WO2012057168A1 - 電磁鋼板及びその製造方法 - Google Patents
電磁鋼板及びその製造方法 Download PDFInfo
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- WO2012057168A1 WO2012057168A1 PCT/JP2011/074590 JP2011074590W WO2012057168A1 WO 2012057168 A1 WO2012057168 A1 WO 2012057168A1 JP 2011074590 W JP2011074590 W JP 2011074590W WO 2012057168 A1 WO2012057168 A1 WO 2012057168A1
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- 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
- C09D5/08—Anti-corrosive paints
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
- C09D5/084—Inorganic compounds
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- 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
- C09D5/08—Anti-corrosive paints
-
- 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
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- 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
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- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
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- 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
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- 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
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- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
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- 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
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- 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
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- 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
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/254—Polymeric or resinous material
Definitions
- the present invention relates to an electrical steel sheet used as an iron core material for electrical equipment, for example, and a method for producing the same, and has good insulation, particularly corrosion resistance and adhesion in a wet environment, and chromic acid.
- the present invention relates to a magnetic steel sheet having an insulating coating that does not contain bismuth and a method for producing the same.
- a hoop-shaped electrical steel sheet is punched into a predetermined shape, and the hoop-shaped electrical steel sheets are laminated and fixed to produce an iron core. And after winding a copper wire around teeth etc., a varnish is impregnated or a powder coating is sprayed. Then, a copper wire connection terminal, flange, bearing, etc. are attached and fixed to the case.
- a hoop-shaped electrical steel sheet is prepared in advance, or the copper wire winding process after punching is performed collectively to improve efficiency.
- the surface of the electromagnetic steel sheet used for the iron core of electrical equipment is coated with an insulating film to reduce eddy current loss. Film properties such as punchability and heat resistance are required.
- This insulating coating generally contains a mixture mainly composed of an inorganic acid salt such as chromate or phosphate and an organic resin. In recent years, in consideration of the environment, an insulating coating containing no chromium has been demanded.
- the insulation coating of magnetic steel sheets is required to have higher corrosion resistance than ever before, and in particular, the improvement of corrosion resistance in a humid environment is required.
- the electromagnetic steel sheet having a coating mainly composed of a fluororesin on its surface as an insulating coating has a problem that the cost is high and the varnish after punching does not adhere.
- an object of the present invention is to provide an electrical steel sheet having better corrosion resistance under a wet environment and better coating properties, and a method for producing the same. There is to do.
- the gist of the present invention is as follows. (1) On the surface of the steel plate, One or two or more mixtures or copolymers selected from the group consisting of 100 parts by mass of a metal phosphate and an acrylic resin, an epoxy resin and a polyester resin having an average particle size of 0.05 ⁇ m to 0.50 ⁇ m A mixture composed of 1 part by weight to 50 parts by weight of an organic resin consisting of: 100 parts by weight; Copolymer of fluoroolefin and ethylenically unsaturated compound as solid content: 0.5 to 10 parts by mass; An electrical steel sheet characterized by being coated with an insulating coating mixed with.
- the steel plate On the surface of the steel plate It consists of 100 parts by mass of colloidal silica and one or more mixtures or copolymers selected from the group consisting of acrylic resins, epoxy resins and polyester resins having an average particle size of 0.05 ⁇ m to 0.50 ⁇ m.
- An electrical steel sheet characterized by being coated with an insulating coating mixed with.
- colloidal silica With respect to 100 parts by mass of colloidal silica, one or a mixture of two or more selected from the group consisting of acrylic resins, epoxy resins and polyester resins having an average particle size of 0.05 ⁇ m to 0.50 ⁇ m
- Producing a treatment liquid Applying the prepared treatment liquid to the surface of the steel sheet; And a step of baking and drying the steel sheet coated with the treatment liquid at an ultimate temperature of 200 ° C. to 300 ° C. for 15 seconds to 60 seconds.
- an electrical steel sheet coated with an insulating coating that has good corrosion resistance in a wet environment and that retains coating properties necessary for electrical steel sheets such as adhesion, space factor, and punchability. be able to.
- the steel plate used in this embodiment is preferably a non-oriented electrical steel plate containing Si: 0.1 mass% or more and Al: 0.05 mass% or more.
- Si content increases, the electrical resistance increases and the magnetic properties improve, but at the same time, the brittleness increases and the rollability decreases, so the content is preferably less than 4.0% by mass.
- Al content increases, the magnetic properties are improved, but the rollability is lowered, so less than 3.0% by mass is preferable.
- Mn, Sn, Cr, and P may be contained in the range of 0.01% by mass to 1.0% by mass.
- other typical elements such as S, N, and C may be contained, and the content of these elements is preferably less than 100 ppm, and preferably less than 20 ppm.
- the slab is heated to 1000 ° C. to 1250 ° C., hot-rolled and wound into a coil shape, and annealed in the range of 800 ° C. to 1050 ° C. in the state of a hot-rolled sheet as necessary.
- a steel plate having the above components is produced.
- the surface of the steel sheet on which the insulating film is to be formed is subjected to any pretreatment such as degreasing treatment with alkali or pickling treatment with hydrochloric acid, sulfuric acid, phosphoric acid, etc. before applying the treatment liquid described later.
- it may be a surface state as it is after the finish annealing without performing the pretreatment.
- the surface roughness is such that the center line average roughness (Ra) in the rolling direction and the direction perpendicular to the rolling direction is 1.0 ⁇ m or less, more preferably 0.1 ⁇ m or more and 0.5 ⁇ m. It should be finished as follows.
- the insulating coating formed on the surface of the steel sheet will be described.
- the insulating coating is composed mainly of a phosphate metal salt or colloidal silica.
- the metal phosphate is a solid content when an aqueous solution containing phosphoric acid and metal ions as main components is dried, and the type of phosphoric acid is not particularly limited, Orthophosphoric acid, metaphosphoric acid, polyphosphoric acid and the like are preferable.
- metal ions such as Li, Al, Mg, Ca, Sr, Ti, Ni, Mn, and Co are good, and particularly, ions of Al, Ca, Mn, and Ni are good.
- orthophosphoric acid is preferably mixed with metal ion oxide, carbonate, or hydroxide.
- the metal phosphates may be used alone or in combination of two or more. Moreover, only a phosphoric acid metal salt may be sufficient, and what added additives, such as phosphonic acid and boric acid, may be used.
- the colloidal silica preferably has an average particle size of 5 nm to 40 nm and an Na content of 0.5% by mass or less, and more preferably an Na content of 0.01% by mass to 0.3% by mass.
- the average particle size of the colloidal silica used in the present embodiment is a number average particle size, which is measured by a nitrogen adsorption method.
- An organic resin made of a mixture or copolymer is thinly formed on the surface of the steel sheet as an insulating film.
- the film thickness of the insulating coating is preferably about 0.3 ⁇ m to 3.0 ⁇ m, more preferably 0.5 ⁇ m to 1.5 ⁇ m.
- acrylic resin epoxy resin, and polyester resin used in this embodiment
- a commercially available organic resin emulsion may be used.
- Particularly suitable for acrylic resins are methyl acrylate, ethyl acrylate, n-butyl acrylate, i-butyl acrylate, n-octyl acrylate, i-octyl acrylate, 2-ethylhexyl acrylate, n- Nonyl acrylate, n-decyl acrylate, n-dodecyl acrylate, etc. may be mentioned.
- monomers having a functional group are preferably those obtained by copolymerizing acrylic acid, methacrylic acid, maleic acid, maleic anhydride, fumaric acid, crotonic acid, and itaconic acid.
- 2-hydroxylethyl (meth) acrylate, 2-hydroxylpropyl (meth) acrylate, 3-hydroxylbutyl (meth) acrylate, 2-hydroxylethyl (meth) allyl ether, etc. are copolymerized as monomers having hydroxyl groups. Are preferred.
- an epoxy resin for example, an amine-modified epoxy resin reacted with carboxylic anhydride, specifically, bisphenol A-diglycidyl ether, caprolactone ring-opening adduct of bisphenol A-diglycidyl ether, Bisphenol F-diglycidyl ether, bisphenol S-diglycidyl ether, novolac glycidyl ether, dimer acid glycidyl ether and the like are suitable.
- the modifying amines are isopropanolamine, monopropanolamine, monobutanolamine, monoethanolamine, diethylenetriamine, ethylenediamine, butalamine, propylamine, isophoronediamine, tetrahydrofurfurylamine, xylenediamine, hexylamine, nonylamine, triethylene. Tetramine, tetramethylenepentamine, diaminodiphenyl sulfone and the like are preferable.
- succinic anhydride, itaconic anhydride, maleic anhydride, citraconic anhydride, phthalic anhydride, trimellitic anhydride and the like are preferable as carboxylic anhydride.
- polyester resins include terephthalic acid, isophthalic acid, orthophthalic acid, naphthalenedicarboxylic acid, biphenyldicarboxylic acid, succinic acid, adipic acid, sebacic acid, fumaric acid, maleic acid, maleic anhydride, itaconic acid, citraconic acid, etc.
- Dicarboxylic acid ethylene glycol, 1,2-propylene glycol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, neopentyldiol 1,6-hexanediol, triethylene glycol, What reacted with glycols, such as a dipropylene glycol and polyethyleneglycol, is suitable. Further, acrylic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, citraconic acid, methacrylic anhydride and the like may be graft polymerized to these polyester resins.
- the organic resin emulsion may be one or a mixture of two or more selected from the group consisting of the acrylic resin, epoxy resin, and polyester resin, and may be a copolymer of these resins.
- the average particle size of the organic resin emulsion is in the range of 0.05 ⁇ m to 0.50 ⁇ m.
- the average particle size of the organic resin emulsion is the number average particle size and is measured by a laser diffraction method. If the average particle size is 0.05 ⁇ m or less, it tends to agglomerate in the treatment liquid and the uniformity of the insulating coating may be reduced. If the average particle size exceeds 0.50 ⁇ m, the stability of the solution may be reduced. is there.
- the average particle diameter of the organic resin emulsion is more preferably in the range of 0.1 ⁇ m to 0.3 ⁇ m.
- the mixing ratio between the metal phosphate and the organic resin composed of one or more mixtures or copolymers selected from the group consisting of the acrylic resin, epoxy resin, and polyester resin described above is phosphoric acid.
- the organic resin is used in an amount of 1 to 50 parts by mass with respect to 100 parts by mass of the metal salt. If the mixing ratio of the organic resin is less than 1 part by mass, the resin concentration is too small and aggregation is likely to occur, and the stability of the solution deteriorates. If it exceeds 50 parts by mass, the heat resistance may be inferior. Because.
- the mixing ratio of the colloidal silica and the organic resin is 40 parts by mass to 400 parts by mass of the organic resin with respect to 100 parts by mass of the colloidal silica. This is because if the mixing ratio of the organic resin is less than 40 parts by mass, the film forming property is poor and the insulating coating may be powdered, and if it exceeds 400 parts by mass, the heat resistance may be inferior.
- a copolymer of a fluoroolefin and an ethylenically unsaturated compound is included in the insulating coating.
- the copolymer of a fluoroolefin and an ethylenically unsaturated compound used in the present embodiment is a copolymer obtained by copolymerizing a fluoroolefin with a monomer, oligomer or low molecular weight polymer having a radically polymerizable unsaturated group.
- the fluoroolefin is a compound having an unsaturated hydrocarbon structure in which a fluorine atom is bonded directly to the carbon skeleton of the olefin, and at least one of the groups bonded to the carbon forming the unsaturated bond is a fluorine atom.
- An ethylenically unsaturated compound is a compound having a vinyl group in its structure and capable of forming a copolymer with a fluoroolefin, generally called a vinyl ether, and a monomer, oligomer or low molecule having various functional groups. It is a polymer.
- the monomer are preferably styrene, vinyl acetate, polypropylene glycol acrylate, methoxypolyethylene methacrylate, vinyl alkyl ether, vinyl alkylene ether, isoprene, acrylonitrile and the like. Not only these monomers but oligomers having a similar structure or low molecular weight polymers may be used.
- such a monomer, oligomer, or low molecular polymer into which various functional groups are introduced may be used.
- functional groups include alkyl groups, hydroxyl group-substituted alkylene groups, phenyl groups, benzyl groups, cycloaliphatic groups, acetyl groups, or crosslinkable reactive groups such as carboxyl groups, hydroxyl groups, epoxy groups, and amino groups. good.
- alkyl group and alkylene group include a linear alkyl group having 1 to 10 carbon (C) connected, and examples of the alkylene group include a hydroxyl linear alkylene having a hydroxyl group at the terminal having 1 to 14 carbons. Group.
- the functional group of the present embodiment does not include a fluoro group or other functional group having a fluorine atom.
- ethylenically unsaturated compounds monomers, oligomers or low molecular weight polymers having these functional groups are added to glycidyl methacrylate, hydroxymethyl acrylate, N, N dimethylaminoethyl methacrylate, diacetone acrylamide, bradiene, chloroprene, etc. It is also possible to use a reaction product.
- copolymers of fluoroolefin and ethylenically unsaturated compound may be used alone, or may be a mixture of two or more types having different functional groups or different molecular weights.
- the particle size of the copolymer of fluoroolefin and ethylenically unsaturated compound is not particularly limited, but is preferably in the range of 0.05 ⁇ m to 0.50 ⁇ m, more preferably in the range of 0.05 ⁇ m to 0.20 ⁇ m. It is. If it is less than 0.05 ⁇ m, the solution tends to aggregate in the solution and the stability of the solution may be deteriorated. As described above, when the stability of the solution deteriorates, agglomerates are generated in the solution, and piping and pumps may be clogged when the solution is disposed. Further, when the aggregates enter the insulating film, there is a possibility that a defect occurs in the insulating film. If it exceeds 0.50 ⁇ m, it tends to peel off when an insulating coating is formed, and there is a risk of powdering. In addition, when the particle size is 0.20 ⁇ m or less, a beautiful appearance is easily obtained.
- the mixing ratio of the copolymer of the fluoroolefin and the ethylenically unsaturated compound with respect to the mixture of the metal phosphate and the organic resin is converted to the solid content with respect to 100 parts by mass of the solid content of the mixture.
- the mixing ratio of the copolymer of fluoroolefin and ethylenically unsaturated compound with respect to the mixture of colloidal silica and the above-mentioned organic resin is also converted into solid content with respect to 100 parts by mass of the solid content of the mixture. 0.5 parts by mass to 10 parts by mass. This is because if the mixing ratio of the copolymer is less than 0.5 parts by mass, the effect of improving the corrosion resistance does not sufficiently appear, and if it exceeds 10 parts by mass, the stability of the solution deteriorates.
- the insulating coating may contain components other than a mixture of a metal phosphate or colloidal silica and the organic resin described above, and a copolymer of a fluoroolefin and an ethylenically unsaturated compound.
- a metal phosphate or colloidal silica and the organic resin described above and a copolymer of a fluoroolefin and an ethylenically unsaturated compound.
- carbonates, hydroxides, oxides, inorganic compounds such as titanates and tungstates, or organic low-molecular compounds such as polyols, cellosolves, carboxylic acids, ethers, and esters can be mixed as additives. Also good.
- the application method is not particularly limited, a roll coater method may be used, and a spray method, a dip method, etc. An application method may be used.
- a heating method in which the treatment liquid is dried and baked a normal radiation furnace or hot air furnace can be used, and an induction heating method or a high-frequency heating method may be used.
- a baking time in the range of 200 ° C. to 380 ° C. is suitably 15 seconds to 60 seconds. More preferably, it is in the range of 260 ° C. to 330 ° C. in the case of an insulating coating containing a metal phosphate.
- an insulating film containing colloidal silica 200 ° C. to 300 ° C. is appropriate, and 240 ° C. to 280 ° C. is more preferable.
- an additive such as a surfactant may be added to the above-described treatment liquid.
- a surfactant an aliphatic polyoxyalkylene ether surfactant is suitable, and other brighteners, preservatives, antioxidants and the like may be added.
- an insulating coating composed of a copolymer of the above fluoroolefin and an ethylenically unsaturated compound, and a mixture of a metal phosphate or colloidal silica and a specific organic resin
- the copolymer is dispersed in the insulating coating.
- the dispersed copolymer of fluoroolefin and ethylenically unsaturated compound is concentrated in the vicinity of the surface layer of the insulating coating, and the surface tension of the insulating coating is substantially optimized. As a result, it is considered that the adhesion is maintained and the corrosion resistance in a wet environment is improved.
- a 44 ⁇ m steel plate was prepared.
- the surface roughness of the steel plate it measured using the commercially available surface roughness measuring apparatus according to JIS method (JIS B0601).
- a phosphoric acid metal salt orthophosphoric acid and a metal hydroxide such as Al (OH) 3 , oxide, or carbonate were mixed and stirred to prepare a metal phosphate treatment solution, which was a 40% by mass aqueous solution.
- a metal phosphate treatment solution which was a 40% by mass aqueous solution.
- a 40% by mass magnesium chromate aqueous solution was also prepared.
- colloidal silica a commercially available one having an average particle diameter of 15 nm and a surface modified with aluminum at a concentration of 30% by mass was used.
- the organic resin the following 6 types of organic resins were used as emulsion solutions each having a concentration of 30% by mass. Furthermore, a suitable amount of a viscosity modifier and a surfactant was added to prepare a mixed solution shown in Table 1.
- Acrylic resin 1 Acrylic copolymerized with 30% by weight of methyl methacrylate, 10% by weight of 2-hydroxyethyl methacrylate, 30% by weight of n-butyl acrylate, 10% by weight of styrene monomer, and 20% by weight of isobutyl acrylate Resin
- Acrylic Resin 2 Acrylic Resin Copolymerized with 45% by Mass of Methyl Acrylate, 30% by Mass of Styrene Monomer, 20% by Mass of Isobutyl Acrylate, and 15% by Mass of Maleic Acid
- Epoxy Resin 1 Carboxyl group-modified epoxy resin obtained by modifying bisphenol A with triethanolamine and then reacted with succinic anhydride (4)
- Epoxy resin 2 Ethylene propylene block polymer is mixed with phenol novolac type epoxy resin, and nonylphenyl ether ethylene Oh Side-added epoxy resin made self-emulsifying (5)
- the average particle sizes of the acrylic resin 1 and the acrylic resin 2 were 0.25 ⁇ m and 0.64 ⁇ m, respectively. Moreover, the average particle diameters of the epoxy resin 1 and the epoxy resin 2 were 0.33 ⁇ m and 0.76 ⁇ m, respectively. The average particle size of the polyester resin was 0.35 ⁇ m, and the average particle size of the aqueous polyurethane was 0.12 ⁇ m. In addition, the resin mass part shown in Table 1 is solid content conversion.
- mixture No. 3 1.5 parts by mass of phosphonic acid as an additive was added to 100 parts by mass of manganese phosphate.
- the copolymer 1 shown in Table 2 is a copolymer of tetrafluoroethylene and a linear alkyl vinyl ether having 6 carbon atoms
- the copolymer 2 is a copolymer of tetrafluoroethylene and methyl vinyl ether. It is.
- Copolymer 3 is obtained by copolymerizing chlorotrifluoroethylene, propylene alkyl vinyl ether and hydroxyhexyl vinyl ether and then substituting the hydroxyl group with a carboxyl group.
- Copolymer 4 is obtained by copolymerizing chlorotrifluoroethylene and hydroxydodecyl vinyl ether by known methods. As a known method for copolymerization, for example, the method disclosed in Japanese Patent No.
- the fluororesin 1 is polytetrafluoroethylene
- the fluororesin 2 is polyvinylidene fluoride
- the fluororesin 3 is a perfluoroalkoxyalkane.
- a roll coater method was used to apply the treatment liquid, and the roll reduction amount and the like were adjusted so that the film thickness of the insulating coating was about 0.8 ⁇ m. Drying was performed using a radiation furnace, and the furnace temperature setting was adjusted so that the predetermined heating conditions shown in Table 2 were obtained. Although the ultimate plate temperature and baking time differed depending on the sample, the baking temperature was adjusted to be 5 seconds to 70 seconds when the heating temperature was in the range of 180 ° C. to 400 ° C.
- the average particle diameter was measured in advance. After diluting the organic resin emulsion with distilled water, the fluororesin powder is dispersed in distilled water with an ultrasonic cleaner for about 1 minute, and is then granulated by a commercially available laser diffraction method according to the JIS method (JIS Z8826). The number average particle diameter was measured with a diameter measuring device.
- a 5% NaCl aqueous solution was naturally dropped to a sample for 1 hour in an atmosphere at 35 ° C. in accordance with a salt spray test (JIS Z2371) of JIS method.
- JIS Z2371 a salt spray test
- the sample was held at a temperature of 60 ° C. and a humidity of 40% for 3 hours, held at a temperature of 40 ° C. and a humidity of 95% for 3 hours, and this was repeated as 5 cycles.
- the rusting area of the sample was evaluated by 10 points.
- the evaluation criteria are as follows.
- the contact angle was measured using a contact angle meter PG-X manufactured by Matsubo.
- the measured value is an average value measured 10 times.
- the glossy, smooth and uniform is 5; hereinafter, the glossy but slightly inferior uniformity is 4; the slightly glossy and smooth but inferior uniformity is 3; 2 with a little inferior smoothness and inferior uniformity, and 1 with inferior gloss, uniformity and smoothness.
- sample numbers corresponding to the examples of the present invention are shown.
- 1-No. All 9 were found to be excellent in corrosion resistance in a wet environment. Furthermore, sample no. 1-No. No. 9 was found to have excellent insulation, adhesion and appearance in addition to corrosion resistance.
- the corrosion resistance under a wet environment is good in the production of the laminated iron core, and the characteristics relating to other insulating coatings of the electromagnetic steel sheet are also good.
- an electromagnetic steel sheet having excellent corrosion resistance in a wet environment and excellent properties such as adhesion, space factor, and punchability as an iron core material of an electric device.
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Abstract
Description
(1)鋼板の表面に、
リン酸金属塩100質量部と、平均粒径が0.05μm~0.50μmのアクリル系樹脂、エポキシ系樹脂及びポリエステル系樹脂からなる群から選ばれる1種又は2種以上の混合物又は共重合物からなる有機樹脂1質量部~50質量部とから構成される混合物:100質量部と、
固形分としてフルオロオレフィンとエチレン性不飽和化合物との共重合体:0.5質量部~10質量部と、
が混合された絶縁被膜が被覆されていることを特徴とする電磁鋼板。
(2)鋼板の表面に、
コロイダルシリカ100質量部と、平均粒径が0.05μm~0.50μmのアクリル系樹脂、エポキシ系樹脂及びポリエステル系樹脂からなる群から選ばれる1種又は2種以上の混合物又は共重合物からなる有機樹脂40質量部~400質量部とから構成される混合物:100質量部と、
固形分としてフルオロオレフィンとエチレン性不飽和化合物との共重合体:0.5質量部~10質量部と、
が混合された絶縁被膜が被覆されていることを特徴とする電磁鋼板。
(3)リン酸金属塩100質量部に対し、平均粒径が0.05μm~0.50μmのアクリル系樹脂、エポキシ系樹脂及びポリエステル系樹脂からなる群から選ばれる1種又は2種以上の混合物又は共重合物からなる有機樹脂を固形分で1質量部~50質量部混合する工程と、
前記リン酸金属塩と前記有機樹脂との混合物の固形分100質量部に対し、フルオロオレフィンとエチレン性不飽和化合物との共重合体を固形分に換算して0.5質量部~10質量部混合した処理液を作製する工程と、
前記作製した処理液を鋼板の表面に塗布する工程と、
前記処理液が塗布された鋼板を200℃~380℃の到達温度で15秒間~60秒間焼付け乾燥する工程と、を有することを特徴とする電磁鋼板の製造方法。
(4)コロイダルシリカ100質量部に対し、平均粒径が0.05μm~0.50μmのアクリル系樹脂、エポキシ系樹脂及びポリエステル系樹脂からなる群から選ばれる1種又は2種以上の混合物又は共重合物からなる有機樹脂を固形分で40質量部~400質量部混合する工程と、
前記コロイダルシリカと前記有機樹脂との混合物の固形分100質量部に対し、フルオロオレフィンとエチレン性不飽和化合物との共重合体を固形分に換算して0.5質量部~10質量部混合した処理液を作製する工程と、
前記作製した処理液を鋼板の表面に塗布する工程と、
前記処理液が塗布された鋼板を200℃~300℃の到達温度で15秒間~60秒間焼付け乾燥する工程と、を有することを特徴とする電磁鋼板の製造方法。
まず、本実施形態で使用する鋼板は、Si:0.1質量%以上、Al:0.05質量%以上含有する無方向性電磁鋼板用の鋼板が好適である。Siは、含有量が増加するに従って電気抵抗が大きくなり磁気特性が向上するが、同時に脆性が増大し圧延性が低下するため、4.0質量%未満が良い。同様に、Alの含有量が増加すると磁気特性が向上するが、圧延性が低下するため、3.0質量%未満が良い。本実施形態で用いられる鋼板では、Si、Al以外に、MnやSn、Cr、及びPも0.01質量%から1.0質量%の範囲で含有してもよい。さらに、その他のSやN、Cといった典型元素を含有してもよく、これらの元素の含有量は100ppm未満が良く、好ましくは20ppm未満が良い。
(2)アクリル系樹脂2:メチルアクリレート45質量%、スチレンモノマー30質量%、イソブチルアクリレート20質量%、及びマレイン酸15質量%を共重合させたアクリル系樹脂
(3)エポキシ系樹脂1:ビスフェノールAをトリエタノールアミンで変性した後、無水コハク酸を反応させたカルボキシル基変性エポキシ系樹脂
(4)エポキシ系樹脂2:フェノールノボラック型エポキシ樹脂にエチレンプロピレンブロックポリマーを混合してノニルフェニルエーテルエチレンオキサイドを付加し、自己乳化型としたエポキシ系樹脂
(5)ポリエステル系樹脂:ジメチルテレフタレート35質量%とネオペンチルグリコール35質量%とを共重合させた後、フマル酸15質量%と無水トリメリット酸15質量%とをグラフト重合させた、カルボキシル基含有ポリエステル系樹脂
(6)水性ポリウレタン:既知の方法でヘキサメチレンジイソシアネートとポリエチレングリコールから合成された水性ポリウレタン
絶縁性については、JIS法(JIS C2550)に準じて測定した層間抵抗を基に、5Ω・cm2/枚未満を×とし、5Ω・cm2/枚~10Ω・cm2/枚を△とした。そして、10Ω・cm2/枚~50Ω・cm2/枚を○とし、50Ω・cm2/枚以上を◎とした。
9:錆発生が極少量(面積率0.1%以下)
8:錆の発生した面積率=0.1%超過0.25%以下
7:錆の発生した面積率=0.25%超過0.50%以下
6:錆の発生した面積率=0.50%超過1%以下
5:錆の発生した面積率=1%超過2.5%以下
4:錆の発生した面積率=2.5%超過5%以下
3:錆の発生した面積率=5%超過10%以下
2:錆の発生した面積率=10%超過25%以下
1:錆の発生した面積率=25%超過50%以下
Claims (4)
- 鋼板の表面に、
リン酸金属塩100質量部と、平均粒径が0.05μm~0.50μmのアクリル系樹脂、エポキシ系樹脂及びポリエステル系樹脂からなる群から選ばれる1種又は2種以上の混合物又は共重合物からなる有機樹脂1質量部~50質量部とから構成される混合物:100質量部と、
固形分としてフルオロオレフィンとエチレン性不飽和化合物との共重合体:0.5質量部~10質量部と、
が混合された絶縁被膜が被覆されていることを特徴とする電磁鋼板。 - 鋼板の表面に、
コロイダルシリカ100質量部と、平均粒径が0.05μm~0.50μmのアクリル系樹脂、エポキシ系樹脂及びポリエステル系樹脂からなる群から選ばれる1種又は2種以上の混合物又は共重合物からなる有機樹脂40質量部~400質量部とから構成される混合物:100質量部と、
固形分としてフルオロオレフィンとエチレン性不飽和化合物との共重合体:0.5質量部~10質量部と、
が混合された絶縁被膜が被覆されていることを特徴とする電磁鋼板。 - リン酸金属塩100質量部に対し、平均粒径が0.05μm~0.50μmのアクリル系樹脂、エポキシ系樹脂及びポリエステル系樹脂からなる群から選ばれる1種又は2種以上の混合物又は共重合物からなる有機樹脂を固形分で1質量部~50質量部混合する工程と、
前記リン酸金属塩と前記有機樹脂との混合物の固形分100質量部に対し、フルオロオレフィンとエチレン性不飽和化合物との共重合体を固形分に換算して0.5質量部~10質量部混合した処理液を作製する工程と、
前記作製した処理液を鋼板の表面に塗布する工程と、
前記処理液が塗布された鋼板を200℃~380℃の到達温度で15秒間~60秒間焼付け乾燥する工程と、を有することを特徴とする電磁鋼板の製造方法。 - コロイダルシリカ100質量部に対し、平均粒径が0.05μm~0.50μmのアクリル系樹脂、エポキシ系樹脂及びポリエステル系樹脂からなる群から選ばれる1種又は2種以上の混合物又は共重合物からなる有機樹脂を固形分で40質量部~400質量部混合する工程と、
前記コロイダルシリカと前記有機樹脂との混合物の固形分100質量部に対し、フルオロオレフィンとエチレン性不飽和化合物との共重合体を固形分に換算して0.5質量部~10質量部混合した処理液を作製する工程と、
前記作製した処理液を鋼板の表面に塗布する工程と、
前記処理液が塗布された鋼板を200℃~300℃の到達温度で15秒間~60秒間焼付け乾燥する工程と、を有することを特徴とする電磁鋼板の製造方法。
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US13/881,804 US10669432B2 (en) | 2010-10-29 | 2011-10-25 | Electrical steel sheet and method of manufacturing the same |
EP11836301.9A EP2634288B1 (en) | 2010-10-29 | 2011-10-25 | Electrical steel sheet and method of manufacturing the same |
KR1020157005414A KR101518691B1 (ko) | 2010-10-29 | 2011-10-25 | 전자기 강판 및 그 제조 방법 |
CN201180052130.4A CN103189544B (zh) | 2010-10-29 | 2011-10-25 | 电磁钢板及其制造方法 |
KR1020137010262A KR101518656B1 (ko) | 2010-10-29 | 2011-10-25 | 전자기 강판 및 그 제조 방법 |
JP2012502381A JP5005844B2 (ja) | 2010-10-29 | 2011-10-25 | 電磁鋼板及びその製造方法 |
PL11836301T PL2634288T3 (pl) | 2010-10-29 | 2011-10-25 | Blacha ze stali elektrotechnicznej oraz sposób jej wytwarzania |
HK13114430.4A HK1187083A1 (en) | 2010-10-29 | 2013-12-31 | Electromagnetic steel sheet and process for production thereof |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016125783A1 (ja) * | 2015-02-05 | 2016-08-11 | 新日鐵住金株式会社 | 電磁鋼板 |
WO2016171104A1 (ja) * | 2015-04-20 | 2016-10-27 | 旭硝子株式会社 | 絶縁被膜付き電磁鋼板および水系表面処理剤 |
KR20170085580A (ko) | 2014-12-26 | 2017-07-24 | 신닛테츠스미킨 카부시키카이샤 | 전자 강판 |
KR20170088389A (ko) | 2014-12-26 | 2017-08-01 | 신닛테츠스미킨 카부시키카이샤 | 전자 강판 |
JP2017141480A (ja) * | 2016-02-08 | 2017-08-17 | 新日鐵住金株式会社 | 電磁鋼板及び電磁鋼板の製造方法 |
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WO2022210962A1 (ja) * | 2021-03-31 | 2022-10-06 | 日本製鉄株式会社 | 無方向性電磁鋼板、及び、その製造方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012011442A1 (ja) * | 2010-07-23 | 2012-01-26 | 新日本製鐵株式会社 | 電磁鋼板及びその製造方法 |
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CN110832112B (zh) * | 2017-07-13 | 2021-12-21 | 日本制铁株式会社 | 方向性电磁钢板 |
EP3943203B1 (en) * | 2019-04-22 | 2024-09-11 | JFE Steel Corporation | Method for producing non-oriented electrical steel sheet |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4919078B1 (ja) | 1970-12-07 | 1974-05-15 | ||
JPS5015016B1 (ja) | 1970-12-29 | 1975-06-02 | ||
JPS58136605A (ja) | 1982-02-05 | 1983-08-13 | Asahi Glass Co Ltd | カルボキシル基含有含フツ素重合体の製造方法 |
JPH0336284A (ja) | 1989-06-30 | 1991-02-15 | Sumitomo Metal Ind Ltd | 歪取焼鈍後の耐置錆性に優れた電気絶縁皮膜の形成方法 |
JPH0598207A (ja) | 1991-10-08 | 1993-04-20 | Asahi Glass Co Ltd | 水性塗料組成物 |
JPH06330338A (ja) | 1993-05-21 | 1994-11-29 | Nippon Steel Corp | 被膜特性の極めて良好な無方向性電磁鋼板の製造方法 |
JPH0741913A (ja) | 1993-07-26 | 1995-02-10 | Nippon Steel Corp | 皮膜特性の優れる無方向性電磁鋼板及びその鋼板用表面処理剤 |
JPH07278834A (ja) * | 1994-04-14 | 1995-10-24 | Kawasaki Steel Corp | 溶接性およびオイルレス打抜き性に優れた電気絶縁被膜を有する電磁鋼板 |
JPH09323066A (ja) | 1996-06-07 | 1997-12-16 | Kawasaki Steel Corp | 歪取り焼鈍が可能で耐蝕性、耐溶剤性に優れる絶縁被膜付き電磁鋼板ならびにその絶縁被膜の形成方法 |
JP3117511B2 (ja) | 1991-10-16 | 2000-12-18 | 旭硝子株式会社 | 塗料用組成物および塗装方法 |
JP2002309379A (ja) | 2001-04-12 | 2002-10-23 | Kawasaki Steel Corp | 加工性に優れる絶縁被膜付き電磁鋼板 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS563012B2 (ja) | 1973-04-14 | 1981-01-22 | ||
JPS5530272B2 (ja) | 1973-06-15 | 1980-08-09 | ||
JPS5443823A (en) * | 1977-09-14 | 1979-04-06 | Nippon Steel Corp | Film forming method on electromagnetic steel sheet to prevent seizure at the time of strain relief annealing |
JPS6038068A (ja) * | 1983-08-10 | 1985-02-27 | Sumitomo Metal Ind Ltd | 電磁鋼板に絶縁皮膜を形成する方法 |
JPH07286283A (ja) | 1994-04-18 | 1995-10-31 | Kawasaki Steel Corp | 溶接性およびオイルレス打抜性に優れた電気絶縁被膜を有する電磁鋼板 |
JPH07331453A (ja) * | 1994-06-08 | 1995-12-19 | Kawasaki Steel Corp | 溶接性およびオイルレス打抜性に優れた電気絶縁被膜を有する電磁鋼板 |
US6153303A (en) * | 1997-08-26 | 2000-11-28 | Dupont Mitsui Fluorochemicals | Tetrafluoroethylene copolymer composition for coating metal articles |
CA2224667C (en) | 1997-12-12 | 2007-07-03 | Kawasaki Steel Corporation | Solvent-resistant electrical steel sheet capable of stress relief annealing and process |
US5955201A (en) | 1997-12-19 | 1999-09-21 | Armco Inc. | Inorganic/organic insulating coating for nonoriented electrical steel |
JP3435080B2 (ja) | 1998-10-23 | 2003-08-11 | 新日本製鐵株式会社 | 被膜特性に優れた無方向性電磁鋼板 |
US6159534A (en) | 1998-11-23 | 2000-12-12 | Nippon Steel Corporation | Method for producing non-oriented electromagnetic steel sheet having insulating film excellent in film properties |
US6383650B1 (en) | 1998-11-23 | 2002-05-07 | Nippon Steel Corporation | Non-oriented electromagnetic steel sheet having insulating film excellent in film properties |
US6686432B2 (en) * | 2002-02-15 | 2004-02-03 | Ppg Industries Ohio, Inc. | Alternating copolymers of isobutylene type monomers |
KR20050119142A (ko) * | 2003-03-26 | 2005-12-20 | 도토기키 가부시키가이샤 | 기능성 부재, 그것을 제조하기 위한 방법 및 코팅액 |
JP4456955B2 (ja) | 2004-07-16 | 2010-04-28 | 富士ゼロックス株式会社 | 電子写真感光体、電子写真用カートリッジおよび電子写真装置 |
WO2006039658A2 (en) * | 2004-09-30 | 2006-04-13 | Ppg Industries Ohio, Inc. | Thermosetting coating compositions comprising a copolymer formed from chlorotrifluoroethylene and methods of making copolymers formed from chlorotrifluoroethylene |
CN101048461A (zh) | 2004-10-27 | 2007-10-03 | 纳幕尔杜邦公司 | 自粘合涂料组合物 |
EP1830613B1 (en) * | 2004-12-20 | 2011-04-27 | Asahi Glass Company, Limited | Laminate for flexible printed wiring boards |
DE102006024869A1 (de) * | 2006-05-24 | 2007-11-29 | Bk Giulini Gmbh | Korrosionsschutzpigmente |
PL2366810T3 (pl) * | 2008-11-27 | 2019-12-31 | Nippon Steel Corporation | Blacha elektrotechniczna i sposób jej wytwarzania |
WO2012011442A1 (ja) | 2010-07-23 | 2012-01-26 | 新日本製鐵株式会社 | 電磁鋼板及びその製造方法 |
-
2011
- 2011-10-25 US US13/881,804 patent/US10669432B2/en active Active
- 2011-10-25 JP JP2012502381A patent/JP5005844B2/ja active Active
- 2011-10-25 KR KR1020137010262A patent/KR101518656B1/ko active IP Right Grant
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- 2011-10-25 CN CN201180052130.4A patent/CN103189544B/zh active Active
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- 2011-10-28 TW TW100139346A patent/TWI468549B/zh active
-
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- 2013-12-31 HK HK13114430.4A patent/HK1187083A1/xx unknown
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4919078B1 (ja) | 1970-12-07 | 1974-05-15 | ||
JPS5015016B1 (ja) | 1970-12-29 | 1975-06-02 | ||
JPS58136605A (ja) | 1982-02-05 | 1983-08-13 | Asahi Glass Co Ltd | カルボキシル基含有含フツ素重合体の製造方法 |
JPH0336284A (ja) | 1989-06-30 | 1991-02-15 | Sumitomo Metal Ind Ltd | 歪取焼鈍後の耐置錆性に優れた電気絶縁皮膜の形成方法 |
JPH0598207A (ja) | 1991-10-08 | 1993-04-20 | Asahi Glass Co Ltd | 水性塗料組成物 |
JP3117511B2 (ja) | 1991-10-16 | 2000-12-18 | 旭硝子株式会社 | 塗料用組成物および塗装方法 |
JPH06330338A (ja) | 1993-05-21 | 1994-11-29 | Nippon Steel Corp | 被膜特性の極めて良好な無方向性電磁鋼板の製造方法 |
JPH0741913A (ja) | 1993-07-26 | 1995-02-10 | Nippon Steel Corp | 皮膜特性の優れる無方向性電磁鋼板及びその鋼板用表面処理剤 |
JPH07278834A (ja) * | 1994-04-14 | 1995-10-24 | Kawasaki Steel Corp | 溶接性およびオイルレス打抜き性に優れた電気絶縁被膜を有する電磁鋼板 |
JPH09323066A (ja) | 1996-06-07 | 1997-12-16 | Kawasaki Steel Corp | 歪取り焼鈍が可能で耐蝕性、耐溶剤性に優れる絶縁被膜付き電磁鋼板ならびにその絶縁被膜の形成方法 |
JP2002309379A (ja) | 2001-04-12 | 2002-10-23 | Kawasaki Steel Corp | 加工性に優れる絶縁被膜付き電磁鋼板 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2634288A4 |
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Also Published As
Publication number | Publication date |
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KR101518691B1 (ko) | 2015-05-11 |
EP2634288B1 (en) | 2017-11-29 |
KR20150038540A (ko) | 2015-04-08 |
US10669432B2 (en) | 2020-06-02 |
JPWO2012057168A1 (ja) | 2014-05-12 |
CN103189544A (zh) | 2013-07-03 |
HK1187083A1 (en) | 2014-03-28 |
TWI468549B (zh) | 2015-01-11 |
US20130209789A1 (en) | 2013-08-15 |
CN103189544B (zh) | 2015-08-12 |
EP2634288A1 (en) | 2013-09-04 |
TW201224204A (en) | 2012-06-16 |
JP5005844B2 (ja) | 2012-08-22 |
KR101518656B1 (ko) | 2015-05-07 |
PL2634288T3 (pl) | 2018-05-30 |
EP2634288A4 (en) | 2015-01-21 |
KR20130094827A (ko) | 2013-08-26 |
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