Anisotropic Bonded NdFeB Magnets

Anisotropic Bonded NdFeB Magnets, anisotropic bonded neodymium magnets, Compression bonded neodymium magnets, Nd-Fe-B anisotropic bonded magnet, polymer bonded permanent magnets China factory

Considerations for achieving high degree of alignment in polymer bonded permanent magnets are presented via the results of a study on in situ magnetic alignment of anisotropic Nd-Fe-B magnet powders (Anisotropic Bonded NdFeB Magnets). Contributions from effect of the alignment temperature, alignment magnetic field and the properties of the polymer on the hard magnetic properties of the bonded magnet were considered. The thermorheological properties of the polymer and the response of the magnet powders to the applied magnetic field indicate that hard magnetic properties were optimized at an alignment temperature just above the melting temperature of the copolymer. This agrees with an observed correlation between the change in magnetization due to improved magnetic alignment of the anisotropic powders and the change in viscosity of the binder. Manufacturing cost can be minimized by identifying optimum alignment temperatures and magnetic field strengths.

Anisotropic Bonded NdFeB Magnets

Anisotropic Bonded NdFeB Magnets

Compression molding suitable anisotropic magnet powder had not been established facing the difficulty of contradiction of high density and magnet powder alignment. By applying both magnetic field and pressure at the moment when the resin is melted into liquid state by heating, both high density and a high degree of magnet powder alignment are attained. Furthermore, application of degassing and ultrasonic vibration were found to be effective. An anisotropic bonded magnet with the maximum energy of more than 20 MGOe, in other words, more than 80% of the theoretical value of maximum energy product, is obtained.

Bonded NdFeB magnets are strong magnets which are used for various applications. They are manufactured by binding rapid-quenching NdFeB powde mixed with resin to form a magnet by compression molding with epoxy or infection molding with nylon. The latter technique is particular effective in large volume production, though the magnetic value of products is lower than those made with compression molding because of their relatively lower density. Bonded NdFeB is easily machined. Coolants must be used while machining this material in order to avoid spontaneous combustion of powder. Machining this material removes a layer of protective coating, and re-coating for corrosion resistance may be necessary. Various shapes of high dimensional accuracy can be produced without further processing. Epoxy coating is mostly common used for bonded NdFeB magnets, nickel-plating is also used to prevent corrosion.

The maximum energy product of bonded magnets is advancing every year. The highest maximum energy product of any bonded magnet achieved is 25 MGOe (200 kJ/m3) in the Nd-Fe-B system by d-HDDR treatment. There is a great demand for even higher energy bonded magnets with the desire for smaller, more efficient electric motors. Bonded magnets made from d-HDDR treated anisotropic magnet powder have low squareness due to low squareness of the powder. The authors developed a method to increase squareness of d-HDDR powder, and succeeded in developing the world’s highest energy bonded magnet with 26.6 MGOe (213 kJ/m3). This was achieved through Dy-diffusion treatment followed by d-HDDR treatment, as well as an increase in the density of the bonded magnet. This magnet has little aging loss after being held at 393 K for 878 h.

Magnetic demagnetization curve of Anisotropic bonded magnets

Magnetic demagnetization curve of Anisotropic bonded magnets

Magnetic performance of Anisotropic bonded magnets

Magnetic performance of Anisotropic bonded magnets

MPCO Metrial Br Hcb Hcj (BH)max (BH)max
T kGs kA/m kOe kA/m kOe kJ/M3 MGOe MGOe
3017 0.92-0.93 9.2-9.3 520-540 6.0-7.0 1000-1150 13.5-14.5 135-145 16-17 33-35
3018 0.93-0.95 9.3-9.5 540-588 7.0-7.5 1150-1210 14.5-15.5 145-150 17.18.5 35-37
3019 0.95-1.0 9.5-10.0 588-620 7.5-8.0 1210-1300 15.0-16.0 150-165 18.5-20 37-40
Multipolar Ring Bonded Injection Magnets

Multipolar Ring Bonded Injection Magnets

Multipolar Ring Bonded Injection Magnets, Bonded Ring & Disc Magnets, injection moulded magnet, compression bonded magnet, bonding magnets, multi-pole ring magnets, moulding magnets Bonded Injection Magnets Powder NdFeB, SmCo, Ferrite Shape Ring, Disc Magnetization Direction Thickness or Custom request Plating Epoxy Maximum Operating Temperature 120-180°C Density (g/cm3) 5.6-6.4 Key Benefits High magnetic performance. Maximum Energy […]

Bonded Ring & Disc Magnets

Bonded Ring & Disc Magnets

Bonded Ring & Disc Magnets, injection moulded bonded magnet, compression bonded magnet, multipolar magnets, multi-pole ring magnets, moulding magnets Bonded Ring & Disc Magnets are among the most important magnetic materials currently available on the market. Thermo-elastomers and thermoplastic resins can be mixed with a variety of magnetic powders to form injection moulded, compression bonded […]

Neodymium Radial Anisotropic Ring Magnet

Neodymium Radial Anisotropic Ring Magnet

Neodymium Radial Anisotropic Ring Magnet, Multipole NdFeB Ring Magnet, Permanent Radial Ring Anisotropic Magnet, Black Epoxy Coated multi-pole oriented magnet, Radial anisotropic magnet, Sintered Radial Neodymium Iron Boron, Anisotropic Nd-Fe-B Ring Magnet Neodymium Radial Anisotropic Ring Magnet Feature: Sintered radial neodymium iron boron ring magnets are oriented by radial alignment of powders. It can be […]

Multipole Anisotropic NdFeB Ring Magnet

Multipole Anisotropic NdFeB Ring Magnet

Multipole Anisotropic NdFeB Ring Magnet, Permanent Radial Ring Anisotropic Magnet, Black Epoxy Coated Super Strong Multipole Radial Neodymium Magnets, Radially Oriented NdFeB Ring Magnets, Sintered Radial Neodymium Iron Boron, Anisotropic Nd-Fe-B Ring Magnet Black Epoxy Coated Multipole Anisotropic NdFeB Ring Magnet Feature: Sintered radial neodymium iron boron ring magnets are oriented by radial alignment of […]

Radial Magnetization Ring Magnet Bonded NdFeB

Radial Ring Magnet Bonded NdFeB

Radial Ring Magnet Bonded NdFeB, High Performance Multi-pole Ring Anisotropic Bonded NdFeB, Nylon Polyamide PA and PPS Bonded Magnet, Radially and Multiplar magnetization Ring Bonded NdFeB for Motor Rotor Assemblies Radial Ring Magnet Bonded NdFeB Basic Info: Bonded NdFeB Magnets are manufactured by binding rapid-quenching NdFeB powder. The powder is mixed with resin to form […]

High Performance Multi-pole Ring PA Bonded NdFeB

High Performance Multi-pole Ring PA Bonded NdFeB

High Performance Multi-pole Ring PA Bonded NdFeB, Nylon Polyamide PA and PPS Bonded Magnet, Radial and Multi-pole magnetization Ring Bonded NdFeB for Motor Rotor Assemblies, Compression Bonded NdFeB Anisotropic Magnet with Black or Gray Epoxy Coating High Performance Multi-pole Ring PA Bonded NdFeB Basic Info: Name: Neodymium Bonded NdFeB Ring Magnets Shape: Ring Material: NdFeB […]

Polyphenylene Sulfide PPS NdFeB Multipolar Ring Magnet

Polyphenylene Sulfide PPS NdFeB Multipolar Ring Magnet

Polyphenylene Sulfide PPS NdFeB Multipolar Ring Magnet, Nylon Polyamide PA Bonded Magnet, Radial magnetization and Multi-pole magnetization Ring Bonded NdFeB for Motor Rotor, Compression Bonded NdFeB Multipole Ring Anisotropic Magnet with resin binders Polyphenylene Sulfide PPS NdFeB Multipolar Ring Magnet Basic Info: Name: Neodymium Bonded NdFeB Ring Magnets Shape: Ring Material: NdFeB Technology: Bonded, Precise […]

Multipolar Ring Nylon Polyamide PA Bonded Neodymium Magnet

Multipolar Ring Nylon Polyamide PA Bonded Neodymium Magnet

Multipolar Ring Nylon Polyamide PA Bonded Neodymium Magnet, Multipole Ring Bonded NdFeB for Motor Rotor, polyer binder anisotropic Bonded Neodymium Magnetic Rings, Compression Bonded NdFeB Multipole Ring Multipolar Ring Nylon Polyamide PA Bonded Neodymium Magnet Basic Info: Name: Neodymium Bonded NdFeB Ring Magnets Shape: Ring Material: NdFeB Technology: Bonded, Precise tolerance of dimension, free from […]

Multipole Ring Bonded NdFeB

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Multipole Ring Bonded NdFeB, Precise Motor Rotor ring bonded NdFeB magnets, polyer binder isotropic Neodymium Bonded Ring Magnets, epoxy, Nylon/polyamide (PA), polyphenylene sulfide (PPS) 8-poles 12-poles Compression Bonded NdFeB Multipole Ring Bonded NdFeB Multipole Magnetic Sensor Ring Basic Info: Name: Neodymium Bonded NdFeB Ring Magnets Shape: Ring Material: NdFeB Technology: Bonded, Precise tolerance of dimension, […]

Anisotropic Compression Moulding Bonded Magnets

Anisotropic Compression Moulding Bonded Magnets

Anisotropic Compression Moulding Bonded Magnets, Bonded NdFeB Anisotropic Radial Ring Magnet, Anisotropic Thermo-elastomer & thermo-plastic resin magnets, anisotropic radially unipolar and multipolar ring NdFeB PLASTIC magnets Anisotropic Compression Moulding Bonded Magnets Item No. ABNM-12 Format: Any other dimensions can be supplied to order. The ring is BLACK epoxy coated. Maximum working temperature: 80ºC Observations: This […]

Bonded NdFeB Anisotropic Radial Ring Magnet

Bonded NdFeB Anisotropic Radial Ring Magnet

Bonded NdFeB Anisotropic Radial Ring Magnet, Compression Bonded Anisotropic Magnets, Anisotropic Thermo-elastomer & thermo-plastic resin magnets, Plastic Compression Moulding Bonded Neo Magnets, anisotropic radially unipolar and multipolar ring NdFeB PLASTIC magnets Bonded NdFeB Anisotropic Radial Ring Magnet Item No. ABNM-11 Format: Any other dimensions can be supplied to order. The ring is BLACK epoxy coated. […]

NdFeB Compression Bonded Anisotropic Magnets

NdFeB Compression Bonded Anisotropic Magnets

NdFeB Compression Bonded Anisotropic Magnets, Anisotropic NdFeB Ring Magnets, Plastic Compression Moulding Bonded Neo Magnets, Anisotropic Pressed Plastic Bonded Magnets, anisotropic radially unipolar and multipolar ring NdFeB magnets Ring NdFeB Compression Bonded Anisotropic Magnets Item No. ABNM-10 Format: Any other dimensions can be supplied to order. The ring is gray epoxy coated. Maximum working temperature: […]

Neodymium Anisotropic Bonded Magnets

Neodymium Anisotropic Bonded Magnets

Neodymium Anisotropic Bonded Magnets, Multipolar Anisotropic NdFeB Ring Magnets, Plastic Compression Moulding Bonded Neo Magnets, Anisotropic Pressed Plastic Bonded Magnets, anisotropic NdFeB radially unipolar and multipolar ring magnets Neodymium Anisotropic Bonded Magnets Ring Item No. ABNM-09 Format: Any other dimensions can be supplied to order. The ring is gray epoxy coated. Maximum working temperature: 80ºC […]

Anisotropic Bonded Neo Rings

Anisotropic Bonded Neo Rings

Anisotropic Bonded Neo Rings, Multipolar Anisotropic NdFeB Ring Magnets, Plastic Compression Moulding Bonded Neodymium Magnets, Anisotropic Ring Pressed Plastic Bonded Magnets, anisotropic NdFeB radiation unipolar and multipolar ring magnets Multipolar Anisotropic Bonded Neo Rings Item No. ABNM-08 Format: Any other dimensions can be supplied to order. The ring is gray epoxy coated. Maximum working temperature: […]

Multipolar Anisotropic NdFeB Ring Magnets

Multipolar Anisotropic NdFeB Ring Magnets

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Anisotropic Plastic Bonded Neodymium Magnets

Anisotropic Plastic Bonded Neodymium Magnets

Anisotropic Plastic Bonded Neodymium Magnets, Anisotropic Ring Pressed Bonded Magnets, Bonded NdFeB Radiantion Ring, Plastic Bonded Magnets, anisotropic NdFeB radiation unipolar and multipolar ring magnets Anisotropic Plastic Bonded Neodymium Magnets Item No. ABNM-06 Format: Any other dimensions can be supplied to order. The ring is gray epoxy coated. Maximum working temperature: 80ºC Observations: This manufacturing method […]

Anisotropic Ring Pressed Bonded Magnets

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Anisotropic Bonded NdFeB Radiantion Ring

Anisotropic Bonded NdFeB Radiantion Ring

Anisotropic Bonded NdFeB Radiantion Ring, Plastic Bonded Magnets, Anisotropic Bonded NdFeB Permanent Ring Magnets, Pressed bonded neodymium ring magnets, anisotropic NdFeB radiation (unipolar and multipolar ring) magnets Anisotropic Bonded NdFeB Radiantion Ring Item No. ABNM-04 Format: Any other dimensions can be supplied to order. The ring is black epoxy coated. Maximum working temperature: 80ºC Observations: This manufacturing method […]

Anisotropic Plastic Bonded Magnets

Anisotropic Plastic Bonded Magnets

Anisotropic Plastic Bonded Magnets, Anisotropic Bonded NdFeB Permanent Ring Magnets, Plastic Pressed bonded magnets,  anisotropic NdFeB radiation (unipolar and multistage ring) magnets Anisotropic Plastic Bonded Magnets Item No. ABNM-03 Anisotropic Bonded NdFeB Magnets – Considerations for achieving high degree of alignment in polymer bonded permanent magnets are presented via the results of a study on in situ […]

NdFeB Anisotropic Bonded Magnet

NdFeB Anisotropic Bonded Magnet

NdFeB Anisotropic Bonded Magnet, anisotropic bonded ring neodymium magnets, Compression bonded neodymium magnets, Rere Earth NdFeB anisotropic bonded magnet, polymer bonded permanent magnets China factory NdFeB Anisotropic Bonded Magnet Item No. ABNM-02 Our NdFeB anisotropic bonded magnets have world leading 25MGOe magnetic force and 150 degree heat resistance. The world’s strongest NdFeB magnets were discovered […]

Anisotropic Bonded Neodymium Magnet

Anisotropic Bonded Neodymium Magnet

Anisotropic Bonded Neodymium Magnet, Bonded NIB Magnets, Compression Bonded Anisotropic Neodymium Magnets, Epoxy Binder Anisotropic Bonded Magnets, NdFeB Rare Earth compression bonded Multipole ring magnet China Exporter Anisotropic Bonded Neodymium Magnet Material Technology MPCO discovered the manufacturing principles for anisotropic magnetic powder (d-HDDR method) and brought anisotropic bonded magnets to market. In 2017 we also launched our […]