GB768324A - Improvements in the formation of coatings on ferrous surfaces - Google Patents

Improvements in the formation of coatings on ferrous surfaces

Info

Publication number
GB768324A
GB768324A GB1170555A GB1170555A GB768324A GB 768324 A GB768324 A GB 768324A GB 1170555 A GB1170555 A GB 1170555A GB 1170555 A GB1170555 A GB 1170555A GB 768324 A GB768324 A GB 768324A
Authority
GB
United Kingdom
Prior art keywords
cold
lubricants
coating
working
oxidation
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
GB1170555A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1170555A priority Critical patent/GB768324A/en
Publication of GB768324A publication Critical patent/GB768324A/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
    • C23C22/68—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 solutions with pH between 6 and 8

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 ferrous surface is provided with a tightly adherent coating, which is of particular value in facilitating the cold-working of steel, by treatment with an aqueous solution of an ammonium salt of a reducing oxygen-containing acid of sulphur, e.g. ammonium sulphite, thiosulphate or polythionates. The surfaces are preferably degreased, e.g. with a fatty alcohol sulphonate, before treatment. Oxidation of the coating may be prevented by storing the coated articles in dry air or dipping them into the lubricants used for a subsequent cold-working operation, to which lubricants may be added a thickening agent, e.g. methyl cellulose or cellulose glycolate, and chemicals which prevent oxidation, e.g. hydroquinone.
GB1170555A 1955-04-22 1955-04-22 Improvements in the formation of coatings on ferrous surfaces Expired GB768324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1170555A GB768324A (en) 1955-04-22 1955-04-22 Improvements in the formation of coatings on ferrous surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1170555A GB768324A (en) 1955-04-22 1955-04-22 Improvements in the formation of coatings on ferrous surfaces

Publications (1)

Publication Number Publication Date
GB768324A true GB768324A (en) 1957-02-13

Family

ID=9991180

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1170555A Expired GB768324A (en) 1955-04-22 1955-04-22 Improvements in the formation of coatings on ferrous surfaces

Country Status (1)

Country Link
GB (1) GB768324A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8372773B2 (en) 2009-03-27 2013-02-12 Uop Llc Hydrocarbon conversion system, and a process and catalyst composition relating thereto

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8372773B2 (en) 2009-03-27 2013-02-12 Uop Llc Hydrocarbon conversion system, and a process and catalyst composition relating thereto

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