GB810546A - Treatment bath and process for treating metal surfaces - Google Patents

Treatment bath and process for treating metal surfaces

Info

Publication number
GB810546A
GB810546A GB8030/55A GB803055A GB810546A GB 810546 A GB810546 A GB 810546A GB 8030/55 A GB8030/55 A GB 8030/55A GB 803055 A GB803055 A GB 803055A GB 810546 A GB810546 A GB 810546A
Authority
GB
United Kingdom
Prior art keywords
per cent
range
ions
oxalate
alkali metal
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.)
Expired
Application number
GB8030/55A
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst AG
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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB810546A publication Critical patent/GB810546A/en
Expired 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
    • 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
    • C23C22/46—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 oxalates
    • C23C22/47—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 oxalates containing also phosphates
    • 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
    • C23C22/46—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 oxalates

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)

Abstract

An aqueous solution for producing coatings on metal surfaces has a pH of 1-2.4 and contains oxalate ions and one or more soluble organic compounds with <FORM:0810546/II/1> groups. The oxalate ions may be introduced as oxalic acid, alkali metal oxalate or ferric oxalate; and the organic compound may be thiourea a xanthate or a dithiophosphoric acid ester of the aliphatic or aromatic series, and may be introduced as the alkali metal compound. The following ingredients may also be present: PO4 ions, added as phosphoric acid or iron or manganese phosphate; ions of trivalent iron or of manganese, added as FeCl3, Fe2 (SO4)3, NH4Fe (SO4)2, MnO, MnCO3 or MnSO4; and an accelerator, e.g. sodium sulphite, sodium bisulphite, or alkali metal-thiosulphate, -hydrosulphite, or -thiocyanate. The coating facilitates the subsequent cold-working, e.g. drawing, of the metal. Metals which may be coated include copper, zinc, nickel, chromium, aluminium, iron and steel; stainless steel compositions are given containing C in the range 0.05-0.12 per cent, Si in the range 0.31-0.53 per cent, Cr in the range 17.98-18.2 per cent and, in certain cases, Ni in the range 8-18 per cent, Mo in the range 1.8-2.01 per cent, Nb 0.1 and 0.9 per cent, Cu 1.9 per cent, and Ta 0.2 per cent. Specification 522,954 is referred to.
GB8030/55A 1949-12-12 1955-03-18 Treatment bath and process for treating metal surfaces Expired GB810546A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2832707X 1949-12-12
DE335916X 1954-03-18

Publications (1)

Publication Number Publication Date
GB810546A true GB810546A (en) 1959-03-18

Family

ID=32327359

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8030/55A Expired GB810546A (en) 1949-12-12 1955-03-18 Treatment bath and process for treating metal surfaces

Country Status (6)

Country Link
US (1) US2832707A (en)
BE (1) BE536618A (en)
CH (1) CH335916A (en)
FR (1) FR1120983A (en)
GB (1) GB810546A (en)
NL (1) NL105857C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121033A (en) * 1962-01-17 1964-02-11 Detrex Chem Ind Composition and method for coating stainless metal articles

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3450577A (en) * 1965-11-05 1969-06-17 Hooker Chemical Corp Composition and process for cleaning and coating metal surfaces
US4906327A (en) * 1989-05-04 1990-03-06 Rem Chemicals, Inc. Method and composition for refinement of metal surfaces
USRE34272E (en) * 1989-05-04 1993-06-08 Rem Chemicals, Inc. Method and composition for refinement of metal surfaces

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1315017A (en) * 1919-09-02 Jambs h
BE393417A (en) * 1932-02-09
US2236549A (en) * 1937-06-11 1941-04-01 Parker Rust Proof Co Method of coloring metals and product
BE434557A (en) * 1938-05-27
US2318642A (en) * 1941-04-25 1943-05-11 Parker Rust Proof Co Coated metal article and method of making same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121033A (en) * 1962-01-17 1964-02-11 Detrex Chem Ind Composition and method for coating stainless metal articles

Also Published As

Publication number Publication date
NL105857C (en)
BE536618A (en)
FR1120983A (en) 1956-07-18
US2832707A (en) 1958-04-29
CH335916A (en) 1959-01-31

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