KR950018654A - Manufacturing method of coated chromate-treated galvanized steel sheet with excellent surface appearance - Google Patents

Manufacturing method of coated chromate-treated galvanized steel sheet with excellent surface appearance Download PDF

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Publication number
KR950018654A
KR950018654A KR1019930029655A KR930029655A KR950018654A KR 950018654 A KR950018654 A KR 950018654A KR 1019930029655 A KR1019930029655 A KR 1019930029655A KR 930029655 A KR930029655 A KR 930029655A KR 950018654 A KR950018654 A KR 950018654A
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KR
South Korea
Prior art keywords
steel sheet
chromate
zinc
producing
treated
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KR1019930029655A
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Korean (ko)
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KR960007772B1 (en
Inventor
김상헌
Original Assignee
조말수
포항종합제철 주식회사
백덕현
재단법인산업과학기술연구소
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Application filed by 조말수, 포항종합제철 주식회사, 백덕현, 재단법인산업과학기술연구소 filed Critical 조말수
Priority to KR1019930029655A priority Critical patent/KR960007772B1/en
Publication of KR950018654A publication Critical patent/KR950018654A/en
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Publication of KR960007772B1 publication Critical patent/KR960007772B1/en

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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
    • C23C22/78—Pretreatment of the material to be coated
    • 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
    • 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
    • C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
    • C23C2222/20—Use of solutions containing silanes

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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 아연 도금층의 용해, 크로메이트 처리용액 조성 및 피막 부착량을 제어함으로써 표면외관이 우수한 도포형 크로메이트 처리 강판의 제조방법을 제공하고자 하는데, 그 목적이 있다.An object of the present invention is to provide a method for producing a coated chromate-treated steel sheet having excellent surface appearance by controlling the dissolution of the zinc plating layer, the composition of the chromate treatment solution and the amount of coating.

본 발명은 크로메이트 처리 아연 및 아연계 합금 전기도금강판의 제조방법에 있어서, 크로메이트를 처리하기 직전에, 상기 강판의 아연도금층을 0.1-1.0g/ℓ용해시킨 후, 수세 및 건조를 행한 다음, 총 크롬이온 농도 : 2-50g/ℓ, 상기 총크롬중 스트론티움크로메이트의 함량 : 5-20중량%, 콜로이달실리카 : 50-100g/ℓ, 및 에폭시계 실란화합물 : 0.1-3.0g/ℓ로 조성되고, 용액의 pH가 3-5인 크로메이트 처리 용액을 상기 강판에 총피막 부착량을 0.2-2.0g/㎡, 피막중의 Cr 부착량이 5-20mg/㎡가 되도록 도포한 후, 건조하는 것을 특징으로 하는 표면외관이 우수한 도포형 크로메이트 처리 아연 도금강판의 제조방법에 관한 것을 그 요지로 한다.According to the present invention, in the method for producing a chromate-treated zinc and zinc-based alloy electroplated steel sheet, immediately before the chromate treatment, 0.1-1.0 g / l of the zinc-plated layer of the steel sheet is dissolved, followed by washing with water and drying. Chromium ion concentration: 2-50 g / l, content of strontium chromate in the total chromium: 5-20% by weight, colloidal silica: 50-100 g / l, and epoxy-based silane compound: 0.1-3.0 g / l The composition is applied, and the chromate treatment solution having a pH of 3-5 is applied to the steel sheet so that the total coating amount is 0.2-2.0 g / m 2 and the Cr adhesion amount in the film is 5-20 mg / m 2, followed by drying. The summary relates to a method for producing a coated chromate-treated galvanized steel sheet having an excellent surface appearance.

Description

표면외관이 우수한 도포형 크로메이트 처리 아연도금강판의 제조방법Manufacturing method of coated chromate-treated galvanized steel sheet with excellent surface appearance

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

Claims (1)

크로메이트 처리 아연 및 아연계 합금 전기도금강판의 제조방법에 있어서, 크로메이트를 처리하기 직전에, 상기 강판의 아연도금층을 0.1-1.0g/ℓ용해시킨 후, 수세 및 건조를 행한 다음, 총 크롬이온 농도 : 2-50g/ℓ, 상기 총크롬 중 스트론티움 크로메이트의 함량 : 5-20중량%, 콜로이달 실리카 : 50-100g/ℓ, 및 에폭시계 실란화합물 : 0.1-3.0g/ℓ로 조성되고, 용액의 pH가 3-5인 크로메이트 처리 용액을 상기 강판에 총피막부착량을 0.2-2.0g/㎡, 피막중의 Cr 부착량이 5-20mg/㎡가 되도록 도포한 후, 건조하는 것을 특징으로 하는 표면외관이 우수한 도포형 크로메이트 처리 아연 도금강판의 제조방법.In the method for producing a chromate-treated zinc and zinc-based alloy electroplated steel sheet, immediately before the chromate treatment, the zinc-plated layer of the steel sheet is dissolved 0.1-1.0 g / l, followed by washing with water and drying, followed by total chromium ion concentration. 2-50 g / l, the content of strontium chromate in the total chromium: 5-20 wt%, colloidal silica: 50-100 g / l, and epoxy-based silane compound: 0.1-3.0 g / l, The chromate treatment solution having a pH of 3-5 is applied to the steel sheet so that the total coating amount is 0.2-2.0 g / m 2 and the Cr adhesion amount in the coating is 5-20 mg / m 2, and then the surface is dried. A method for producing a coated chromate-treated galvanized steel sheet having excellent appearance. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930029655A 1993-12-24 1993-12-24 Method for manufacturing a covered chromate galvanized steel plate with an excellent surface appearance KR960007772B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930029655A KR960007772B1 (en) 1993-12-24 1993-12-24 Method for manufacturing a covered chromate galvanized steel plate with an excellent surface appearance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930029655A KR960007772B1 (en) 1993-12-24 1993-12-24 Method for manufacturing a covered chromate galvanized steel plate with an excellent surface appearance

Publications (2)

Publication Number Publication Date
KR950018654A true KR950018654A (en) 1995-07-22
KR960007772B1 KR960007772B1 (en) 1996-06-12

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100596463B1 (en) * 2003-12-31 2006-07-03 주식회사 포스코 Resin solution being coated on the steel sheet for shrinkage band and manufacturing method of this steel sheet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100596463B1 (en) * 2003-12-31 2006-07-03 주식회사 포스코 Resin solution being coated on the steel sheet for shrinkage band and manufacturing method of this steel sheet

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Publication number Publication date
KR960007772B1 (en) 1996-06-12

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