KR970015787A - 도포안정성 및 밀착성이 우수한 절연피막 형성용 처리액 및 이를 이용한 절연피막 제조방법 - Google Patents

도포안정성 및 밀착성이 우수한 절연피막 형성용 처리액 및 이를 이용한 절연피막 제조방법 Download PDF

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KR970015787A
KR970015787A KR1019950032187A KR19950032187A KR970015787A KR 970015787 A KR970015787 A KR 970015787A KR 1019950032187 A KR1019950032187 A KR 1019950032187A KR 19950032187 A KR19950032187 A KR 19950032187A KR 970015787 A KR970015787 A KR 970015787A
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insulating film
coating
chromic acid
adhesion
forming
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KR1019950032187A
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KR100226889B1 (ko
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유영종
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김종진
포항종합제철 주식회사
신창식
재단법인 산업과학기술연구소
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Priority to KR1019950032187A priority Critical patent/KR100226889B1/ko
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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
    • 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
    • C21D1/26—Methods of annealing
    • C21D1/30—Stress-relieving
    • 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
    • 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
    • C23C22/30—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 trivalent chromium
    • 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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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

본 발명은 무방향성 전기강판의 절연피막 형성에 사용되는 처리액 및 이를 이용한 절연피막의 제조방법에 관한 것으로, 무기질 절연피막 형성용 처리액의 성분 및 그 함량을 적절히 조정하고 그에 따른 절연피막의 제조조건을 적절히 제어함으로써, 도포안정성 및 응력제거 소둔 후 밀착성이 우수한 절연피막 형성용 처리액 및 이를 이용한 절연피막의 제조방법을 제공하고자 하는데, 그 목적이 있다.
상기한 목적달성을 위한 본 발명은 Mg, Ca 및 Zn 중 선택된 1종 또는 2종 이상이 함유된 크롬산 금속염에, 상기 금속염 중 무수크롬산(CrO3) 100g에 대하여 콜로이달 실리카를 고형분으로 30∼220g, 별도의 물을 첨가하면서 분산시킨 분말상 실리카 분산액을 고형분으로 5∼20g 및 다가알코올 5∼25g 첨가하여 조성되는 절연 피막 형성용 처리액 및 이용액을 무방향성 전기강판 표면에 건조피막 두께가 편면당 2.0∼4.5μm범위가 되도록 도포한 후, 200∼900℃의 온도 범위에서 10∼80초간 소둔하는 것을 포함하여 이루어지는 도포안정성 및 밀착성이 우수한 절연피막 제조방법에 관한 것을 그 요지로 한다.

Description

도포안정성 및 밀착성이 우수한 절연피막 형성용 처리액 및 이를 이용한 절연피막 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (4)

  1. Mg, Ca 및 Zn 중 선택된 1종 또는 2종 이상이 함유된 크롬산 금속염에, 상기 금속염 중 무수크롬산(CrO3) 100g에 대하여 콜로이달 실리카를 고형분으로 30∼220g, 별도의 물을 첨가하면서 분산시킨 분말상 실리카 분산액을 고형분으로 5∼20g 및 다가알코올 5∼25g 첨가하여 조성됨을 특징으로 하는 도포안정성 및 밀착성이 우수한 절연피막 형성용 처리액.
  2. 제 1항에 있어서, 상기 다가알콜은 그리세린 및 에틸렌 글리콜 중 선택된 1종 이상인 것을 특징으로 하는 도포안정성 및 밀착성이 우수한 절연피막 형성용 처리액.
  3. Mg, Ca 및 Zn 중 선택된 1종 또는 2종 이상이 함유된 크롬산 금속염에, 상기 금속염 중 무수크롬산(CrO3) 100g에 대하여 콜로이달 실리카를 고형분으로 30∼220g, 별도의 물을 첨가하면서 분산시킨 분말상 실리카 분산액을 고형분으로 5∼20g 및 다가알코올 5∼25g 첨가하여 조성되는 절연 피막 형성용 처리액을 무방향성 전기강판 표면에 건조피막 두께가 편면당 2.0∼4.5μm범위가 되도록 도포한 후, 200∼900℃의 온도 범위에서 10∼80초간 소둔하는 것을 포함하여 이루어지는 도포안정성 및 밀착성이 우수한 절연피막 제조방법.
  4. 제 3항에 있어서, 상기 다가 알콜은 그리세린 및 에틸렌 글리콜 중 선택된 1종 이상인 것을 특징으로 하는 도포안정성 및 밀착성이 우수한 절연피막 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950032187A 1995-09-27 1995-09-27 도포안정성 및 밀착성이 우수한 절연피막 형성용 처리액 및 이를 이용한 절연 피막 제조방법 KR100226889B1 (ko)

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KR1019950032187A KR100226889B1 (ko) 1995-09-27 1995-09-27 도포안정성 및 밀착성이 우수한 절연피막 형성용 처리액 및 이를 이용한 절연 피막 제조방법

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KR1019950032187A KR100226889B1 (ko) 1995-09-27 1995-09-27 도포안정성 및 밀착성이 우수한 절연피막 형성용 처리액 및 이를 이용한 절연 피막 제조방법

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