GB979755A - Improvements in or relating to a stainless steel member - Google Patents

Improvements in or relating to a stainless steel member

Info

Publication number
GB979755A
GB979755A GB2534462A GB2534462A GB979755A GB 979755 A GB979755 A GB 979755A GB 2534462 A GB2534462 A GB 2534462A GB 2534462 A GB2534462 A GB 2534462A GB 979755 A GB979755 A GB 979755A
Authority
GB
United Kingdom
Prior art keywords
silicate
stainless steel
metal oxide
coated
sodium
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
GB2534462A
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.)
Allegheny Ludlum Steel Corp
Original Assignee
Allegheny Ludlum Steel Corp
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 Allegheny Ludlum Steel Corp filed Critical Allegheny Ludlum Steel Corp
Publication of GB979755A publication Critical patent/GB979755A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C8/00Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/80After-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Panels For Use In Building Construction (AREA)
  • Laminated Bodies (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

Stainless steel surfaces (e.g. flat rolled strips or sheets or architectural members) having a metal oxide coating, are further coated with an alkali metal silicate by spraying, dipping, roller or flow coating. The metal oxide may be obtained by heating the stainless steel in air (e.g. 450 DEG F. and above), molten salts or solutions, or oil baths or by electrolytic treatment, e.g. in sodium hydroxide solutions as described in U.S.A. Specification 2,957,812 The thicknesses of the metal oxide and silicate coatings are between 100 and 1000 <\>rA and not greater than 0.001 inch respectively. The coatings may be baked. The silicate is applied in the form of an aqueous solution which solution may contain a wetting agent, e.g. diamyl sodium sulphosuccinate and sodium lauryl sulphate. The strips and sheets may be cold rolled, annealed, pickled and polished before being coated. In the examples, stainless steel panels are cleaned with alkaline cleaner, rinsed, heated at 1000 DEG F. and above, cooled, dipped in, sprayed with or roller- or flow-coated with, a sodium silicate solution and baked. Specification 974,886 is referred to.ALSO:Stainless steel surfaces (e.g. flat rolled strips or sheets or architectural members) having a metal oxide coating, are further coated with an alkali metal silicate by spraying, dipping, roller or flow coating. The metal oxide may be obtained by heating the stainless steel in air (e.g. 450 DEG F. and above), molten salts or solutions, or oil baths or by electrolytic treatment, e.g. in sodium hydroxide solutions as described in U.S.A. Specification 2,957,812. The thicknesses of the metal oxide and silicate coatings are between 100 and 1000 and not greater than 0,001 inch respectively. The coatings may be backed. The silicate is applied in the form of an aqueous solution which solution may contain a wetting agent, e.g. diamyl sodium sulphosuccinate and sodium lauryl sulphate. The strips and sheets may be cold rolled, annealed, pickled and polished before being coated. In the examples, stainless steel panels are cleaned with alkaline cleaner, rinsed, heated at 1000 DEG F. and above, cooled, dipped in, sprayed with or roller- or flow-coated with, a sodium silicate solution and baked. Specification 974,886 also is referred to.
GB2534462A 1961-07-03 1962-07-02 Improvements in or relating to a stainless steel member Expired GB979755A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12135361A 1961-07-03 1961-07-03

Publications (1)

Publication Number Publication Date
GB979755A true GB979755A (en) 1965-01-06

Family

ID=22396134

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2534462A Expired GB979755A (en) 1961-07-03 1962-07-02 Improvements in or relating to a stainless steel member

Country Status (5)

Country Link
BE (1) BE619691A (en)
CH (1) CH409575A (en)
DE (1) DE1446289B2 (en)
GB (1) GB979755A (en)
SE (1) SE303915B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134546A (en) * 1946-07-17 1984-08-15 Vni Instrument Inst Hardening cutting tools by deposition of wear resistant material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0280886B1 (en) 1987-02-02 1992-05-13 AHC-Oberflächentechnik Friebe &amp; Reininghaus GmbH Process for the production of decorative coatings on metals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134546A (en) * 1946-07-17 1984-08-15 Vni Instrument Inst Hardening cutting tools by deposition of wear resistant material

Also Published As

Publication number Publication date
BE619691A (en) 1963-01-03
SE303915B (en) 1968-09-09
CH409575A (en) 1966-03-15
DE1446289B2 (en) 1971-11-18
DE1446289A1 (en) 1969-03-20

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