GB872474A - Rustproofing metals and products thereof - Google Patents

Rustproofing metals and products thereof

Info

Publication number
GB872474A
GB872474A GB853058A GB853058A GB872474A GB 872474 A GB872474 A GB 872474A GB 853058 A GB853058 A GB 853058A GB 853058 A GB853058 A GB 853058A GB 872474 A GB872474 A GB 872474A
Authority
GB
United Kingdom
Prior art keywords
metal
corrosion
compound
heated
resistant
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
GB853058A
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.)
Union Carbide Corp
Original Assignee
Union Carbide 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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB872474A publication Critical patent/GB872474A/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
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/02—Pretreatment of the material to be coated
    • C23C16/0209—Pretreatment of the material to be coated by heating
    • 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
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/06—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material

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 Vapour Deposition (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • ing And Chemical Polishing (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

In a method of treating a metal (e.g. iron) which is susceptible to corrosion to render it corrosion resistant, the metal is heated and vibrated to remove occluded gases from its pores and interstices, the thus heated metal is subjected to a gaseous heat-decomposable metal compound at a temperature below the decomposition temperature of said compound to impregnate said pores and interstices with the compound, the metal component of said compound having a greater resistance to corrosion than the metal being treated, and the resultant gas-impregnated metal is heated to cause decomposition of the compound and deposition of the corrosion-resistant metal in said pores and interstices. The metal is preferably subjected to sub-atmospheric pressure while it is being heated and vibrated. Vibration may be effected mechanically or by using pulsating electromagnets. The temperature of the base metal may be increased after deposition of the corrosion-resistant metal to accelerate diffusion of the latter. Suitable corrosion-resistant metals are chromium, copper, nickel, titanium, zinc and zirconium. They may be deposited from such compounds as carbonyls, nitrocyl carbonyls, carbonyl halides, hydrides, nitrides, nitroxyls, alkyls and halides. The compounds may be entrained in a carrier gas such as carbon dioxide, helium, nitrogen or hydrogen.
GB853058A 1957-07-01 1958-03-17 Rustproofing metals and products thereof Expired GB872474A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66887057A 1957-07-01 1957-07-01

Publications (1)

Publication Number Publication Date
GB872474A true GB872474A (en) 1961-07-12

Family

ID=24684072

Family Applications (1)

Application Number Title Priority Date Filing Date
GB853058A Expired GB872474A (en) 1957-07-01 1958-03-17 Rustproofing metals and products thereof

Country Status (5)

Country Link
CH (1) CH387409A (en)
DE (1) DE1253990B (en)
FR (1) FR1207584A (en)
GB (1) GB872474A (en)
NL (1) NL103888C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0621348B2 (en) * 1986-07-22 1994-03-23 日新製鋼株式会社 Alloyed zinc plated steel sheet and its manufacturing method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653879A (en) * 1949-04-06 1953-09-29 Ohio Commw Eng Co Bonding of metal carbonyl deposits
US2704728A (en) * 1951-10-08 1955-03-22 Ohio Commw Eng Co Gas plating metal objects with copper acetylacetonate
GB758924A (en) * 1953-07-06 1956-10-10 Ohio Commw Eng Co Improvements in or relating to coating metallic bases with metals by the decomposition of gaseous metallic compounds

Also Published As

Publication number Publication date
CH387409A (en) 1965-01-31
FR1207584A (en) 1960-02-17
DE1253990B (en) 1967-11-09
NL103888C (en)

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