JP4698448B2 - 方向性電磁鋼板用MgOとこれを用いた磁気特性とグラス被膜特性に優れた方向性電磁鋼板の製造方法 - Google Patents
方向性電磁鋼板用MgOとこれを用いた磁気特性とグラス被膜特性に優れた方向性電磁鋼板の製造方法 Download PDFInfo
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- 239000011521 glass Substances 0.000 title claims description 40
- 229910001224 Grain-oriented electrical steel Inorganic materials 0.000 title claims description 32
- 239000011248 coating agent Substances 0.000 title claims description 31
- 238000000576 coating method Methods 0.000 title claims description 29
- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 239000000395 magnesium oxide Substances 0.000 claims description 72
- 238000000137 annealing Methods 0.000 claims description 40
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 24
- 150000001875 compounds Chemical class 0.000 claims description 23
- 239000002245 particle Substances 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 13
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 12
- 239000000347 magnesium hydroxide Substances 0.000 claims description 12
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 12
- 238000009826 distribution Methods 0.000 claims description 10
- 159000000003 magnesium salts Chemical class 0.000 claims description 8
- 238000005261 decarburization Methods 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 5
- 238000005097 cold rolling Methods 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 130
- 235000012245 magnesium oxide Nutrition 0.000 description 69
- 238000000034 method Methods 0.000 description 26
- 238000005755 formation reaction Methods 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 230000009257 reactivity Effects 0.000 description 10
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 8
- 239000000654 additive Substances 0.000 description 8
- 230000007547 defect Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000011575 calcium Substances 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 239000002002 slurry Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 238000010304 firing Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 239000012467 final product Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 4
- 229910001629 magnesium chloride Inorganic materials 0.000 description 4
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 4
- 239000013535 sea water Substances 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 239000011163 secondary particle Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 208000023514 Barrett esophagus Diseases 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 229910052839 forsterite Inorganic materials 0.000 description 2
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052712 strontium Inorganic materials 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910000379 antimony sulfate Inorganic materials 0.000 description 1
- MVMLTMBYNXHXFI-UHFFFAOYSA-H antimony(3+);trisulfate Chemical compound [Sb+3].[Sb+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O MVMLTMBYNXHXFI-UHFFFAOYSA-H 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 150000001639 boron compounds Chemical class 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Chemical Treatment Of Metals (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
Description
原料Mg塩として、苦汁及び海水を用い、原料アルカリ物質として、表1中に記載する水酸化物を用いて、水槽中で混合攪拌し化学反応させて水酸化マグネシウムとした。その後、洗浄工程を経てロータリーキルンにて焼成し、酸化マグネシウムとした後、粉砕分粒により、表1に示すAからFのMgOを製造した。
質量%で、Si;3.25%,C;0.08%,Mn;0.07%,S;0.024%,Al;0.028%,N;0.0075%,Cu;0.08%,Sn;0.06%,Bi;0.03%、残部が実質的にFeである鋼塊20tを熱延して熱延板とした後、焼鈍、酸洗、冷延し、最終板厚0.23mmの冷延板とした。
Claims (4)
- ゼータ電位の絶対値が20mV以上で、20℃における40%クエン酸活性度の平均値が100〜200秒で、かつ、粒度分布の標準偏差が4以上であることを特徴とする方向性電磁鋼板用MgO。
- 前記方向性電磁鋼板用MgOが、水溶性マグネシウム塩1当量に対しアルカリ性物質を0.80から1.05当量で反応させて水酸化マグネシウムとし、これを、700〜1300℃で焼成して得られたものであることを特徴とする請求項1記載の方向性電磁鋼板用MgO。
- 焼鈍分離剤を塗布した後、高温仕上げ焼鈍する方向性電磁鋼板の製造方法において、焼鈍分離剤の主成分として用いるMgOのゼータ電位の絶対値が20mV以上で、20℃における40%クエン酸活性度の平均値が100〜200秒で、かつ、平均粒径が1.5〜4.5μmで粒度分布の標準偏差が4以上である焼鈍分離剤を、脱炭焼鈍後の冷間圧延方向性電磁鋼板に塗布乾燥し、高温仕上げ焼鈍することを特徴とする磁気特性とグラス被膜特性に優れた方向性電磁鋼板の製造方法。
- 前記焼鈍分離剤として、MgO100重量部に対し、酸化チタンを1〜30重量部と、さらに、Sb化合物、Ca化合物、Ba化合物、Sr化合物、B化合物の1種又は2種以上からなる化合物を、合計で0.1〜5重量部含有したものを用いることを特徴とする請求項3記載の磁気特性とグラス被膜特性に優れた方向性電磁鋼板の製造方法。
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JP4698448B2 true JP4698448B2 (ja) | 2011-06-08 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5245277B2 (ja) * | 2007-04-13 | 2013-07-24 | Jfeスチール株式会社 | 焼鈍分離剤用のマグネシアおよび方向性電磁鋼板の製造方法 |
JP5181651B2 (ja) * | 2007-12-14 | 2013-04-10 | Jfeスチール株式会社 | 方向性電磁鋼板用焼鈍分離剤スラリーの調整方法および方向性電磁鋼板の製造方法 |
JP5686563B2 (ja) * | 2010-09-28 | 2015-03-18 | タテホ化学工業株式会社 | 水酸化マグネシウム微粒子及び酸化マグネシウム微粒子、並びにそれらの製造方法 |
CN113981196B (zh) * | 2021-11-02 | 2023-07-28 | 无锡普天铁心股份有限公司 | 一种提高超高磁感取向硅钢底层质量的退火隔离剂及其制备方法和应用 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0633138A (ja) * | 1992-07-20 | 1994-02-08 | Kawasaki Steel Corp | 被膜特性及び磁気特性に優れた一方向性けい素鋼板の製造方法 |
JPH11181525A (ja) * | 1997-12-24 | 1999-07-06 | Kawasaki Steel Corp | 磁気特性及び被膜特性に優れる方向性電磁鋼板の製造方法 |
JP2004238668A (ja) * | 2003-02-05 | 2004-08-26 | Tateho Chem Ind Co Ltd | 焼鈍分離剤用酸化マグネシウム及び方向性電磁鋼板 |
JP2005171387A (ja) * | 2004-12-22 | 2005-06-30 | Jfe Steel Kk | 焼鈍分離剤用のMgOの製造方法 |
-
2006
- 2006-03-13 JP JP2006067665A patent/JP4698448B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0633138A (ja) * | 1992-07-20 | 1994-02-08 | Kawasaki Steel Corp | 被膜特性及び磁気特性に優れた一方向性けい素鋼板の製造方法 |
JPH11181525A (ja) * | 1997-12-24 | 1999-07-06 | Kawasaki Steel Corp | 磁気特性及び被膜特性に優れる方向性電磁鋼板の製造方法 |
JP2004238668A (ja) * | 2003-02-05 | 2004-08-26 | Tateho Chem Ind Co Ltd | 焼鈍分離剤用酸化マグネシウム及び方向性電磁鋼板 |
JP2005171387A (ja) * | 2004-12-22 | 2005-06-30 | Jfe Steel Kk | 焼鈍分離剤用のMgOの製造方法 |
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