Attributes of Samarium Cobalt • High resistance to demagnetization • High energy (magnetic strength is strong for its size) • Good temperature stability • Expensive material (cobalt is market price sensitive) Applications of Samarium Cobalt Computer disc drives, sensors, traveling wave tubes, linear actuators, satellite systems, motors where temporary stability is vital. Magnetizing and Handling Samarium Cobalt magnets are very brittle and very strong magnetically. Therefore, it is crucial to handle these magnets with extreme care to avoid personal injury and damage to the magnets. Fingers can be severely pinched between attracting magnets. Magnets can chip if allowed to “jump at” an attracting object. It is highly recommended that when constructing rare earth magnetic assemblies, they be magnetized after assembly. Samarium Cobalt Machining Since Samarium Cobalt magnet material is prone to chipping and cracking, it does not lend itself to conventional machining methods. It can, however, be abrasively ground, but only with the use of liberal amounts of coolant. The coolant minimizes heat fracturing and the risk of fires caused by oxidized grinding dust.
Executive Buckyballs Magnetic Puzzle Game. Shape, mold and snap them together in unlimited ways. A game, sculpture, and the perfect addition to your executive desk. Thats Executive Buck balls, the incredible magnetic puzzle thats always changing, always amusing, always building on itself and there are no wrong answers, ever. Create your own three dimension works of art as unique focal points on your desk. Great conversation starters, too. Includes 216 powerful rare earth magnets coated in black nickel, real gold, silver green, blue, red, yellow, white, true black and pink colors. These powerful little magnets each have two poles one side repels, the other attracts for unlimited shape-shifting and de-stressing to your hearts content! Have fun make that unlimited fun with Executive Buck balls. Ages 14+ (not intended for children). Discover the unlimited fun for yourself. Do not put in nose or mouth. Swallowed magnets can stick to intestines causing serious injury or death. Seek immediate medical attention if magnets are swallowed or inhaled. Magnetic material: N35-N52 NdFeB Size: typical D5mm; and D1.5-D50mm for choice. Color: black nickel, real gold, silver, green, blue, red, yellow, white, true black and pink surface plated, gold-plated, silver, nickel and copper-nickel, black nickel, zinc, chromium. 0.2kg/set.
Product information: • Produced by the powder metallurgical method with chemical composition of Nd2Fe14B • Very brittle and hard • Poorest corrosion resistance of all commercial magnetic material • High resistance to magnetic demagnetization • Excellent cost to performance ratio • Reasonable temperature stability • Not suitable for application which exposed to high temperatures.
We have strong sintered AlNiCo permanent magnet production scale, can produce the performance of Alnico2-8 grades. And annual output nearly 800 tons. AlNiCo magnet is suitable for producing complex, light, thin, and small products, and is widely used in instrumentation, communications, magnetoelectric switches, and various sensors. AlNiCo products are mainly used in automotive parts, instrumentation, electroacoustics, motors, nuclear power, teaching, aerospace and other fields. It has the characteristics of low temperature coefficient, high temperature resistance, humidity resistance, not easy to oxidize and good working stability.
Description : The most powerful magnets commercially available Manufactured by a powder metallurgical process involving the sintering of powder compacts under vacuum Grinding and slicing possible Very reactive with moisture and oxygen A variety of Coatings can applied depending on the environment of the application Applications : various types of electric motors, engineering equipment, medical equipment, audio apparatus and household appliances
The magnets are composed of neodymium, iron, boron and a few transition metals. Sintered ndfeb magnets are the most powerful permanent magnets available today. It has a combination of very high remanence and coercivity, and comes with a wide range of grades, sizes and shapes such as rings, blocks, discs and segments. With its excellent magnetic characteristics and abundant raw material, ndfeb magnet offers more flexibility in designing of new or replace the traditional magnet materials such as ferrite, alnico and sm-co to achieve high efficiency, low cost and more compact devices. Ndfeb magnet is highly susceptible to corrosion and coating is always necessary. Frequently they are plated in nickel, zinc, tin and epoxy resin.
Description : Plastic-bonded magnets are particle composites with permanent-magnet powder embedded in a plastic binder. Hard ferrite (HF), various SmCo and NdFeB powders and, to a very little extent, AINiCo alloys are used as magnetic powder. For embedding the magnetic particles, thermoplastic binders as, for instance, polyamide (PA) or polyphenyl sulfide (PPS) and duroplasts like epoxy resins are used. Depending on the material composition and production process, isotropic and anisotropic magnets with differing magnetic and mechanical specifications are available. Since not only the type of magnet or plastic material, but the filling and alignment degree, too, determine the composite`s properties, the outcome is widely varying magnetic parameters and an outstanding variety in types and shapes.
Halbach array is a special arrangement of permanent magnets that augments the magnetic field on one side of the array while cancelling the field to near zero on the other side.[1] This is achieved by having a spatially rotating pattern of magnetisation. The rotating pattern of permanent magnets (on the front face; on the left, up, right, down) can be continued indefinitely and have the same effect. The effect of this arrangement is roughly similar to many horseshoe magnets placed adjacent to each other, with similar poles touching.
Magnetic Writing and Drawing Board Material: ABS+ Magnet
