GB1193460A - Improvements in the Production of Protective Layers on Metal Surfaces - Google Patents

Improvements in the Production of Protective Layers on Metal Surfaces

Info

Publication number
GB1193460A
GB1193460A GB55391/67A GB5539167A GB1193460A GB 1193460 A GB1193460 A GB 1193460A GB 55391/67 A GB55391/67 A GB 55391/67A GB 5539167 A GB5539167 A GB 5539167A GB 1193460 A GB1193460 A GB 1193460A
Authority
GB
United Kingdom
Prior art keywords
acid
added
nitrate
ions
solution
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
GB55391/67A
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.)
Gerhard Collardin GmbH
Original Assignee
Gerhard Collardin GmbH
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 Gerhard Collardin GmbH filed Critical Gerhard Collardin GmbH
Publication of GB1193460A publication Critical patent/GB1193460A/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
    • C23C22/34—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 fluorides or complex fluorides

Abstract

1,193,460. Modifying metallic surfaces. GERHARD COLLARDIN G.m.b.H. Dec. 6, 1967 [Feb. 16, 1967], No. 55391/67. Heading C7U. Zinc, iron or galvanized surfaces are coated by treating with a solution free from chromic acid, phosphoric acid and oxalic acid and which contains 0À1 to 2 g/l based on the metal of one or more complex flourides of Fe, Ti, Zr, or Si, 0À3 to 10 g/l of nitrate ions or a corresponding amount of another oxidizing agent with a pH of 1À8 to 3À5 at a temperature of 5 to 95‹ C. for 3 to 45 seconds. The metal ions are added to the solution in the form of their soluble salts while in the case of Ti, Zr and Si they may be added as the corresponding fluoride complex. The fluoride ions are added as HF or its salts. The oxidizing agents are: nitrate, nitrite, chlorate, bromate, hydrogen peroxide, aliphatic and aromatic nitro and nitroso compounds e.g. nitroguanidine, picric acid, nitrophenals, mono and di-nitrobenzylsulphonic acid. The simplest solution used is one of ferric nitrate and hydrofluoric acid. The coated surface may be passicated with solutions containing 0À01 to 5 g/l of chromic acid and/or phosphoric acid.
GB55391/67A 1967-02-16 1967-12-06 Improvements in the Production of Protective Layers on Metal Surfaces Expired GB1193460A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC0041515 1967-02-16

Publications (1)

Publication Number Publication Date
GB1193460A true GB1193460A (en) 1970-06-03

Family

ID=7024594

Family Applications (1)

Application Number Title Priority Date Filing Date
GB55391/67A Expired GB1193460A (en) 1967-02-16 1967-12-06 Improvements in the Production of Protective Layers on Metal Surfaces

Country Status (5)

Country Link
US (1) US3539402A (en)
BE (1) BE710840A (en)
ES (1) ES350547A1 (en)
FR (1) FR1554415A (en)
GB (1) GB1193460A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2158845A (en) * 1984-05-18 1985-11-20 Parker Chemical Co Composition and process for treatment of ferrous substrates
GB2259920A (en) * 1991-09-10 1993-03-31 Gibson Chem Ltd Surface conversion coating solution based on molybdenum and phosphate compounds

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2031358C3 (en) * 1970-06-25 1981-10-15 Gerhard Collardin GmbH, 5000 Köln Process for the production of protective layers on aluminum, iron and zinc by means of acidic solutions containing complex fluorides
US3850732A (en) * 1970-12-02 1974-11-26 Amchem Prod Zirconium rinse for phosphate coated metal surfaces
US3966502A (en) * 1972-08-17 1976-06-29 Amchem Products, Inc. Zirconium rinse for phosphate coated metal surfaces
US4298404A (en) * 1979-09-06 1981-11-03 Richardson Chemical Company Chromium-free or low-chromium metal surface passivation
US5344504A (en) * 1993-06-22 1994-09-06 Betz Laboratories, Inc. Treatment for galvanized metal
US8673091B2 (en) * 2007-08-03 2014-03-18 Ppg Industries Ohio, Inc Pretreatment compositions and methods for coating a metal substrate
US9574093B2 (en) * 2007-09-28 2017-02-21 Ppg Industries Ohio, Inc. Methods for coating a metal substrate and related coated metal substrates
US8282801B2 (en) * 2008-12-18 2012-10-09 Ppg Industries Ohio, Inc. Methods for passivating a metal substrate and related coated metal substrates
US9273399B2 (en) 2013-03-15 2016-03-01 Ppg Industries Ohio, Inc. Pretreatment compositions and methods for coating a battery electrode

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2276353A (en) * 1935-09-28 1942-03-17 Parker Rust Proof Co Process of coating
US2357219A (en) * 1942-01-10 1944-08-29 Joseph P Moran Corrosion-resistant ferrous alloys
US3160506A (en) * 1962-10-19 1964-12-08 Polychrome Corp Planographic printing plate and method for preparing same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2158845A (en) * 1984-05-18 1985-11-20 Parker Chemical Co Composition and process for treatment of ferrous substrates
GB2259920A (en) * 1991-09-10 1993-03-31 Gibson Chem Ltd Surface conversion coating solution based on molybdenum and phosphate compounds

Also Published As

Publication number Publication date
ES350547A1 (en) 1969-05-01
BE710840A (en) 1968-08-16
US3539402A (en) 1970-11-10
FR1554415A (en) 1969-01-17
DE1621432B2 (en) 1975-12-04
DE1621432A1 (en) 1970-03-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee