Composite electrical steel material

Abstract

The invention discloses a composite electrical steel material which is characterized by comprising two magnetic materials, namely an amorphous soft magnetic alloy material and an electrical steel base material, wherein the amorphous soft magnetic alloy material is compounded to two surfaces or one surface of the electrical steel base material; and the amorphous soft magnetic alloy material is metal glass. According to the composite electrical steel material, the amorphous soft magnetic alloy material and the electrical steel base material are compounded; due to high insulativity and high rust resistance of the layered amorphous soft magnetic alloy material, the insulation and rust resistance functions of an organic, inorganic or semiorganic coating layer coated on the surface of the conventional electrical steel material are replaced, so that the material completely gets rid of the problem of low environment friendliness during production, coating and use of an organic and/or inorganic insulative coating; furthermore, since the amorphous soft magnetic alloy material has high magnetic performance, the ineffective volume of the conventional insulative coating layer is eliminated, the stacking coefficient of the material is effectively increased; and the magnetic performance of the material is greatly improved.

Description

Technical field: [0001] The invention belongs to alloy materials, in particular to a composite electrical steel material. Background technique: [0002] Electrical steel is mainly used as the iron core of various motors and transformers. It is an indispensable and important soft magnetic alloy in the electric power, electronics and military industries, and is an important metal functional material for energy saving. The improvement of the magnetic properties of electrical steel plays a key role in ensuring the stable and safe operation of the motor and improving the efficiency of energy utilization. [0003] The surface of traditional electrical steel materials is coated with organic, inorganic or semi-organic insulating coatings, so that the electrical steel materials can achieve interlayer insulation, reduce the eddy current loss of the stacked iron core under working conditions, and at the same time play a role in corrosion resistance. However, the organic and / or inorga...

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Problems solved by technology

However, the organic and / or inorganic insulating coatings coated on electrical steel inevitably have different degrees of environmental protection problems in the process of production, coating and use; at the same time, because traditional insulating coatings have no magnetic conductivity, they have The magnetic performance of the core has no contribution, which reduces the lamination coefficient of the invented material and affects the energy utilization efficiency of the motor

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