GB1253115A - - Google Patents
Info
- Publication number
- GB1253115A GB1253115A GB1253115DA GB1253115A GB 1253115 A GB1253115 A GB 1253115A GB 1253115D A GB1253115D A GB 1253115DA GB 1253115 A GB1253115 A GB 1253115A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grooves
- lamination
- face
- oct
- another example
- 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.)
- Expired
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)
- Soft Magnetic Materials (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
Abstract
1,253,115. Making plates and sheets; altering molecular structure. MANNESMANN A.G. 16 Oct., 1969 [17 Oct., 1968], No. 50880/69. Headings B3A and B3V. Power losses in a lamination of a ferromagnetic alloy, e.g. silicon-iron or molybdenumiron, are reduced by forming in at least one face of the recrystallized coarse-grained lamination a plurality of substantially parallel grooves so as to alter the local structure of the crystallites. The spacing between grooves is preferably less than the average size of the orientated grains and may be between 0À1 and 1À0 mm., the grooves having a maximum depth of 40 Î 10<SP>-3</SP> mm., and those on one face may extend in the direction of rolling while those on the opposite face are transverse thereto. A stress-relieving heat treatment at recrystallization temperatures may be given during and/or after the operation of forming the grooves. In an example, a doubleorientated lamination is formed on one side with grooves using a scriber. In another example, the grooves are scribed on both sides and the lamination is annealed at 700‹ C. for 30 minutes after scribing. Emery is used in another example, the lamination being triplescratched on one side and single-scratched on the other.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681804208 DE1804208B1 (en) | 1968-10-17 | 1968-10-17 | Process for reducing the watt losses of grain-oriented electrical steel sheets, in particular of cube-texture sheets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1253115A true GB1253115A (en) | 1971-11-10 |
Family
ID=5711044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1253115D Expired GB1253115A (en) | 1968-10-17 | 1969-10-16 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3647575A (en) |
| JP (1) | JPS5035679B1 (en) |
| DE (1) | DE1804208B1 (en) |
| GB (1) | GB1253115A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2146567A (en) * | 1983-09-14 | 1985-04-24 | British Steel Corp | Production of grain orientated steel |
| AU640532B2 (en) * | 1990-10-15 | 1993-08-26 | Esselte Meto International Produktions Gmbh | Magnetic property modification |
Families Citing this family (48)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5410922B2 (en) * | 1972-12-19 | 1979-05-10 | ||
| JPS5423647B2 (en) * | 1974-04-25 | 1979-08-15 | ||
| JPS50140888U (en) * | 1974-05-08 | 1975-11-20 | ||
| JPS50149482U (en) * | 1974-05-21 | 1975-12-11 | ||
| JPS51128885U (en) * | 1975-03-28 | 1976-10-18 | ||
| JPS5258265U (en) * | 1975-10-25 | 1977-04-27 | ||
| JPS52128559U (en) * | 1976-03-26 | 1977-09-30 | ||
| JPS52147677U (en) * | 1976-05-04 | 1977-11-09 | ||
| JPS52171585U (en) * | 1976-06-17 | 1977-12-27 | ||
| JPS53129116A (en) * | 1977-04-18 | 1978-11-10 | Nippon Steel Corp | Oriented electromagnetic steel sheet with excellent magnetic characteristic s |
| JPS585968B2 (en) * | 1977-05-04 | 1983-02-02 | 新日本製鐵株式会社 | Manufacturing method of ultra-low iron loss unidirectional electrical steel sheet |
| JPS5518566A (en) * | 1978-07-26 | 1980-02-08 | Nippon Steel Corp | Improving method for iron loss characteristic of directional electrical steel sheet |
| US4552596A (en) * | 1978-07-26 | 1985-11-12 | Nippon Steel Corporation | Grain-oriented electromagnetic steel sheet with improved watt loss |
| JPS585970B2 (en) * | 1979-05-16 | 1983-02-02 | 新日本製鐵株式会社 | Method for manufacturing unidirectional silicon steel sheet without linear fine grains |
| GB2062972B (en) * | 1979-10-19 | 1983-08-10 | Nippon Steel Corp | Iron core for electrical machinery and apparatus and well as method for producing the iron core |
| US4363677A (en) * | 1980-01-25 | 1982-12-14 | Nippon Steel Corporation | Method for treating an electromagnetic steel sheet and an electromagnetic steel sheet having marks of laser-beam irradiation on its surface |
| US4322481A (en) * | 1980-02-08 | 1982-03-30 | Westinghouse Electric Corp. | Loss characteristics in amorphous magnetic alloys |
| JPS5850294B2 (en) * | 1980-04-26 | 1983-11-09 | 新日本製鐵株式会社 | Manufacturing method of unidirectional electrical steel sheet with excellent magnetism |
| BE893861A (en) * | 1981-07-17 | 1982-11-16 | Nippon Steel Corp | METHOD AND APPARATUS FOR REDUCING THE ACTIVE LOSS OF AN ELECTROMAGNETIC STEEL SHEET AND SHEET OBTAINED |
| JPS6056404B2 (en) * | 1981-07-17 | 1985-12-10 | 新日本製鐵株式会社 | Method and device for reducing iron loss in grain-oriented electrical steel sheets |
| CA1197759A (en) * | 1982-07-19 | 1985-12-10 | Robert F. Miller | Method for producing cube-on-edge silicon steel |
| US4482401A (en) * | 1982-07-19 | 1984-11-13 | Allegheny Ludlum Steel Corporation | Method for producing cube-on-edge oriented silicon steel |
| US4548655A (en) * | 1982-07-19 | 1985-10-22 | Allegheny Ludlum Steel Corporation | Method for producing cube-on-edge oriented silicon steel |
| US4456812A (en) * | 1982-07-30 | 1984-06-26 | Armco Inc. | Laser treatment of electrical steel |
| US4645547A (en) * | 1982-10-20 | 1987-02-24 | Westinghouse Electric Corp. | Loss ferromagnetic materials and methods of improvement |
| US4535218A (en) * | 1982-10-20 | 1985-08-13 | Westinghouse Electric Corp. | Laser scribing apparatus and process for using |
| JPS60100622U (en) * | 1983-12-15 | 1985-07-09 | 株式会社リコー | Powder level detection device |
| US4724015A (en) * | 1984-05-04 | 1988-02-09 | Nippon Steel Corporation | Method for improving the magnetic properties of Fe-based amorphous-alloy thin strip |
| JPS61117218A (en) * | 1984-11-10 | 1986-06-04 | Nippon Steel Corp | Manufacture of grain oriented magnetic steel sheet of low iron loss |
| US4533409A (en) * | 1984-12-19 | 1985-08-06 | Allegheny Ludlum Steel Corporation | Method and apparatus for reducing core losses of grain-oriented silicon steel |
| US4711113A (en) * | 1984-12-19 | 1987-12-08 | Allegheny Ludlum Corporation | Apparatus for reducing core losses of grain-oriented silicon steel |
| US4680062A (en) * | 1985-12-02 | 1987-07-14 | Allegheny Ludlum Corporation | Method for reducing core losses of grain-oriented silicon steel using liquid jet scribing |
| US4737203A (en) * | 1985-12-02 | 1988-04-12 | Allegheny Ludlum Corporation | Method for reducing core losses of grain-oriented silicon steel using liquid jet scribing |
| JPH0615694B2 (en) * | 1987-04-17 | 1994-03-02 | 川崎製鉄株式会社 | Iron loss reduction method for grain-oriented silicon steel sheet |
| IN171546B (en) * | 1988-03-25 | 1992-11-14 | Armco Advanced Materials | |
| US5067992A (en) * | 1988-10-14 | 1991-11-26 | Abb Power T & D Company, Inc. | Drilling of steel sheet |
| US5089062A (en) * | 1988-10-14 | 1992-02-18 | Abb Power T&D Company, Inc. | Drilling of steel sheet |
| US4963199A (en) * | 1988-10-14 | 1990-10-16 | Abb Power T&D Company, Inc. | Drilling of steel sheet |
| US4964922A (en) * | 1989-07-19 | 1990-10-23 | Allegheny Ludlum Corporation | Method for domain refinement of oriented silicon steel by low pressure abrasion scribing |
| US5078811A (en) * | 1989-09-29 | 1992-01-07 | Allegheny Ludlum Corporation | Method for magnetic domain refining of oriented silicon steel |
| JPH0686633B2 (en) * | 1989-10-14 | 1994-11-02 | 新日本製鐵株式会社 | Method for manufacturing wound core with low iron loss |
| KR960006448B1 (en) * | 1992-08-05 | 1996-05-16 | 가와사끼 세이데쓰 가부시끼가이샤 | Method of manufacturing low iron loss grain oriented electromagnetic steel |
| US5350464A (en) * | 1992-11-17 | 1994-09-27 | Allegheny Ludlum Corporation | Silicon steel strip having mechanically refined magnetic domain wall spacings and method for producing the same |
| TWI305548B (en) * | 2005-05-09 | 2009-01-21 | Nippon Steel Corp | Low core loss grain-oriented electrical steel sheet and method for producing the same |
| DE102011000712A1 (en) | 2011-02-14 | 2012-08-16 | Thyssenkrupp Electrical Steel Gmbh | Method for producing a grain-oriented flat steel product |
| KR101673828B1 (en) * | 2012-10-30 | 2016-11-07 | 제이에프이 스틸 가부시키가이샤 | Method of manufacturing grain-oriented electrical steel sheet exhibiting low iron loss |
| BR112016030522B1 (en) * | 2014-07-03 | 2019-11-05 | Nippon Steel & Sumitomo Metal Corp | laser processing apparatus |
| KR102010166B1 (en) | 2015-04-20 | 2019-08-12 | 닛폰세이테츠 가부시키가이샤 | Directional electromagnetic steel plate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE626673C (en) * | 1932-02-13 | 1936-07-01 | Hoesch Koeln Neuessen Akt Ges | Process and device for the production of coarse-grained, recrystallized strips or sheets |
-
1968
- 1968-10-17 DE DE19681804208 patent/DE1804208B1/en not_active Withdrawn
-
1969
- 1969-09-26 JP JP44076327A patent/JPS5035679B1/ja active Pending
- 1969-10-16 GB GB1253115D patent/GB1253115A/en not_active Expired
- 1969-10-17 US US867406A patent/US3647575A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2146567A (en) * | 1983-09-14 | 1985-04-24 | British Steel Corp | Production of grain orientated steel |
| AU640532B2 (en) * | 1990-10-15 | 1993-08-26 | Esselte Meto International Produktions Gmbh | Magnetic property modification |
| US5455563A (en) * | 1990-10-15 | 1995-10-03 | Esselte Meto International Produktions Gmbh | Magnetic marker and method for modifying the magnetic properties thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1804208B1 (en) | 1970-11-12 |
| US3647575A (en) | 1972-03-07 |
| JPS5035679B1 (en) | 1975-11-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |