Method for preparing iron-nickel magnetic core with high magnetic permeability

The invention relates to the technical field of magnetic materials, and particularly relates to a method for preparing an iron-nickel magnetic core with high magnetic permeability. The method comprises the following steps of (1), using an iron-nickel alloy to prepare iron-nickel powder by adopting a...

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Bibliographic Details
Main Author TONG YILONG
Format Patent
LanguageChinese
English
Published 29.06.2018
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 relates to the technical field of magnetic materials, and particularly relates to a method for preparing an iron-nickel magnetic core with high magnetic permeability. The method comprises the following steps of (1), using an iron-nickel alloy to prepare iron-nickel powder by adopting a non-vacuum gas atomization method; (2), conducting particle size combination; (3), conducting primary insulation coating; (4), conducting annealing treatment; (5), conducting secondary insulation coating; (6), pressing into an iron-nickel magnetic core; (7), conducting annealing heat treatment; (8), spraying epoxy resin paint to obtain the iron-nickel magnetic core finished product with high magnetic permeability. The method has a simple process and adopts the non-vacuum gas atomized iron-nickel magnetic powder without a hydrogen reduction process, the cost of powder preparation is effectively reduced, the magnetic permeability, superposition loss and the like of the prepared iron-nickel magnetic core finished pro
Bibliography:Application Number: CN201711328854