What is the raw material of NdFeB?

The raw materials of NdFeB (Neodymium Iron Boron) magnets primarily consist of the following key elements and compounds:

Neodymium (Nd) – A rare-earth element that provides high magnetic strength.

Iron (Fe) – The main ferromagnetic component, forming the bulk of the alloy.

Boron (B) – Enhances the magnet’s coercivity (resistance to demagnetization).

Other additives – Small amounts of dysprosium (Dy), praseodymium (Pr), terbium (Tb), or cobalt (Co) may be added to improve temperature stability and corrosion resistance.

Production Process Overview:

Alloy Melting – The raw materials are melted in a vacuum or inert atmosphere to form an alloy.

Powder Milling – The alloy is crushed into fine powder.

Pressing & Sintering – The powder is compacted under a magnetic field and sintered at high temperatures.

Machining & Coating – The magnets are shaped and coated (e.g., nickel, zinc, or epoxy) to prevent corrosion.

NdFeB magnets are the strongest permanent magnets commercially available, widely used in motors, wind turbines, hard drives, and medical devices.

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