EP1482072A2 - Object métallique pourvu d'une couche électrique isolante ainsi que le procédé de fabrication d'une couche électrique isolante - Google Patents
Object métallique pourvu d'une couche électrique isolante ainsi que le procédé de fabrication d'une couche électrique isolante Download PDFInfo
- Publication number
- EP1482072A2 EP1482072A2 EP04010882A EP04010882A EP1482072A2 EP 1482072 A2 EP1482072 A2 EP 1482072A2 EP 04010882 A EP04010882 A EP 04010882A EP 04010882 A EP04010882 A EP 04010882A EP 1482072 A2 EP1482072 A2 EP 1482072A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- zirconium
- metallic
- coating
- electrically insulating
- article according
- 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.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 51
- 239000011248 coating agent Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000008569 process Effects 0.000 title description 6
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910001928 zirconium oxide Inorganic materials 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 230000005291 magnetic effect Effects 0.000 claims description 25
- 238000000137 annealing Methods 0.000 claims description 23
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 19
- 229910052726 zirconium Inorganic materials 0.000 claims description 19
- 239000011265 semifinished product Substances 0.000 claims description 14
- 239000002904 solvent Substances 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 239000003960 organic solvent Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 150000001298 alcohols Chemical class 0.000 claims description 5
- 229910001004 magnetic alloy Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- BSDOQSMQCZQLDV-UHFFFAOYSA-N butan-1-olate;zirconium(4+) Chemical compound [Zr+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] BSDOQSMQCZQLDV-UHFFFAOYSA-N 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 2
- 125000001931 aliphatic group Chemical group 0.000 claims description 2
- 238000011109 contamination Methods 0.000 claims description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 150000003755 zirconium compounds Chemical class 0.000 claims description 2
- 239000000243 solution Substances 0.000 description 32
- 239000000395 magnesium oxide Substances 0.000 description 11
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 11
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 11
- 239000010410 layer Substances 0.000 description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 9
- 239000001257 hydrogen Substances 0.000 description 9
- 229910052739 hydrogen Inorganic materials 0.000 description 9
- -1 organometallic magnesium compounds Chemical class 0.000 description 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 7
- 238000004080 punching Methods 0.000 description 7
- 229910052749 magnesium Inorganic materials 0.000 description 6
- 239000011777 magnesium Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 229910000640 Fe alloy Inorganic materials 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 5
- CRGZYKWWYNQGEC-UHFFFAOYSA-N magnesium;methanolate Chemical compound [Mg+2].[O-]C.[O-]C CRGZYKWWYNQGEC-UHFFFAOYSA-N 0.000 description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical group CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 239000000543 intermediate Substances 0.000 description 2
- XPGAWFIWCWKDDL-UHFFFAOYSA-N propan-1-olate;zirconium(4+) Chemical compound [Zr+4].CCC[O-].CCC[O-].CCC[O-].CCC[O-] XPGAWFIWCWKDDL-UHFFFAOYSA-N 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- HAIMOVORXAUUQK-UHFFFAOYSA-J zirconium(iv) hydroxide Chemical class [OH-].[OH-].[OH-].[OH-].[Zr+4] HAIMOVORXAUUQK-UHFFFAOYSA-J 0.000 description 2
- 230000001464 adherent effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000010022 rotary screen printing Methods 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Images
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
- H01F1/16—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 in the form of sheets
- H01F1/18—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 in the form of sheets with insulating coating
-
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
- C23C18/1208—Oxides, e.g. ceramics
- C23C18/1216—Metal oxides
-
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/1229—Composition of the substrate
- C23C18/1241—Metallic substrates
Definitions
- the invention relates to a metallic article, in particular a magnetic semi-finished with an electric is provided insulating coating. Furthermore it concerns the invention a method for producing an electrical insulating coating.
- Magnesium oxide coatings have been known for a long time and were described for the first time in US 2,796,364. There, organometallic magnesium compounds are produced, which in solvents, especially in organic Solvents to be dissolved and applied to a metallic surface be applied. This coating will follow annealed on the metallic surface, leaving the solvent components disappear and on the metallic Surface a thin magnesium oxide coating remains. This magnesium oxide coating is created by the glow accompanying calcination.
- a magnetic semi-finished product with an electrically insulating Coating is known, for example, from EP 0 597 284 B1. There, inter alia, a coating is described, which consists of magnesium oxide.
- Magnesium oxide coatings have a Annealing resistance of only a maximum of 1000 ° C.
- a big disadvantage with this procedure is that these Layer has a low temperature resistance. at Annealing under an atmosphere of pure hydrogen with A sufficiently low dew point is reached the boiling point of magnesium to a pronounced Layer degradation of the insulation by reduction of the magnesium oxide and then evaporating the magnesium metal formed.
- Dew point is understood here and below to mean the temperature, in which the gaseous water vapor content of the annealing atmosphere condensed.
- Object of the present invention is therefore a novel to provide high temperature resistant electrically insulating coating, in particular a magnetic semi-finished product with a electrically insulating high temperature resistant coating provide. Furthermore, it is the task of the present Invention to provide a novel process with the metallic Objects, in particular magnetic semi-finished products with a high temperature resistant, electrically insulating coating can be provided.
- this object is achieved by a metallic object having an electrically insulating, high-temperature-resistant coating of zirconium oxide.
- Zirconium oxide (ZrO 2 ) is thermodynamically much more stable than magnesium oxide (MgO), which is described, for example, in "J. Barin et al., Thermochemical Properties of Inorganic Substances, Springer-Verlag, Berlin 1977".
- this coating becomes magnetic semifinished used.
- the magnetic semi-finished product has the shape of tapes, sheets or strips and typically becomes assembled into laminated cores.
- the coating of zirconium oxide is particularly suitable for nickel-iron alloys, which essentially consists of between 36.0 and 82.0 percent by weight Nickel, rest of iron.
- These nickel-iron alloys usually require a magnetic Final annealing at temperatures above 1000 ° C.
- the coating densities of metallic zirconium ⁇ here vary between 0.2 ⁇ ⁇ ⁇ 1.2 grams per m 2 metal surface. Typically, coatings are provided with occupancy densities of 0.4 ⁇ ⁇ ⁇ 0.6 gram per m 2 metal surface.
- the coating densities ⁇ are an indirect and manageable measure of the coating thickness d. Since there is no suitable measuring method for the coating thicknesses, the typical way is to determine the content of metallic zirconium on the treated surface quantitatively.
- a zirconium alkylate is typically provided here, which is dissolved in an organic solvent.
- the zirconium alkylate is preferably zirconium butylate or zirconium propylate, in an anhydrous organic solvent is solved.
- organic solvents are alcohols or mixtures from alcohols into consideration. Particularly suitable the corresponding alcohols or mixtures of alcohols the correspond to the alkylates. That is a propanol or a butanol is particularly suitable for the solution of zirconium propylate or zirconium butylate.
- Low-boiling-point petrol is understood to mean a specific gasoline fraction with a defined sphere of influence.
- the coating thickness from the concentration of the solution used, whose Viscosity and the flow rate of the coated Semi-finished dependent. This typically involves coating solutions used that is less than 1 percent by weight Containing zirconium, typically 0.3 weight percent solutions Zirconium propylate in n-propanol.
- the coating solution via a capillary soaked distributor felt applied the semi-finished or after the free passage of the Semi-finished product through the solution between two suitable squeezing rollers guided. This becomes the entrained amount of solution limited to the desired level.
- the layer thickness is in this case by the concentration of the solution through which Type of distribution felt used as well as by the used Profile of the squeezing rollers intended.
- the to be coated Semi-finished products also with higher concentrated coating solution Mistake.
- the applied solution with an inert gas blown off.
- This solution can be processed, the about 2 weight percent or more zirconium.
- Solutions are processed as solvents contain aliphatic ether alcohols. The advantage of this variant is the relatively high throughput speed. A large-scale rational procedure is thereby made possible.
- the solvent consumption be significantly reduced and thus the Coating be carried out very efficiently.
- the thus coated semi-finished products are without major problems storable. It comes under normal conditions to no corrosion of the semifinished product through the coating. It also happens no other type of implementation of the coating in the frame the usual processing. The coating reacts not chemically with those in further processing usually used punching or lubricating oils.
- the punched rings had an outside diameter of 14.8 mm, one Inner diameter of 10.5 mm and a thickness of 0.20 mm.
- the intercept corresponds to the hysteresis losses per cycle.
- the slope B determines the eddy current losses in the case of classic eddy current losses.
- the slope B increases in such a plot.
- the hysteresis losses P h are generally smaller, the higher the annealing temperature and annealing time of the magnetic annealing and the better the dew point of the hydrogen atmosphere.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Thermal Sciences (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
- Chemical Treatment Of Metals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10324910 | 2003-05-30 | ||
| DE2003124910 DE10324910B4 (de) | 2003-05-30 | 2003-05-30 | Metallisches Halbzeug mit elektrisch isolierender Beschichtung sowie Verfahren zur Herstellung einer elektrisch isolierenden Beschichtung |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1482072A2 true EP1482072A2 (fr) | 2004-12-01 |
| EP1482072A3 EP1482072A3 (fr) | 2008-07-30 |
| EP1482072B1 EP1482072B1 (fr) | 2014-04-16 |
Family
ID=33103672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04010882.1A Expired - Lifetime EP1482072B1 (fr) | 2003-05-30 | 2004-05-06 | Object métallique pourvu d'une couche électrique isolante ainsi que le procédé de fabrication d'une couche électrique isolante |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1482072B1 (fr) |
| DE (1) | DE10324910B4 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020134300A1 (de) | 2020-12-18 | 2022-06-23 | Vacuumschmelze Gmbh & Co. Kg | Wasserbasierte alkalische Zusammensetzung zum Bilden einer Isolationsschicht eines Glühseparators, beschichtete weichmagnetische Legierung und Verfahren zum Herstellen eines beschichteten weichmagnetischen Bandes |
| US11827961B2 (en) | 2020-12-18 | 2023-11-28 | Vacuumschmelze Gmbh & Co. Kg | FeCoV alloy and method for producing a strip from an FeCoV alloy |
| DE102022120602A1 (de) | 2022-08-16 | 2024-02-22 | Vacuumschmelze Gmbh & Co. Kg | Verfahren zum Herstellen eines Blechs aus einer weichmagnetischen Legierung für ein Blechpaket |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2796364A (en) * | 1952-10-02 | 1957-06-18 | Lydia A Suchoff | Method of forming an adherent film of magnesium oxide |
| JPS56133801A (en) * | 1980-03-21 | 1981-10-20 | Res Inst Electric Magnetic Alloys | Manufacture of insulating soft magnetic plate |
| JPS63310969A (ja) * | 1986-05-09 | 1988-12-19 | Toray Ind Inc | ジルコニア被覆材料の製造方法 |
| US4876117A (en) * | 1988-02-04 | 1989-10-24 | Domain Technology | Method and coating transition metal oxide on thin film magnetic disks |
| JP2512402B2 (ja) * | 1988-06-22 | 1996-07-03 | 日新製鋼株式会社 | ジルコニア膜の製造方法 |
| DE4238150A1 (de) * | 1992-11-12 | 1994-05-19 | Vacuumschmelze Gmbh | Isolationsverfahren für weichmagnetische Bänder |
| DE19943789A1 (de) * | 1999-09-13 | 2001-03-15 | Fraunhofer Ges Forschung | Verfahren zur Abscheidung von Zirkonoxid-Schichten unter Verwendung von löslichen Pulvern |
-
2003
- 2003-05-30 DE DE2003124910 patent/DE10324910B4/de not_active Expired - Fee Related
-
2004
- 2004-05-06 EP EP04010882.1A patent/EP1482072B1/fr not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| None |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020134300A1 (de) | 2020-12-18 | 2022-06-23 | Vacuumschmelze Gmbh & Co. Kg | Wasserbasierte alkalische Zusammensetzung zum Bilden einer Isolationsschicht eines Glühseparators, beschichtete weichmagnetische Legierung und Verfahren zum Herstellen eines beschichteten weichmagnetischen Bandes |
| EP4020507A1 (fr) | 2020-12-18 | 2022-06-29 | Vacuumschmelze GmbH & Co. KG | Composition alcaline à base d'eau permettant de former une couche isolante d'un séparateur de recuit; alliage magnétique doux enduit et procédé de fabrication d'un ruban magnétique doux enduit |
| US11827961B2 (en) | 2020-12-18 | 2023-11-28 | Vacuumschmelze Gmbh & Co. Kg | FeCoV alloy and method for producing a strip from an FeCoV alloy |
| DE102022120602A1 (de) | 2022-08-16 | 2024-02-22 | Vacuumschmelze Gmbh & Co. Kg | Verfahren zum Herstellen eines Blechs aus einer weichmagnetischen Legierung für ein Blechpaket |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10324910B4 (de) | 2005-05-25 |
| DE10324910A1 (de) | 2004-12-23 |
| EP1482072A3 (fr) | 2008-07-30 |
| EP1482072B1 (fr) | 2014-04-16 |
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