Japan, Sept. 16 -- PROTERIAL LTD has got intellectual property rights for 'METHOD OF PRODUCING R-T-B SINTERED MAGNET.' Other related details are as follows:
Application Number: JP,2022-154943
Category (FI): B22F1/14,100,B22F9/04@E,B22F1/14,500,B22F3/00@F,B22F1/00@Y,H01F1/057,170,H01F41/02@G,C22C38/00,303@D,B22F9/04@D
Stage: PROBLEM TO BE SOLVED: To enable an appropriate use of solid recycled raw materials recovered during a manufacturing process.SOLUTION: A method of producing R-T-B sintered magnet includes: an alloy preparation step of preparing a raw material alloy for an R-T-B sintered magnet; a crushing step of producing alloy powder from the raw material alloy; a molding step of producing a powder compact from the alloy powder; and a sintering step of producing a sintered body from the powder compact. In the method, depending on a type of solid recycled raw materials recovered during a manufacturing process including the crushing step, the molding step and the sintering step and target oxygen concentration of an R-T-B sintered magnet to be produced, the raw material alloy produced using the solid recycled raw materials and/or the alloy powder mixed with remilled powder produced from the solid recycled raw materials is used.SELECTED DRAWING: Figure 1 (Grant)
Filing Date: Sept. 28, 2022
Publication Date: April 9, 2024
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
