Manufacturing Process Steps of Neodymium Magnets
Step #1 Strip Casting
Alloyed NdFeB is now ready for melting and strip casting. It is heated in a vacuum furnace and a stream of molten metal is forced under pressure onto a cooled drum where it is rapidly cooled at approximately 100,000 degrees-per-second. The high cooling rate produces very small grains of metal that help simplify and enhance the effect of the downstream processing. Also, small grains are an important part of producing high-quality magnets.

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