The neodymium magnets are used in so many appliances and domains that noting them all would certainly take a lot of time, but, nevertheless, in this article we are going to look at a few very common usage types of these powerful magnets. Learning how they contribute to appliances and products that that we use every day will allow us to gain understanding and appreciation for these simple and yet very useful magnets.
Medical and therapeutic usage
The neodymium magnets are used extensively in a wide range of medical apparatus, one of the most interesting being the MRI – magnetic resonance instruments. The magnetic field created by these installations is so powerful that magnetic objects will be attracted from afar. Inside the room of an MRI no other magnets can enter, no materials that are attracted to magnets. This includes surgical implants that are magnetic and even dental fillings, which if the MRI needs to be used, will have to be removed.
In therapy, magnets have been used in China as far as 2000BC, so it is not a thing of wonder to still see them applied in certain beauty shops or in clinics. However, studies at this point are quite divisive, some doctors attest to changes and even healing due to treatment with magnets and neodymium magnets others are a lot more reserved.
A few years ago almost all TV sets used to be based on the cathode ray technology, and later models, to improve image quality used neodymium magnets to direct the jet of electrons towards the screen. At this moment however, CRT screens are a lot less frequent as they have been replaced by liquid crystal technologies or LEDs.
While the tendency today is to move towards flash based mass storage, the technology is still years from battling in terms of pricing with the spinning disks that make our hard drives functions. SO, inside most commercial grade hard drives, the neodymium magnets make sure that the surface of the platters can be inscribed with information while in the motor, they insure unparalleled speeds as well as a very long lived period of functioning.
Magnetic sweepers, sorters and separators
When an industrial process requires that ferrous particles be removed from a certain product, the neodymium magnets will be the best in making sure that the resulting process will eliminate all ferrous deposits. The magnets are thus used in static sorters and separators, which can have various sizes and purposes in the industrial processing chain.
One very exciting use of neodymium magnets is in making trains float! Yes, that’s right, a TGV, (train au grand vitese) uses neodymium magnets to repel the engine and other compartments from the track, thus insuring frictionless circulation.