KR950018657A - Cold rolled steel sheet with excellent phosphate treatment and its manufacturing method - Google Patents

Cold rolled steel sheet with excellent phosphate treatment and its manufacturing method Download PDF

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Publication number
KR950018657A
KR950018657A KR1019930031046A KR930031046A KR950018657A KR 950018657 A KR950018657 A KR 950018657A KR 1019930031046 A KR1019930031046 A KR 1019930031046A KR 930031046 A KR930031046 A KR 930031046A KR 950018657 A KR950018657 A KR 950018657A
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KR
South Korea
Prior art keywords
steel sheet
rolled steel
cold rolled
manufacturing
phosphate treatment
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Application number
KR1019930031046A
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Korean (ko)
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KR960009197B1 (en
Inventor
조용균
안덕수
Original Assignee
조말수
포항종합제철 주식회사
백덕현
재단법인산업과학기술연구소
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Application filed by 조말수, 포항종합제철 주식회사, 백덕현, 재단법인산업과학기술연구소 filed Critical 조말수
Priority to KR1019930031046A priority Critical patent/KR960009197B1/en
Publication of KR950018657A publication Critical patent/KR950018657A/en
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Publication of KR960009197B1 publication Critical patent/KR960009197B1/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
    • 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
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0278—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment
    • 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
    • C23C22/07—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 phosphates
    • C23C22/08—Orthophosphates

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

본 발명은 자동차 내.외판 및 가전제품용으로 사용되는 냉간압연강판을 제조하는 방법에 관한 것으로써, 냉연강판에 구리를 소량 부착시키므로써, 인산염 처리성을 향상시킬 수 있는 냉연강판 및 그 제조 방법을 제공하고자 하는데, 그 목적이 있다.The present invention relates to a method for manufacturing a cold rolled steel sheet used for automobile interior and exterior plates and home appliances, by attaching a small amount of copper to the cold rolled steel sheet, the cold rolled steel sheet and a method for manufacturing the same can be improved It is intended to provide a purpose.

본 발명은 통상의 냉연강판에 있어서, 그 표면에 구리(Cu)가 0.2-20mg/m2부분피복되어 있는 인산염성처리가 우수한 냉연강판 및 이를 제조하는 방법을 그 요지로 한다.SUMMARY OF THE INVENTION The present invention provides a summary of a cold rolled steel sheet having excellent phosphate treatment, in which a copper (Cu) is 0.2-20 mg / m 2 partially coated on a surface thereof, and a method of manufacturing the same.

Description

인산염처리성이 우수한 냉간압연 강판 및 그 제조방법Cold rolled steel sheet with excellent phosphate treatment and its manufacturing method

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

제1도는 종래의 냉간압연강판 소둔처리 공정 및 본 발명에 의한 소둔처리 공정도.1 is a conventional cold rolled steel sheet annealing step and the annealing step according to the present invention.

제2도는 종래의 냉간압연강판 및 본 발명에 의해 처리된 냉간압연강판의 인산염조직에 대한 확대조직사진.2 is an enlarged texture photograph of a conventional cold rolled steel sheet and a phosphate structure of a cold rolled steel sheet treated by the present invention.

Claims (2)

통상의 냉연연강판에 있어서, 그 표면에 구리(Cu)가 0.2-20mg/m2의 부착량으로 부분 피복되어 있는 인산염처리성이 우수한 냉간압연강판.In the common cold rolled steel sheet, the cold rolled steel sheet excellent in the phosphate treatment property in which copper (Cu) is partially coated by the adhesion amount of 0.2-20 mg / m < 2 > on the surface. 냉간압강판을 탈지한 후 연속소둔한 다음, 수냉, 건조 및 조절압연을 행하여 냉간압연강판을 제조하는 방법에 있어서, 상기 수냉시 연속소둔냉간압연강판을 1.0-5g/ℓ의 Cu2+를 함유하는 도금액에 2-30초동안 유지하여 수냉과 동시에 강판표면에 구리(Cu)를 0.2-20mg/m2의 부착량으로 부분 피복시키는 것을 특징으로 하는 인산염처리성이 우수한 냉간압연강판의 제조방법.In the method of manufacturing a cold rolled steel sheet by degreasing the cold rolled steel sheet, followed by continuous annealing, followed by water cooling, drying and controlled rolling, wherein the continuous cold-annealed cold rolled steel sheet contains 1.0-5 g / L of Cu 2+ . A method of manufacturing a cold rolled steel sheet having excellent phosphate treatment property, which is kept in a plating solution for 2-30 seconds and partially coated with copper (Cu) at an adhesion amount of 0.2-20 mg / m 2 on the surface of the steel sheet. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930031046A 1993-12-29 1993-12-29 Cold rolled steel sheets with an excellent phosphating galvanized surface and the method therefor KR960009197B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930031046A KR960009197B1 (en) 1993-12-29 1993-12-29 Cold rolled steel sheets with an excellent phosphating galvanized surface and the method therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930031046A KR960009197B1 (en) 1993-12-29 1993-12-29 Cold rolled steel sheets with an excellent phosphating galvanized surface and the method therefor

Publications (2)

Publication Number Publication Date
KR950018657A true KR950018657A (en) 1995-07-22
KR960009197B1 KR960009197B1 (en) 1996-07-16

Family

ID=19374052

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930031046A KR960009197B1 (en) 1993-12-29 1993-12-29 Cold rolled steel sheets with an excellent phosphating galvanized surface and the method therefor

Country Status (1)

Country Link
KR (1) KR960009197B1 (en)

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Publication number Publication date
KR960009197B1 (en) 1996-07-16

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