Application of Alnico Magnets In the vast universe of magnetism, Alnico magnets stand out for their remarkable properties and versatile applications. Comprised of aluminum (Al), nickel (Ni), cobalt (Co), and often including iron and other metals, Alnico magnets were developed in the 1930s and have since been integral to a myriad of technological advancements. Their [...]
Axial Flux Motor Magnet What is axial flux motor? The motor can be divided into axial flux type and radial flux type according to the direction of magnetic field. The world’s first motor was invented by Michael Faraday on 1821. Actually, Faraday motor is belong to axial flux motor, but the further development of axial [...]
Standard Magnetic Security Screwdriver This magnetic screwdriver is capable of holding any 1/4 inch hex driver inserts. The magnetic tip aids application and there is also a storage compartment in the bottom of the driver to hold your most regularly used bits. The handle of the screwdriver is designed with grip in mind - ridges [...]
Magnetic Sheet Material: Strontium ferrite in thermo-plastic binder. Max. operating temperature 356°F. Magnetic on 1 face. UV coating for cleaner handling. Flexible and impact resilient but can easily be cut using scissors. Regular shapes can be cut using inexpensive dies. Available with plain, white gloss or standard acrylic adhesive backing. Coloured and dry-wipe finishes available [...]
MAGNETIC POLES The magnetic force surrounding a magnet is not uniform. There exists a great concentration of force at each end of the magnet and a very weak force at the center. Proof of this fact can be obtained by dipping a magnet into iron filings (fig. 1-8). It is found that many filings will [...]
Make A Simplest Electric Motor At Home I will show you how to create a simple homopolar electric motor here. It's really easy to do, and you will not need any professional material or stuff to do that at home. Today, I will design a simple one, you can also create your own homopolar motor [...]
How often should I be cleaning my magnets? CLEANING MAGNET This is another question that is dependent upon your individual process. Obviously the more metal you receive or produce in your process, the more frequently the magnets need to be cleaned. A general rule is the more frequently, the better. As a magnet gathers ferrous [...]
Bonded Magnet Material And Process Options Injection Molding Compression Bonding Calendering Extrusion Bonded Magnet Material And Process Compression Bonding or Injection Molding? Injection Molding • Complex forms with good geometrical tolerances • Multi‐cavity tooling • Over and insert molding But • Expensive tooling • Lower magnetics (66% volume loading of magnetic powder) • NdFeB and ferrite Compression Bonding • Thin walled large L/D ratio rings • Simple low cost tooling • Higher magnetics (75% volume loading of magnetic powder) But • Simple geometries • Value added operations during pressing very difficult • NdFeB only CLEANING MAGNET TESTING MAGNET How long should my permanent magnet last? MAGNETIC APPLICATIONS
What is the Geographic (True) North Pole? The Earth rotates on the geographic north and south poles. The geographic north and south poles are where lines of longitude (meridians) converge in the north. The south and north pole are directly opposite to one another. The North Pole is located in the middle of the Arctic [...]
What Are Bonded Magnets Anyway? • Bonded magnets are composites of a permanent magnetic powder(s) embedded in a non‐magnetic matrix. • The matrix is typically a thermoplastic or elastomeric binder. • Common processing techniques are extrusion, injection molding, compression bonding, and calendering. • Exhibit excellent mechanical properties compared to fully dense rare earth and ferrite magnets. • End product has good finish and dimensional tolerances requiring no finishing operations. • Injection molded magnets can be formed into complex shapes and be insert or over molded directly onto other components to produce assemblies. • The non‐magnetic binder lowers the density of the magnet and dilutes the contribution of the magnetic powder. • They generate less magnetic output per unit volume than fully dense magnets. • The two most common magnetic powders are isotropic NdFeB and hard ferrite. Neodymium Bonded Radial Ring Magnet Rare Earth Neodymium Isotropic Ring Bonded Magnet Compression Bonded Ring Magnet Bonded Ring NdFeB Magnet
What is the Magnetic North Pole? The Earth is one big magnet. The Magnetic North Pole (also known as the North Dip Pole) is a point on Ellesmere Island in Northern Canada where the northern lines of attraction enter the Earth. A compass needle rests freely in its casing so it can maneuver itself. When [...]
Computer Hard Drive Magnets Computer hard drive magnets are indispensable components within modern computing technology. There was once a concern that magnets have the potential to erase data from our hard drives, cause disruptions in computer monitors, or interfere with the electron flow within cables. But these powerful magnets are integral to the functioning of [...]