KR970043248A - 도금밀착성이 우수한 용융아연 도금강판 제조방법 - Google Patents

도금밀착성이 우수한 용융아연 도금강판 제조방법 Download PDF

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Publication number
KR970043248A
KR970043248A KR1019950048479A KR19950048479A KR970043248A KR 970043248 A KR970043248 A KR 970043248A KR 1019950048479 A KR1019950048479 A KR 1019950048479A KR 19950048479 A KR19950048479 A KR 19950048479A KR 970043248 A KR970043248 A KR 970043248A
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South Korea
Prior art keywords
steel sheet
dip galvanized
hot
plating
galvanized steel
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KR1019950048479A
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English (en)
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KR100244632B1 (ko
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전선호
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김종진
포항종합제철주식회사
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Priority to KR1019950048479A priority Critical patent/KR100244632B1/ko
Publication of KR970043248A publication Critical patent/KR970043248A/ko
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Publication of KR100244632B1 publication Critical patent/KR100244632B1/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
    • 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
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
    • 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
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer

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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)
  • Inorganic Chemistry (AREA)
  • Coating With Molten Metal (AREA)

Abstract

본 발명은 건자재용, 가전용 및 자동차용 강판으로 사용되는 용융아연 도금강판의 제조방법에 관한 것으로, Cr 및 Si를 단독 또는 복합으로 0.2중량%이상으로 함유하는 고강도강 및 고가공성강을 도금소재로하여 용융아연 도금시 강판 인입온도와 도금욕의 Al농도 및 온도를 적절히 제어하므로서 미도금 발생이 없고 도금 밀착성이 우수한 용융아연 도금 강판을 제공하고자 하는데, 그 목적있다. 상기한 목적을 달성하기 위한 본 발명은 Si 및 Cr을 단독 또는 복합으로 0.2중량%이상으로 함유하는 고강도강 및 고가공성강을 도금소재로하여 용융아연 도금 강판을 제조하는 방법에 있어서 상기 도금소재 강판을 열처리한후, 열처리된 소재강판을 480-500℃의 동도범위로 유지한 상태에서 Al농도가 0.25-0.5중량%범위이고 그 온도가 480-500℃의 범위인 도금욕에 침적하여 용융아연 도금하는 것을 포함하여 이루어지는 도금밀착성이 우수한 용융아연 도금강판의 제조방법에 관한 것을 그 요지로 한다.

Description

도금밀착성이 우수한 용융아연 도금강판 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 도금욕 온도 및 강판 인입온도 변화에 따른 미도금분율의 변화를 나타낸 그래프,
제2도는 도금욕의 Al농도 변화에 따른 도금밀착성 변화를 나타낸 그래프

Claims (1)

  1. Si 및 Cr을 단독 또는 복합으로 0.2중량%이상으로 함유하는 고강도강 및 고가공성강을 도금소재로하여 용융아연 도금 강판을 제조하는 방법에 있어서, 상기 도금소재 강판을 열처리한후, 열처리된 소재강판을 480-500℃의 동도범위로 유지한 상태에서 Al농도가 0.25-0.5중량%범위이고 그 온도가 480-500℃의 범위인 도금욕에 침적하여 용융아연 도금하는 것을 포함하여 이루어지는 도금밀착성이 우수한 용융아연 도금강판의 제조방법
KR1019950048479A 1995-12-11 1995-12-11 도금 밀착성이 우수한 용융아연 도금강판 제조방법 KR100244632B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950048479A KR100244632B1 (ko) 1995-12-11 1995-12-11 도금 밀착성이 우수한 용융아연 도금강판 제조방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950048479A KR100244632B1 (ko) 1995-12-11 1995-12-11 도금 밀착성이 우수한 용융아연 도금강판 제조방법

Publications (2)

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KR970043248A true KR970043248A (ko) 1997-07-26
KR100244632B1 KR100244632B1 (ko) 2000-03-02

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KR1019950048479A KR100244632B1 (ko) 1995-12-11 1995-12-11 도금 밀착성이 우수한 용융아연 도금강판 제조방법

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100370581B1 (ko) * 1998-12-30 2003-03-17 주식회사 포스코 도금밀착성이 우수한 고강도 열연용융아연 도금강판의 제조방법

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0726360A (ja) * 1993-07-09 1995-01-27 Sumitomo Metal Ind Ltd 低表面粗度合金化溶融亜鉛めっき鋼板の製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100370581B1 (ko) * 1998-12-30 2003-03-17 주식회사 포스코 도금밀착성이 우수한 고강도 열연용융아연 도금강판의 제조방법

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