Preparation process of sintered NdFeB magnets (3) - orientation forming Magnetic field orientation forming is to use the interaction between magnetic powder and external magnetic field to arrange the easy magnetization direction of powder particles so that it is consistent with the final magnetization direction of the magnet. This is the most commonly used method [...]
Preparation process of sintered NdFeB magnets (4) - Sintering, heat treatment and machining Sintering and heat treatment The blanks pressed by magnetic field orientation are sintered in a high vacuum or pure inert atmosphere to reach a high density close to 95% of the theoretical density. The magnet holes are in a closed structure, which [...]
How To Identify The Quality Of A Sintered NdFeB Magnet? Due to its cost-effectiveness, the sintered Nd-Fe-B neodymium magnet is widely used in many fields. Its applications include PC hard drives, magnetic resonance imaging (MRI), electric cars, magnetic levitation technique and consumer products like DVDs, mobile phones and speakers. Since it is required in nearly [...]
5 Tips Introduction of NdFeB Magnet Production Process 1. Forming orientation: Process introduction: The function of orientation is to turn the easy magnetization direction c-axis of chaotically oriented powder particles to the same direction to obtain the maximum remanence. The main purpose of compaction is to crush the powder into a certain shape and size, [...]
How Are Samarium Cobalt Magnets Made SmCo magnets are rare earth magnets with high magnetic energy product and extremely low-temperature coefficient. Its maximum operating temperature can reach 350°C. When working at a temperature above 180℃, its maximum magnetic energy product (BHmax), coercivity, temperature stability, and chemical stability all exceed those of the NdFeB magnet. But [...]
How Are Alnico Magnets Made? Alnico magnet was successfully developed in the 1930s. It is composed of aluminum, nickel, cobalt, iron, and other trace metal elements. Thanks to their high coercivity and high Curie temperature, Alnico magnets are widely used in many industrial and consumer products, such as motors, electric guitar pickups, microphones, sensors, speakers, [...]
How Neodymium Magnets are Made The method for manufacturing Neodymium Iron Boron magnets is as follows: MELTING OF THE ALLOY UNDER VACUUM The Neodymium metal element is initially separated from refined Rare Earth oxides in an electrolytic furnace. The Neodymium, Iron and Boron and the other chemical elements are weighted and put in a vacuum [...]