GB764385A - Process for treating steel, zinc and aluminium to increase corrosion resistance - Google Patents

Process for treating steel, zinc and aluminium to increase corrosion resistance

Info

Publication number
GB764385A
GB764385A GB5757/55A GB575755A GB764385A GB 764385 A GB764385 A GB 764385A GB 5757/55 A GB5757/55 A GB 5757/55A GB 575755 A GB575755 A GB 575755A GB 764385 A GB764385 A GB 764385A
Authority
GB
United Kingdom
Prior art keywords
acid
zinc
aluminium
solution
corrosion resistance
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
GB5757/55A
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.)
Henkel Corp
Original Assignee
Amchem Products Inc
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 Amchem Products Inc filed Critical Amchem Products Inc
Publication of GB764385A publication Critical patent/GB764385A/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
    • C23C22/82—After-treatment
    • C23C22/83—Chemical after-treatment

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

A process for increasing the corrosion resistance of surfaces of steel, zinc, zinc alloys, aluminium and aluminium alloys comprises subjecting the surface of any of these metals separately or present together to the action of a phosphating solution which is capable of producing a chemically bonded crystalline phosphate coating on steel and zinc, rinsing with water the surface so treated, and then subjecting the rinsed surface to the action of a solution of chromic acid and complex fluorides selected from fluosilicic acid, fluoboric acid, fluozirconic acid, fluostannic acid, fluotitanic acid and the soluble salts of any of these, the chromic acid concentration lying between 0.30 and 10 grams per litre the fluorine content between 0.10 and 10 grams per litre and the pH of the solution lying between 1.3 and 4.0. The preferred complex fluorides are those of zirconium and titanium and the process is stated to produce surfaces which are well adapted to receive a final siccative coating of paint, lacquer or japan. Specifications 493,365, 501,739, 550,751, 554,654 and 645,157 are referred to.
GB5757/55A 1954-04-14 1955-02-25 Process for treating steel, zinc and aluminium to increase corrosion resistance Expired GB764385A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US423250A US2795518A (en) 1954-04-14 1954-04-14 Process for treating steel, zinc, and aluminum to increase corrosion resistance

Publications (1)

Publication Number Publication Date
GB764385A true GB764385A (en) 1956-12-28

Family

ID=23678187

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5757/55A Expired GB764385A (en) 1954-04-14 1955-02-25 Process for treating steel, zinc and aluminium to increase corrosion resistance

Country Status (3)

Country Link
US (1) US2795518A (en)
DE (1) DE1064780B (en)
GB (1) GB764385A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4148670A (en) * 1976-04-05 1979-04-10 Amchem Products, Inc. Coating solution for metal surface

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3113051A (en) * 1961-09-29 1963-12-03 Purex Corp Ltd Process and composition for producing aluminum surface conversion coatings
NL6909307A (en) * 1969-06-18 1970-12-22
US3895969A (en) * 1971-04-26 1975-07-22 J M Eltzroth And Associates In Composition and process for inhibiting corrosion of non-ferrous metal surfaced articles and providing surface for synthetic resin coating compositions
US3895970A (en) * 1973-06-11 1975-07-22 Pennwalt Corp Sealing rinse for phosphate coatings of metal

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563430A (en) * 1951-08-07 Method op improving the resistance
US2276353A (en) * 1935-09-28 1942-03-17 Parker Rust Proof Co Process of coating
DE675334C (en) * 1937-11-13 1939-05-06 Metallgesellschaft Akt Ges Process to increase the adhesive strength of coatings on iron and steel
US2471909A (en) * 1946-03-09 1949-05-31 American Chem Paint Co Method and materials for producing coated aluminum
GB655079A (en) * 1946-09-11 1951-07-11 Pyrene Co Ltd Improvements in or relating to the production of phosphate coatings
US2516008A (en) * 1948-06-19 1950-07-18 Westinghouse Electric Corp Composition and process for treating metal surfaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4148670A (en) * 1976-04-05 1979-04-10 Amchem Products, Inc. Coating solution for metal surface

Also Published As

Publication number Publication date
DE1064780B (en) 1959-09-03
US2795518A (en) 1957-06-11

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