Heat-resistant magnetic domain refined-type oriented silicon steel and manufacturing method thereof

A technology of magnetic domain refinement and oriented silicon steel, which is used in the manufacture of inductors/transformers/magnets, manufacturing tools, magnetic objects, etc., which can solve the problem of the reduction of the lamination coefficient of silicon steel sheets, the difficulty in obtaining oriented silicon steel sheets, and the conduction between transformer sheets, etc. question
CN110323044AActive Publication Date: 2019-10-11BAOSHAN IRON & STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BAOSHAN IRON & STEEL CO LTD
Publication Date
2019-10-11

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Abstract

The invention discloses a heat-resistant magnetic domain refined-type oriented silicon steel. A plurality of parallel grooves formed in a nicking mode are formed in a single-face surface or a double-face surface of the heat-resistant magnetic domain refined-type oriented silicon steel, wherein each groove extends in the width direction of the heat-resistant magnetic domain refined-type oriented silicon steel, and the parallel grooves are evenly distributed in the rolling direction of the heat-resistant magnetic domain refined-type oriented silicon steel. Each groove extending in the width direction of the heat-resistant magnetic domain refined-type oriented silicon steel is formed by splicing a plurality of sub-grooves extending in the width direction of the heat-resistant magnetic domainrefined-type oriented silicon steel. The invention further discloses a manufacturing method of the heat-resistant magnetic domain refined-type oriented silicon steel. The method comprises the steps: forming the grooves in the single-face surface or the double-face surface of the heat-resistant magnetic domain refined-type oriented silicon steel in a laser nicking mode, and dividing a laser beam ofthe laser nicking into a plurality of sub-beams by an optical splitter, wherein the sub-beams form the sub-grooves spliced into the same groove.
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Description

technical field

[0001] The invention relates to a grain-oriented silicon steel and a manufacturing method thereof, in particular to a magnetic domain refinement type grain-oriented silicon steel and a manufacturing method thereof. Background technique

[0002] A transformer is a basic component in a power transmission system. Its core is usually made of oriented silicon steel laminated or wound. The core loss is usually referred to as iron loss for short. Due to the increasingly prominent global energy and environmental problems, the demand for energy saving and consumption reduction is increasing worldwide. Reducing the iron loss of oriented silicon steel is of great significance to the national economy and social environmental protection.

[0003] Refining the magnetic domain, that is, reducing the width of the magnetic domain, can effectively reduce the abnormal eddy current loss, and is an important method to reduce the loss of oriented silicon steel. In the prior art, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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