GB1504797A - Method of forming a film on a steel sheet - Google Patents
Method of forming a film on a steel sheetInfo
- Publication number
- GB1504797A GB1504797A GB1668575A GB1668575A GB1504797A GB 1504797 A GB1504797 A GB 1504797A GB 1668575 A GB1668575 A GB 1668575A GB 1668575 A GB1668575 A GB 1668575A GB 1504797 A GB1504797 A GB 1504797A
- Authority
- GB
- United Kingdom
- Prior art keywords
- steel sheet
- april
- separator
- tio
- film
- 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
-
- 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
- H01F1/14783—Fe-Si based alloys in the form of sheets with insulating coating
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
- C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Chemical Treatment Of Metals (AREA)
- Soft Magnetic Materials (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
1504797 Heat-treating silicon steel sheet KAWASAKI STEEL CORP 22 April 1975 [23 April 1974] 16685/75 Heading C7N Cold-rolled silicon steel sheet at final gauge is decarburization annealed at 700-900‹C in wet hydrogen whereby a surface film of SiO 2 is produced. It is then coated with a separator comprising MgO and 1-20 wt per cent TiO 2 , based on the total wt of the separator, coiled, and given a further anneal, particularly 10-100 hours in nitrogen at 800-900‹C to develop recrystallized (110) [001] grains followed by a final anneal at 1000-1200‹C in hydrogen. At least 98 wt per cent of the TiO 2 is #44Á and at least 80% is #20Á.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4503674A JPS5615466B2 (en) | 1974-04-23 | 1974-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1504797A true GB1504797A (en) | 1978-03-22 |
Family
ID=12708109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1668575A Expired GB1504797A (en) | 1974-04-23 | 1975-04-22 | Method of forming a film on a steel sheet |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5615466B2 (en) |
| FR (1) | FR2268874B1 (en) |
| GB (1) | GB1504797A (en) |
| SE (1) | SE410013B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54143718A (en) * | 1978-04-28 | 1979-11-09 | Kawasaki Steel Co | Formation of insulating layer of directional silicon steel plate |
| JPS60177132A (en) * | 1984-02-24 | 1985-09-11 | Nippon Steel Corp | Manufacturing method of high magnetic flux density unidirectional electrical steel sheet with excellent magnetic properties |
| JPS61158562A (en) * | 1984-12-29 | 1986-07-18 | 株式会社新潟鐵工所 | Automatic grease supply method of concrete piston |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5112451B1 (en) * | 1967-12-12 | 1976-04-20 |
-
1974
- 1974-04-23 JP JP4503674A patent/JPS5615466B2/ja not_active Expired
-
1975
- 1975-04-16 SE SE7504356A patent/SE410013B/en not_active IP Right Cessation
- 1975-04-22 FR FR7512509A patent/FR2268874B1/fr not_active Expired
- 1975-04-22 GB GB1668575A patent/GB1504797A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE7504356L (en) | 1975-10-24 |
| JPS50145315A (en) | 1975-11-21 |
| SE410013B (en) | 1979-09-17 |
| DE2517624A1 (en) | 1975-10-30 |
| FR2268874B1 (en) | 1978-02-03 |
| JPS5615466B2 (en) | 1981-04-10 |
| DE2517624B2 (en) | 1976-06-24 |
| FR2268874A1 (en) | 1975-11-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19950421 |