KR940009365A - 아연도금강판용 크로메이트 용액의 제조방법 - Google Patents

아연도금강판용 크로메이트 용액의 제조방법 Download PDF

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KR940009365A
KR940009365A KR1019920019912A KR920019912A KR940009365A KR 940009365 A KR940009365 A KR 940009365A KR 1019920019912 A KR1019920019912 A KR 1019920019912A KR 920019912 A KR920019912 A KR 920019912A KR 940009365 A KR940009365 A KR 940009365A
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South Korea
Prior art keywords
solution
steel sheet
galvanized steel
sif
chromate solution
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KR1019920019912A
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English (en)
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KR950004233B1 (ko
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이규헌
김상헌
배대철
신정철
Original Assignee
정명식
포항종합제철 주식회사
백덕현
재단법인산업과학기술연구소
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Priority to KR1019920019912A priority Critical patent/KR950004233B1/ko
Publication of KR940009365A publication Critical patent/KR940009365A/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
    • C23C22/34—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 fluorides or complex fluorides
    • C23C22/37—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 fluorides or complex fluorides containing also hexavalent chromium compounds
    • C23C22/38—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 fluorides or complex fluorides containing also hexavalent chromium compounds containing also phosphates
    • 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
    • C23C22/34—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 fluorides or complex fluorides
    • C23C22/37—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 fluorides or complex fluorides containing also hexavalent chromium compounds

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

본 발명은 아연도금강판용 크로메이트 용액의 제조방법에 관한 것으로서, 주제 용액과 보조제용액으로 구분하여 제조한후, 두 용액을 혼합하여 크로메이트 용액을 제조하므로서, Si 및/또는 Zr의 불소화합물을 다량함유하여 아연도금강판에 우수한 내식성을 부여할 수 있는 아연도금강판용 크로메이트 용액을 제공하고자 하는데, 그 목적이 있다.
본발명은 Cr+6:100-180gℓ 및 PO4 -3:50-120g/ℓ로 이루어진 주제용액; 및 Cr+3:100-180g/ℓ 및 PO:4 -3:100-160g/ℓ로 이루어지고 여기에 16-100g/ℓ의 SiF6 -2및 20-120g/ℓ의 ZrF6 -2를 단독 또는 복합으로 첨가하여 이루어진 보조제용액을 제조한 다음, 사기 주제용액과 보조제용액을 혼합비가 85:15~50:50이 되도록 혼합하여 아연도금강판용 크로메이트 용액을 제조하는 방법을 그 요지로 한다.

Description

아연도금강판용 크로메이트 용액의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 6가 크롬(Cr+6) 및 3가 크롬(Cr+3) 함량비에 따른 불소 화합물의 용해도 변화를 나타내는 그래프, 제3도는 발명예 및 비교예에 대한 초기 백청 발생시간을 나타내는 그래프.

Claims (2)

  1. Cr+6:10-180g/ℓ, 및 PO4 -3:50-120g/ℓ로 이루어진 주제용액; 및 Cr+3:100-180g/ℓ 및 PO4 -3:100-160g/ℓ 이루어지고 여기에 16-100g/ℓ의 SiF6 -2및 20-120g/ℓ의 Zr/F6 -2를 단독 도는 복합으로 첨가하여 이루어진 보조제용액을 제조한 다음, 상기 주제용액과 보조제용액을 혼합비가 85:15~50:50이 되도록 혼합함을 특징으로 하는 아연도금 강판용 크로메이트 용액의 제조방법.
  2. 제1항에 있어서, 상기 Cr+6의 공급원이 CrO3, K2CrO7및 Na2Cr2O7으로 이루어진 그룹중에서 선택된 적어도 1종이고; 상기 ZrF6 -2의 공급원이 Zr(NH4)2F6또는 K2ZrF6이고; 그리고 상기 SiF6 -2의 공급원이 K2SiF6,H2SiF6,(NH4)SiF6및 Na2SiF6로 이루어진 그룹중에서 선택된 적어도 1종인 것을 특징으로하는 아연도금강판용 크로메이트 용액의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920019912A 1992-10-28 1992-10-28 아연도금강판용 크로메이트용액의 제조방법 KR950004233B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920019912A KR950004233B1 (ko) 1992-10-28 1992-10-28 아연도금강판용 크로메이트용액의 제조방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920019912A KR950004233B1 (ko) 1992-10-28 1992-10-28 아연도금강판용 크로메이트용액의 제조방법

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KR940009365A true KR940009365A (ko) 1994-05-20
KR950004233B1 KR950004233B1 (ko) 1995-04-27

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100361513B1 (ko) * 2000-01-21 2002-11-21 주식회사 하이닉스반도체 반도체장치의 이중 웰 및 그 격리방법
US6583060B2 (en) * 2001-07-13 2003-06-24 Micron Technology, Inc. Dual depth trench isolation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100361513B1 (ko) * 2000-01-21 2002-11-21 주식회사 하이닉스반도체 반도체장치의 이중 웰 및 그 격리방법
US6583060B2 (en) * 2001-07-13 2003-06-24 Micron Technology, Inc. Dual depth trench isolation

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