Preparation process of sintered NdFeB magnets (1) - Raw material Today we start with the link of raw material preparation and alloy preparation. Sintered magnets usually use pure metals or intermediate alloys as raw materials, use the electromagnetic induction heating principle of eddy current generated by alternating magnetic fields in the raw materials, and conduct [...]
Preparation process of sintered NdFeB magnets (2) - Milling powder In the previous issue, we learned about alloy smelting and casting. After casting, the alloy needs to be made into powder through a pulverizing process before entering the subsequent processing process. Obtaining suitable powder shape, average particle size and particle size distribution is the basic [...]
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 [...]
Magnetization Direction of Square Magnet At present, they are widely used in the market, such as square shaped magnets, which can be widely used in the market. Don't be careless when purchasing square magnets. It is necessary to know the magnetizing direction you want There are many ways to magnetize a square magnet, which is [...]
Magnetization Direction of Square Block Magnet At present, they are widely used in the market, such as square shaped magnets, which can be widely used in the market. Don't be careless when purchasing square magnets. It is necessary to know the magnetizing direction you want There are many ways to magnetize a square magnet, which [...]
Novel Magnetic Material Discovered in Meteorite Tens of thousands of tons of meteorites fall to Earth every year. Meteorites first came into existence 4.6 billion years ago and since then they have existed in space without changing their form like “fossils” in the solar system. Research on the history of the solar system has been [...]
Magnet Common Sense As we all know, magnets are very useful in our daily life. To let those who are new to the world of magnets have a better understanding of them, in this article, we’ll introduce some common sense of magnets. A Brief History of Magnets The ancient Greeks and Chinese discovered a naturally [...]
MPCO Can Test the Angular Direction (ϕ, θ) of Magnetization! How well do you need to know your magnets? Using our m-axis testing equipment, magnetic moment, remanence and magnetization direction of magnetic dipoles can be characterized with high precision. The calculation is based on determination of the dipole using an integrated AMR sensor set-up. The [...]
Various shapes Magnets Magnetization Orientation Neodymium, ceramic, samarium cobalt magnets can be custom-made in various shapes, sizes and magnetization orientations or directions. In this article, we list out and illustrate some of the available options for magnetization orientation which is defined during pressing process and prior to magnetization. Of course, engineers can always request otherwise [...]
Rotor magnet shaping technologies for permanent magnet electrical machines Engine torque ripple is essential for the comfort of vehicle passengers. Large torque ripple may result in a harsh driving experience. Moreover, additional noise and vibration are byproducts of torque ripple. The service life of the machine and attached components can be influenced by severe vibrations. [...]
Magnetic Magnetization Patterns Isotropic magnets, such as Bonded Nd-Fe-B, are unoriented and have no preferred direction; therefore it is possible to magnetize them in any direction. Almost all other materials are anisotropic and have a preferred direction of magnetization. They will exhibit the best magnetic properties when magnetized in the direction of the grain. Higher [...]
Orientated Magnets Direction, Direction of orientation For ‘Orientated Magnets Direction / direction of orientation’ it is understood the position of the magnetic cristals in a specific direction. In the correct direction, the magnet reaches its magnetic values and thus, should be magnetized in this direction. The direction of orientation is achieved by exposing the magnetic [...]
