FR676423A - Perfectionnements au traitement du fer et de l'acier - Google Patents

Perfectionnements au traitement du fer et de l'acier

Info

Publication number
FR676423A
FR676423A FR676423DA FR676423A FR 676423 A FR676423 A FR 676423A FR 676423D A FR676423D A FR 676423DA FR 676423 A FR676423 A FR 676423A
Authority
FR
France
Prior art keywords
iron
steel processing
steel
processing
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
English (en)
Inventor
Robert Esnault-Pelterie
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 filed Critical
Application granted granted Critical
Publication of FR676423A publication Critical patent/FR676423A/fr
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
    • C23C8/08—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 only one element being applied
    • C23C8/24—Nitriding
    • C23C8/26—Nitriding of ferrous surfaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • 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
    • C23C8/02—Pretreatment of the material to be coated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
FR676423D 1928-06-26 1929-06-08 Perfectionnements au traitement du fer et de l'acier Expired FR676423A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB676423X 1928-06-26

Publications (1)

Publication Number Publication Date
FR676423A true FR676423A (fr) 1930-02-22

Family

ID=10492124

Family Applications (1)

Application Number Title Priority Date Filing Date
FR676423D Expired FR676423A (fr) 1928-06-26 1929-06-08 Perfectionnements au traitement du fer et de l'acier

Country Status (1)

Country Link
FR (1) FR676423A (fr)

Similar Documents

Publication Publication Date Title
FR676423A (fr) Perfectionnements au traitement du fer et de l'acier
FR651827A (fr) Perfectionnements apportés au décapage des métaux
FR730585A (fr) Perfectionnements au traitement des minerais sulfurés de fer
FR620643A (fr) Procédé de traitement d'articles en fer et acier
FR624040A (fr) Perfectionnements apportés à la cémentation du fer et de l'acier
FR652695A (fr) Perfectionnements relatifs à l'épaississement et au traitement du latex
FR652050A (fr) Traitement des minerais de fer et leur équivalent
FR664458A (fr) Procédé d'utilisation de cérium dans la fabrication de l'acier et du fer
FR666173A (fr) Perfectionnements au traitement des pyrites de fer
FR678438A (fr) Perfectionnements apportés à la fabrication et au traitement des fontes malléables
FR654798A (fr) Perfectionnements au nettoyage et au décapage des métaux
FR655028A (fr) Perfectionnement apporté dans l'établissement des règles à tracer
FR658502A (fr) Procédé d'autodoublage protecteur pénétrant du fer et de l'acier
FR647587A (fr) Perfectionnements apportés à la fabrication de l'acier
FR675828A (fr) Additifs utilisables dans l'attaque aux acides du fer et de l'acier
FR573710A (fr) Perfectionnements à la fabrication d'alliages de fer et d'acier
FR657378A (fr) Perfectionnements apportés aux procédés et dispositifs pour le traitement des boyaux d'animaux
FR706834A (fr) Perfectionnements apportés à la fabrication de l'acier
FR725883A (fr) Procédé de cémentation de l'acier et du fer
FR697403A (fr) Perfectionnements au traitement du laitier
FR720051A (fr) Alliages de fer et alliages d'acier renfermant du soufre
FR726564A (fr) Perfectionnements au traitement d'alliages d'aluminium-silicium
FR676821A (fr) Procédés de décarburation des fontes et aciers
FR573866A (fr) Agent de désulfuration du fer et de l'acier
FR701917A (fr) Perfectionnements à la fabrication et au traitement des alliages de fer et d'aluminium