1982. The discovery was brought about by the increasing cost of permanent magnets used by SmCo.General Motors adapted a manufacturing technique known as the melt-spun nanocrystalline. Sumitomo Special Metals, on the other hand made use of the so-called full-density sintered technique. These two companies progressed with the use of their different manufacturing techniques for the permanent magnet. Now, General Motors have its own way of commercializing this product by distributing the permanent magnets to manufacturers of bonded magnets while Sumitomo's production is being used in Hitachi Corporation.How are neodymium magnets producedTwo processes are used in order to produce a neodymium magnet. The first type is called the sintered process where classical powder metallurgy is used. The second is the bonded magnet process which gears on the so-called rapid solidification technique.The sintered magnets are prepared out of pulverized ingot allowing the powder to form blocks. These are heated before they are cut according to the shape required by clients. After this, the treated surface is magnetized. This is a very popular technique in Japan and China.
For bonded magnets, melt spinning techniques are used from the combination of the three alloys. Out of the spinning process for the thin portions of this alloy, the ribbon is pulverized before it is combined with a polymer through the process of injection molding or compression.Applications for a neodymium magnetModern technology is dependent upon the production of neodymium magnets. Computers, medical equipment, entertainment systems, telephones and automotives are but few of the items relying from these industrial products. These permanent magnets are found in both professional and domestic electronic and electromechanical devices. bonded neodymium magnet manufactuer