Magnetic alloy

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  • IPM vs SPM Electric Motors

IPM vs SPM Electric Motors

IPM vs SPM Electric Motors A PM motor can be separated into two main categories: surface permanent magnet motors (SPM) and interior permanent magnet motors (IPM) . Neither motor design type contains rotor bars. Both types generate magnetic flux by the permanent magnets affixed to or inside of the rotor. SPM motors have the magnets [...]

  • Difference Between Inline and Surface Mount NdFeB Magnets in PM Motors

Difference Between Inline and Surface Mount NdFeB Magnets in PM Motors

Difference Between Inline and Surface Mount NdFeB Magnets in PM Motors What is the difference between inline and surface mount design of NdFeB magnets for permanent magnet motors? A permanent magnet (PM) motor is a type of AC motor that uses permanent magnets embedded or attached to the surface of the motor rotor. Electric vehicles [...]

  • Effects of Magnetic Parameters on Permanent Magnet PM Motors

Effects of Magnetic Parameters on Permanent Magnet PM Motors

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

Permanent Magnet Motor Operation Tips

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

The “Center” of Permanent Magnet Motors

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 [...]

  • What is SmFeN Magnet

What is SmFeN Magnet

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 [...]

  • fig-0001 Scanning electron microscopy (SEM) micrographs of the as-printed

Thermal Stability of Anisotropic Bonded Magnets Prepared by Additive Manufacturing

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 [...]

  • Figure 2. m-axis, “Magnetic Monitoring” system for magnet characterisation in QM processes

New Measurement Technique Characterizes Permanent Magnets

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 [...]

By |September 21st, 2023|Magnet Coating, Magnet News, Magnetic Design, Magnetic Field, Magnetic Ideas, Magnetic Industry, Magnetic Knowledge, Magnetic Materials, Magnetic Science, Magnetic Technology, NdFeB, Neodymium Magnets, Sintered NdFeB|Comments Off on New Measurement Technique Characterizes Permanent Magnets
  • Figure 1 Acceptable Permanent Magnet Use Temperatures

Permanent Magnets in a Changing World Market

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

Manufacturing Processes for Permanent Magnets: Bonding and Emerging Methods

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 [...]

By |September 17th, 2023|Magnet Coating, Magnet News, Magnetic Design, Magnetic Field, Magnetic Ideas, Magnetic Industry, Magnetic Knowledge, Magnetic Materials, Magnetic Science, Magnetic Technology, NdFeB, Neodymium Magnets, Sintered NdFeB|Comments Off on Manufacturing Processes for Permanent Magnets: Bonding and Emerging Methods
  • Measuring Magnetic Fields

Measuring Magnetic Fields

Measuring Magnetic Fields After reading this section you will be able to do the following: Determine how the direction and intensity of magnetic fields can be found. Describe how a field indicator and a Hall-effect meter work. Since it is impractical to measure the actual field strength within the material, all the devices measure the [...]

  • Circular Magnetic Fields Distribution and Intensity

Circular Magnetic Fields: Distribution and Intensity

Circular Magnetic Fields: Distribution and Intensity After reading this section you will be able to do the following: Explain the distribution and intensity of magnetic fields around conductors Explain what the skin effect is As discussed previously, when current is passed through a solid conductor, a magnetic field forms in and around the conductor. The [...]

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