GB741128A - Improvements relating to the production of coatings on steel - Google Patents

Improvements relating to the production of coatings on steel

Info

Publication number
GB741128A
GB741128A GB1131552A GB1131552A GB741128A GB 741128 A GB741128 A GB 741128A GB 1131552 A GB1131552 A GB 1131552A GB 1131552 A GB1131552 A GB 1131552A GB 741128 A GB741128 A GB 741128A
Authority
GB
United Kingdom
Prior art keywords
coatings
steel
production
improvements relating
sulphuric
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
GB1131552A
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.)
Pyrene Co Ltd
Original Assignee
Pyrene Co Ltd
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 Pyrene Co Ltd filed Critical Pyrene Co Ltd
Priority to GB1131552A priority Critical patent/GB741128A/en
Publication of GB741128A publication Critical patent/GB741128A/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
    • C23C22/48—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 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
    • C23C22/50—Treatment of iron or alloys based thereon

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)

Abstract

A continuous, closely adherent, sulphide coating is formed on a chromium-containing steel surface by treating the surface with an aqueous solution of pH not exceeding 1.1 and containing a sulphite and chloride, bromide, iodide or thiocyanate ions or a mixture of such ions. The solution may be given the desired pH by the use of hydrochloric, sulphuric, nitric, phosphoric or oxalic acids; the use of benzene sulphuric and trichloracetic acids is also referred to. The coated sheet may be subjected to plastic deformation.
GB1131552A 1952-05-05 1952-05-05 Improvements relating to the production of coatings on steel Expired GB741128A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1131552A GB741128A (en) 1952-05-05 1952-05-05 Improvements relating to the production of coatings on steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1131552A GB741128A (en) 1952-05-05 1952-05-05 Improvements relating to the production of coatings on steel

Publications (1)

Publication Number Publication Date
GB741128A true GB741128A (en) 1955-11-30

Family

ID=9984006

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1131552A Expired GB741128A (en) 1952-05-05 1952-05-05 Improvements relating to the production of coatings on steel

Country Status (1)

Country Link
GB (1) GB741128A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2834691A (en) * 1956-10-09 1958-05-13 Gen Electric Process for preparing a metal surface for coating and product thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2834691A (en) * 1956-10-09 1958-05-13 Gen Electric Process for preparing a metal surface for coating and product thereof

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