How Are Ferrite Magnets Made? Ferrite magnet, also know as a ceramic magnet, is a kind of permanent magnet. Compared with other permanent magnets, ferrite magnets are hard and brittle and have lower magnetic energy. But it is not easy to demagnetize, not easy to be corroded, and low in price. Therefore, ferrite magnets are [...]
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, [...]
Permanent Magnet for Bladeless Fan Motor Working Principle of Bladeless Fan The working principle of bladeless fan exists the fundamental difference from conventional fan. The basic structure of bladeless fan generally consists of base and annular nozzle. Annular nozzle is placed on the base and its inner channel is connecting with the base. The base [...]
Plastic Injection Molding Magnet Component in Electronic Expansion Valve for Air-condition, Plastic Injection Bonded Neodymium Magnet for Electronic Expansion Valve Key Specifications/Special Features: Magnet materials: NdFeB Plastic resin: PPS Second injection over-molding with the polymers (PPS/PA) Magnetizing pattern: multi-pole radial magnetization Simultaneous incorporating insert Available for electronic expansion valve of air-condition We are a well-reputed [...]
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 [...]
Handling Neodymium Magnets Safety Precaution With high intrinsic coercive force (Hci) over 12,000 Oe and maximum energy product ((BH)max) between 27-52 MGOe, neodymium magnets have the greatest strength among all available permanent magnet materials (>7 times stronger than ceramic magnets) as they are extremely resistant to demagnetization and have high saturation of magnetization. The magnetization [...]
Select Material Grades for Neodymium Magnets When you are trying to figure out which neodymium magnets to select for your design needs, you would always see the term “grade” or “N rating” from any supplier or manufacturer. Besides a few other criteria, desired material grade must be defined for a neodymium magnet. So, what does [...]
B-H Curve for Permanent Magnets What is a B-H curve first of all? B is the nomenclature for magnetic flux density (induction) and H is magnetic field strength; a B-H curve plots out the relationship between them for a particular ferromagnetic material. The changes in magnetic flux density is dependent on the magnetic field strength. [...]
Compression Bonded Moulded NdFeB Magnet Compression bonded magnets are composed of a special form of NdFeB powder with adhesive and using compression molding techniques in simple tools, it can be quickly machined into complex shapes. Since its materials are isotropic, bonded NdFeB magnet can be magnetized in any direction or with multiple poles. Special magnetizing [...]
Large Undulator Neodymium Permanent Magnets China MPCO MAGNETICS has some customers, who request permanent magnets for undulator, like N50M neodymium arc magnets in large sizes, with cutted sides, Nickel coating, working temperature 80 ℃. Customers usually send us drawings with enough information. A few of them require spread of magnetization less than 0.5%. As for [...]
Hast Neodymium Magnet Manufacturer – MPCO MAGNETICS Compared with traditional sintered neodymium iron boron magnets , HAST NdFeB magnets are more superior in corrosion resistance without the protection of plating. MPCO customizes HAST neodymium magnets like N38SHT, N35H HAST, N38H HAST as per customer’s special demands and applications. “HAST” is short for “Highly Accelerated Temperature/Humidity [...]
Major Difference Between Permanent Magnet & Electromagnet The major difference between an permanent magnet and electromagnet is that the former can have a magnetic field when electric current flows through it and disappears when the flow of the current stops. On the other hand, a permanent magnets are made up of magnetic material that is [...]