Non-oriented silicon steel and its manufacturing method

A technology of oriented silicon steel and manufacturing method, applied in the direction of inorganic material magnetism, magnetic objects, magnetic materials, etc., to achieve the effect of improving grain shape, high magnetic permeability, and low iron loss
CN103361544BActive Publication Date: 2015-09-23BAOSHAN IRON & STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BAOSHAN IRON & STEEL CO LTD
Publication Date
2015-09-23

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Abstract

An unoriented silicion steel having high magnetic conductivity and low iron loss at a working magnetic density of 1.0-1.5 T and method for manufacturing same. By proper deoxidation control in a RH refining and high-temperature treatment for a short time in a normalizing step, the method can reduce the amount of inclusions in the silicon steel and improve grain shape, so as to improve the magnetic conductivity and iron loss of the unoriented silicon steel at a magenetic density of 1.0-1.5 T.
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Description

technical field

[0001] The invention relates to a non-oriented silicon steel and a manufacturing method thereof, in particular to a non-oriented silicon steel with higher magnetic permeability and lower iron loss at a working magnetic density of 1.0-1.5T and a manufacturing method thereof. Background technique

[0002] Non-oriented silicon steel with high magnetic permeability and low iron loss can be widely used as iron core in rotating machines such as compressor motors, electric vehicle motors and small precision motors, and can also be widely used in static devices such as small power transformers and voltage stabilizers middle. In recent years, as people's demand for portability has increased and non-renewable energy sources such as coal and oil have gradually decreased, electronic equipment has been required to be miniaturized and energy-saving. As far as the miniaturization of electronic equipment is concerned, the non-oriented silicon steel used is required to have ...

Claims

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