GB1090569A - A process for the production of silicon steel - Google Patents
A process for the production of silicon steelInfo
- Publication number
- GB1090569A GB1090569A GB28190/65A GB2819065A GB1090569A GB 1090569 A GB1090569 A GB 1090569A GB 28190/65 A GB28190/65 A GB 28190/65A GB 2819065 A GB2819065 A GB 2819065A GB 1090569 A GB1090569 A GB 1090569A
- Authority
- GB
- United Kingdom
- Prior art keywords
- metal
- silicon
- silicon steel
- carbon content
- less
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Lubricants (AREA)
Abstract
In the manufacture of silicon steel containing 2.5 to 4% of silicon the iron is refined by an oxygen process, the treatment being continued until the carbon content of the metal is reduced to 0.03% or less, after which the metal is tapped at not less than 2900 DEG F. After the addition of silicon and sulphur, the metal may be stirred with an ingot of substantially its own composition, and is then cast, preferably at a temperature of at least 2850 DEG F. The ingots are then hot rolled to strip with an exit temperature of 1400 DEG -1700 DEG F., and then cold rolled after which it may be annealed at 1500-1700 DEG F. to produce the desired grain orientation and decarburized to a carbon content of not more than 0.005%. Preferably the latter treatment is carried out at 1350 DEG -1800 DEG F. in an atmosphere of 5-40% hydrogen, remainder nitrogen with a dewpoint of 60 DEG F. or above; it may be followed by a desulphurizing box anneal in pure hydrogen at 2000-2200 DEG F.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US44502365A | 1965-04-02 | 1965-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1090569A true GB1090569A (en) | 1967-11-08 |
Family
ID=23767328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28190/65A Expired GB1090569A (en) | 1965-04-02 | 1965-07-02 | A process for the production of silicon steel |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3438820A (en) |
| GB (1) | GB1090569A (en) |
| SE (1) | SE313067B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3662810A (en) * | 1969-09-02 | 1972-05-16 | Howmet Corp | Method of internal nucleation of a casting |
| JPS5431967B1 (en) * | 1971-04-08 | 1979-10-11 | ||
| JPS5219525B2 (en) * | 1972-09-05 | 1977-05-28 | ||
| US3855018A (en) * | 1972-09-28 | 1974-12-17 | Allegheny Ludlum Ind Inc | Method for producing grain oriented silicon steel comprising copper |
| US3955967A (en) * | 1973-05-02 | 1976-05-11 | The Algoma Steel Corporation, Limited | Treatment of steel |
| US4000015A (en) * | 1975-05-15 | 1976-12-28 | Allegheny Ludlum Industries, Inc. | Processing for cube-on-edge oriented silicon steel using hydrogen of controlled dew point |
| AT362408B (en) * | 1977-10-11 | 1981-05-25 | Voest Alpine Ag | DEVICE FOR MEDIA SUPPLY OF A BLOWING LANCE FOR A METALLURGICAL VESSEL |
| JPS6048886B2 (en) * | 1981-08-05 | 1985-10-30 | 新日本製鐵株式会社 | High magnetic flux density unidirectional electrical steel sheet with excellent iron loss and method for manufacturing the same |
| US4695318A (en) * | 1986-10-14 | 1987-09-22 | Allegheny Ludlum Corporation | Method of making steel |
| DE102011054004A1 (en) | 2011-09-28 | 2013-03-28 | Thyssenkrupp Electrical Steel Gmbh | Method for producing a grain-oriented electrical tape or sheet intended for electrical applications |
| CN113897558B (en) * | 2021-10-08 | 2022-10-11 | 北京北冶功能材料有限公司 | High-saturation-magnetic-induction high-permeability iron-based soft magnetic material and preparation method thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2287467A (en) * | 1940-01-03 | 1942-06-23 | American Rolling Mill Co | Process of producing silicon steel |
| US2529373A (en) * | 1947-03-25 | 1950-11-07 | American Steel & Wire Co | Treating silicon steel |
| US2599340A (en) * | 1948-10-21 | 1952-06-03 | Armco Steel Corp | Process of increasing the permeability of oriented silicon steels |
| US2867557A (en) * | 1956-08-02 | 1959-01-06 | Allegheny Ludlum Steel | Method of producing silicon steel strip |
| BE571059A (en) * | 1956-12-31 | |||
| US3039902A (en) * | 1958-04-15 | 1962-06-19 | Allegheny Ludlum Steel | Method of treating steel |
| US3021237A (en) * | 1958-08-05 | 1962-02-13 | Allegheny Ludlum Steel | Processing of metal |
| US3196054A (en) * | 1963-08-14 | 1965-07-20 | Armco Steel Corp | Process of decarburizing and annealing of open coil silicon-iron sheet stock without intervening surface treatment |
| US3030203A (en) * | 1960-10-10 | 1962-04-17 | Allegheny Ludlum Steel | Process of producing steel |
-
1965
- 1965-04-02 US US445023A patent/US3438820A/en not_active Expired - Lifetime
- 1965-07-02 GB GB28190/65A patent/GB1090569A/en not_active Expired
- 1965-10-26 SE SE13809/65A patent/SE313067B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1458845A1 (en) | 1969-01-09 |
| DE1458845B2 (en) | 1975-09-11 |
| US3438820A (en) | 1969-04-15 |
| SE313067B (en) | 1969-08-04 |
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