Amorphous alloy powder and preparation method thereof

An amorphous alloy, iron-based amorphous alloy technology, applied in the direction of magnetic materials, magnetic objects, electrical components, etc., can solve problems such as unfavorable preparation performance magnetic powder core, achieve crystallization transformation and uniform stress release, particle size optimization, The effect of uniform length and width of particles
CN106158221AActive Publication Date: 2016-11-23张听
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
张听
Publication Date
2016-11-23

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Abstract

The invention belongs to the field of metal matrix soft magnetic compound materials. The preparation method comprises the following steps: carrying out breaking processing on an amorphous alloy ribbon to obtain fragments; under inert atmosphere, carrying out heat treatment on the fragments, and continuously stirring the fragments in a heat treatment process; and carrying out grinding processing on the fragments subjected to the heat treatment to obtain amorphous alloy powder. The preparation method has the advantages of being high in production efficiency, low in rejection rate and low in production cost and can realize large-scale industrialized application. The prepared amorphous alloy powder has the advantages of smooth edge, no acute angles and even particle length and width, can be largely used in electronic devices which have high-frequency low-loss application requirements, and especially can be largely used for air gap type soft magnetic powder core raw materials.
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Description

technical field

[0001] The invention belongs to the field of metal-based soft magnetic composite materials, and in particular relates to an amorphous alloy powder with smooth edges and a preparation method thereof. Background technique

[0002] Amorphous alloy is a kind of soft magnetic alloy material with excellent performance. It has the advantages of high resistance, high saturation magnetic flux density, high magnetic permeability, low loss and low price. The amorphous alloy thin strip prepared by rapid quenching and quenching process Has been widely used in power frequency transformer core. However, as the operating frequency increases, the eddy current loss of the amorphous alloy thin strip will also increase. Therefore, it has become an urgent need in the field of soft magnetic alloys to develop amorphous alloy magnetic powder cores at medium and high frequencies by referring to powder metallurgy and composite material forming processes.

[0003] By powdering the am...

Claims

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