[go: up one dir, main page]

FR491259A - Metal surface hardening improvements - Google Patents

Metal surface hardening improvements

Info

Publication number
FR491259A
FR491259A FR491259DA FR491259A FR 491259 A FR491259 A FR 491259A FR 491259D A FR491259D A FR 491259DA FR 491259 A FR491259 A FR 491259A
Authority
FR
France
Prior art keywords
metal surface
surface hardening
hardening
metal
hardening improvements
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
Other languages
French (fr)
Inventor
Porter William Shimer
Joseph William Richards
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
Application granted granted Critical
Publication of FR491259A publication Critical patent/FR491259A/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
    • C23C8/40—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 liquids, e.g. salt baths, liquid suspensions
    • 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
    • C23C8/40—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 liquids, e.g. salt baths, liquid suspensions
    • C23C8/42—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 liquids, e.g. salt baths, liquid suspensions only one element being applied
    • C23C8/44—Carburising
    • C23C8/46—Carburising of ferrous surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
FR491259D 1918-08-13 1918-08-13 Metal surface hardening improvements Expired FR491259A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR491259T 1918-08-13

Publications (1)

Publication Number Publication Date
FR491259A true FR491259A (en) 1919-05-28

Family

ID=1527282

Family Applications (1)

Application Number Title Priority Date Filing Date
FR491259D Expired FR491259A (en) 1918-08-13 1918-08-13 Metal surface hardening improvements

Country Status (1)

Country Link
FR (1) FR491259A (en)

Similar Documents

Publication Publication Date Title
FR491259A (en) Metal surface hardening improvements
FR21119E (en) Metal cross member
FR489440A (en) Metal cross member
FR517883A (en) Reservoir stylograph
FR489095A (en) Metal casting machine
FR490131A (en) Metal coil-reel
FR517210A (en) Steel propeller
FR519161A (en) Pivot artillery piece
CH78777A (en) Metal can
FR20941E (en) Sawdust furnace
FR21160E (en) Sawdust furnace
FR490652A (en) Sawdust furnace
CH81004A (en) Steel holder
FR488634A (en) Ferro-cerium lighter
FR496480A (en) Hand grenade
FR494227A (en) Copper-zinc-lead alloy
FR502257A (en) Improvement in the manufacture of cast steel chains
FR489511A (en) Metal can crimping machine
FR493943A (en) Metal machine tool
CH79778A (en) Looms shuttle-hunting mechanism
FR496037A (en) Percussion grenade for rifle
FR519922A (en) Metal sheet nut
CH80114A (en) Jig
FR511342A (en) Metal top galoche
FR518683A (en) Pivot artillery piece