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GB1413857A - Method of forming chromium carbide layers - Google Patents

Method of forming chromium carbide layers

Info

Publication number
GB1413857A
GB1413857A GB5136873A GB5136873A GB1413857A GB 1413857 A GB1413857 A GB 1413857A GB 5136873 A GB5136873 A GB 5136873A GB 5136873 A GB5136873 A GB 5136873A GB 1413857 A GB1413857 A GB 1413857A
Authority
GB
United Kingdom
Prior art keywords
bath
carbide
chromium
dissolves
nov
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
GB5136873A
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.)
Toyota Central R&D Labs Inc
Original Assignee
Toyota Central R&D Labs Inc
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
Priority claimed from JP47114288A external-priority patent/JPS5123377B2/ja
Priority claimed from JP4082373A external-priority patent/JPS519692B2/ja
Application filed by Toyota Central R&D Labs Inc filed Critical Toyota Central R&D Labs Inc
Publication of GB1413857A publication Critical patent/GB1413857A/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
    • C23C10/18—Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions
    • C23C10/20—Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions only one element being diffused
    • C23C10/24—Salt bath containing the element to be diffused
    • 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
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/005—Structure and composition of sealing elements such as sealing strips, sealing rings and the like; Coating of these elements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

1413857 Chromium carbide layers; forming Cr carbide electrolytically TOYOTA CHUO KENKYUSHO KK 6 Nov 1973 [16 Nov 1972 12 April 1973] 51368/73 Headings C7B and C7F Boric oxide and/or a borate is heated to form a molten bath, a metal block containing Cr is dipped therein and made anodic so that it dissolves, and an iron, Fe alloy, or cemented carbide article containing at least 0.06%C is immersed in the bath, to receive a chromium carbide coating. The bath may contain B 2 O 3 , Na 2 B 4 O 7 , or K 2 B 4 O 7 , and its viscosity may be reduced by addition of NaCl, KCl, NaF, P oxides, hydroxides, sulphates, carbonates, or nitrates; the block is pure Cr or alloy such as ferro-chromium, and using 0.1-10A/cm<SP>2</SP> for 30 min-5 hr this dissolves to give about 1%Cr in the bath; immersion of an article at 800-1100‹C for 1-30 hr under air or inert gas after or during dissolution of Cr gives a Cr carbide layer. The cemented carbide substrate is WC/Co optionally containing TiC, NbC, or TaC.
GB5136873A 1972-11-16 1973-11-06 Method of forming chromium carbide layers Expired GB1413857A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP47114288A JPS5123377B2 (en) 1972-11-16 1972-11-16
JP4082373A JPS519692B2 (en) 1973-04-12 1973-04-12

Publications (1)

Publication Number Publication Date
GB1413857A true GB1413857A (en) 1975-11-12

Family

ID=26380340

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5136873A Expired GB1413857A (en) 1972-11-16 1973-11-06 Method of forming chromium carbide layers

Country Status (4)

Country Link
CA (1) CA1032495A (en)
DE (1) DE2356675C3 (en)
FR (1) FR2207197B1 (en)
GB (1) GB1413857A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0063386A1 (en) * 1981-04-20 1982-10-27 Kabushiki Kaisha Toyota Chuo Kenkyusho Method for forming a carbide layer on the surface of a ferrous alloy article or a cemented carbide article
CN113582727A (en) * 2021-06-16 2021-11-02 上海大学 Method for preparing hard metal carbide coating on graphite surface

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1179242A (en) * 1980-06-17 1984-12-11 Norimasa Uchida Method for treating surfaces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0063386A1 (en) * 1981-04-20 1982-10-27 Kabushiki Kaisha Toyota Chuo Kenkyusho Method for forming a carbide layer on the surface of a ferrous alloy article or a cemented carbide article
CN113582727A (en) * 2021-06-16 2021-11-02 上海大学 Method for preparing hard metal carbide coating on graphite surface

Also Published As

Publication number Publication date
FR2207197A1 (en) 1974-06-14
FR2207197B1 (en) 1976-11-19
DE2356675A1 (en) 1974-05-22
CA1032495A (en) 1978-06-06
DE2356675B2 (en) 1979-01-04
DE2356675C3 (en) 1979-08-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee