GB1266941A - - Google Patents
Info
- Publication number
- GB1266941A GB1266941A GB1266941DA GB1266941A GB 1266941 A GB1266941 A GB 1266941A GB 1266941D A GB1266941D A GB 1266941DA GB 1266941 A GB1266941 A GB 1266941A
- Authority
- GB
- United Kingdom
- Prior art keywords
- annealing
- final
- nitrogen
- decarburization
- april
- 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
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 6
- 238000000137 annealing Methods 0.000 abstract 5
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
- 229910017083 AlN Inorganic materials 0.000 abstract 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 abstract 2
- 238000005097 cold rolling Methods 0.000 abstract 2
- 238000005261 decarburization Methods 0.000 abstract 2
- 229910052717 sulfur Inorganic materials 0.000 abstract 2
- 229910052719 titanium Inorganic materials 0.000 abstract 2
- 229910052726 zirconium Inorganic materials 0.000 abstract 2
- 229910052796 boron Inorganic materials 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 238000005098 hot rolling Methods 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229910052758 niobium Inorganic materials 0.000 abstract 1
- 150000004767 nitrides Chemical class 0.000 abstract 1
- 230000000704 physical effect Effects 0.000 abstract 1
- 229910052711 selenium Inorganic materials 0.000 abstract 1
- 229910052715 tantalum Inorganic materials 0.000 abstract 1
- 229910052714 tellurium Inorganic materials 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
- 229910052720 vanadium Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/14766—Fe-Si based alloys
- H01F1/14775—Fe-Si based alloys in the form of sheets
-
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Dispersion Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
Abstract
1,266,941. Making sheets; altering physical properties. NIPPON STEEL CORP. 2 April, 1969 [2 April, 1968], No. 17291/69. Headings B3A and B3V. [Also in Division C7] Single-oriented sheets having a high magnetic induction are produced from a steel containing in percentage by weight:- with 0À003-0À10% S optionally present, by hot rolling, cold rolling and annealing, followed by decarburization and final annealing. At least one of the intermediate anneals must be in the range 700-1200 C. to bring about a gamma transformation at least at the grain boundary regions and to precipitate aluminium nitride, while the final cold rolling involves a reduction of 60-95%. Where the inherent nitrogen content is insufficient to form the nitride annealing may be carried out in nitrogen. As exemplified decarburization was effected in wet H 2 by annealing for 3 minutes at 800 C., or by open coil annealing for 5 hours at 750 C. The final anneal (at 870-1200 C.) should be in H 2 to remove Se, Te, and S. Other elements which may be present in the steel include B, Zr, Ti, Nb, Ta, Cr (preferably not more than 0À1% each), W (preferably not more than 0À5%), and V, Mn, Mo (preferably not more than 1% each). If Ti or Zr are present sufficient nitrogen must be available to form aluminium nitride.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2168668 | 1968-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1266941A true GB1266941A (en) | 1972-03-15 |
Family
ID=12061936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1266941D Expired GB1266941A (en) | 1968-04-02 | 1969-04-02 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3853641A (en) |
| BE (1) | BE730896A (en) |
| CA (1) | CA920036A (en) |
| DE (1) | DE1917025A1 (en) |
| FR (1) | FR2005396A1 (en) |
| GB (1) | GB1266941A (en) |
| SE (1) | SE355199B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5129496B2 (en) * | 1971-10-20 | 1976-08-26 | ||
| JPS5113469B2 (en) * | 1972-10-13 | 1976-04-28 | ||
| JPS4976719A (en) * | 1972-11-28 | 1974-07-24 | ||
| JPS5432412B2 (en) * | 1973-10-31 | 1979-10-15 | ||
| JPS50116998A (en) * | 1974-02-28 | 1975-09-12 | ||
| SE442751B (en) * | 1980-01-04 | 1986-01-27 | Kawasaki Steel Co | SET TO MAKE A CORN ORIENTED SILICONE PLATE |
| JPS5956523A (en) * | 1982-09-24 | 1984-04-02 | Nippon Steel Corp | Manufacture of anisotropic silicon steel plate having high magnetic flux density |
| JPS5956522A (en) * | 1982-09-24 | 1984-04-02 | Nippon Steel Corp | Manufacture of anisotropic electrical steel plate with improved iron loss |
| JPS59208020A (en) * | 1983-05-12 | 1984-11-26 | Nippon Steel Corp | Manufacture of grain-oriented electrical steel sheet with small iron loss |
| US4596614A (en) * | 1984-11-02 | 1986-06-24 | Bethlehem Steel Corporation | Grain oriented electrical steel and method |
| GB9116242D0 (en) * | 1991-07-27 | 1991-09-11 | British Steel Plc | Method and apparatus for producing strip products by a spray forming technique |
| DE69840979D1 (en) * | 1998-03-11 | 2009-08-27 | Nippon Steel Corp | ELECTRO-STEEL PLATE WITH CORNORATION AND METHOD FOR THE PRODUCTION THEREOF |
| CA2459471C (en) * | 2001-09-13 | 2010-02-02 | Jerry W. Schoen | Method of continuously casting electrical steel strip with controlled spray cooling |
| CN110218853B (en) * | 2019-06-26 | 2020-11-24 | 武汉钢铁有限公司 | Process method for preparing low-temperature high-magnetic-induction oriented silicon steel |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB873149A (en) * | 1956-11-08 | 1961-07-19 | Yawata Iron & Steel Co | Method of producing oriented silicon steel |
| BE563545A (en) * | 1956-12-31 | |||
| US3157538A (en) * | 1960-05-17 | 1964-11-17 | Kawasaki Steel Co | Grain oriented silicon steel containing selenium and method of making the same |
| FR1275315A (en) * | 1960-11-30 | 1961-11-03 | Kawasaki Steel Co | Grain oriented silicon steel containing selenium, and its production process |
| US3287183A (en) * | 1964-06-22 | 1966-11-22 | Yawata Iron & Steel Co | Process for producing single-oriented silicon steel sheets having a high magnetic induction |
| US3333992A (en) * | 1964-06-29 | 1967-08-01 | Armco Steel Corp | Production of oriented silicon-iron using grain growth inhibitor during primary recrystallization heat treatment |
| US3333993A (en) * | 1965-04-02 | 1967-08-01 | Armco Steel Corp | Production of thin, oriented siliconiron wherein grain growth inhibitor is added to primary recrystallization heat treatment atmosphere as function of mn content and final thickness |
| US3540948A (en) * | 1967-12-18 | 1970-11-17 | United States Steel Corp | Method of producing cube-on-corner oriented electrical steel sheet |
| US3700506A (en) * | 1968-12-10 | 1972-10-24 | Nippon Steel Corp | Method for reducing an iron loss of an oriented magnetic steel sheet 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 |
-
1969
- 1969-03-31 CA CA047321A patent/CA920036A/en not_active Expired
- 1969-04-01 SE SE04608/69A patent/SE355199B/xx unknown
- 1969-04-02 BE BE730896D patent/BE730896A/xx not_active IP Right Cessation
- 1969-04-02 DE DE19691917025 patent/DE1917025A1/en active Pending
- 1969-04-02 GB GB1266941D patent/GB1266941A/en not_active Expired
- 1969-04-02 FR FR6910050A patent/FR2005396A1/fr not_active Withdrawn
-
1971
- 1971-09-24 US US00183686A patent/US3853641A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA920036A (en) | 1973-01-30 |
| BE730896A (en) | 1969-09-15 |
| FR2005396A1 (en) | 1969-12-12 |
| US3853641A (en) | 1974-12-10 |
| SE355199B (en) | 1973-04-09 |
| DE1917025A1 (en) | 1972-02-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |