KR980002285A - A method of manufacturing a hot-dip galvanized hot-rolled steel sheet excellent in gloss and plating releasability at the time of inner diameter - Google Patents

A method of manufacturing a hot-dip galvanized hot-rolled steel sheet excellent in gloss and plating releasability at the time of inner diameter Download PDF

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Publication number
KR980002285A
KR980002285A KR1019960026588A KR19960026588A KR980002285A KR 980002285 A KR980002285 A KR 980002285A KR 1019960026588 A KR1019960026588 A KR 1019960026588A KR 19960026588 A KR19960026588 A KR 19960026588A KR 980002285 A KR980002285 A KR 980002285A
Authority
KR
South Korea
Prior art keywords
hot
rolled steel
steel sheet
dip galvanized
gloss
Prior art date
Application number
KR1019960026588A
Other languages
Korean (ko)
Inventor
이석규
진영구
Original Assignee
김종진
포항종합제철 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김종진, 포항종합제철 주식회사 filed Critical 김종진
Priority to KR1019960026588A priority Critical patent/KR980002285A/en
Publication of KR980002285A publication Critical patent/KR980002285A/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
    • C23C2/02—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
    • C23C2/0222—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating in a reactive atmosphere, e.g. oxidising or reducing atmosphere
    • 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
    • C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching
    • 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
    • C23C2/18—Removing excess of molten coatings from elongated material
    • C23C2/20—Strips; Plates
    • 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
    • C23C2/34—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

Abstract

본 발명은 광택성 및 내경시 도금박리성이 우수한 용융아연 도금 열연강판 제조방법에 관한 것으로, 특히 Al 0.16~0.28wt%, Pb 0.05~0.07wt, Sb 0.01~0.015wt%, Fe를 제외한 Sn, Cd, Bi등의 불가피성 불순물의 합계농도가 0.01wt% 이하로 하는 용융아연도금욕에서 산세설비 및 비산화성분위기의 가열로를 통과한 열연강판을 도금한 후, 가스와이핑에 의해 상기 도금 열연강판의 도금량을 조정하고 공기중에서 냉각시켜 용융아연도금 레귤러스팡글 열연강판을 제조한 다음, 상기 용융아연도금 레귤러스팡글 열연강판의 표면에 1~2wt%의 인산수소암모늄용액을 75~98g/㎡분사하여 제로스팡글화하는 것을 특징으로 하는 광택성 및 내경시 도금박리성이 우수한 용융아연도금 열연강판 제조방법.The present invention relates to a hot-dip galvanized hot-rolled steel sheet excellent in gloss and plating releasability. More particularly, the present invention relates to a hot-dip galvanized hot- A hot-rolled steel sheet having passed through a pickling facility and a heating furnace in a non-oxidizing atmosphere was plated on a hot dip galvanizing bath in which the total concentration of inevitable impurities such as Cd and Bi was 0.01 wt% or less, And then cooled in the air to prepare a hot-dip galvanized hot-rolled steel sheet. The surface of the hot-dip galvanized hot-rolled steel sheet was sprayed with 1 to 2 wt% of ammonium hydrogen phosphate solution at 75 to 98 g / Wherein the hot-dip galvanized hot-rolled steel sheet is excellent in gloss and plating releasability at the time of inner diameter.

Description

광택성 및 내경시 도금박리성이 우수한 용융아연도금 열연강판 제조방법A method of manufacturing a hot-dip galvanized hot-rolled steel sheet excellent in gloss and plating releasability at the time of inner diameter

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

Claims (1)

Al 0.16~0.25wt%, Pb 0.05~0.07wt, Sb 0.01~0.015wt%, Fe를 제외한 Sn, Cd, Bi 등의 불가피성 불순물의 합계농도가 0.01wt% 이하로 하는 용융아연도금욕에서 산세설비 및 비산화성분위기의 가열로를 통과한 열연강판을 도금한 후, 가스와이핑에 의해 상기 도금 열연강판의 도금량을 조정하고 공기중에서 냉각시켜 용융아연도금 레귤러스팡글 열연강판을 제조한 다음, 상기 용융아연도금 레귤러스팡글 열연강판의 표면에 1~2wt%의 인산수소암모늄용액을 75~98g/㎡분사하여 제로스팡글화하는 것을 특징으로 하는 광택성 및 내경시 도금박리성이 우수한 용융아연도금 열연강판 제조방법.The total concentration of inevitable impurities such as Sn, Cd, and Bi except for Fe is 0.01 wt% or less in a hot dip galvanizing bath containing 0.16 to 0.25 wt% of Al, 0.05 to 0.07 wt% of Pb, 0.01 to 0.015 wt% of Sb, Hot-rolled steel sheet having passed through a heating furnace in a non-oxidizing atmosphere was plated, the amount of plated hot-rolled steel plate plated by gas wiping was adjusted and cooled in air to prepare a hot-dip galvanized hot rolled steel sheet, A hot-dip galvanized hot-rolled steel sheet excellent in gloss and plating releasability at the time of inner diameter, characterized by being sprayed with 1 to 2 wt% ammonium hydrogen phosphate solution at 75 to 98 g / m 2 on the surface of a plated regular steel hot- Way. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960026588A 1996-06-29 1996-06-29 A method of manufacturing a hot-dip galvanized hot-rolled steel sheet excellent in gloss and plating releasability at the time of inner diameter KR980002285A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960026588A KR980002285A (en) 1996-06-29 1996-06-29 A method of manufacturing a hot-dip galvanized hot-rolled steel sheet excellent in gloss and plating releasability at the time of inner diameter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960026588A KR980002285A (en) 1996-06-29 1996-06-29 A method of manufacturing a hot-dip galvanized hot-rolled steel sheet excellent in gloss and plating releasability at the time of inner diameter

Publications (1)

Publication Number Publication Date
KR980002285A true KR980002285A (en) 1998-03-30

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KR1019960026588A KR980002285A (en) 1996-06-29 1996-06-29 A method of manufacturing a hot-dip galvanized hot-rolled steel sheet excellent in gloss and plating releasability at the time of inner diameter

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040003314A (en) * 2002-07-02 2004-01-13 주식회사 포스코 Manufacturing method for galvanized steel sheet
KR100436911B1 (en) * 1999-12-30 2004-06-23 주식회사 포스코 a method of manufacturing the Zero spangle electro-galvanized steel sheet with good surface property

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100436911B1 (en) * 1999-12-30 2004-06-23 주식회사 포스코 a method of manufacturing the Zero spangle electro-galvanized steel sheet with good surface property
KR20040003314A (en) * 2002-07-02 2004-01-13 주식회사 포스코 Manufacturing method for galvanized steel sheet

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