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ES341347A1 - Chromising of Ferrous Metal Substrates - Google Patents

Chromising of Ferrous Metal Substrates

Info

Publication number
ES341347A1
ES341347A1 ES341347A ES341347A ES341347A1 ES 341347 A1 ES341347 A1 ES 341347A1 ES 341347 A ES341347 A ES 341347A ES 341347 A ES341347 A ES 341347A ES 341347 A1 ES341347 A1 ES 341347A1
Authority
ES
Spain
Prior art keywords
chromising
ferrous metal
metal substrates
coating
layer
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
ES341347A
Other languages
Spanish (es)
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.)
Associated Chemical Companies Ltd
Original Assignee
Associated Chemical Companies 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 Associated Chemical Companies Ltd filed Critical Associated Chemical Companies Ltd
Publication of ES341347A1 publication Critical patent/ES341347A1/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
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
    • C23C10/30—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes using a layer of powder or paste on the surface
    • C23C10/32—Chromising
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/48—After-treatment of electroplated surfaces
    • C25D5/50—After-treatment of electroplated surfaces by heat-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Chemically Coating (AREA)
  • Hard Magnetic Materials (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

A ferrous article which is in contact with another ferrous article, e. g. the coils of a wire or a steel strip, is chromized by coating with an adhesent layer of Cr, which may contain anotner metal, e.g. Ni, by e.g. electrolysis, spraying or rolling a layer of powdered Cr, coating with a metal halide, e. g. Fe, Ni, Co or Mn, and then heating to at least 750 C. A first stage 350 to 700 C. is carried out in a purging gas, e. g. hydrogen, argon or helium. Ammonium chloride may be present with the metal halide.
ES341347A 1966-06-07 1967-06-03 Chromising of Ferrous Metal Substrates Expired ES341347A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB2541566 1966-06-07
GB06641/67A GB1184183A (en) 1966-06-07 1966-11-29 Chromising of Ferrous Metal Substrates
GB1244567 1967-03-16

Publications (1)

Publication Number Publication Date
ES341347A1 true ES341347A1 (en) 1968-10-16

Family

ID=27256841

Family Applications (1)

Application Number Title Priority Date Filing Date
ES341347A Expired ES341347A1 (en) 1966-06-07 1967-06-03 Chromising of Ferrous Metal Substrates

Country Status (9)

Country Link
AT (1) AT278468B (en)
BE (1) BE699465A (en)
ES (1) ES341347A1 (en)
FR (1) FR1525769A (en)
GB (1) GB1184183A (en)
LU (1) LU53813A1 (en)
NL (1) NL6707791A (en)
PL (1) PL79247B1 (en)
SE (1) SE333287B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1545584A (en) * 1975-03-07 1979-05-10 Onera (Off Nat Aerospatiale) Processes and systems for the formation of surface diffusion alloys on perforate metal workpieces
FR2429271A1 (en) * 1978-06-23 1980-01-18 Gen Electric Corrosion resistant coating for steel - obtd. by diffusing chromium into steel, and used esp. on sulphur containers in sodium-sulphur batteries

Also Published As

Publication number Publication date
SE333287B (en) 1971-03-08
NL6707791A (en) 1967-12-08
AT278468B (en) 1970-02-10
DE1621202B2 (en) 1972-07-27
FR1525769A (en) 1968-05-17
DE1621202A1 (en) 1971-05-19
GB1184183A (en) 1970-03-11
LU53813A1 (en) 1967-08-07
PL79247B1 (en) 1975-06-30
BE699465A (en) 1967-11-16

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