ES441705A1 - Process involving cooling in a static atmosphere for high permeability silicon steel comprising copper - Google Patents
Process involving cooling in a static atmosphere for high permeability silicon steel comprising copperInfo
- Publication number
- ES441705A1 ES441705A1 ES441705A ES441705A ES441705A1 ES 441705 A1 ES441705 A1 ES 441705A1 ES 441705 A ES441705 A ES 441705A ES 441705 A ES441705 A ES 441705A ES 441705 A1 ES441705 A1 ES 441705A1
- Authority
- ES
- Spain
- Prior art keywords
- steel
- temperature
- copper
- atmosphere
- silicon steel
- 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
- C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
- C21D8/1266—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest between cold rolling steps
-
- 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
-
- 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
- C21D8/1233—Cold 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
- C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
- C21D8/1261—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest following hot rolling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Metal Rolling (AREA)
Abstract
A process for producing silicon steel having a cube-on-edge orientation and a permeability of at least 1850 (G/Oe) at 10 oersteds, which includes the steps of: preparing a melt of steel consisting essentially of, by weight, up to 0.07% carbon, from 2.60 to 4.0% silicon, from 0.03 to 0.24% manganese, from 0.01 to 0.09% of material from the group consisting of sulfur and selenium, from 0.015 to 0.04% aluminum, up to 0.02% nitrogen, from 0.1 to 0.5% copper, from 0.00045 to 0.0035% boron, balance iron casting the steel hot rolling the steel annealing the steel prior to a final cold roll at a temperature of from 1400 DEG to 2150 DEG F cooling the steel from a temperature below 1700 DEG F and above 750 DEG F to a temperature at least as low as 500 DEG F with a liquid quenching medium or gaseous stream and from its maximum annealing temperature to the temperature below 1700 DEG F and above 750 DEG F at a rate which is no faster than one wherein the steel is cooled in a static atmosphere or in a continuous processing line where there is some relative motion between the atmosphere and the steel, although the only deliberate motion is that imparted to the steel and cold rolling the steel at a reduction of at least 80%.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US524846A US3929522A (en) | 1974-11-18 | 1974-11-18 | Process involving cooling in a static atmosphere for high permeability silicon steel comprising copper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES441705A1 true ES441705A1 (en) | 1977-04-01 |
Family
ID=24090895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES441705A Expired ES441705A1 (en) | 1974-11-18 | 1975-10-10 | Process involving cooling in a static atmosphere for high permeability silicon steel comprising copper |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US3929522A (en) |
| JP (1) | JPS5843444B2 (en) |
| AR (1) | AR208730A1 (en) |
| BE (1) | BE834876A (en) |
| CA (1) | CA1041879A (en) |
| DE (1) | DE2550426A1 (en) |
| ES (1) | ES441705A1 (en) |
| FR (1) | FR2291276A1 (en) |
| GB (1) | GB1478739A (en) |
| IN (1) | IN143003B (en) |
| IT (1) | IT1047747B (en) |
| PL (1) | PL106073B1 (en) |
| SE (1) | SE414949B (en) |
| YU (1) | YU291375A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1558621A (en) * | 1975-07-05 | 1980-01-09 | Zaidan Hojin Denki Jiki Zairyo | High dumping capacity alloy |
| US4054470A (en) * | 1976-06-17 | 1977-10-18 | Allegheny Ludlum Industries, Inc. | Boron and copper bearing silicon steel and processing therefore |
| US4174235A (en) * | 1978-01-09 | 1979-11-13 | General Electric Company | Product and method of producing silicon-iron sheet material employing antimony |
| US4113529A (en) * | 1977-09-29 | 1978-09-12 | General Electric Company | Method of producing silicon-iron sheet material with copper as a partial substitute for sulfur, and product |
| US4177091A (en) * | 1978-08-16 | 1979-12-04 | General Electric Company | Method of producing silicon-iron sheet material, and product |
| JPS57145963A (en) * | 1981-03-04 | 1982-09-09 | Hitachi Metals Ltd | Material for magnetic head and its manufacture |
| 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 |
| JPH01159859U (en) * | 1988-04-28 | 1989-11-06 | ||
| US5078808A (en) † | 1990-07-09 | 1992-01-07 | Armco Inc. | Method of making regular grain oriented silicon steel without a hot band anneal |
| DE69128624T3 (en) † | 1991-10-21 | 2002-05-29 | Armco Inc., Middletown | Process for the production of normal grain-oriented steel with high silicon and low carbon content |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3287184A (en) * | 1963-10-22 | 1966-11-22 | Bethlehem Steel Corp | Method of producing low carbon electrical sheet steel |
| CA920035A (en) * | 1968-04-27 | 1973-01-30 | Taguchi Satoru | Method for producing an electro-magnetic steel sheet of a thin sheet thickness having a high magnetic induction |
| US3671337A (en) * | 1969-02-21 | 1972-06-20 | Nippon Steel Corp | Process for producing grain oriented electromagnetic steel sheets having excellent magnetic characteristics |
| BE790798A (en) * | 1971-11-04 | 1973-02-15 | Armco Steel Corp | Manufacturing process of cube-on-edge orientation silicon iron from cast slabs |
| US3770517A (en) * | 1972-03-06 | 1973-11-06 | Allegheny Ludlum Ind Inc | Method of producing substantially non-oriented silicon steel strip by three-stage cold rolling |
| US3855018A (en) * | 1972-09-28 | 1974-12-17 | Allegheny Ludlum Ind Inc | Method for producing grain oriented silicon steel comprising copper |
| US3873381A (en) * | 1973-03-01 | 1975-03-25 | Armco Steel Corp | High permeability cube-on-edge oriented silicon steel and method of making it |
| US3855019A (en) * | 1973-05-07 | 1974-12-17 | Allegheny Ludlum Ind Inc | Processing for high permeability silicon steel comprising copper |
| US3855021A (en) * | 1973-05-07 | 1974-12-17 | Allegheny Ludlum Ind Inc | Processing for high permeability silicon steel comprising copper |
| US3855020A (en) * | 1973-05-07 | 1974-12-17 | Allegheny Ludlum Ind Inc | Processing for high permeability silicon steel comprising copper |
| US3925115A (en) * | 1974-11-18 | 1975-12-09 | Allegheny Ludlum Ind Inc | Process employing cooling in a static atmosphere for high permeability silicon steel comprising copper |
-
1974
- 1974-11-18 US US524846A patent/US3929522A/en not_active Expired - Lifetime
-
1975
- 1975-09-17 CA CA235,675A patent/CA1041879A/en not_active Expired
- 1975-09-22 GB GB38765/75A patent/GB1478739A/en not_active Expired
- 1975-10-09 IT IT51715/75A patent/IT1047747B/en active
- 1975-10-10 ES ES441705A patent/ES441705A1/en not_active Expired
- 1975-10-24 FR FR7532699A patent/FR2291276A1/en active Granted
- 1975-10-27 BE BE2054634A patent/BE834876A/en not_active IP Right Cessation
- 1975-10-29 IN IN2080/CAL/1975A patent/IN143003B/en unknown
- 1975-11-10 DE DE19752550426 patent/DE2550426A1/en active Granted
- 1975-11-13 JP JP50136784A patent/JPS5843444B2/en not_active Expired
- 1975-11-17 YU YU02913/75A patent/YU291375A/en unknown
- 1975-11-18 SE SE7512968A patent/SE414949B/en unknown
- 1975-11-18 AR AR261250A patent/AR208730A1/en active
- 1975-11-18 PL PL1975184805A patent/PL106073B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3929522A (en) | 1975-12-30 |
| FR2291276B1 (en) | 1981-08-28 |
| SE7512968L (en) | 1976-05-19 |
| JPS5843444B2 (en) | 1983-09-27 |
| DE2550426A1 (en) | 1976-05-20 |
| BE834876A (en) | 1976-02-16 |
| YU291375A (en) | 1982-02-28 |
| AR208730A1 (en) | 1977-02-28 |
| DE2550426C2 (en) | 1987-12-23 |
| GB1478739A (en) | 1977-07-06 |
| IT1047747B (en) | 1980-10-20 |
| PL106073B1 (en) | 1979-11-30 |
| FR2291276A1 (en) | 1976-06-11 |
| IN143003B (en) | 1977-09-17 |
| AU8499875A (en) | 1977-03-24 |
| CA1041879A (en) | 1978-11-07 |
| SE414949B (en) | 1980-08-25 |
| JPS5173922A (en) | 1976-06-26 |
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