GB2001558A - Production of electrical steel sheets and strips - Google Patents
Production of electrical steel sheets and stripsInfo
- Publication number
- GB2001558A GB2001558A GB787829734A GB7829734A GB2001558A GB 2001558 A GB2001558 A GB 2001558A GB 787829734 A GB787829734 A GB 787829734A GB 7829734 A GB7829734 A GB 7829734A GB 2001558 A GB2001558 A GB 2001558A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strips
- strip
- electrical steel
- production
- steel sheets
- 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.)
- Withdrawn
Links
- 229910000976 Electrical steel Inorganic materials 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 238000000137 annealing Methods 0.000 abstract 1
- 238000005098 hot rolling Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/05—Stretching combined with rolling
-
- 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
- C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
- C21D8/1238—Flattening; Dressing; Flexing
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
Abstract
A process for producing electrical steel sheets and strips, more particularly silicon steel strips, whereby the magnetic properties are substantially improved in respect of the iron losses or the hysteresis losses, without detriment to other characteristics, comprises subjecting the strip to flexure, during a plastic deformation stage at least prior to the final anneal and possibly during hot- rolling during the production of cold- rolled electrical steel strips. The strip is preferably subjected to a furnace tension of 0.75 kg/mm<2> maximum in the annealing line, and is preferably flexed under a stretching strain of 0.8 to 5.0% depending on its Si content. A flexing unit 2 is provided with at least two adjustable rolls 3 with a diameter at the most 50 times the strip 1 thickness, and the theoretical wrap angle over each of the rolls is greater than 25 DEG , preferably 40 DEG to 50 DEG . <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772734500 DE2734500A1 (en) | 1977-07-30 | 1977-07-30 | PROCESS FOR MANUFACTURING ELECTRIC SHEETS AND STRIPS, IN PARTICULAR FE-SI SHEETS AND STRIPS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2001558A true GB2001558A (en) | 1979-02-07 |
Family
ID=6015278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB787829734A Withdrawn GB2001558A (en) | 1977-07-30 | 1978-07-13 | Production of electrical steel sheets and strips |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5471398A (en) |
| AT (1) | AT366416B (en) |
| BR (1) | BR7804453A (en) |
| DE (1) | DE2734500A1 (en) |
| FR (1) | FR2398805A1 (en) |
| GB (1) | GB2001558A (en) |
| IT (1) | IT1097093B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0019289A2 (en) * | 1979-05-16 | 1980-11-26 | Nippon Steel Corporation | Process for producing grain-oriented silicon steel strip |
| EP0225198A1 (en) * | 1985-09-05 | 1987-06-10 | Fabrique De Fer De Maubeuge | Apparatus for stretch-levelling metal strip |
| EP1277528A2 (en) * | 2001-07-21 | 2003-01-22 | Sundwig-Kohler GmbH | Washing machine for metal strips |
| WO2003055617A1 (en) * | 2001-12-27 | 2003-07-10 | Alcan International Limited | Method for continuous tension leveling of aluminum strip |
| FR3027920A1 (en) * | 2014-10-29 | 2016-05-06 | Fives Stein | METHOD FOR ORIENTING STEEL SHEET GRAINS, DEVICE THEREFOR, AND INSTALLATION USING SAID METHOD OR DEVICE |
| CN115404329A (en) * | 2022-08-24 | 2022-11-29 | 北冶功能材料(江苏)有限公司 | Silicon steel strip and preparation method thereof |
| CN116713347A (en) * | 2023-08-10 | 2023-09-08 | 太原科技大学 | Variable wrap angle compaction device for metal ultrathin strip used for stretching, bending and straightening process |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2482482B1 (en) * | 1980-05-16 | 1984-08-24 | Siderurgie Fse Inst Rech |
-
1977
- 1977-07-30 DE DE19772734500 patent/DE2734500A1/en active Pending
-
1978
- 1978-05-22 AT AT0370078A patent/AT366416B/en not_active IP Right Cessation
- 1978-06-07 FR FR7817045A patent/FR2398805A1/en not_active Withdrawn
- 1978-06-28 IT IT25066/78A patent/IT1097093B/en active
- 1978-07-11 BR BR7804453A patent/BR7804453A/en unknown
- 1978-07-13 GB GB787829734A patent/GB2001558A/en not_active Withdrawn
- 1978-07-18 JP JP8683278A patent/JPS5471398A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0019289A2 (en) * | 1979-05-16 | 1980-11-26 | Nippon Steel Corporation | Process for producing grain-oriented silicon steel strip |
| EP0019289A3 (en) * | 1979-05-16 | 1981-11-25 | Nippon Steel Corporation | Process for producing grain-oriented silicon steel strip |
| EP0225198A1 (en) * | 1985-09-05 | 1987-06-10 | Fabrique De Fer De Maubeuge | Apparatus for stretch-levelling metal strip |
| EP1277528A2 (en) * | 2001-07-21 | 2003-01-22 | Sundwig-Kohler GmbH | Washing machine for metal strips |
| EP1277528A3 (en) * | 2001-07-21 | 2003-04-16 | Sundwig GmbH | Washing machine for metal strips |
| US6668610B2 (en) | 2001-12-27 | 2003-12-30 | Alcan International Limited | Method for continuous tension leveling of aluminum strip |
| WO2003055617A1 (en) * | 2001-12-27 | 2003-07-10 | Alcan International Limited | Method for continuous tension leveling of aluminum strip |
| FR3027920A1 (en) * | 2014-10-29 | 2016-05-06 | Fives Stein | METHOD FOR ORIENTING STEEL SHEET GRAINS, DEVICE THEREFOR, AND INSTALLATION USING SAID METHOD OR DEVICE |
| WO2016067214A1 (en) * | 2014-10-29 | 2016-05-06 | Fives Stein | Method for orienting steel sheet grains, corresponding device, and facility implementing said method or device |
| US11028459B2 (en) | 2014-10-29 | 2021-06-08 | Fives Stein | Method for orienting steel sheet grains, corresponding device, and facility implementing said method or device |
| CN115404329A (en) * | 2022-08-24 | 2022-11-29 | 北冶功能材料(江苏)有限公司 | Silicon steel strip and preparation method thereof |
| CN115404329B (en) * | 2022-08-24 | 2024-08-16 | 北冶功能材料(江苏)有限公司 | Silicon steel strip and preparation method thereof |
| CN116713347A (en) * | 2023-08-10 | 2023-09-08 | 太原科技大学 | Variable wrap angle compaction device for metal ultrathin strip used for stretching, bending and straightening process |
| CN116713347B (en) * | 2023-08-10 | 2023-11-03 | 太原科技大学 | Variable wrap angle compaction device for metal ultrathin strip used for stretching, bending and straightening process |
Also Published As
| Publication number | Publication date |
|---|---|
| IT7825066A0 (en) | 1978-06-28 |
| IT1097093B (en) | 1985-08-26 |
| FR2398805A1 (en) | 1979-02-23 |
| JPS5471398A (en) | 1979-06-07 |
| AT366416B (en) | 1982-04-13 |
| DE2734500A1 (en) | 1979-02-15 |
| ATA370078A (en) | 1981-08-15 |
| BR7804453A (en) | 1979-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |