GB1108949A - Method of applying annealing separators - Google Patents
Method of applying annealing separatorsInfo
- Publication number
- GB1108949A GB1108949A GB18312/65A GB1831265A GB1108949A GB 1108949 A GB1108949 A GB 1108949A GB 18312/65 A GB18312/65 A GB 18312/65A GB 1831265 A GB1831265 A GB 1831265A GB 1108949 A GB1108949 A GB 1108949A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stock
- binder
- refractory
- coating
- solute
- 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
- 238000000137 annealing Methods 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 5
- 239000011230 binding agent Substances 0.000 abstract 12
- 238000000576 coating method Methods 0.000 abstract 9
- 239000011248 coating agent Substances 0.000 abstract 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract 4
- 239000007788 liquid Substances 0.000 abstract 4
- 230000008016 vaporization Effects 0.000 abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 2
- 241000209140 Triticum Species 0.000 abstract 2
- 235000021307 Triticum Nutrition 0.000 abstract 2
- 229920001807 Urea-formaldehyde Polymers 0.000 abstract 2
- 230000001464 adherent effect Effects 0.000 abstract 2
- 239000000853 adhesive Substances 0.000 abstract 2
- 230000001070 adhesive effect Effects 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 238000004458 analytical method Methods 0.000 abstract 2
- 238000005367 electrostatic precipitation Methods 0.000 abstract 2
- 239000010419 fine particle Substances 0.000 abstract 2
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 abstract 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract 2
- 239000000347 magnesium hydroxide Substances 0.000 abstract 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract 2
- 239000000395 magnesium oxide Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 2
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 abstract 2
- 239000011819 refractory material Substances 0.000 abstract 2
- 238000012216 screening Methods 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- 239000007921 spray Substances 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 238000009834 vaporization Methods 0.000 abstract 2
- 229920002554 vinyl polymer Polymers 0.000 abstract 2
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
- C21D8/1277—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular surface treatment
- C21D8/1283—Application of a separating or insulating coating
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/22—Luminous paints
-
- 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
-
- 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
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Crystallography & Structural Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Power Engineering (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
A process for forming a refractory coating on silicon-iron stock prior to an annealing operation comprises applying a thin binder layer in liquid form to one clean side of the stock, passing the coated stock into adherent contact with fine particles of a refractory separator substance and vaporizing the binder to leave a thin porous coating of the refractory particles on the stock for the annealing operation. The vaporization temperature of the binder materials must naturally be below the anneling temperature, and the binder may be solute-vehicle combinations like polyvinyl alcohol-water, wheat paste or ureaformaldehyde with water, and latex-type adhesive with benzene or naphtha. Magnesium hydroxide, alumina, non-hydrated magnesia, zirconia, and tit<\>aania are preferred refractories applied by screening, electrostatic precipitation or fluidized bed technique to the liquid binder layer which is itself formed by coating rolls, doctor blades or sprays on the pickled, degreased or burnt surface of the stock. One or both sides of the stock are coated, binder coatings being about 0.001 inch thick and the separator layer 0.002-0.003 inches. The solvent vehicle may be driven off by gentle heat or hot air blasts. The solute may be vaporized during the anneal itself. The Si, C, S and Mn contents of the ladle analyses are specified.ALSO:A process for forming a refractory coating on silicon-iron stock prior to an annealing operation comprises applying a thin binder layer in liquid form to one clean side of the stock, passing the coating stock into adherent contact with fine particles of a refractory separator substance and vaporizing the binder to leave a thin porous coating of the refractory particles on the stock for the annealing operation. The vaporization temperature of the binder materials must naturally be below the annealing temperature, and the binder may be solute-vehicle combinations like polyvinyl alcohol-water, wheat paste or ureaformaldehyde with water, and latex-type adhesive with benzene or naphtha. Magnesium hydroxide, alumina, non-hydrated magnesia, zirconia, and titania are preferred refractories applied by screening, electrostatic precipitation or fluidised bed technique to the liquid binder layer which is itself formed by coating rolls, doctor blades or sprays on the pickled, degreased or burnt surface of the stock. One or both sides of the stock are coated, binder coatings being about 0.001 inch thick and the separator layer 0.002-0.003 inches. The solvent vehicle may be driven off by gentle heat or hot air blasts. The solute may be vaporized during the anneal itself. The Sc, C, S and Mn contents of the ladle analyses are specified.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US368422A US3389006A (en) | 1964-05-18 | 1964-05-18 | Process for forming a refractory coating on silicon-iron stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1108949A true GB1108949A (en) | 1968-04-10 |
Family
ID=23451134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18312/65A Expired GB1108949A (en) | 1964-05-18 | 1965-04-30 | Method of applying annealing separators |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3389006A (en) |
| BE (1) | BE663934A (en) |
| CH (1) | CH482835A (en) |
| DE (1) | DE1458968B2 (en) |
| FR (1) | FR1433228A (en) |
| GB (1) | GB1108949A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7716282U1 (en) | 1976-05-24 | 1984-05-24 | Centro Sperimentale Metallurgico S.p.A., 00129 Roma | GRAIN-ORIENTED SILICON STEEL TAPE |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3523837A (en) * | 1967-11-06 | 1970-08-11 | Westinghouse Electric Corp | Non-reactive refractory separating coatings for electrical steels |
| US3868280A (en) * | 1967-12-12 | 1975-02-25 | Takaaki Yamamoto | Method of forming electric insulating films oriented silicon steel |
| JPS5112451B1 (en) * | 1967-12-12 | 1976-04-20 | ||
| US3554489A (en) * | 1968-08-26 | 1971-01-12 | Vesuvius Crucible Co | Coated stopper head for controlling outflow of molten metal through the nozzle of a bottom pour receptacle |
| US3775151A (en) * | 1970-05-06 | 1973-11-27 | Nat Steel Corp | Process for preparing chromized ferrous metal sheet material and the resultant articles |
| US3753757A (en) * | 1970-05-15 | 1973-08-21 | Union Carbide Corp | Two step porous boiling surface formation |
| JPS5219534B2 (en) * | 1972-09-29 | 1977-05-28 | ||
| US3877962A (en) * | 1972-12-18 | 1975-04-15 | Owens Illinois Inc | Substrate coating composition and process |
| JPS5322529B2 (en) * | 1973-10-30 | 1978-07-10 | ||
| ES460709A1 (en) * | 1976-08-11 | 1978-11-16 | Gen Electric | Stator core and method of forming the same |
| US4753687A (en) * | 1987-05-04 | 1988-06-28 | Calgon Corporation | Method for improving magnesium oxide steel coatings using non-aqueous solvents |
| US4799969A (en) * | 1987-05-04 | 1989-01-24 | Calgon Corporation | Method for improving magnesium oxide steel coatings using non-aqueous solvents |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2641556A (en) * | 1953-06-09 | Magnetic sheet material provided | ||
| US1922254A (en) * | 1926-05-20 | 1933-08-15 | Westinghouse Electric & Mfg Co | Thermionic tube electrode |
| US3000752A (en) * | 1957-12-30 | 1961-09-19 | Armco Steel Corp | Coating metallic sheet or strip material with powdered annealing separator substances |
| US3090711A (en) * | 1959-07-06 | 1963-05-21 | Armco Steel Corp | Procedure for secondary recrystallization |
| US3169236A (en) * | 1961-04-17 | 1965-02-09 | Gen Electric | Magnetic core for electrical induction apparatus with reduced magnetic losses |
| US3282747A (en) * | 1964-04-13 | 1966-11-01 | Westinghouse Electric Corp | Annealing cube texture iron-silicon sheets |
-
1964
- 1964-05-18 US US368422A patent/US3389006A/en not_active Expired - Lifetime
-
1965
- 1965-04-30 GB GB18312/65A patent/GB1108949A/en not_active Expired
- 1965-05-13 DE DE1965A0049192 patent/DE1458968B2/en active Pending
- 1965-05-14 FR FR17148A patent/FR1433228A/en not_active Expired
- 1965-05-14 BE BE663934D patent/BE663934A/xx unknown
- 1965-05-18 CH CH690265A patent/CH482835A/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7716282U1 (en) | 1976-05-24 | 1984-05-24 | Centro Sperimentale Metallurgico S.p.A., 00129 Roma | GRAIN-ORIENTED SILICON STEEL TAPE |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1458968A1 (en) | 1969-02-20 |
| FR1433228A (en) | 1966-03-25 |
| BE663934A (en) | 1965-09-01 |
| US3389006A (en) | 1968-06-18 |
| DE1458968B2 (en) | 1971-09-02 |
| CH482835A (en) | 1969-12-15 |
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