JP6535739B2 - 方向性電磁鋼板用焼鈍分離剤組成物、およびこれを用いた方向性電磁鋼板の製造方法 - Google Patents
方向性電磁鋼板用焼鈍分離剤組成物、およびこれを用いた方向性電磁鋼板の製造方法 Download PDFInfo
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- 238000000137 annealing Methods 0.000 title claims description 141
- 239000000203 mixture Substances 0.000 title claims description 39
- 229910001224 Grain-oriented electrical steel Inorganic materials 0.000 title claims description 29
- 238000004519 manufacturing process Methods 0.000 title claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 110
- 239000010959 steel Substances 0.000 claims description 110
- 229910001511 metal iodide Inorganic materials 0.000 claims description 68
- 239000000395 magnesium oxide Substances 0.000 claims description 60
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 60
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 60
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 52
- 238000000034 method Methods 0.000 claims description 28
- 229910052757 nitrogen Inorganic materials 0.000 claims description 28
- 229910052739 hydrogen Inorganic materials 0.000 claims description 26
- 239000001257 hydrogen Substances 0.000 claims description 26
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 23
- 239000000347 magnesium hydroxide Substances 0.000 claims description 23
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 23
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 22
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 21
- 239000007789 gas Substances 0.000 claims description 21
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 238000005121 nitriding Methods 0.000 claims description 17
- 239000002904 solvent Substances 0.000 claims description 12
- 230000003746 surface roughness Effects 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 229910052709 silver Inorganic materials 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000005097 cold rolling Methods 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 5
- 239000011247 coating layer Substances 0.000 claims description 3
- 238000005098 hot rolling Methods 0.000 claims description 3
- 238000000576 coating method Methods 0.000 description 64
- 239000011248 coating agent Substances 0.000 description 63
- 238000006243 chemical reaction Methods 0.000 description 43
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 33
- 229910001510 metal chloride Inorganic materials 0.000 description 22
- 230000008569 process Effects 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 15
- 238000001953 recrystallisation Methods 0.000 description 15
- 239000000463 material Substances 0.000 description 13
- 229910052742 iron Inorganic materials 0.000 description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 9
- 238000005755 formation reaction Methods 0.000 description 9
- 239000011162 core material Substances 0.000 description 8
- 238000011156 evaluation Methods 0.000 description 8
- 230000004907 flux Effects 0.000 description 8
- 239000011777 magnesium Substances 0.000 description 8
- 239000002244 precipitate Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000013078 crystal Substances 0.000 description 6
- 230000005381 magnetic domain Effects 0.000 description 6
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 5
- 238000009834 vaporization Methods 0.000 description 5
- 230000008016 vaporization Effects 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 229910004283 SiO 4 Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005261 decarburization Methods 0.000 description 3
- 229910052839 forsterite Inorganic materials 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000010960 cold rolled steel Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- XMBWDFGMSWQBCA-UHFFFAOYSA-M iodide Chemical compound [I-] XMBWDFGMSWQBCA-UHFFFAOYSA-M 0.000 description 2
- 239000006148 magnetic separator Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- -1 iodide ions Chemical class 0.000 description 1
- 150000004694 iodide salts Chemical class 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1277—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular surface treatment
- C21D8/1283—Application of a separating or insulating coating
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
- C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
- C21D1/72—Temporary coatings or embedding materials applied before or during heat treatment during chemical change of surfaces
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
- C21D8/1272—Final recrystallisation annealing
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnetism (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Chemical Treatment Of Metals (AREA)
- Soft Magnetic Materials (AREA)
Description
650〜1200℃の温度範囲で行われるものであってもよい。
具体的には、650℃から1200℃に到達するまで0.1〜20℃/hrの昇温率で加熱し、前記1200℃に到達した後、1150〜1250℃の温度範囲で20時間以上維持するものであってもよい。
[式1]3≦(表面粗さ(um)X保磁力(A/m))≦9
[化学反応式1]2Mg(OH)2+SiO2→Mg2SiO4(ベースコーティング)+2H2O
[化学反応式2]Fe+2Cl→FeCl2
[化学反応式3]FeCl2+H2→2HCl+Fe
[化学反応式4]FeI2+H2→2HI+Fe
[化学反応式5]aM+bI2→cMIx(ただし、前記xは1または2)
[式1]3≦(表面粗さ(um)X保磁力(A/m))≦9
前記化学反応式4(つまり、FeI2+H2→2HI+Fe)で表されるHI生成反応が行われる温度をシミュレーションした。
前記化学反応式3(つまり、FeCl2+H2→2HCl+Fe)で表されるHCl生成反応が行われる温度をシミュレーションした。
実施例1および比較例1に共通して、炉(furnace)内の水素および窒素の組成に応じて、化学反応式4(実施例1の場合)および化学反応式3(比較例1の場合)の反応温度が異なることが分かる。
高温焼鈍工程で金属酸化物(MgO)、金属ヨウ化物、および水(H2O)を含む組成物を用いて鏡面方向性電磁鋼板を製造し、その鏡面度および磁性特性を確認しようとした。
高温焼鈍工程で実施例2の金属ヨウ化物の代わりに金属塩化物を用いて鏡面方向性電磁鋼板を製造し、その鏡面度および磁性特性を確認しようとした。
実施例2および比較例2でそれぞれ最終的に得られた方向性電磁鋼板は、表面洗浄後、5MPaの張力を印加しながら、830℃で10秒間平坦化焼鈍した。
高温焼鈍工程で金属酸化物(MgO)、金属ヨウ化物、および水(H2O)を含む組成物を用いて鏡面方向性電磁鋼板を製造し、その磁性特性および保磁力を確認しようとした。
高温焼鈍工程で実施例3の金属ヨウ化物の代わりに金属塩化物を用いて鏡面方向性電磁鋼板を製造し、その磁性特性および保磁力を確認しようとした。
実施例3および比較例3でそれぞれ最終的に得られた方向性電磁鋼板は、表面洗浄後、表面に絶縁被膜をコーティングしない状態で磁束密度、鉄損、表面粗さおよび保磁力を測定して、その結果を表4に示した。
Claims (12)
- マグネシウム酸化物またはマグネシウム水酸化物;
金属ヨウ化物;および
溶媒を含み、
前記マグネシウム酸化物またはマグネシウム水酸化物100重量部に対する、前記金属ヨウ化物は11〜20重量部であり、
前記金属ヨウ化物をなす金属は、Ag、Co、Cu、Mo、およびこれらの組み合わせを含む群より選択されたいずれかの金属である、方向性電磁鋼板用焼鈍分離剤組成物。 - 前記焼鈍分離剤組成物は、鏡面方向性電磁鋼板用焼鈍分離剤組成物である、請求項1に記載の方向性電磁鋼板用焼鈍分離剤組成物。
- 前記マグネシウム酸化物またはマグネシウム水酸化物は、マグネシウム酸化物(MgO)を含むものである、請求項1又は2に記載の方向性電磁鋼板用焼鈍分離剤組成物。
- Si:0.5〜4.5重量%を含み、残部がFe及びその他不可避不純物からなる鋼スラブを準備する段階と、
前記鋼スラブを1,300℃以下で加熱する段階と、
前記加熱された鋼スラブを熱間圧延して、熱延板を製造する段階と、
前記熱延板を1回の冷間圧延または中間焼鈍を含む2回以上の冷間圧延を実施して、冷延板を製造する段階と、
前記冷延板を脱炭焼鈍および窒化処理する段階と、
前記脱炭焼鈍および窒化処理された鋼板の表面上に、焼鈍分離剤を塗布する段階と、
前記焼鈍分離剤が塗布された鋼板を高温焼鈍する段階と、
方向性電磁鋼板を得る段階とを含み、
前記焼鈍分離剤は、マグネシウム酸化物またはマグネシウム水酸化物、金属ヨウ化物、および溶媒を含むスラリーであり、
前記マグネシウム酸化物またはマグネシウム水酸化物100重量部に対する、前記金属ヨウ化物は11〜20重量部であり、
前記金属ヨウ化物をなす金属は、Ag、Co、Cu、Mo、およびこれらの組み合わせを含む群より選択されたいずれかの金属である、方向性電磁鋼板の製造方法。 - 前記製造された方向性電磁鋼板は、鏡面方向性電磁鋼板である、請求項4に記載の方向性電磁鋼板の製造方法。
- 前記マグネシウム酸化物またはマグネシウム水酸化物は、マグネシウム酸化物(MgO)を含むものである、請求項4に記載の方向性電磁鋼板の製造方法。
- 前記焼鈍分離剤が塗布された鋼板を高温焼鈍する段階は、650℃から1200℃に到達するまで0.1〜20℃/hrの昇温率で加熱し、前記1200℃に到達した後、1150〜1250℃の温度範囲で20時間以上維持するものである、請求項4に記載の方向性電磁鋼板の製造方法。
- 前記焼鈍分離剤が塗布された鋼板を高温焼鈍する段階は、窒素に対する水素の体積比率が15〜40%の混合気体雰囲気で行われ、1000℃以上の温度範囲に到達すると、前記焼鈍分離剤が塗布された鋼板のベースコーティング(Base Coating)層が剥離され始めるものである、請求項7に記載の方向性電磁鋼板の製造方法。
- 前記焼鈍分離剤が塗布された鋼板を高温焼鈍する段階は、窒素に対する水素の体積比率が40〜75%の混合気体雰囲気で行われ、950℃以上の温度範囲に到達すると、前記焼鈍分離剤が塗布された鋼板のベースコーティング(Base Coating)層が剥離され始めるものである、請求項7に記載の方向性電磁鋼板の製造方法。
- 前記焼鈍分離剤が塗布された鋼板を高温焼鈍する段階において、前記高温焼鈍された鋼板の表面粗さ(surface roughness)および1.7T/50Hzでの保磁力(coercive force)は、下記式1で表される関係を満たすものである、請求項7に記載の方向性電磁鋼板の製造方法。
[式1]3≦(表面粗さ(um)X保磁力(A/m))≦9 - 前記焼鈍分離剤が塗布された鋼板を高温焼鈍する段階において、前記高温焼鈍された鋼板の光沢度は、150GU以上である、請求項7に記載の方向性電磁鋼板の製造方法。
- 前記脱炭焼鈍および窒化処理された鋼板の表面上に、焼鈍分離剤を塗布する段階の以降に、前記焼鈍分離剤が塗布された鋼板を乾燥する段階をさらに含み、前記焼鈍分離剤が塗布された鋼板を乾燥する段階は、300〜700℃の温度範囲で行われるものである、請求項7に記載の方向性電磁鋼板の製造方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2014-0166906 | 2014-11-26 | ||
KR20140166906 | 2014-11-26 | ||
KR10-2015-0159096 | 2015-11-12 | ||
KR1020150159096A KR101696627B1 (ko) | 2014-11-26 | 2015-11-12 | 방향성 전기강판용 소둔 분리제 조성물, 및 이를 이용한 방향성 전기강판의 제조방법 |
PCT/KR2015/012735 WO2016085257A1 (ko) | 2014-11-26 | 2015-11-25 | 방향성 전기강판용 소둔 분리제 조성물, 및 이를 이용한 방향성 전기강판의 제조방법 |
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Publication Number | Publication Date |
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JP2018504517A JP2018504517A (ja) | 2018-02-15 |
JP6535739B2 true JP6535739B2 (ja) | 2019-06-26 |
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KR101850133B1 (ko) | 2016-10-26 | 2018-04-19 | 주식회사 포스코 | 방향성 전기강판용 소둔 분리제 조성물, 방향성 전기강판 및 방향성 전기강판의 제조방법 |
KR101909218B1 (ko) * | 2016-12-21 | 2018-10-17 | 주식회사 포스코 | 방향성 전기강판용 소둔 분리제 조성물, 방향성 전기강판 및 방향성 전기강판의 제조방법 |
KR101944901B1 (ko) | 2016-12-21 | 2019-02-01 | 주식회사 포스코 | 방향성 전기강판용 소둔 분리제 조성물, 방향성 전기강판 및 방향성 전기강판의 제조방법 |
BR112020000266A2 (pt) * | 2017-07-13 | 2020-07-14 | Nippon Steel Corporation | folha de aço eletromagnética orientada |
KR102084028B1 (ko) | 2017-10-16 | 2020-03-04 | 에스아이에스 주식회사 | 소둔 분리제 제조 시스템 |
KR102080165B1 (ko) * | 2017-12-26 | 2020-02-21 | 주식회사 포스코 | 방향성 전기강판용 소둔 분리제 조성물, 방향성 전기강판 및 그의 제조방법 |
JP7028201B2 (ja) * | 2019-01-31 | 2022-03-02 | Jfeスチール株式会社 | 焼鈍分離剤および方向性電磁鋼板の製造方法 |
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EP0789093B2 (en) * | 1994-11-16 | 2005-02-09 | Nippon Steel Corporation | Process for producing directional electrical sheet excellent in glass coating and magnetic properties |
JP2953978B2 (ja) * | 1995-02-20 | 1999-09-27 | 新日本製鐵株式会社 | 絶縁被膜特性の優れるグラス被膜を有しない厚手方向性電磁鋼板及びその製造方法 |
FR2761081B1 (fr) * | 1997-03-21 | 1999-04-30 | Usinor | Procede de fabrication d'une tole d'acier electrique a grains orientes pour la fabrication notamment de circuits magnetiques de transformateurs |
DE69913624T2 (de) * | 1998-09-18 | 2004-06-09 | Jfe Steel Corp. | Kornorientieres Siliziumstahlblech und Herstellungsverfahren dafür |
JP2003213338A (ja) * | 2002-01-28 | 2003-07-30 | Jfe Steel Kk | 磁気特性及び被膜特性に優れた方向性電磁鋼板の製造方法 |
JP4345302B2 (ja) * | 2002-12-27 | 2009-10-14 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
JP4569070B2 (ja) * | 2003-03-13 | 2010-10-27 | Jfeスチール株式会社 | 方向性電磁鋼板の仕上焼鈍方法 |
KR100762436B1 (ko) * | 2006-10-18 | 2007-10-02 | 주식회사 포스코 | 표면성상이 우수한 방향성 전기강판용 소둔분리제 및 이를이용한 방향성 전기강판의 제조방법 |
WO2008047999A1 (en) * | 2006-10-18 | 2008-04-24 | Posco | Annealing separating agent for grain oriented electrical steel sheet having uniform glass film and excellent magnetic properties and method of manufacturig the same |
KR100865316B1 (ko) * | 2006-10-18 | 2008-10-27 | 주식회사 포스코 | 균일한 글라스피막과 우수한 자기특성을 갖는 방향성전기강판용 소둔분리제 |
CN101545072B (zh) * | 2008-03-25 | 2012-07-04 | 宝山钢铁股份有限公司 | 一种高电磁性能取向硅钢的生产方法 |
CN102021282A (zh) * | 2009-09-21 | 2011-04-20 | 宝山钢铁股份有限公司 | 一种用于晶粒取向硅钢制备的退火隔离剂及其使用方法 |
CN103014285B (zh) * | 2011-09-28 | 2015-04-01 | 宝山钢铁股份有限公司 | 具有优良磁性能的镜面取向硅钢制造方法及退火隔离剂 |
KR101480498B1 (ko) * | 2012-12-28 | 2015-01-08 | 주식회사 포스코 | 방향성 전기강판 및 그 제조방법 |
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JP2018504517A (ja) | 2018-02-15 |
CN107002158A (zh) | 2017-08-01 |
CN107002158B (zh) | 2019-06-18 |
KR101696627B1 (ko) | 2017-01-16 |
EP3225701A1 (en) | 2017-10-04 |
EP3225701A4 (en) | 2017-10-25 |
KR20160063244A (ko) | 2016-06-03 |
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