ATE120242T1 - STEEL SHEET FOR ELECTRICAL USES. - Google Patents
STEEL SHEET FOR ELECTRICAL USES.Info
- Publication number
- ATE120242T1 ATE120242T1 AT91470036T AT91470036T ATE120242T1 AT E120242 T1 ATE120242 T1 AT E120242T1 AT 91470036 T AT91470036 T AT 91470036T AT 91470036 T AT91470036 T AT 91470036T AT E120242 T1 ATE120242 T1 AT E120242T1
- Authority
- AT
- Austria
- Prior art keywords
- weight
- steel sheet
- sheets
- silicon
- steel
- Prior art date
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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties characterised by the heat treatment
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Soft Magnetic Materials (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Laminated Bodies (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
Steel sheet for electrical application, of the type containing less than 0.005 % by weight of carbon, 0.1 to 0.7 % by weight of manganese and at least 0.2 % by weight of silicon, characterised in that it is manufactured as follows: - a steel whose carbon content is already lower than 0.005 % by weight and in which the sum of the contents of phosphorus and silicon is between 0.420 and 0.570 % by weight is produced, cast and rolled when hot and then when cold into the form of sheets; - the said sheets are then subjected to a continuous tempering treatment under neutral atmosphere at a temperature taken from the range approximately from 800 to 900 DEG C, and so as to remain below the alpha -> gamma transformation point of the steel type treated.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9014699A FR2669349B1 (en) | 1990-11-19 | 1990-11-19 | METHOD FOR MANUFACTURING STEEL SHEETS FOR ELECTRIC USE, AND SHEET OBTAINED BY THIS PROCESS. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE120242T1 true ATE120242T1 (en) | 1995-04-15 |
Family
ID=9402561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT91470036T ATE120242T1 (en) | 1990-11-19 | 1991-11-18 | STEEL SHEET FOR ELECTRICAL USES. |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0487443B1 (en) |
| AT (1) | ATE120242T1 (en) |
| DE (1) | DE69108359D1 (en) |
| FR (1) | FR2669349B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2757541B1 (en) * | 1996-12-19 | 1999-01-22 | Lorraine Laminage | MAGNETIC STEEL SHEET WITH NON-ORIENTED GRAINS |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1382885A (en) * | 1963-02-26 | 1964-12-18 | United States Steel Corp | Production process of a steel sheet for electrical construction |
| FR1437673A (en) * | 1965-03-26 | 1966-05-06 | Loire Atel Forges | Method of manufacturing steel products for magnetic uses without preferential crystalline orientation |
| DE1931420B1 (en) * | 1969-06-20 | 1971-04-22 | Hoesch Ag | Use of a steel that has been vacuum-treated in the liquid state as a dynamo tape |
| US3867211A (en) * | 1973-08-16 | 1975-02-18 | Armco Steel Corp | Low-oxygen, silicon-bearing lamination steel |
| JPS58117828A (en) * | 1981-12-28 | 1983-07-13 | Nippon Steel Corp | Production of semi-process nondirectional electrical sheet having low iron loss and high magnetic flux density |
| JPS6383226A (en) * | 1986-09-29 | 1988-04-13 | Nkk Corp | Grain oriented electrical steel sheet having extremely uniform sheet thickness accuracy and magnetic characteristic nd its production |
-
1990
- 1990-11-19 FR FR9014699A patent/FR2669349B1/en not_active Expired - Fee Related
-
1991
- 1991-11-18 AT AT91470036T patent/ATE120242T1/en not_active IP Right Cessation
- 1991-11-18 EP EP91470036A patent/EP0487443B1/en not_active Expired - Lifetime
- 1991-11-18 DE DE69108359T patent/DE69108359D1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2669349A1 (en) | 1992-05-22 |
| FR2669349B1 (en) | 1993-12-31 |
| EP0487443A1 (en) | 1992-05-27 |
| EP0487443B1 (en) | 1995-03-22 |
| DE69108359D1 (en) | 1995-04-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |