An electropermanent magnet or EPM is a type of permanent magnet in which the external magnetic field can be switched on or off by a pulse of electric current in a wire winding around part of the magnet.
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Get PricePermanent magnets are made from special alloys (ferromagnetic materials) such as iron, nickel and cobalt, several alloys of rare-earth metals and minerals such as lodestone. Unlike electromagnets, permanent magnets produce a persistent magnetic field without the need for any external source of magnetism or electrical power.
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Get PricePermanent magnets are an integral part of many motors that take advantage of advances in obtaining powerful and stable magnetic materials. Today, rare earth magnets containing lanthanide elements such as neodymium and samarium carry large magnetic moments.
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Get PriceBunting® MagLift Permanent Magnetic Lifters are powered by blocks of high-energy neodymium magnetic material. Switching the magnet on/off is achieved by making one of these blocks reversible. In the "on" position, the reversible block is in parallel with the static blocks so that a concentrated magnetic field is produced at the pole feet for lifting.
Get PricePermanent magnets are made from special alloys (ferromagnetic materials) such as iron, nickel and cobalt, several alloys of rare-earth metals and minerals such as lodestone. Unlike electromagnets, permanent magnets produce a persistent magnetic field without the need for any external source of magnetism or electrical power.
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Get PricePermanent Magnet DC Motor A DC Motor whose poles are made of Permanent Magnets is known as Permanent Magnet DC (PMDC) Motor. The magnets are radially magnetized and are mounted on the inner periphery of the cylindrical steel stator. The stator of .
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A permanent magnet is called a permanent magnet because its magnetism is 'always on', it generates its own persistent magnetic field unlike an electromagnet which is made from a coil of wire wrapped around a ferrous core and requires an electric current to generate a magnetic field.
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Get PriceNov 24, 2015 · Permanent magnets can be magnetized by putting them in an external magnetic field. They do not lose their magnetization over a large range of reverse external magnetic fields, or when the external magnetic field is switched off. Temporary magnets can also be magnetized by putting the material inside an external magnetic field. When the external magnetic field is switched off, the .
Get PriceTypically, permanent magnets are made from "hard" magnetic materials where "hard" refers to a material's ability to become magnetized and remain magnetized. Steel is an example of a hard magnetic material. Many permanent magnets are created by exposing the magnetic material to a very strong external magnetic field.
Get PricePermanent magnets are available in neodymium, rare earth, ceramic, samarium cobalt and alnico. Used in manufacturing, OEM, craft, hobby and educational applications.
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