Effects of Magnetic Parameters on Permanent Magnet PM Motors How to measure the magnetic properties of magnet? Almost all magnet manufacturers use B-H curve testing equipment to get the demagnetization curve of magnet. This method is a closed circuit measurement, and an uniform cross-section sample is clamped between the faces of electromagnet. The testing sample [...]
Permanent Magnet Motor Operation Tips Key technical points for maintaining normal operation of permanent magnet motors Once the permanent magnet motor is demagnetized, basically the only option is to replace the motor; the cost of repair and a large amount of how to determine the permanent magnet motor demagnetized it, we go on to see. [...]
The “Center” of Permanent Magnet Motors – Permanent Magnets The development of permanent magnet motors is closely related to the development of permanent magnet materials. China is the first country in the world to discover the magnetic properties of permanent magnetic materials and apply them to practice. More than 2000 years ago, China made a [...]
Alignment Technique for Anisotropic Injection Magnets Overview: The Alignment Technique for Anisotropic Injection Magnets refers to a specific method used in the manufacturing process of anisotropic injection-molded magnets to achieve the desired magnetic alignment or orientation within the final magnet product. Anisotropic injection magnets are a type of permanent magnet known for having a preferred [...]
What is SmFeN Magnet SmFeN magnetic material uses abundant rare-earth Sm element instead of expensive elements of Nd, Dy, Co, etc, and is the most cost-effective rare earth permanent magnetic material. Compared with the bonded neodymium magnet, the bonded SmFeN magnet has higher magnetic properties and lower prices. Moreover, curie temperature, corrosion resistance, and thermal [...]
Thermal Stability of Anisotropic Bonded Magnets Prepared by Additive Manufacturing Abstract In this research, anisotropic NdFeB + SmFeN hybrid and NdFeB bonded magnets are additively printed in a polyphenylene sulfide (PPS) polymer binder. Printed NdFeB + SmFeN PPS bonded magnets displayed excellent magnetic properties (Br [remanence] = 6.9 kG [0.69 T], Hcj [coercivity] = 8.3 [...]
New Measurement Technique Characterizes Permanent Magnets Permanent magnets are widely used for sensor and motor applications. Besides these, magnetic fields are also used for applications such as storage of information and fraud protection on documents. With the number of critical applications continuing to rise, developers and producers are increasingly forced to meet safety requirements, as [...]
Permanent Magnets in a Changing World Market There are several commercially available permanent magnets. In sequence of invention they are: alnico, ferrite, SmCo (samarium cobalt), NdFeB (neodymium iron boron, Neo), and SmFeN (samarium iron nitride). The last three types are considered “rare earth” magnets because they contain one or more rare earth elements. In terms [...]
Manufacturing Processes for Permanent Magnets: Bonding and Emerging Methods Abstract Permanent magnets produce magnetic fields and maintain the field even in the presence of an opposing magnetic field. They are widely used in electric machines, electronics, and medical devices. Part I reviews the conventional manufacturing processes for commercial magnets, including Nd-Fe-B, Sm-Co, alnico, and ferrite [...]
What is Magnetic bracelets? Magnetic bracelets are accessories that are believed to have therapeutic benefits due to the presence of magnets. These bracelets typically consist of small magnets embedded in the bracelet's links or beads. The idea behind magnetic therapy is that the magnets can create a magnetic field that interacts with the body's natural [...]
Often wear magnet bracelets, cure diseases and strengthen health The earth is a big magnet, and human beings are not affected and affected by the geomagnetic field all the time. Like air, water and sunlight, geomagnetism is one of the indispensable elements for the survival of human life. When a person is exposed to a [...]
Why is the magnet bracelet nicknamed the bracelet that can cure diseases? The human body itself is a magnetic field. Although the effect is not strong, it is known from some data that the human body is still relatively sensitive to the magnetic field lines. From the detailed analysis, the appearance of the magnet bracelet [...]