KR950018652A - Manufacturing method of mini-spangle hot dip galvanized steel sheet with excellent phosphate treatment - Google Patents

Manufacturing method of mini-spangle hot dip galvanized steel sheet with excellent phosphate treatment Download PDF

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Publication number
KR950018652A
KR950018652A KR1019930029152A KR930029152A KR950018652A KR 950018652 A KR950018652 A KR 950018652A KR 1019930029152 A KR1019930029152 A KR 1019930029152A KR 930029152 A KR930029152 A KR 930029152A KR 950018652 A KR950018652 A KR 950018652A
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South Korea
Prior art keywords
steel sheet
mini
phosphate
galvanized steel
phosphate treatment
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Application number
KR1019930029152A
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Korean (ko)
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KR960004626B1 (en
Inventor
김종상
이윤주
윤재웅
Original Assignee
조말수
포항종합제철 주식회사
백덕현
재단법인산업과학기술연구소
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Application filed by 조말수, 포항종합제철 주식회사, 백덕현, 재단법인산업과학기술연구소 filed Critical 조말수
Priority to KR1019930029152A priority Critical patent/KR960004626B1/en
Publication of KR950018652A publication Critical patent/KR950018652A/en
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Publication of KR960004626B1 publication Critical patent/KR960004626B1/en

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Classifications

    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-treatment
    • C23C2/265—After-treatment by applying solid particles to the molten 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
    • C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C23C2/40—Plates; Strips

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

본 발명은 용융아연도금욕으로부터 인양된 강판에 부착된 용융아연이 응고하기 직전 Fe가 함유된 인산염 수용액을 분무함으로써 아연도금강판의 도금층 표면에 잔류하는 Fe 성분에 의해 인산염처리성이 우수한 미니스팡글 용융아연도금강판을 제조하는 방법을 제공하고자 하는데, 그 목적이 있다.The present invention is sprayed with a phosphate solution containing Fe immediately before the molten zinc adhered to the steel sheet lifted from the hot dip galvanizing bath by spraying Fe mini-spangle excellent in phosphate treatment property by Fe component remaining on the surface of the galvanized steel sheet To provide a method for producing a hot-dip galvanized steel sheet, the purpose is.

본 발명은 강판을 용융아연도금하는 단계; 및 상기 강판 표면의 용융아연이 응고하기 직전 상기 강판 표면에 인산염 수용액을 분무처리하여 미니스팡글화하는 단계를 포함하는 미니스팡글 용융아연도금 강판의 제조방법에 있어서, 상기 미니스팡글화 단계에서 Fe 농도가 10-50g/ℓ, pH가 4-6인 인산염 수용액으로 상기 강판중의 Fe부착량이 1-20mg/m2이 되도록 하는 것을 특징으로 하는 인산염처리성이 우수한 미니스팡글 용융아연도금강판의 제조방법을 그 요지로 한다.The present invention comprises the steps of hot-dip galvanizing the steel sheet; And minispangling by spraying an aqueous solution of phosphate on the surface of the steel sheet immediately before the molten zinc on the surface of the steel sheet solidifies, wherein the Fe concentration in the minispangling step 10-50 g / l, pH 4-6 aqueous solution of phosphate in the steel sheet to produce 1 to 20 mg / m 2 of the phosphate treatment of mini-spangle hot-dip galvanized steel sheet with excellent phosphate treatment That's the point.

Description

인산염처리성이 우수한 미니스팡글 용융아연도금강판의 제조방법Manufacturing method of mini-spangle hot dip galvanized steel sheet with excellent phosphate treatment

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

제1도는 종래의 방법으로 제조된 미니스팡글 용융아연도금강판을 인산염 처리한 후 강판 표면의 인산피막층 조직을 나타낸 사진.Figure 1 is a photograph showing the structure of the phosphate coating layer on the surface of the steel sheet after phosphate treatment of the mini-spangle hot-dip galvanized steel sheet prepared by a conventional method.

제2도는 본 발명에 따라 제조된 미니스팡글 용융아연도금강판을 인산염 처리한 후 강판 표면의 인산피막층 조직을 나타낸 사진.Figure 2 is a photograph showing the structure of the phosphate coating layer on the surface of the steel sheet after phosphate treatment of the mini-spangle hot-dip galvanized steel sheet prepared according to the present invention.

Claims (1)

강판을 용융아연도금하는 단계 ; 및 상기 강판 표면의 용융아연이 응고하기 직전 상기 강판 표면에 인산염 수용액을 분무처리하여 미니스팡글화하는 단계를 포함하는 미니스팡글 용융아연도금강판의 제조방법에 있어서, 상기 미니스팡글화 단계에서 Fe 농도가 10-50g/l, pH가 4-6인 인산염 수용액으로 상기 강판중의 Fe부착량이 1-20mg/m2이 되도록 미니스팡글화하는 것을 특징으로 하는 인산염처리성이 우수한 미니스팡글 용융아연도금강판의 제조방법.Hot-dip galvanizing the steel sheet; And minispangling by spraying a phosphate aqueous solution on the surface of the steel sheet immediately before the molten zinc on the surface of the steel sheet is solidified, wherein the Fe concentration in the minispangling step 10-50 g / l, phosphate solution having a pH of 4-6, mini-spangle hot zinc zinc-plated with excellent phosphate treatment, characterized in that the mini-spangle so that the amount of Fe in the steel sheet 1-20mg / m 2 Method of manufacturing steel sheet. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930029152A 1993-12-22 1993-12-22 Method for making a galvanized steel sheet with a minispangle of an excellent phosphate treating KR960004626B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930029152A KR960004626B1 (en) 1993-12-22 1993-12-22 Method for making a galvanized steel sheet with a minispangle of an excellent phosphate treating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930029152A KR960004626B1 (en) 1993-12-22 1993-12-22 Method for making a galvanized steel sheet with a minispangle of an excellent phosphate treating

Publications (2)

Publication Number Publication Date
KR950018652A true KR950018652A (en) 1995-07-22
KR960004626B1 KR960004626B1 (en) 1996-04-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930029152A KR960004626B1 (en) 1993-12-22 1993-12-22 Method for making a galvanized steel sheet with a minispangle of an excellent phosphate treating

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KR960004626B1 (en) 1996-04-09

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