ES2080416T3 - PROCEDURE FOR THE TREATMENT OF STEELS AND REFRACTORY METALS. - Google Patents

PROCEDURE FOR THE TREATMENT OF STEELS AND REFRACTORY METALS.

Info

Publication number
ES2080416T3
ES2080416T3 ES92118403T ES92118403T ES2080416T3 ES 2080416 T3 ES2080416 T3 ES 2080416T3 ES 92118403 T ES92118403 T ES 92118403T ES 92118403 T ES92118403 T ES 92118403T ES 2080416 T3 ES2080416 T3 ES 2080416T3
Authority
ES
Spain
Prior art keywords
steels
procedure
treatment
temperature
refractory metals
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 - Lifetime
Application number
ES92118403T
Other languages
Spanish (es)
Inventor
Albrecht Dr Melber
Peter Dr Minarski
Friedrich Dr Preisser
Klaus Dr Zimmermann
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.)
Leybold Durferrit GmbH
Original Assignee
Leybold Durferrit GmbH
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 DE4139975A external-priority patent/DE4139975C2/en
Application filed by Leybold Durferrit GmbH filed Critical Leybold Durferrit GmbH
Application granted granted Critical
Publication of ES2080416T3 publication Critical patent/ES2080416T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C23C8/02—Pretreatment of the material to be coated
    • 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
    • C23C8/80—After-treatment

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)
  • Heat Treatment Of Articles (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Details (AREA)

Abstract

Method for treating steels and metals, especially for depassivating and subsequent thermochemical surface treatment in a process chamber (1,2) under the influence of pressure and temperature, wherein, in a first process step, a first gas or gas mixture selected from the group N2, H2 or NH3 is introduced in a process chamber (1) for the purpose of depassivation, a pressure greater than 1 bar absolute and a temperature between 100 DEG C and 1,000 DEG C being settable in the chamber (1), and in a second process step a second gas or gas mixture selected from the group of N-, C- or B-containing gases is introduced into a process chamber (1,2) for the purpose of thermochemical surface treatment, and a temperature between 100 DEG C and 1,000 DEG C at a pressure greater than or equal to 1 bar absolute being settable. <IMAGE>
ES92118403T 1991-12-04 1992-10-27 PROCEDURE FOR THE TREATMENT OF STEELS AND REFRACTORY METALS. Expired - Lifetime ES2080416T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4139975A DE4139975C2 (en) 1991-12-04 1991-12-04 Process for the treatment of alloyed steels and refractory metals and application of the process
DE4208848A DE4208848C2 (en) 1991-12-04 1992-03-19 Process for the thermochemical after-treatment of steels and metals

Publications (1)

Publication Number Publication Date
ES2080416T3 true ES2080416T3 (en) 1996-02-01

Family

ID=25909771

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92118403T Expired - Lifetime ES2080416T3 (en) 1991-12-04 1992-10-27 PROCEDURE FOR THE TREATMENT OF STEELS AND REFRACTORY METALS.

Country Status (5)

Country Link
EP (1) EP0545069B1 (en)
JP (1) JPH0665631A (en)
AT (1) ATE131216T1 (en)
DE (2) DE4208848C2 (en)
ES (1) ES2080416T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995029269A1 (en) * 1994-04-22 1995-11-02 Innovatique S.A. Method of low pressure nitriding a metal workpiece and oven for carrying out said method
FR2719057B1 (en) * 1994-04-22 1996-08-23 Innovatique Sa Process for the nitriding at low pressure of a metallic part and oven for the implementation of said process.
DE10147205C1 (en) 2001-09-25 2003-05-08 Bosch Gmbh Robert Process for the heat treatment of workpieces made of temperature-resistant steels
PL204747B1 (en) * 2002-10-31 2010-02-26 Politechnika & Lstrok Odzka Method of metal product carburization under negative pressure
DE102009002985A1 (en) * 2009-05-11 2010-11-18 Robert Bosch Gmbh Process for carbonitriding

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE738244C (en) * 1939-02-02 1943-08-07 Messerschmitt Boelkow Blohm Process and device for nitriding steel
US2851387A (en) * 1957-05-08 1958-09-09 Chapman Valve Mfg Co Method of depassifying high chromium steels prior to nitriding
DE1933439A1 (en) * 1968-07-01 1970-01-15 Gen Electric Nitriding process for surface hardening stainless steels - without the use of activators
GB1495703A (en) * 1973-12-12 1977-12-21 Gkn Group Services Ltd Nitriding of ferrous metals
DE2510460A1 (en) * 1975-03-11 1976-09-23 Ipsen Ind Int Gmbh METHOD FOR HEAT TREATMENT OF WORKPIECES MADE OF STEEL WITHOUT THE FORMATION OF RAND OXYDES OF THE ALLOY ELEMENTS
PL192437A1 (en) * 1976-09-16 1978-03-28 Inst Mech Precyz METHOD OF HEAT AND CHEMICAL TREATMENT OF METAL
CH650532A5 (en) * 1982-09-07 1985-07-31 Ver Drahtwerke Ag METHOD FOR FORMING A HARD COATING IN THE COMPONENT FROM ELEMENTS OF THE FOURTH, FIFTH OR SIX SUB-GROUPS OF THE PERIODIC SYSTEM OR ITS ALLOYS.
GB8608717D0 (en) * 1986-04-10 1986-05-14 Lucas Ind Plc Metal components
JP2732403B2 (en) * 1988-10-27 1998-03-30 財団法人応用科学研究所 Ammonia gas nitriding method for non-nitridable metal materials
EP0408168B1 (en) * 1989-07-10 1994-06-08 Daidousanso Co., Ltd. Method of pretreating metallic works and method of nitriding steel
DE4139975C2 (en) * 1991-12-04 2001-02-22 Ald Vacuum Techn Ag Process for the treatment of alloyed steels and refractory metals and application of the process

Also Published As

Publication number Publication date
DE4208848C2 (en) 2001-08-30
DE59204598D1 (en) 1996-01-18
JPH0665631A (en) 1994-03-08
DE4208848A1 (en) 1993-09-23
EP0545069A1 (en) 1993-06-09
ATE131216T1 (en) 1995-12-15
EP0545069B1 (en) 1995-12-06

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