FR2444724A1 - Procede pour la protection locale de pieces de fer et d'acier lors de traitements thermiques - Google Patents

Procede pour la protection locale de pieces de fer et d'acier lors de traitements thermiques

Info

Publication number
FR2444724A1
FR2444724A1 FR7930434A FR7930434A FR2444724A1 FR 2444724 A1 FR2444724 A1 FR 2444724A1 FR 7930434 A FR7930434 A FR 7930434A FR 7930434 A FR7930434 A FR 7930434A FR 2444724 A1 FR2444724 A1 FR 2444724A1
Authority
FR
France
Prior art keywords
iron
local protection
during heat
heat treatments
parts during
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.)
Granted
Application number
FR7930434A
Other languages
English (en)
Other versions
FR2444724B1 (fr
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.)
Barkas Werke VEB
Original Assignee
Barkas Werke VEB
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 Barkas Werke VEB filed Critical Barkas Werke VEB
Publication of FR2444724A1 publication Critical patent/FR2444724A1/fr
Application granted granted Critical
Publication of FR2444724B1 publication Critical patent/FR2444724B1/fr
Granted 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
    • C23C8/04—Treatment of selected surface areas, e.g. using masks
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
    • C21D1/72—Temporary coatings or embedding materials applied before or during heat treatment during chemical change of surfaces
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • C23C4/08—Metallic material containing only metal elements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

Procédé pour la protection locale des surfaces de pièces de fer ou d'acier contre l'absorption de carbone, d'azote et de bore lors de traitements thermiques sans utilisation de cuivre en tant que moyen de protection locale En vue de cette protection locale des surfaces externes de pièces de fer et d'acier, de l'aluminium est appliqué avant le traitement thermique, en une épaisseur de couche de 10 à 100 microns sur les parties des surfaces à protéger au moyen d'un procédé de pulvérisation à travers une flamme; la structure du dispositif de pulvérisation, les paramètres du pistolet pulvérisateur et sa distance à la pièce, entre 15 et 25 cm environ, ainsi que la durée du traitement et l'intensité du jet sont adaptés entre eux de telle sorte que l'épaisseur de couche se situe dans la gamme de tolérance spécifiée, de préférence entre 10 et 30 microns.
FR7930434A 1978-12-20 1979-12-12 Procede pour la protection locale de pieces de fer et d'acier lors de traitements thermiques Granted FR2444724A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD20995878A DD140761B1 (de) 1978-12-20 1978-12-20 Verfahren zum lokalen schutz von eisen-und stahlteilen bei waermebehandlungen

Publications (2)

Publication Number Publication Date
FR2444724A1 true FR2444724A1 (fr) 1980-07-18
FR2444724B1 FR2444724B1 (fr) 1983-11-10

Family

ID=5515984

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7930434A Granted FR2444724A1 (fr) 1978-12-20 1979-12-12 Procede pour la protection locale de pieces de fer et d'acier lors de traitements thermiques

Country Status (7)

Country Link
JP (1) JPS5594435A (fr)
DD (1) DD140761B1 (fr)
DE (1) DE2947799A1 (fr)
FR (1) FR2444724A1 (fr)
GB (1) GB2045285B (fr)
HU (1) HU184051B (fr)
IT (1) IT7928184A0 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0233471A (ja) * 1988-07-22 1990-02-02 Mitsubishi Electric Corp 出力回転軸の製造方法
EP0860516A3 (fr) * 1997-02-04 1999-05-19 Fuji Kihan Co., Ltd. Procédé pour appliquer un revêtement métallique
JP4248037B2 (ja) 1997-02-04 2009-04-02 株式会社不二機販 金属被膜の形成方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR638322A (fr) * 1927-05-10 1928-05-22 Aubert Et Duval Freres Soc Procédé pour protéger contre l'action durcissante de l'azote certaines parties d'une pièce destinée à être durcie par nitruration

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR638322A (fr) * 1927-05-10 1928-05-22 Aubert Et Duval Freres Soc Procédé pour protéger contre l'action durcissante de l'azote certaines parties d'une pièce destinée à être durcie par nitruration

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CA1959 *

Also Published As

Publication number Publication date
JPS5594435A (en) 1980-07-17
IT7928184A0 (it) 1979-12-19
HU184051B (en) 1984-06-28
FR2444724B1 (fr) 1983-11-10
GB2045285A (en) 1980-10-29
GB2045285B (en) 1983-04-20
DD140761B1 (de) 1981-02-25
DE2947799A1 (de) 1980-07-03
DD140761A1 (de) 1980-03-26

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Legal Events

Date Code Title Description
ST Notification of lapse