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Non-oriented electromagnetic steel sheet

An electromagnetic steel plate, non-directional technology, applied in the direction of inorganic materials, circuits, magnetic objects, etc., can solve the problems of insufficient magnetic properties, difficult to obtain magnetic properties, etc., and achieve excellent magnetic properties and suitable crystal particle size Effect

Active Publication Date: 2019-12-13
NIPPON STEEL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Various technologies have been proposed so far, but it is difficult to obtain sufficient magnetic properties in all directions within the board surface
For example, even if sufficient magnetic properties are obtained in a certain direction within the board surface, sufficient magnetic properties may not be obtained in other directions

Method used

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  • Non-oriented electromagnetic steel sheet
  • Non-oriented electromagnetic steel sheet
  • Non-oriented electromagnetic steel sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0089] Next, the non-oriented electrical steel sheet according to the embodiment of the present invention will be described in detail while showing examples. The examples shown below are only an example of the non-oriented electrical steel sheet of the embodiment of the present invention, and the non-oriented electrical steel sheet of the present invention is not limited to the following examples.

[0090] (First test)

[0091] In the first test, molten steel having the chemical composition shown in Table 1 was cast to produce a slab, and the slab was hot rolled to obtain a steel strip. The empty column in Table 1 indicates that the content of this element is below the detection limit, and the remainder is Fe and impurities. The underline in Table 1 indicates that the value deviates from the scope of the present invention. Next, cold rolling and final annealing of the steel strip were performed to produce various non-oriented electrical steel sheets. Then, the ratio R of the tot...

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PUM

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Abstract

When [Si] represents the Si content (mass%), [Al] represents the Al content (mass%), and [Mn] represents the Mn content (mass%), parameter Q represented by "Q=[Si]+2[Al]-[Mn]" is 2.00 or higher. The total mass of S included in sulfides and oxysulfides of Mg, Ca, Sr, Ba, Ce, La, Nd, Pr, Zn, and Cd is at least 40% of the total mass of S included in the non-oriented electromagnetic steel sheet. The {100} crystal orientation intensity is 3.0 or higher. The thickness is 0.15-0.30 mm. The average crystal grain size is 65-100 [mu]m.

Description

Technical field [0001] The present invention relates to a non-oriented electrical steel sheet. Background technique [0002] Non-oriented electrical steel sheets are used, for example, in the iron cores of engines. For non-oriented electrical steel sheets, excellent magnetic properties are required in all directions parallel to the plate surface (hereinafter, sometimes referred to as "all directions within the plate surface"). Low iron loss and high magnetic flux density. Various technologies have been proposed so far, but it is difficult to obtain sufficient magnetic properties in all directions within the plate surface. For example, even if sufficient magnetic properties are obtained in a certain direction within the plate surface, there is a possibility that sufficient magnetic properties may not be obtained in other directions. [0003] Prior art literature [0004] Patent literature [0005] Patent Document 1: Japanese Patent Laid-Open No. 3-126845 [0006] Patent Document 2: J...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/00C21D8/12C21D9/46C22C38/38H01F1/147
CPCC21D9/46C22C38/38C21D8/1211C21D8/1222C21D8/1233C21D8/1272C22C38/002C22C38/004C22C38/005C22C38/008C22C38/02C22C38/04C22C38/06C22C38/18C22C38/16B22D11/001H01F1/14791H01F1/16C21D8/12H01F1/147C22C38/34
Inventor 久保田猛诸星隆宫崎雅文
Owner NIPPON STEEL CORP