KR890012022A - Method for producing chromate treated electrogalvanized steel sheet excellent in blackening resistance, corrosion resistance, fingerprint resistance and chromium fixation after alkali degreasing - Google Patents

Method for producing chromate treated electrogalvanized steel sheet excellent in blackening resistance, corrosion resistance, fingerprint resistance and chromium fixation after alkali degreasing 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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South Korea
Prior art keywords
steel sheet
resistance
chromium
range
chromate
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KR1019890000642A
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Korean (ko)
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KR930011768B1 (en
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/en
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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.No content.

Description

내흑변성, 내식성, 내지문성 및 알칼리탈지후의 크롬고정율에 뛰어난, 크롬산염처리 전기아연도금강판의 제조방법Method for producing chromate treated electrogalvanized steel sheet excellent in blackening resistance, corrosion resistance, fingerprint resistance and chromium fixation after alkali degreasing

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 크롬산염처리 전기아연도금강판에 있어서의 내흑변성과, 염수분무시험에 있어서의 백청발생까지의 시간과, 그리고건조를 위한 가열온도 사이의 관계를 나타낸 그래프.FIG. 1 is a graph showing the relationship between blackening resistance in chromate treated electrogalvanized steel sheet, time to white rust in salt spray test, and heating temperature for drying.

제2도는 크롬산염처리 전기아연도금강판에 있어서의 알칼리탈지후의 크롬고정율과, 내지문성과, 그리고 건조를 위한 가열온도 사이의 관계를 나타낸 그래프.2 is a graph showing the relationship between chromium fixation rate after alkali degreasing, fingerprint resistance, and heating temperature for drying in chromate treated electrogalvanized steel sheets.

Claims (6)

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.Cr 6+, Cr 3+, and containing as a main component and silica sol, in the range of the weight ratio (Cr 6+ / Cr 3+) of Cr 6+ and Cr 3+, 63 / 37-80 / 20 , and the silica The chromate treatment solution in which the weight ratio (SiO 2 / Cr) of the total amount of chromium is in the range of 1 / 2-8 / 1 is applied on at least one zinc plated layer of the galvanized steel sheet to form zinc in the galvanized steel sheet. A chromium layer was formed on the plated layer in the range of 20-120 mg / m2 per surface, and then the electrogalvanized steel sheet coated with the chromate treatment solution in this manner was subjected to a temperature in the range of 160-250 ° C without washing with water before and after. A process for producing a chromate-treated electrolytic zinc steel sheet excellent in blackening resistance, corrosion resistance, anti-fingerprint resistance, and chromium fixation after alkali degreasing, which is obtained by heating the product to a step of drying the same. 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.The chromate treatment solution according to claim 1, wherein the chromate treatment liquid further contains PO ' 3- and Zn 2+ , and the weight ratio (PO 4 3- / Cr) of PO' 3- and the total amount of chromium is 1 / 30-. in the range of 2/1, the weight ratio of Zn 2+ and Cr 6+ (Zn 2+ / Cr ( +) is 1 / 40-2 / 3 naeheuk modified, corrosion resistance, characterized in that in the range of, to expertise and A method for producing a chromate treated electrogalvanized steel sheet excellent in chromium fixation after alkali degreasing. 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.The weight ratio (Cr 6+ / Cr 3+ ) of Cr 6+ and Cr 3+ in the chromate treatment liquid is in the range of 65 / 35-75 / 25. A method for producing a chromate-treated electrogalvanized steel sheet excellent in blackening resistance, corrosion resistance, fingerprint resistance and chromium fixation after alkali degreasing. 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.The blackening resistance and corrosion resistance according to claim 1 or 2, wherein the weight ratio (SiO 2 / Cr) of the total amount of silica and chromium in the chromate treatment liquid is in the range of 1 / 1-7 / 1. A method for producing a chromate treated electrogalvanized steel sheet excellent in chromium fixation rate after corrosion, fingerprinting and alkali degreasing. 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.The blackening resistance, corrosion resistance, anti-fingerprint and alkali resistance according to claim 1 or 2, wherein the amount of the chromium layer formed on the galvanized layer of the galvanized steel sheet is in the range of 30-90 mg / m2 per surface. A method for producing a chromate-treated electrogalvanized steel sheet excellent in chromium fixation after degreasing. 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.The chromium after blackening, corrosion resistance, rubbing and alkali degreasing according to claim 1 or 2, wherein the heating temperature of the electrogalvanized steel sheet coated with the chromate treatment solution is in the range of 180 to 230 ° C. Manufacturing method of chromate-treated electrogalvanized steel sheet excellent in fixing rate. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890000642A 1988-01-22 1989-01-21 Method of making chromated electro-galvanized steel sheet having excellent blackning resistance, corrosion resistance and chrom-fitting ratio after alkaline removal of fat KR930011768B1 (en)

Applications Claiming Priority (3)

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

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

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100311804B1 (en) * 1998-12-01 2001-11-22 이구택 Fingerprint solution with excellent low temperature reactivity and corrosion resistance and manufacturing method of inner fingerprint steel sheet using the same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0753912B2 (en) * 1990-05-31 1995-06-07 川崎製鉄株式会社 Method for manufacturing surface-treated steel sheet for adhesive base
JP2628782B2 (en) * 1990-10-08 1997-07-09 日本パーカライジング株式会社 Chromate treatment method for galvanized steel sheet

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* 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 (en) * 1986-02-28 1996-01-10 日本パ−カライジング株式会社 Metal chromating method
JPS63171685A (en) * 1986-12-30 1988-07-15 Nippon Steel Corp Formation of anticorrosive white chromate film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100311804B1 (en) * 1998-12-01 2001-11-22 이구택 Fingerprint solution with excellent low temperature reactivity and corrosion resistance and manufacturing method of inner fingerprint steel sheet using the same

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

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