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https://www.jjmagnet.net/hot-pressed-magnets-in-radially-oriented-ring-applications.html
In the field of advanced magnetic materials, hot pressed magnets represent a significant innovation in both performance and precision. Utilizing a specialized hot deformation pressing process, these magnets combine superior magnetic properties with excellent structural stability, making them ideal for high-efficiency motor and sensor applications.
Shape and Structural Characteristics
Due to current production limitations, hot pressed magnets are primarily manufactured in ring shapes. During the hot deformation pressing process, the magnetic powder is subjected to high pressure and temperature, allowing the particles to plastically deform. This process induces a directional texture along the sidewalls and bottom of the ring, which gradually transforms into a uniform radial orientation.
As a result, the magnet exhibits outstanding magnetic performance along the radial direction, ensuring consistent magnetic field distribution. This manufacturing method enables the production of thin, radially oriented magnetic rings, often designed as multi-pole ring magnets, which are highly suitable for compact and high-precision applications.Advantages of the Hot Pressing Process
Compared with conventional sintered magnets, the hot pressing technique provides several unique advantages:
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Improved Density and Strength – The process achieves near-theoretical density, enhancing both magnetic and mechanical strength.
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Excellent Magnetic Uniformity – The radial orientation ensures stable magnetic performance, crucial for precision devices.
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Thin-Walled Design Capability – Enables the production of smaller, lighter magnetic rings without compromising strength.
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Reduced Post-Processing Needs – The near-net-shape forming minimizes material waste and machining requirements.
Applications
Radially oriented hot pressed ring magnets are widely used in automotive motors, microgenerators, magnetic couplings, and precision sensors, where compact size, high performance, and consistent magnetic fields are essential. Their ability to deliver strong and stable magnetic properties makes them an excellent choice for next-generation energy-efficient and high-speed motor systems.
With advanced manufacturing expertise and precision control, Ningbo Jinji Strong Magnetic Material Co., Ltd. provides high-quality hot pressed magnets that meet the evolving demands of modern industries. Through continuous innovation, the company is committed to driving progress in magnetic material technology and contributing to the advancement of high-performance engineering solutions worldwide.
https://www.jjmagnet.net/Hot-Pressed-NdFeB-Magnets.html
https://www.jjmagnet.net/hot-pressed-magnets-in-radially-oriented-ring-applications.html
Ningbo Jinji Strong Magnetic Material Co., Ltd. -
