US Patent 7377985 Temper process of sintered Nd-Fe-B permanent magnet
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Patent abstract
The present invention provides a tempering process for sintered Nd—Fe—B permanent magnet material, which optimizes the microstructure of the Nd—Fe—B magnet and improves intrinsic coercive force and its consistency by increasing the cooling rate after tempering. After heating to a temper temperature, the magnetic material is cooled in a cooling liquid within a cooling chamber into which a pressurized cooling gas is introduced.
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US Patent 07377985 Temper process of sintered Nd-Fe-B permanent magnet US Patent 7377985 Temper process of sintered Nd-Fe-B permanent magnet
Infobox
Patent Number
0737798500
Patent Number
737798500
Edits on 3 Apr, 2023
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Infobox
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Patent Jurisdiction
Patent Number
073779850
Date of Patent
May 27, 2008
0Patent Application Number
112989670
Date Filed
December 9, 2005
0Official Website
Patent Primary Examiner
Edits on 26 Sep, 2022
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Infobox
Is a
Patent Jurisdiction
Patent Number
073779850
Date of Patent
May 27, 2008
0Patent Application Number
112989670
Date Filed
December 9, 2005
0Official Website
Patent Primary Examiner
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US Patent 07377985 Temper process of sintered Nd-Fe-B permanent magnet
Infobox
Is a
Patent jurisdiction
Patent number
07377985
Date of patent
May 27, 2008
Patent application number
11298967
Date Filed
December 9, 2005
Patent primary examiner
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