Magpole Technology Ltd

Sometimes Pot Magnets Can Meet Some Special Requirements While a Single Magnet Can Not Do. in the Meantime, Using Pot Magnets Can Save More Cost Than Just Using Magnets and Gain the Same Purpose.

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 Cobaltcomputer Disc Drives, Sensors, Traveling Wave Tubes, Linear Actuators, satellite Systems, Motors Where Temporary Stability is Vital.magnetizing and Handlingsamarium Cobalt Magnets are Very Brittle and Very Strong Magnetically. Therefore, it is Crucial to Handle These Magnets with Extreme Care to Avoid Personalinjury and Damage to the Magnets. Fingers Can Be Severely Pinched Betweenattracting Magnets. Magnets Can Chip if Allowed to Jump Anattracting Object. It is Highly Recommended that When Constructing Rareearth Magnetic Assemblies, They Be Magnetized After Assembly.samarium Cobalt Machiningsince 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 Byoxidized Grinding Dust.

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

AlNiCo material is comprised of aluminum, nickel, cobalt and iron with varying additions of other elements.There are two different manufacturing processes for AlNiCo:Cast and sintered.Cast AlNiCo can be made into many sizes and shapes, whereas Sintered AlNiCo is usually restricted to smaller sizes.However, both processes lead themselves to complex geometries and configurations.Standard Sintered AlNiCo has tighter dimensional tolerances due to its processing.It also has slighty lower magnetic properties, but better mechanical strength than Cast AlNiCo products.They are most suitable for small sizes that are less than 1 oz. It also results in parts that are structurally stronger than the cast alnico magnets. With the sintering process, one can achieve relatively close tolerances without any grinding.Sintered Alnico magnets are formed by compacting fine Alnico powder in a press and then sintering the compacted powder into a solid magnet. The powdered mixture of contents is pressed into a die under tons of pressure. It is then sintered in a hydrogen atmosphere at 2300F and then cooled either within a magnetic field or without a magnetic field. When cooled within the magnetic field it is known as an anisotropic magnet and when cooled outside of a magnetic field it is called an isotropic magnet. The sintering process is well suited to large volume production.Attributes of Alnico Magnets:High mechanical strength, suitable for small volume magnets with complex shape. Working temperature can reach 550-600 C Does not lend itself to conventional machining (hard and brittle) Good corrosion resistance; High residual induction and energy product compared to ceramic material Excellent temperature stability (temp. coefficient of Br is the smallest among all of the other permanent magnets) Applications of Alnico Magnets:Relays Controls Generators Receivers Telephones Bell ringers Loudspeakers Cow magnets Microphones