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KR890012022A - 내흑변성, 내식성, 내지문성 및 알칼리탈지후의 크롬고정율에 뛰어난, 크롬산염처리 전기아연도금강판의 제조방법 - Google Patents

내흑변성, 내식성, 내지문성 및 알칼리탈지후의 크롬고정율에 뛰어난, 크롬산염처리 전기아연도금강판의 제조방법 Download PDF

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Publication number
KR890012022A
KR890012022A KR1019890000642A KR890000642A KR890012022A KR 890012022 A KR890012022 A KR 890012022A KR 1019890000642 A KR1019890000642 A KR 1019890000642A KR 890000642 A KR890000642 A KR 890000642A KR 890012022 A KR890012022 A KR 890012022A
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KR
South Korea
Prior art keywords
steel sheet
resistance
chromium
range
chromate
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KR1019890000642A
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English (en)
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KR930011768B1 (ko
Inventor
쓰도무 와다나베
마사아끼 야마시다
마사루 사기야마
신지 호리
Original Assignee
니이미야 유우
엔케이케이 코오포레이숀
사도미 유다까
니흔 파아커라이징 가부시기 가이샤
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Publication of KR890012022A publication Critical patent/KR890012022A/ko
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Publication of KR930011768B1 publication Critical patent/KR930011768B1/ko

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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • 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

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

Abstract

내용 없음.

Description

내흑변성, 내식성, 내지문성 및 알칼리탈지후의 크롬고정율에 뛰어난, 크롬산염처리 전기아연도금강판의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 크롬산염처리 전기아연도금강판에 있어서의 내흑변성과, 염수분무시험에 있어서의 백청발생까지의 시간과, 그리고건조를 위한 가열온도 사이의 관계를 나타낸 그래프.
제2도는 크롬산염처리 전기아연도금강판에 있어서의 알칼리탈지후의 크롬고정율과, 내지문성과, 그리고 건조를 위한 가열온도 사이의 관계를 나타낸 그래프.

Claims (6)

  1. Cr6+,Cr3+및 실리카졸을 주성분으로 함유하고, Cr6+와 Cr3+의 중량비(Cr6+/Cr3+)가, 63/37-80/20의 범위내에 있으며, 실리카와 크롬전체량의 중량비(SiO2/Cr)가 1/2-8/1의 범위내에 있는 크롬산염처리액을, 전기아연도금강판의 적어도 한편의 아연도금층의 위에 도포하여, 전기아연도금강판의 아연도금층위에 1면당 20-120mg/㎡의 범위내에 크롬층을 형성하고, 이어서, 이와같이 크롬산염처리액을 도포한 전기아연도금강판을, 그 전후에 있어서 수세함이 없이 160-250℃의 범위내의 온도로 가열하여 이것을 건조시키는 공정으로 부터 되는 것을 특징으로하는 내흑변성, 내식성, 내지문성 및 알칼리탈지후의 크롬고정율에 뛰어난, 크롬산염처리전기아연금강판의 제조방법.
  2. 제1항에 있어서, 크롬산염처리액은, PO₄3-및 Zn2+을 더욱 부가적으로 함유하고 있고, PO₄3-와 크롬전체량의 중량비(PO4 3-/Cr)는 1/30-2/1의 범위내에 있고, Zn2+와 Cr6+의 중량비(Zn2+/Cr(+)는 1/40-2/3의 범위내에 있음을 특징으로하는 내흑변성, 내식성, 내지문성 및 알칼리탈지후의 크롬고정율에 뛰어난, 크롬산염처리전기아연도금강판의 제조방법.
  3. 제1항 또는 제2항에 있어서, 크롬산염처리액속에 있어서의 Cr6+와 Cr3+의 중량비(Cr6+/Cr3+)는, 65/35-75/25의 범위내에 있음을 특징으로하는 내흑변성, 내식성, 내지문성 및 알칼리탈지후의 크롬고정율에 뛰어난, 크롬산염처리전기아연도금강판의 제조방법.
  4. 제1항 또는 제2항에 있어서, 크롬산염처리액속에 있어서의 실리카와 크롬전체량의 중량비(SiO2/Cr)는 1/1-7/1의 범위내에 있음을 특징으로 하는 내흑변성, 내식성, 내지문성 및 알칼리탈지후의 크롬고정율에 뛰어난, 크롬산염처리전기아연도금강판의 제조방법.
  5. 제1항 또는 제2항에 있어서, 전기아연도금강판의 아연도금층위에 형성되는 크롬층의 량은 1면당, 30-90mg/㎡의 범위내에 있음을 특징으로 하는 내흑변성, 내식성, 내지문성 및 알칼리탈지후의 크롬고정율에 뛰어난, 크롬산염처리전기아연도금강판의 제조방법.
  6. 제1항 또는 제2항에 있어서, 크롬산염처리액을 도포한 전기아연도금강판의 가열온도는, 180-230℃의 범위내에 있음을 특징으로 하는 내흑변성, 내식성, 내지문성 및 알칼리탈지후의 크롬고정율에 뛰어난, 크롬산염처리 전기아연도금강판의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890000642A 1988-01-22 1989-01-21 내흑변성, 내식성, 내지문성 및 알칼리 탈지후의 크롬 고정율이 우수한 크로메이트처리 전기 아연 도금 강판의 제조방법 KR930011768B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP63-12132 1988-01-22
JP88-12132 1988-01-22
JP1213288 1988-01-22

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KR890012022A true KR890012022A (ko) 1989-08-24
KR930011768B1 KR930011768B1 (ko) 1993-12-20

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KR1019890000642A KR930011768B1 (ko) 1988-01-22 1989-01-21 내흑변성, 내식성, 내지문성 및 알칼리 탈지후의 크롬 고정율이 우수한 크로메이트처리 전기 아연 도금 강판의 제조방법

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JP (1) JPH0794715B2 (ko)
KR (1) KR930011768B1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100311804B1 (ko) * 1998-12-01 2001-11-22 이구택 저온반응성과 내식성이 우수한 내지문용액 및 이를 이용한 내지문강판의 제조방법

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0753912B2 (ja) * 1990-05-31 1995-06-07 川崎製鉄株式会社 接着下地用表面処理鋼板の製造方法
JP2628782B2 (ja) * 1990-10-08 1997-07-09 日本パーカライジング株式会社 亜鉛系めっき鋼板のクロメート処理方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5217340A (en) * 1975-08-01 1977-02-09 Kansai Paint Co Ltd Metal surface treatment
JPH08982B2 (ja) * 1986-02-28 1996-01-10 日本パ−カライジング株式会社 金属のクロメ−ト処理方法
JPS63171685A (ja) * 1986-12-30 1988-07-15 Nippon Steel Corp 耐食性白色クロメ−ト処理方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100311804B1 (ko) * 1998-12-01 2001-11-22 이구택 저온반응성과 내식성이 우수한 내지문용액 및 이를 이용한 내지문강판의 제조방법

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JPH01283382A (ja) 1989-11-14
JPH0794715B2 (ja) 1995-10-11
KR930011768B1 (ko) 1993-12-20

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