EP0693139A4 - - Google Patents

Info

Publication number
EP0693139A4
EP0693139A4 EP94913306A EP94913306A EP0693139A4 EP 0693139 A4 EP0693139 A4 EP 0693139A4 EP 94913306 A EP94913306 A EP 94913306A EP 94913306 A EP94913306 A EP 94913306A EP 0693139 A4 EP0693139 A4 EP 0693139A4
Authority
EP
European Patent Office
Prior art keywords
acid
zinciferous
heavy metal
sheet
treatment
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
EP94913306A
Other languages
English (en)
Other versions
EP0693139A1 (fr
EP0693139B1 (fr
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 filed Critical
Publication of EP0693139A1 publication Critical patent/EP0693139A1/fr
Publication of EP0693139A4 publication Critical patent/EP0693139A4/en
Application granted granted Critical
Publication of EP0693139B1 publication Critical patent/EP0693139B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
    • 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

Definitions

  • the present invention relates to an acidic substitutional plating bath compo ⁇ sition, also called a "bath" herein for brevity, for application to zinciferous surfaces, particularly to steel sheet plated with zinc-containing metal (hereinafter referred to as zinciferous metal-plated steel sheet), and to processes for using such a compo ⁇ sition to treat metals. More specifically, the present invention relates to an acidic substitutional plating bath composition that can be continuously employed for long periods of time while maintaining its initial performance and that, upon contact with the surface of zinciferous metal-plated steel sheet, forms thereon a heavy metal film that contributes to the formation of a paint undercoat that is very strongly ad ⁇ herent for paint films. This acidic substitutional plating bath composition can also improve the black rust resistance of the unpainted sheet.
  • Japanese Patent Application Laid Open Number Sho 61-69978 concerns a method in with low-lead hot-dip galvanized steel sheet is treated with an aqueous alkaline solution that contains Fe, Co, and/or Ni or with an aqueous hydrochloric acid solution, aqueous sulfuric acid solution, or aqueous phosphoric acid solution that contains Fe, Co, and/or Ni.
  • aqueous hydro ⁇ chloric acid solution, aqueous sulfuric acid solution, and aqueous alkaline solution deposition of these metals is impaired by the increase in Zn ion and increase in pH that occur with elapsed treatment time.
  • the plating bath should contain said heavy metal ion(s) at 1.5 to 40 g/L cal ⁇ culated as metal atoms. Metal deposition is inadequate at below 1.5 g/L and a satisfactory effect is therefore not obtained. At above 40 g/L, on the other hand, 5 metal deposition is saturated and the economic losses due to bath carry-out be ⁇ come large.
  • Orthophosphoric acid is preferably used as the source for the phosphate ion used by the present invention.
  • the content of phosphoric acid in the plating bath should be 0.5 to 10 g/L as phosphate ion.
  • the use of less than 0.5 g/L will o result in a sharp increase in bath pH, which influences the component balance.
  • the pH buffering activity is substantially saturated at above 10 g/L, while the amount of zinc etching is increased, with a corresponding decline in deposition ef ⁇ ficiency.
  • the organic acid used by the present invention comprises at least one se ⁇ lection from glycolic acid, lactic acid, malic acid, tartaric acid, citric acid, gluconic acid, and ascorbic acid.
  • the organic acid is citric or malic acid.
  • the organic acid concentration should be 1 to 20 g/L. Both the ability to capture eluted 5 zinc and the pH buffering capacity are inadequate when the organic acid concen ⁇ tration is less than 1 g/L. On the other hand, the effect becomes saturated when the organic acid concentration exceeds 20 g/L, and these high concentrations also impair the heavy metal deposition efficiency.
  • test sheets as re ⁇ ported in (1) below were subjected to substitutional plating treatments using the treatment bath compositions reported in Table 3.
  • the substitutionally plated test 5 sheets and test sheet without substitutional plating (Comparison Example 8) were then cleaned, dried, chromated, and painted in this sequence as described in (3) through (6) below.
  • Comparison Example 7 the test sheet was treated with zinc phosphate and then painted. The painted test sheets were subsequently submit ⁇ ted to flexural testing and edge creepage testing as described in (7) and (8) below.
  • Edge creepage test on the painted sheet 70 x 150 mm coupons were cut from the test sheets in such a way that fins projected out at the top and bottom on both ends. After 1000 hours of salt-spray testing in accordance with JIS Z 2371 , the maximum creepage widths (mm) from the edges were measured on both sides. The average value is reported.
  • test sheets as re ⁇ ported in (1) below were subjected to substitutional plating treatments using the treatment bath compositions reported in Table 5.
  • the substitutionally plated test sheets and test sheet without substitutional plating (Comparison Example 11 ) were then degreased, cleaned, dried, chromated, and painted in this sequence as de ⁇ scribed in (2) through (9) below.
  • the thus-treated test sheets were subsequently submitted to adherence testing on the painted sheet and corrosion resistance test- ing on the painted sheet as described in (10) and (11) below.
  • Table 6 reports the following values: the substitutional plating conditions, the presence/absence of sludge production and the amount of zinc ion in the bath for treatment bath into Table 5

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Chemically Coating (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Electroplating Methods And Accessories (AREA)
EP94913306A 1993-04-07 1994-03-28 Composition et procede de substitution pour le placage de surfaces de zinc ou d'alliages de zinc Expired - Lifetime EP0693139B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP80883/93 1993-04-07
JP5080883A JP2968147B2 (ja) 1993-04-07 1993-04-07 亜鉛含有金属めっき鋼板用酸性置換めっき液組成物
PCT/US1994/003225 WO1994023089A1 (fr) 1993-04-07 1994-03-28 Composition et procede de substitution pour le placage de surfaces zinciferes

Publications (3)

Publication Number Publication Date
EP0693139A1 EP0693139A1 (fr) 1996-01-24
EP0693139A4 true EP0693139A4 (fr) 1996-02-07
EP0693139B1 EP0693139B1 (fr) 1998-07-22

Family

ID=13730748

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94913306A Expired - Lifetime EP0693139B1 (fr) 1993-04-07 1994-03-28 Composition et procede de substitution pour le placage de surfaces de zinc ou d'alliages de zinc

Country Status (8)

Country Link
EP (1) EP0693139B1 (fr)
JP (1) JP2968147B2 (fr)
CN (1) CN1065574C (fr)
AT (1) ATE168728T1 (fr)
CA (1) CA2158856A1 (fr)
DE (1) DE69411902T2 (fr)
TW (1) TW301675B (fr)
WO (1) WO1994023089A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5463609B2 (ja) * 2005-03-31 2014-04-09 Ｊｆｅスチール株式会社 クロムフリー表面処理亜鉛系めっき鋼板およびその製造方法ならびに表面処理液
JP2007023353A (ja) * 2005-07-19 2007-02-01 Yuken Industry Co Ltd 亜鉛系めっき部材のノンクロム反応型化成処理
DE102006051384A1 (de) * 2006-10-27 2008-04-30 Seppeler Holding Und Verwaltungs Gmbh & Co. Kg Verfahren zur Vorbewitterung von Metallteilen mit einer vorwiegend aus Zink bestehenden Oberfläche
DE102007021364A1 (de) * 2007-05-04 2008-11-06 Henkel Ag & Co. Kgaa Metallisierende Vorbehandlung von Zinkoberflächen
CN101311308B (zh) * 2007-05-24 2011-04-27 西北工业大学 玻璃纤维表面化学镀五元合金镀液及其制备方法
TWI482879B (zh) * 2010-09-15 2015-05-01 Jfe Steel Corp 容器用鋼板及其製造方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3515600A (en) * 1966-10-19 1970-06-02 Hooker Chemical Corp Metal treating process and composition
JPS5222618B2 (fr) * 1972-11-06 1977-06-18
DE2543523A1 (de) * 1975-09-30 1977-04-07 Metallgesellschaft Ag Staubschleuse
FR2531103B1 (fr) * 1982-07-30 1985-11-22 Onera (Off Nat Aerospatiale) Bain pour le depot chimique de nickel et/ou de cobalt utilisant un reducteur a base de bore ou de phosphore
JPS60248882A (ja) * 1984-05-24 1985-12-09 Aisin Seiki Co Ltd 高リン含有ニツケル合金の無電解めつき浴
FR2569203B1 (fr) * 1984-08-16 1989-12-22 Produits Ind Cie Fse Procede de traitement par conversion chimique de substrats en zinc ou en l'un de ses alliages, concentre et bain utilises pour la mise en oeuvre de ce procede
JPS6169978A (ja) * 1984-09-12 1986-04-10 Nisshin Steel Co Ltd 低鉛溶融亜鉛めつき鋼板の塗装前処理方法
GB8507181D0 (en) * 1985-03-20 1985-04-24 Omi International Benelux Bv Passivation
JPH0696773B2 (ja) * 1989-06-15 1994-11-30 日本ペイント株式会社 金属表面のリン酸亜鉛皮膜形成方法
FR2654440B1 (fr) * 1989-11-16 1993-07-30 Produits Ind Cie Fse Procede de conversion chimique de substrats metalliques, bain mis en óoeuvre dans ce procede et concentre pour la preparation du bain.
JP2586688B2 (ja) * 1990-05-07 1997-03-05 上村工業株式会社 ガラス―金属複合物の電気めっき方法
US5258061A (en) * 1992-11-20 1993-11-02 Monsanto Company Electroless nickel plating baths

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *

Also Published As

Publication number Publication date
CN1065574C (zh) 2001-05-09
EP0693139A1 (fr) 1996-01-24
DE69411902D1 (de) 1998-08-27
CN1093415A (zh) 1994-10-12
WO1994023089A1 (fr) 1994-10-13
DE69411902T2 (de) 1999-04-08
TW301675B (fr) 1997-04-01
CA2158856A1 (fr) 1994-10-13
JP2968147B2 (ja) 1999-10-25
JPH06293973A (ja) 1994-10-21
EP0693139B1 (fr) 1998-07-22
ATE168728T1 (de) 1998-08-15

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