JP4608600B2 - 熱伝導性に優れた絶縁被膜を持つ電磁鋼板及びその製造方法 - Google Patents
熱伝導性に優れた絶縁被膜を持つ電磁鋼板及びその製造方法 Download PDFInfo
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- JP4608600B2 JP4608600B2 JP2010502761A JP2010502761A JP4608600B2 JP 4608600 B2 JP4608600 B2 JP 4608600B2 JP 2010502761 A JP2010502761 A JP 2010502761A JP 2010502761 A JP2010502761 A JP 2010502761A JP 4608600 B2 JP4608600 B2 JP 4608600B2
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- steel sheet
- chromic acid
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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
- C23C22/05—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 using aqueous solutions
- C23C22/06—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 using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/24—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
- C23C22/26—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also organic compounds
- C23C22/28—Macromolecular compounds
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Power Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Description
Si:2.5%、Al:0.5%、Mn:0.05%を含有する厚さが0.35mmの無方向性電磁鋼板の表面に、表1に示すコーティング液を表2に示す条件で塗布した。重クロム酸塩としては、クロムフレークとMg(OH)2、Al(OH)3、CaO、SrCO3等の金属水酸化物、酸化物又は炭酸塩を混合加熱して金属重クロム酸塩を調製し、50%水溶液を用いた。
Claims (7)
- 電磁鋼板と、
前記電磁鋼板の表面に形成された絶縁被膜と、
を有し、
前記絶縁被膜は、
クロム酸金属塩と、
前記クロム酸金属塩(CrO3に換算して)の1重量部に対して0.01〜0.5重量部の、結晶化率が10〜50%である、スチレン樹脂、アクリル樹脂、エポキシ樹脂、ポリイミド樹脂の1種又は2種以上の混合物若しくは共重合物と、を含有し、
前記クロム酸金属塩中の水酸化クロム化合物の割合は、3酸化クロム(Cr2O3)に換算した前記クロム酸金属塩100%に対して3酸化クロム(Cr2O3)換算で30%以上であることを特徴とする熱伝導性に優れた絶縁被膜を持つ電磁鋼板。 - 前記絶縁被膜は、前記水酸化クロム化合物を、3酸化クロム(Cr2O3)に換算したクロム酸化合物100%に対して3酸化クロム(Cr2O3)換算で45%以上含有することを特徴とする請求項1に記載の熱伝導性に優れた絶縁被膜を持つ電磁鋼板。
- 前記絶縁被膜は、前記水酸化クロム化合物を、3酸化クロム(Cr2O3)に換算したクロム酸化合物100%に対して3酸化クロム(Cr2O3)換算で60%以上含有することを特徴とする請求項1に記載の熱伝導性に優れた絶縁被膜を持つ電磁鋼板。
- 電磁鋼板の表面に、所定のコーティング液を塗布する工程と、
前記所定のコーティング液を乾燥させて絶縁被膜を形成する工程と、
を有し、
前記所定のコーティング液として、クロム酸金属塩と、前記クロム酸金属塩(CrO3に換算して)の1重量部に対して樹脂固形分に換算して0.01〜0.5重量部の、結晶化率が10%〜50%である、スチレン樹脂エマルジョン、アクリル樹脂エマルジョン、エポキシ樹脂エマルジョン、ポリイミド樹脂ディスパージョンの1種又は2種以上の混合物若しくは共重合物と、を含有し、クロム酸還元剤としてのポリオール化合物がクロム酸当量の1.2倍〜3.6倍添加されたものを用い、
前記絶縁被膜を形成する工程は、前記所定のコーティング液を、50℃〜200℃の温度範囲において10℃/秒〜35℃/秒の速度で加熱する工程を有することを特徴とする熱伝導性に優れた絶縁被膜を持つ電磁鋼板の製造方法。 - 前記ポリオール化合物として、エチレングリコール、グリセリン又はスクロースを用いることを特徴とする請求項4に記載の熱伝導性に優れた絶縁被膜を持つ電磁鋼板の製造方法。
- 前記所定のコーティング液として、前記クロム酸還元剤としてのポリオール化合物がクロム酸当量の1.5倍〜2.4倍添加されたものを用いることを特徴とする請求項4に記載の熱伝導性に優れた絶縁被膜を持つ電磁鋼板の製造方法。
- 前記所定のコーティング液として、前記クロム酸還元剤としてのポリオール化合物がクロム酸当量の1.5倍〜2.4倍添加されたものを用いることを特徴とする請求項5に記載の熱伝導性に優れた絶縁被膜を持つ電磁鋼板の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2008064227 | 2008-03-13 | ||
JP2008064227 | 2008-03-13 | ||
PCT/JP2009/053383 WO2009113392A1 (ja) | 2008-03-13 | 2009-02-25 | 熱伝導性に優れた絶縁被膜を持つ電磁鋼板及びその製造方法 |
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Publication Number | Publication Date |
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JP4608600B2 true JP4608600B2 (ja) | 2011-01-12 |
JPWO2009113392A1 JPWO2009113392A1 (ja) | 2011-07-21 |
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JP2010502761A Active JP4608600B2 (ja) | 2008-03-13 | 2009-02-25 | 熱伝導性に優れた絶縁被膜を持つ電磁鋼板及びその製造方法 |
Country Status (5)
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JP (1) | JP4608600B2 (ja) |
KR (1) | KR101168509B1 (ja) |
CN (1) | CN101946024B (ja) |
TW (1) | TWI406968B (ja) |
WO (1) | WO2009113392A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2015028143A1 (en) * | 2013-09-02 | 2015-03-05 | Tata Steel Nederland Technology B.V. | Doped polymer coating for steel substrates |
CN105647342B (zh) * | 2016-03-02 | 2017-11-10 | 安徽汇精模具研发科技有限公司 | 一种精密模具表面涂料及其制备方法 |
BR112020000266A2 (pt) * | 2017-07-13 | 2020-07-14 | Nippon Steel Corporation | folha de aço eletromagnética orientada |
US20210324491A1 (en) * | 2018-09-03 | 2021-10-21 | Jfe Steel Corporation | Electrical steel sheet with insulating film and method for manufacturing the same |
KR102223865B1 (ko) | 2018-09-27 | 2021-03-04 | 주식회사 포스코 | 전기강판 적층체 |
KR102185051B1 (ko) | 2019-03-06 | 2020-12-01 | 삼성전기주식회사 | 코일 전자부품 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH04308092A (ja) * | 1991-04-03 | 1992-10-30 | Nkk Corp | 絶縁性、打ち抜き性、耐熱性および耐食性に優れた電磁鋼板およびその製造方法 |
JPH07180064A (ja) * | 1993-12-22 | 1995-07-18 | Nippon Steel Corp | 被膜特性の優れる方向性電磁鋼板の製造方法及びその絶縁被膜処理剤 |
JP2000192249A (ja) * | 1998-12-28 | 2000-07-11 | Sumitomo Metal Ind Ltd | 耐食性に優れた絶縁皮膜付き電磁鋼板とその製造方法 |
JP2003213443A (ja) * | 2002-01-16 | 2003-07-30 | Nippon Steel Corp | 被膜性能の優れる無方向性電磁鋼板および絶縁被膜処理剤及び処理方法 |
JP2006144097A (ja) * | 2004-11-24 | 2006-06-08 | Jfe Steel Kk | クロム酸系絶縁被膜付き電磁鋼板 |
WO2006120993A1 (ja) * | 2005-05-10 | 2006-11-16 | Nippon Steel Chemical Co., Ltd. | エポキシ樹脂組成物および硬化物 |
WO2008018364A1 (fr) * | 2006-08-07 | 2008-02-14 | Nippon Steel Chemical Co., Ltd. | Préimprégné, stratifié et carte de câblage imprimé |
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DE10297178B4 (de) * | 2001-09-05 | 2016-11-03 | Usui Kokusai Sangyo Kaisha, Ltd. | Korrosionsbeständige Beschichtungsfilmstruktur, die kein kein sechswertiges Chrom enthält |
CN1229454C (zh) * | 2003-03-31 | 2005-11-30 | 宝山钢铁股份有限公司 | 电工钢用涂料 |
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- 2009-02-25 WO PCT/JP2009/053383 patent/WO2009113392A1/ja active Application Filing
- 2009-02-25 JP JP2010502761A patent/JP4608600B2/ja active Active
- 2009-02-25 CN CN200980105538.6A patent/CN101946024B/zh active Active
- 2009-02-25 KR KR1020107017962A patent/KR101168509B1/ko active IP Right Grant
- 2009-02-27 TW TW098106385A patent/TWI406968B/zh active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04308092A (ja) * | 1991-04-03 | 1992-10-30 | Nkk Corp | 絶縁性、打ち抜き性、耐熱性および耐食性に優れた電磁鋼板およびその製造方法 |
JPH07180064A (ja) * | 1993-12-22 | 1995-07-18 | Nippon Steel Corp | 被膜特性の優れる方向性電磁鋼板の製造方法及びその絶縁被膜処理剤 |
JP2000192249A (ja) * | 1998-12-28 | 2000-07-11 | Sumitomo Metal Ind Ltd | 耐食性に優れた絶縁皮膜付き電磁鋼板とその製造方法 |
JP2003213443A (ja) * | 2002-01-16 | 2003-07-30 | Nippon Steel Corp | 被膜性能の優れる無方向性電磁鋼板および絶縁被膜処理剤及び処理方法 |
JP2006144097A (ja) * | 2004-11-24 | 2006-06-08 | Jfe Steel Kk | クロム酸系絶縁被膜付き電磁鋼板 |
WO2006120993A1 (ja) * | 2005-05-10 | 2006-11-16 | Nippon Steel Chemical Co., Ltd. | エポキシ樹脂組成物および硬化物 |
WO2008018364A1 (fr) * | 2006-08-07 | 2008-02-14 | Nippon Steel Chemical Co., Ltd. | Préimprégné, stratifié et carte de câblage imprimé |
Also Published As
Publication number | Publication date |
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KR20100101699A (ko) | 2010-09-17 |
KR101168509B1 (ko) | 2012-07-27 |
CN101946024A (zh) | 2011-01-12 |
CN101946024B (zh) | 2015-05-20 |
TWI406968B (zh) | 2013-09-01 |
TW200946716A (en) | 2009-11-16 |
JPWO2009113392A1 (ja) | 2011-07-21 |
WO2009113392A1 (ja) | 2009-09-17 |
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