GB717627A - Improvements in or relating to electrically insulating coatings for magnetic sheet material containing iron - Google Patents
Improvements in or relating to electrically insulating coatings for magnetic sheet material containing ironInfo
- Publication number
- GB717627A GB717627A GB17727/52A GB1772752A GB717627A GB 717627 A GB717627 A GB 717627A GB 17727/52 A GB17727/52 A GB 17727/52A GB 1772752 A GB1772752 A GB 1772752A GB 717627 A GB717627 A GB 717627A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet material
- solution
- material containing
- electrically insulating
- containing iron
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 4
- 238000000576 coating method Methods 0.000 title abstract 4
- 239000000463 material Substances 0.000 title abstract 3
- 229910052742 iron Inorganic materials 0.000 title abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 4
- 239000000243 solution Substances 0.000 abstract 4
- -1 alkyl aryl sulphonate Chemical compound 0.000 abstract 2
- XFBXDGLHUSUNMG-UHFFFAOYSA-N alumane;hydrate Chemical compound O.[AlH3] XFBXDGLHUSUNMG-UHFFFAOYSA-N 0.000 abstract 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000080 wetting agent Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/10—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances metallic oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D37/00—Arrangements in connection with fuel supply for power plant
- B64D37/02—Tanks
- B64D37/06—Constructional adaptations thereof
-
- 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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
- C23C22/74—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process for obtaining burned-in conversion coatings
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Electrically insulating coatings are formed on magnetic sheet material containing iron by applying an aqueous solution of 0.5-10 per cent. by weight of aluminium hydrate and 5-50 per cent. of 85 per cent. phosphoric acid, the solution having a pH less than 0.8 and the ratio of phosphoric acid to aluminium hydrate being at least 4.5 : 1, and heating the sheet material and applied solution to 135 DEG -500 DEG C. to drive off water and react the ingredients to form an insulating coating. The solution may also contain a wetting agent such as an alcohol sulphate, alkyl aryl sulphonate or alkyl sulphonate. The solution may be applied by spraying dipping or flow coating.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US244232A US2743203A (en) | 1951-08-29 | 1951-08-29 | Phosphate coating for electrical steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB717627A true GB717627A (en) | 1954-10-27 |
Family
ID=22921914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17727/52A Expired GB717627A (en) | 1951-08-29 | 1952-07-14 | Improvements in or relating to electrically insulating coatings for magnetic sheet material containing iron |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2743203A (en) |
| BE (2) | BE513769A (en) |
| GB (1) | GB717627A (en) |
| NL (2) | NL170624B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2979430A (en) * | 1955-06-04 | 1961-04-11 | Parker Rust Proof Co | Heat resistant phosphate coatings, methods and articles produced therefrom |
| US3114661A (en) * | 1961-04-24 | 1963-12-17 | Lubrizol Corp | Process for producing core laminations |
| US3198674A (en) * | 1962-01-25 | 1965-08-03 | Fiber Products Res Ct Inc | Infrared absorbent aluminum phosphate coatings and method of manufacture |
| DE1234479B (en) * | 1962-02-03 | 1967-02-16 | Metallgesellschaft Ag | Process for the aftertreatment of electrically insulating inorganic cover layers |
| GB1349250A (en) * | 1970-12-11 | 1974-04-03 | Ici Ltd | Coating process |
| US3996073A (en) * | 1974-10-11 | 1976-12-07 | Armco Steel Corporation | Insulative coating for electrical steels |
| US3948786A (en) * | 1974-10-11 | 1976-04-06 | Armco Steel Corporation | Insulative coating for electrical steels |
| IT1115840B (en) * | 1977-03-09 | 1986-02-10 | Centro Speriment Metallurg | SOLUTION OF COATINGS FOR STEELS FOR MAGNETIC USE |
| IN158643B (en) * | 1982-05-12 | 1986-12-27 | Westinghouse Electric Corp | |
| US5955201A (en) * | 1997-12-19 | 1999-09-21 | Armco Inc. | Inorganic/organic insulating coating for nonoriented electrical steel |
| WO2001087798A2 (en) * | 2000-05-19 | 2001-11-22 | The University Of British Columbia | Process for making chemically bonded composite hydroxide ceramics |
| CN102433055B (en) | 2010-09-29 | 2014-07-23 | 宝山钢铁股份有限公司 | Chromium-free insulation coating material for non-oriented silicon steel |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2120212A (en) * | 1936-01-10 | 1938-06-07 | Curtin Howe Corp | Phosphated metal coating |
| US2357269A (en) * | 1942-04-22 | 1944-08-29 | David A Russell | Art of treating ferrous metal articles |
| US2501846A (en) * | 1945-10-03 | 1950-03-28 | Armco Steel Corp | Production of silicon steel sheet stock having the property of high surface resistivity |
| NL66964C (en) * | 1946-04-03 | |||
| US2501349A (en) * | 1946-05-10 | 1950-03-21 | Westinghouse Electric Corp | Insulation for magnetic material |
| FR954618A (en) * | 1946-10-24 | 1950-01-04 | ||
| US2564864A (en) * | 1948-07-02 | 1951-08-21 | Parker Rust Proof Co | Method of and solution for increasing resistance to corrosion |
-
0
- NL NL80923D patent/NL80923C/xx active
- NL NLAANVRAGE7008624,A patent/NL170624B/en unknown
- BE BE513679D patent/BE513679A/xx unknown
- BE BE513769D patent/BE513769A/xx unknown
-
1951
- 1951-08-29 US US244232A patent/US2743203A/en not_active Expired - Lifetime
-
1952
- 1952-07-14 GB GB17727/52A patent/GB717627A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE513679A (en) | |
| BE513769A (en) | |
| NL170624B (en) | |
| US2743203A (en) | 1956-04-24 |
| NL80923C (en) |
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