GB743643A - Process for imparting an improved finish to the surface of metals, including iron and steel, by means of diffusion treatment - Google Patents

Process for imparting an improved finish to the surface of metals, including iron and steel, by means of diffusion treatment

Info

Publication number
GB743643A
GB743643A GB17205/51A GB1720551A GB743643A GB 743643 A GB743643 A GB 743643A GB 17205/51 A GB17205/51 A GB 17205/51A GB 1720551 A GB1720551 A GB 1720551A GB 743643 A GB743643 A GB 743643A
Authority
GB
United Kingdom
Prior art keywords
iron
treatment
silicon tetrachloride
diffusion process
imparting
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
GB17205/51A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB743643A publication Critical patent/GB743643A/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
    • C23C8/00—Solid 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
    • C23C8/06—Solid 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 using gases
    • 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
    • C23C10/06—Solid state diffusion of only metal elements or silicon into metallic material surfaces using gases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

Silicon tetrachloride, used in the treatment of iron surfaces to form diffusion alloys, is regenerated by passing the ferric chloride, formed in the diffusion process whilst still in vapour form, through a hollow cylinder down which ferrosilicon powder is allowed to fall.ALSO:Surfaces of iron, copper or alloys thereof are reacted with fine chlorine in conjunction with a chloride of Ti, Sn, Cr, Sb, p Zn, Al, Cu, Si, C, B or N at 850 DEG -1250 DEG C. Prior to treatment, the surface may be activated by oxidation and reduction, and the diffusion process may take place with the simultaneous application of supersonic waves. In a continuous diffusion process, the gas mixture may be passed in cocurrent or counter-current, or partly the one and partly the other, with respect to the objects to be treated. Ferric chloride, formed in the treatment of iron with silicon tetrachloride, may be passed in vapour form through a hollow cylinder down which ferrosilicon powder is allowed to fall, regenerating silicon tetrachloride and forming chemically pure iron.
GB17205/51A 1950-12-14 1951-07-19 Process for imparting an improved finish to the surface of metals, including iron and steel, by means of diffusion treatment Expired GB743643A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE743643X 1950-12-14

Publications (1)

Publication Number Publication Date
GB743643A true GB743643A (en) 1956-01-18

Family

ID=6647273

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17205/51A Expired GB743643A (en) 1950-12-14 1951-07-19 Process for imparting an improved finish to the surface of metals, including iron and steel, by means of diffusion treatment

Country Status (1)

Country Link
GB (1) GB743643A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2227755A (en) * 1988-12-08 1990-08-08 Univ Hull Improving the wear resistance of metallic components by coating and diffusion treatment
DE19539305A1 (en) * 1995-10-23 1997-04-24 Dechema Titanium@-aluminium@ alloy parts with improved high temperature corrosion resistance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2227755A (en) * 1988-12-08 1990-08-08 Univ Hull Improving the wear resistance of metallic components by coating and diffusion treatment
GB2227755B (en) * 1988-12-08 1993-03-10 Univ Hull A process for improving the wear and corrosion resistance of metallic components
DE19539305A1 (en) * 1995-10-23 1997-04-24 Dechema Titanium@-aluminium@ alloy parts with improved high temperature corrosion resistance

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