JPS57198217A - Magnetic characteristic improvidng method of directional electrical sheet - Google Patents
Magnetic characteristic improvidng method of directional electrical sheetInfo
- Publication number
- JPS57198217A JPS57198217A JP56079386A JP7938681A JPS57198217A JP S57198217 A JPS57198217 A JP S57198217A JP 56079386 A JP56079386 A JP 56079386A JP 7938681 A JP7938681 A JP 7938681A JP S57198217 A JPS57198217 A JP S57198217A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- discharge
- rolling direction
- mark
- electrical sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1294—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a localized treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Soft Magnetic Materials (AREA)
Abstract
PURPOSE:To remarkably reduce an iron loss of a directional electrical sheet, by generating an irradiation mark by a laser and a discharge mark by discharge in the direction meeting at right angles to the rolling direction and in the rolling direction, respectively, on the surface of the electrical sheet. CONSTITUTION:On the surface of a finish-annealed directional electrical sheet 4, a laser beam 2 is irradiated from a laser source 1, making it scan at right angles to the rolling direction of the sheet 4, and as the sheet 4 moves in the direction as indicated with an arrow, a laser irradiation mark 5 is provided. On the other hand, intermittent or continuous discharge is executed between discharge electrodes 3 provided at prescribed intervals in the width direction and the steel plate 4, and a discharge mark 6 is provided. In this way, when the laser beam irradiation mark 5 is provided in the direction meeting at right angles to the rolling direction of the sheet 4, on the surface of the sheet 4, an iron loss characteristic of the sheet 4 in the rolling direction is elevated, and an iron loss characteristic of the sheet 4 in the width direction is elevated by the discharge mark 6 provided in the rolling direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56079386A JPS57198217A (en) | 1981-05-27 | 1981-05-27 | Magnetic characteristic improvidng method of directional electrical sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56079386A JPS57198217A (en) | 1981-05-27 | 1981-05-27 | Magnetic characteristic improvidng method of directional electrical sheet |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57198217A true JPS57198217A (en) | 1982-12-04 |
Family
ID=13688421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56079386A Pending JPS57198217A (en) | 1981-05-27 | 1981-05-27 | Magnetic characteristic improvidng method of directional electrical sheet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57198217A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0137747A2 (en) * | 1983-09-14 | 1985-04-17 | British Steel plc | Improvements in or relating to the production of grain oriented steel |
US4931613A (en) * | 1987-05-08 | 1990-06-05 | Allegheny Ludlum Corporation | Electrical discharge scribing for improving core loss of grain-oriented silicon steel |
JP2008057001A (en) * | 2006-08-31 | 2008-03-13 | Jfe Steel Kk | Grain-oriented electromagnetic steel sheet |
WO2010147009A1 (en) * | 2009-06-19 | 2010-12-23 | 新日本製鐵株式会社 | Unidirectional electromagnetic steel sheet and method for producing same |
JP2015106631A (en) * | 2013-11-29 | 2015-06-08 | 東芝産業機器システム株式会社 | Vector magnetic characteristic controlled material and iron core |
-
1981
- 1981-05-27 JP JP56079386A patent/JPS57198217A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0137747A2 (en) * | 1983-09-14 | 1985-04-17 | British Steel plc | Improvements in or relating to the production of grain oriented steel |
US4931613A (en) * | 1987-05-08 | 1990-06-05 | Allegheny Ludlum Corporation | Electrical discharge scribing for improving core loss of grain-oriented silicon steel |
JP2008057001A (en) * | 2006-08-31 | 2008-03-13 | Jfe Steel Kk | Grain-oriented electromagnetic steel sheet |
WO2010147009A1 (en) * | 2009-06-19 | 2010-12-23 | 新日本製鐵株式会社 | Unidirectional electromagnetic steel sheet and method for producing same |
JP2015106631A (en) * | 2013-11-29 | 2015-06-08 | 東芝産業機器システム株式会社 | Vector magnetic characteristic controlled material and iron core |
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