Sintered NdFeB Magnets

Coming out in early 1980s, NdFeB permanent magnetic material is now widely applied in information industry, defense industry, automobile industry, wind power home appliance, instruments and apparatus, medical equipment, and magnetic instruments, etc.. Its main constituent is Nd2Fe14B, which has high magnetic performance. Its maximum energy density(BHmax) is over 10 times as high as that of ferrite magnet; maximum working temperature up to 250 centigrade. Also, it has good mechanical behavior, which makes it suitable for different processing modes, such as grinding, wire cutting, drilling, etc. Due to its poor performance in anti-corrosion, it must be treated with different coatings tailored to specific need (eg, Zn, Ni, Au, Epoxy, etc.).

1. Neodymium Iron Boron Magnets: Neodymium iron boron (NdFeB) is currently the magnet with the highest commercialized performance, often referred to as the “king of magnets,” possessing extremely high magnetic properties with a maximum energy product (BHmax) over ten times that of ferrite. It has excellent machinability and can operate at temperatures up to 220 degrees Celsius. Its hard texture, stable performance, and good cost-effectiveness make it widely applicable. However, due to its strong chemical reactivity, surface coating treatment (such as zinc plating, nickel plating, electrophoresis, passivation, etc.) is necessary.

Product Characteristics: NdFeB permanent magnetic materials are based on the intermetallic compound Nd2Fe14B. NdFeB magnets have high magnetic energy product and coercivity, and their high energy density advantages make them widely used in modern industry and electronic technology, enabling miniaturization, lightening, and thinning of instruments, electroacoustic motors, and magnetic separation and magnetization equipment.

Material Features: The advantages of NdFeB are high cost-effectiveness and good machinability; however, its drawbacks include low Curie temperature, poor temperature characteristics, and susceptibility to powder corrosion. These drawbacks can be improved by adjusting its chemical composition and adopting surface treatment methods to meet practical application requirements.

Manufacturing Process: NdFeB is manufactured using powder metallurgy processes.

2. Shapes: Round, ring, square, tile, irregular, etc., can be customized according to drawings and requirements.

3. Dimensions: Variable dimensions available, customizable according to customer requirements.

4. Operating Temperature: ≤220°C.

5. Grades: N33-N52, N35M-N48M, N33H-N48H, N33SH-N45SH, N30UH-N42UH, N30EH-N38EH.

6. Surface Treatment: Phosphating, blue-white zinc plating, color zinc plating, nickel-copper-nickel plating, black nickel plating, gold plating, chromium plating, black epoxy coating, etc.

7. Packaging: Standard sea or air transportation packaging, customizable according to customer requirements.

8. Delivery Time: Generally 7-20 days, specific timeframe subject to mutual agreement based on quantity and process.

9. Application Fields: Sensors, motors, wind turbines, speakers, electronic products, toy products, gift packaging, instruments, automotive parts, filters, etc.

10. Instructions for Use: (1) Products are fragile and should be handled with care to avoid impact or collision. (2) The products have strong magnetic properties, so safety precautions should be taken during use, and they should be kept away from electronic products. (3) When using the product, push it parallel with the hand or related equipment (on a plane perpendicular to the magnetization direction).

The physical properties of a material are directly related to its grade. Particularly, magnetics-related parameters vary greatly from Series N to Series TH. Other parameters related to electricity, mechanics, and thermology have slight difference from grade to grade.

· Customized is Available

· Affordable price

· Quality guaranteed

· T/T and XTranfer accepted

· Other payment accepted

· Fast shipping, Worldwide delivery

· excellent customer service

· Offer free magnetic solution

· Bulk discounts for larger orders

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