GB938724A - Improvements in or relating to the application of chemical conversion coatings to metal surfaces - Google Patents

Improvements in or relating to the application of chemical conversion coatings to metal surfaces

Info

Publication number
GB938724A
GB938724A GB24738/62A GB2473862A GB938724A GB 938724 A GB938724 A GB 938724A GB 24738/62 A GB24738/62 A GB 24738/62A GB 2473862 A GB2473862 A GB 2473862A GB 938724 A GB938724 A GB 938724A
Authority
GB
United Kingdom
Prior art keywords
coating
rollers
metal
roller
strip
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
GB24738/62A
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.)
Amchem SA
Original Assignee
Amchem SA
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 SA filed Critical Amchem SA
Publication of GB938724A publication Critical patent/GB938724A/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
    • C23C22/73—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 characterised by the process

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)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Coating Apparatus (AREA)

Abstract

938,724. Modifying metallic surfaces; phosphating, AMCHEM S.A. June 27, 1962 [Aug. 9, 1961], No. 24738/62. Class 82. Chemical conversion coating solutions are applied to metal surfaces by coating rollers wetted with the coating solution, said rollers being rotated in contact with the metal surface such that there is opposed relative motion between the surfaces of the rollers and the surface of the metal. The metal surface, in strip form, is moved past fixed contra-rotating rollers as shown in the roller-coating apparatus, where strip 10 is moved forward past rotatable coating roller 12 positively driven in the reverse direction and wetted by driving contact with transfer roller 14 and pick-up roller 16 which is partially submerged in conversion coating solution contained in reservoir 18. Additionally or alternatively the other side of metal strip 10 may be coated by reversely driven coating roller 20 in driving contact with pick-up roller 22 partially submerged in coating solution contained in reservoir 24. After coating the metal strip passes through squeegee rollers 30, 32 to remove excess coating solution. Chemical conversion coatings, such as phosphate or oxalate coatings, may be applied to the surfaces of any metal, including iron, steel, zinc, cadmium and magnesium; but the invention is especially applicable to the chromate coating of aluminium or aluminium alloy. The rollers may be made from synthetic resins and the natural and synthetic rubbers in order that the surface durometer hardness may vary between 30 to 90 and preferably 40-60. Optimum efficiency is achieved when the reverse tangential speed of the coating rollers is about 50% or more of the forward linear speed of the metal strip. Specifications 735,819 and 893,771 are referred to.
GB24738/62A 1961-08-09 1962-06-27 Improvements in or relating to the application of chemical conversion coatings to metal surfaces Expired GB938724A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US130398A US3098775A (en) 1961-08-09 1961-08-09 Method of applying a chromate conversion coating to the surface of aluminum

Publications (1)

Publication Number Publication Date
GB938724A true GB938724A (en) 1963-10-02

Family

ID=22444517

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24738/62A Expired GB938724A (en) 1961-08-09 1962-06-27 Improvements in or relating to the application of chemical conversion coatings to metal surfaces

Country Status (4)

Country Link
US (1) US3098775A (en)
DE (1) DE1290786B (en)
GB (1) GB938724A (en)
SE (1) SE307718B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215564A (en) * 1963-01-11 1965-11-02 Amchem Prod Method of applying chemical conversion coatings to metal surfaces
US3755018A (en) * 1971-04-26 1973-08-28 Eltzroth & Ass J M Composition and process for inhibiting corrosion of non-ferrous metal surfaced articles and providing receptive surface for synthetic resin coating compositions
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
DE2834184A1 (en) * 1978-08-04 1980-02-21 Hpw Herzberger Plattenwerke Pigmenting copper foil on laminated board - by partial and complete application of hepar sulphuris soln.
US5730809A (en) * 1994-11-09 1998-03-24 Enthone-Omi, Inc. Passivate for tungsten alloy electroplating

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1193816A (en) * 1959-11-05
US1539993A (en) * 1923-08-22 1925-06-02 Lehmaier Schwartz & Co Inc Impression metal
US2199228A (en) * 1936-07-16 1940-04-30 West Virginia Pulp & Paper Co Method of and apparatus for coating paper
US2348698A (en) * 1940-08-03 1944-05-09 Parker Rust Proof Co Method of roller coating
BE538540A (en) * 1954-08-05
US2933417A (en) * 1958-03-12 1960-04-19 Du Pont One-side film coating process

Also Published As

Publication number Publication date
SE307718B (en) 1969-01-13
US3098775A (en) 1963-07-23
DE1290786B (en) 1969-03-13

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