CA2052112A1 - Iron-zinc alloy plated steel sheet having two plating layers and excellent in electropaintability and press-formability - Google Patents

Iron-zinc alloy plated steel sheet having two plating layers and excellent in electropaintability and press-formability

Info

Publication number
CA2052112A1
CA2052112A1 CA2052112A CA2052112A CA2052112A1 CA 2052112 A1 CA2052112 A1 CA 2052112A1 CA 2052112 A CA2052112 A CA 2052112A CA 2052112 A CA2052112 A CA 2052112A CA 2052112 A1 CA2052112 A1 CA 2052112A1
Authority
CA
Canada
Prior art keywords
iron
zinc alloy
steel sheet
layer
plating
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA2052112A
Other languages
French (fr)
Other versions
CA2052112C (en
Inventor
Masaru Sagiyama
Masaki Abe
Akira Hiraya
Junichi Inagaki
Masaya Morita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2052112A1 publication Critical patent/CA2052112A1/en
Application granted granted Critical
Publication of CA2052112C publication Critical patent/CA2052112C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • 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
    • C23C28/02—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 only coatings only including layers of metallic material
    • C23C28/023—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 only coatings only including layers of metallic material only coatings of metal elements only
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/10—Electroplating with more than one layer of the same or of different metals
    • 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
    • C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/56—Electroplating: Baths therefor from solutions of alloys
    • C25D3/562—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electrochemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Coating With Molten Metal (AREA)

Abstract

An iron-zinc alloy plated steel sheet having two plating layers and excellent in electropaintability and press-formability, which comprises; a steel sheet;
an alloying-treated iron-zinc alloy dip-plating layer as a lower layer formed on at least one surface of the steel sheet; and an iron-zinc alloy electroplating layer as an upper layer, formed on the iron-zinc alloy dip-plating layer. The iron content in the iron-zinc alloy dip-plating layer is from 7 to 15 wt.%, and the plating weight of the iron-zinc alloy dip-plating layer is from 30 to 120 g/m2 per surface of the steel sheet. The iron content in the iron-zinc alloy electroplating layer is at least 60 wt.%.
The iron-zinc alloy electroplating layer has a plurality of dots of another iron-zinc alloy; the iron content in each of the plurality of dots of another iron-zinc alloy is under 60 wt.%; the total exposed area per unit area of the plurality of dots of another iron-zinc alloy is from 5 to 50% of the unit area of the iron-zinc alloy electroplating layer; the diameter of each of the plurality of dots of another iron-zinc alloy is from 1 to 100 µm; and the total plating weight of the iron-zinc alloy electro-plating layer and the plurality of dots of another iron-zinc alloy is from 1 to 10 g/m2 per surface of the steel sheet.
CA002052112A 1990-10-08 1991-09-24 Iron-zinc alloy plated steel sheet having two plating layers and excellent in electropaintability and press-formability Expired - Fee Related CA2052112C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2-270,171 1990-10-08
JP2270171A JP2536271B2 (en) 1990-10-08 1990-10-08 Iron-zinc alloy-plated steel sheet with multiple iron-zinc alloy plating layers with excellent electrodeposition paintability and workability

Publications (2)

Publication Number Publication Date
CA2052112A1 true CA2052112A1 (en) 1992-04-09
CA2052112C CA2052112C (en) 1997-09-09

Family

ID=17482523

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002052112A Expired - Fee Related CA2052112C (en) 1990-10-08 1991-09-24 Iron-zinc alloy plated steel sheet having two plating layers and excellent in electropaintability and press-formability

Country Status (5)

Country Link
EP (1) EP0480355B1 (en)
JP (1) JP2536271B2 (en)
KR (1) KR920008223A (en)
CA (1) CA2052112C (en)
DE (1) DE69107270T2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2320033B (en) * 1996-12-05 2001-06-06 Fmc Corp Improvements in strength and wear resistance of mechanical components
KR100349153B1 (en) * 1997-12-26 2002-11-18 주식회사 포스코 An electic plating apparatus, and a method for eliminating band mark on strip using it

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4329402A (en) * 1978-09-27 1982-05-11 Whyco Chromium Co., Inc. Micro-throwing alloy undercoatings and method for improving corrosion resistance
JPS6056090A (en) * 1983-09-07 1985-04-01 Kobe Steel Ltd Steel sheet having superior resistance to stripping of paint film
JPH02145778A (en) * 1988-11-28 1990-06-05 Kobe Steel Ltd Zn-fe flash plating method for alloyed hot dip galvanized steel sheet

Also Published As

Publication number Publication date
DE69107270T2 (en) 1995-07-13
EP0480355B1 (en) 1995-02-08
KR920008223A (en) 1992-05-27
JPH04147992A (en) 1992-05-21
EP0480355A2 (en) 1992-04-15
EP0480355A3 (en) 1992-09-02
CA2052112C (en) 1997-09-09
DE69107270D1 (en) 1995-03-23
JP2536271B2 (en) 1996-09-18

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed