Preparation method of flat soft magnetic alloy powder

The invention discloses a preparation method of flat soft magnetic alloy powder. The preparation method is characterized by comprising the steps of: (1) material selection; (2) first-grade grinding; (3) second-grade grinding: an elliptic steel section is selected as a ball milling medium; circular c...

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Bibliographic Details
Main Authors Hao Bin, Liu Lidong, Ye Yiting
Format Patent
LanguageChinese
English
Published 10.08.2016
Subjects
BASIC ELECTRIC ELEMENTS
CASTING
ELECTRICITY
INDUCTANCES
MAGNETS
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
PERFORMING OPERATIONS
POWDER METALLURGY
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
TRANSPORTING
WORKING METALLIC POWDER
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Summary:The invention discloses a preparation method of flat soft magnetic alloy powder. The preparation method is characterized by comprising the steps of: (1) material selection; (2) first-grade grinding; (3) second-grade grinding: an elliptic steel section is selected as a ball milling medium; circular cake-shaped FeSiAl magnetic powder of 2-4 microns, solvent and a dispersing agent, obtained through first-grade grinding, are mixed in a rolling ball mill; the ball-material ratio is (20: 1)-(40: 1); the dispersing agent is not more than 1% of magnetic powder by mass; the ball milling is performed for the magnetic powder to reach a thickness of 0.5-1 micron and a radial size of 80-120 microns with a rotating speed of lower than 100 r/min of the ball mill; and the magnetic powder is discharged and dried, and is annealed at 850 DEG C with argon or hydrogen as protective atmosphere to eliminate the stress; and (4) wind separation screening. The preparation method has such characteristics as capability of improving the
Bibliography:Application Number: CN20161407411