GB1428902A - Processing for high permeability silicon steel - Google Patents
Processing for high permeability silicon steelInfo
- Publication number
- GB1428902A GB1428902A GB1980474A GB1980474A GB1428902A GB 1428902 A GB1428902 A GB 1428902A GB 1980474 A GB1980474 A GB 1980474A GB 1980474 A GB1980474 A GB 1980474A GB 1428902 A GB1428902 A GB 1428902A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silicon steel
- annealed
- processing
- high permeability
- permeability silicon
- 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
- C21D8/1261—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
-
- 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
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)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
- Metal Rolling (AREA)
Abstract
1428902 Heat-treating silicon steel ALLEGHENY LUDLUM INDUSTRIES Inc 6 May 1974 [7 May 1973] 19804/74 Heading C7A Steel containing in percentage by wt. is hot worked, annealed at 1400-1700‹F for 15 seconds to 2 hours, cooled at a rate equivalent to that in still air, cold-rolled with at least 80% reduction without intermediate annealing, decarburization annealed and finally annealed to produce a cube-on-edge structure providing a permeability of at least 1850 (G/Oe). The initial anneal may be carried out in nitrogen, hydrogen, argon or air.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00357973A US3855019A (en) | 1973-05-07 | 1973-05-07 | Processing for high permeability silicon steel comprising copper |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1428902A true GB1428902A (en) | 1976-03-24 |
Family
ID=23407791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1980474A Expired GB1428902A (en) | 1973-05-07 | 1974-05-06 | Processing for high permeability silicon steel |
Country Status (8)
Country | Link |
---|---|
US (1) | US3855019A (en) |
JP (1) | JPS5813605B2 (en) |
BE (1) | BE814023A (en) |
CA (1) | CA1010347A (en) |
DE (1) | DE2422073B2 (en) |
ES (1) | ES426047A1 (en) |
GB (1) | GB1428902A (en) |
IT (1) | IT1011366B (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3929522A (en) * | 1974-11-18 | 1975-12-30 | Allegheny Ludlum Ind Inc | Process involving cooling in a static atmosphere 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 |
US4078952A (en) * | 1976-06-17 | 1978-03-14 | Allegheny Ludlum Industries, Inc. | Controlling the manganese to sulfur ratio during the processing for high permeability silicon steel |
US4054470A (en) * | 1976-06-17 | 1977-10-18 | Allegheny Ludlum Industries, Inc. | Boron and copper bearing silicon steel and processing therefore |
US4168189A (en) * | 1977-05-20 | 1979-09-18 | Armco Inc. | Process of producing an electrically insulative film |
US4319936A (en) * | 1980-12-08 | 1982-03-16 | Armco Inc. | Process for production of oriented silicon steel |
JPS57145963A (en) * | 1981-03-04 | 1982-09-09 | Hitachi Metals Ltd | Material for magnetic head and its manufacture |
US4411714A (en) * | 1981-08-24 | 1983-10-25 | Allegheny Ludlum Steel Corporation | Method for improving the magnetic properties of grain oriented silicon steel |
JPS58100627A (en) * | 1981-12-11 | 1983-06-15 | Nippon Steel Corp | Manufacture of directional electrical sheet |
DE4311151C1 (en) * | 1993-04-05 | 1994-07-28 | Thyssen Stahl Ag | Grain-orientated electro-steel sheets with good properties |
US7204894B1 (en) | 2004-03-18 | 2007-04-17 | Nucor Corporation | Annealing of hot rolled steel coils with clam shell furnace |
CN105956274B (en) * | 2016-05-04 | 2019-06-07 | 武汉钢铁有限公司 | Pass through the method for texture index assessment non-orientation silicon steel magnetic property |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2209686A (en) * | 1938-07-25 | 1940-07-30 | Electro Metallurg Co | Sheared electrical steel sheet |
GB873149A (en) * | 1956-11-08 | 1961-07-19 | Yawata Iron & Steel Co | Method of producing oriented silicon steel |
BE563546A (en) * | 1956-12-31 | |||
GB933873A (en) * | 1959-07-09 | 1963-08-14 | United States Steel Corp | Method of producing grain oriented electrical steel |
US3345219A (en) * | 1960-05-04 | 1967-10-03 | Vacuumschmelze Ag | Method for producing magnetic sheets of silicon-iron alloys |
US3287184A (en) * | 1963-10-22 | 1966-11-22 | Bethlehem Steel Corp | Method of producing low carbon electrical sheet steel |
US3632456A (en) * | 1968-04-27 | 1972-01-04 | Nippon Steel Corp | Method for producing an electromagnetic steel sheet of a thin sheet thickness having a high-magnetic induction |
US3575739A (en) * | 1968-11-01 | 1971-04-20 | Gen Electric | Secondary recrystallization of silicon iron with nitrogen |
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 |
-
1973
- 1973-05-07 US US00357973A patent/US3855019A/en not_active Expired - Lifetime
-
1974
- 1974-04-18 CA CA198,057A patent/CA1010347A/en not_active Expired
- 1974-04-22 BE BE143470A patent/BE814023A/en not_active IP Right Cessation
- 1974-05-03 IT IT50770/74A patent/IT1011366B/en active
- 1974-05-06 GB GB1980474A patent/GB1428902A/en not_active Expired
- 1974-05-07 JP JP49049839A patent/JPS5813605B2/en not_active Expired
- 1974-05-07 DE DE2422073A patent/DE2422073B2/en not_active Ceased
- 1974-05-07 ES ES426047A patent/ES426047A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IT1011366B (en) | 1977-01-20 |
DE2422073A1 (en) | 1974-11-28 |
ES426047A1 (en) | 1976-07-01 |
JPS5813605B2 (en) | 1983-03-15 |
JPS5015726A (en) | 1975-02-19 |
CA1010347A (en) | 1977-05-17 |
BE814023A (en) | 1974-10-22 |
US3855019A (en) | 1974-12-17 |
DE2422073B2 (en) | 1975-12-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |