JPWO2012057168A1 - 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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- JPWO2012057168A1 JPWO2012057168A1 JP2012502381A JP2012502381A JPWO2012057168A1 JP WO2012057168 A1 JPWO2012057168 A1 JP WO2012057168A1 JP 2012502381 A JP2012502381 A JP 2012502381A JP 2012502381 A JP2012502381 A JP 2012502381A JP WO2012057168 A1 JPWO2012057168 A1 JP WO2012057168A1
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- steel sheet
- copolymer
- organic resin
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- 238000004519 manufacturing process Methods 0.000 title description 8
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- 239000011347 resin Substances 0.000 claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 238000000576 coating method Methods 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
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- 238000002156 mixing Methods 0.000 claims description 11
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- -1 inorganic acid salt Chemical class 0.000 description 15
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- 125000000524 functional group Chemical group 0.000 description 10
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- 238000010438 heat treatment Methods 0.000 description 5
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
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- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
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- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
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- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- FWLDHHJLVGRRHD-UHFFFAOYSA-N decyl prop-2-enoate Chemical compound CCCCCCCCCCOC(=O)C=C FWLDHHJLVGRRHD-UHFFFAOYSA-N 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- IVSQJADIPSLMLT-UHFFFAOYSA-N ethene;nonoxybenzene Chemical group C=C.CCCCCCCCCOC1=CC=CC=C1 IVSQJADIPSLMLT-UHFFFAOYSA-N 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 125000005670 ethenylalkyl group Chemical group 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- CPSYWNLKRDURMG-UHFFFAOYSA-L hydron;manganese(2+);phosphate Chemical compound [Mn+2].OP([O-])([O-])=O CPSYWNLKRDURMG-UHFFFAOYSA-L 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- GJIDOLBZYSCZRX-UHFFFAOYSA-N hydroxymethyl prop-2-enoate Chemical compound OCOC(=O)C=C GJIDOLBZYSCZRX-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229940102253 isopropanolamine Drugs 0.000 description 1
- PBOSTUDLECTMNL-UHFFFAOYSA-N lauryl acrylate Chemical compound CCCCCCCCCCCCOC(=O)C=C PBOSTUDLECTMNL-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- CRGGPIWCSGOBDN-UHFFFAOYSA-N magnesium;dioxido(dioxo)chromium Chemical compound [Mg+2].[O-][Cr]([O-])(=O)=O CRGGPIWCSGOBDN-UHFFFAOYSA-N 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- DCUFMVPCXCSVNP-UHFFFAOYSA-N methacrylic anhydride Chemical compound CC(=C)C(=O)OC(=O)C(C)=C DCUFMVPCXCSVNP-UHFFFAOYSA-N 0.000 description 1
- XJRBAMWJDBPFIM-UHFFFAOYSA-N methyl vinyl ether Chemical compound COC=C XJRBAMWJDBPFIM-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- OMNKZBIFPJNNIO-UHFFFAOYSA-N n-(2-methyl-4-oxopentan-2-yl)prop-2-enamide Chemical compound CC(=O)CC(C)(C)NC(=O)C=C OMNKZBIFPJNNIO-UHFFFAOYSA-N 0.000 description 1
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- FJDUDHYHRVPMJZ-UHFFFAOYSA-N nonan-1-amine Chemical compound CCCCCCCCCN FJDUDHYHRVPMJZ-UHFFFAOYSA-N 0.000 description 1
- MDYPDLBFDATSCF-UHFFFAOYSA-N nonyl prop-2-enoate Chemical compound CCCCCCCCCOC(=O)C=C MDYPDLBFDATSCF-UHFFFAOYSA-N 0.000 description 1
- 229940065472 octyl acrylate Drugs 0.000 description 1
- ANISOHQJBAQUQP-UHFFFAOYSA-N octyl prop-2-enoate Chemical compound CCCCCCCCOC(=O)C=C ANISOHQJBAQUQP-UHFFFAOYSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- YNOGYQAEJGADFJ-UHFFFAOYSA-N oxolan-2-ylmethanamine Chemical compound NCC1CCCO1 YNOGYQAEJGADFJ-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 229920011301 perfluoro alkoxyl alkane Polymers 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920000137 polyphosphoric acid Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- AGGKEGLBGGJEBZ-UHFFFAOYSA-N tetramethylenedisulfotetramine Chemical compound C1N(S2(=O)=O)CN3S(=O)(=O)N1CN2C3 AGGKEGLBGGJEBZ-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical group O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
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- 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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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
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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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- 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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- 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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- 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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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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