Patent ID: 6464934
Filing Date: 2002-10-15
Classification: H01F

Abstract:
A method for manufacturing a permanent magnet, comprising the steps of:a1) mixing a powder of a magnetic base alloy of a general formula SE2T14B, â€ƒwherein SE is at least one rare earth element, including Y, and T is selected from the group consisting of Fe and a combination of Fe and Co, whereby the Co part does not exceed 40 weight % of the combination of Fe and Co, a2) and powders of at least two binder alloys of respective general formulas SE6(Fe, Co)13âˆ’xGa1+x â€ƒand SE2Co3 â€ƒwherein 0&lE;x&lE;2, in a weight ratio to obtain a mixture between 99:1 to 89:11; b) comprising the mixture to obtain a compressed mixture and; c) sintering the compressed mixture in an environment selected from the group consisting of a vacuum and an inert gas atmosphere.