DE1533964A1 - Vorrichtung zur Oberflaechenbehandlung von Werkstuecken in einem Gluehofen - Google Patents

Vorrichtung zur Oberflaechenbehandlung von Werkstuecken in einem Gluehofen

Info

Publication number
DE1533964A1
DE1533964A1 DE19671533964 DE1533964A DE1533964A1 DE 1533964 A1 DE1533964 A1 DE 1533964A1 DE 19671533964 DE19671533964 DE 19671533964 DE 1533964 A DE1533964 A DE 1533964A DE 1533964 A1 DE1533964 A1 DE 1533964A1
Authority
DE
Germany
Prior art keywords
workpieces
surface treatment
annealing furnace
gas
furnace
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.)
Ceased
Application number
DE19671533964
Other languages
English (en)
Other versions
DE1533964B2 (de
Inventor
Ottwin Krach
Karl-Heinz Winter
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.)
Evonik Operations GmbH
Original Assignee
Degussa 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
Application filed by Degussa GmbH filed Critical Degussa GmbH
Publication of DE1533964A1 publication Critical patent/DE1533964A1/de
Publication of DE1533964B2 publication Critical patent/DE1533964B2/de
Ceased 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
    • C23C8/20—Carburising
    • C23C8/22—Carburising 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere
    • C21D1/763—Adjusting the composition of the atmosphere using a catalyst
    • 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
    • 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
    • C23C8/28—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 more than one element being applied in one step
    • C23C8/30—Carbo-nitriding
    • C23C8/32—Carbo-nitriding of ferrous surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Furnace Details (AREA)
  • Catalysts (AREA)

Description

DEUTSCHE GOLD- UND SILBERSCIIEXDEANSTALT vormal· ϋοβββίβτ
Ve^aefrauenstr. 9
zur Oberflächenbehandlung von Werkstücken in GlHhofen · ■. . . . .... . ;.-..:-
bezw· Trägergase fü* die ehemieohe Stahl b«sw. Stiüilleeierungen, a.D. zua G&ekohlen und
> «bor auch zua Dlankhärton (VrL^erjaee), v«rd»n ie ail-ία beeond«r«n Generator·η nergeetällto Bovorsuet hand®It es sieh hierbei un endothera erzeugte Schutzea«e( a.h. den Schutzgas wird ao woaig Verbronnunseluft beiffoaiAcht« daee sieh die Verbrennung Aicac wie bei oxoeuerBen Sohutzgaaen von selbst aulVuchterhält. Die endothermen ächutzgaeorzeuger haben einen zustttzXich behaizten Raa^tioneraua, in den eich, zur beeeer«.'. äp^ltun^· inatoeeondere der schworen Kohlenwaeeorstoffo» ein Katalysator befindet.
,.wurde schon aehrfach vorgeschlagen, die Schutzgase im eigentlichen Glühofen, in dem das Gaskohlen, Gaskarboniwrieren oder Blank-. .,rten durchgeführt wird, zu erzeugen· Dabei komm« os aber zu unerwünschten aussbildungeh, weiche cio Oberfl&che der VTerketUdto inaktiv sachen. Ausserdem wird durch den Russ die Betriebssicherheit aes Ofens selbst in Frage gestellt.
£s wurde nun gefunden, dass aan die Schu«zga»e ohne Schwierigkeiten
arch Einleiten von Verbrennungsluft und Gasen im Ofen selbst her* β .ollen kann, wenn titan die keramischen Of o*iwändo mit einer flüssigen '.v^^alyaatormasse z.B. Nickeloxid behände χ τ. Da die keramischen Vande oines GlwAofens grossf lttohig sind, entsteht durch die Dehar.. lung ο ine genügend grosso aktive lläche. Ausserdem wird die Biltfui.^ von Uuss verhindert.
001830/0246

Claims (1)

  1. tazentanspruoh
    1533984
    '.Orriciitur.i; zur ■jberfXächen.behsnalunß- von V&rkätUcken in elftem-C-lüiio/'er«. ur.---;^r \ 3rw-e;ru\ur:£ vor. katalytisch, zrzcustem Scliats* h%^ Trägergaü., dadur jh. geliüiiaaeiol^ne"} driss :5ü' keraraiäche Innsnäw/1 "OC:u des giisdicJit an Glüiioronj ritr einer liaTüIj'sa-corfäassö derar ä ''alegi is"j5 da;--β das S^iiatzg^a durch direiit;es Eüilciteii von Gas ui,ä Verbre^ixnts luft in; GliuioTvn aelbsx ex-2eujbar ist.
    BAD
    in, den 2o.3»ö7
    Schn/Sa
    009830/0246
DE1533964A 1967-03-23 1967-03-23 Ofen zur Oberflächenbehandlung von Werkstücken in Schutz- oder Trägergas Ceased DE1533964B2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0052614 1967-03-23

Publications (2)

Publication Number Publication Date
DE1533964A1 true DE1533964A1 (de) 1970-07-23
DE1533964B2 DE1533964B2 (de) 1975-11-13

Family

ID=7054321

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1533964A Ceased DE1533964B2 (de) 1967-03-23 1967-03-23 Ofen zur Oberflächenbehandlung von Werkstücken in Schutz- oder Trägergas

Country Status (5)

Country Link
US (1) US3519257A (de)
AT (1) AT287762B (de)
DE (1) DE1533964B2 (de)
FR (1) FR1577340A (de)
GB (1) GB1189046A (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3620518A (en) * 1967-03-23 1971-11-16 Degussa Process and device for the treatment of surfaces of workpieces in an annealing furnace
GB1351234A (en) * 1970-07-21 1974-04-24 Nissan Motor Process for forming a soft nitride layer in a metal surface
US3796615A (en) * 1971-06-23 1974-03-12 Hayes Inc C I Method of vacuum carburizing
DE2324918C3 (de) * 1973-05-17 1983-12-08 Fa. J. Aichelin, 7015 Korntal Verfahren zur Herstellung von Epsilon-Karbonitridschichten auf Teilen aus Eisenlegierungen
US4160680A (en) * 1976-11-05 1979-07-10 Sola Basic Industries, Inc. Vacuum carburizing
US4249965A (en) * 1978-09-19 1981-02-10 Midland-Ross Corporation Method of generating carrier gas
EP0024106B1 (de) * 1979-07-09 1986-01-02 Ford Motor Company Limited Verfahren zur Wärmebehandlung von Werkstücken aus Eisen
JPS5638419A (en) * 1979-09-05 1981-04-13 Kanto Yakin Kogyo Kk Metal heating furnace with protective atmosphere
DE3230723A1 (de) * 1982-08-18 1984-02-23 Linde Ag, 6200 Wiesbaden Verfahren zum herstellen einer gasatmosphaere fuer das gluehen metallischer werkstuecke
US4596526A (en) * 1985-03-04 1986-06-24 Worthington Industries, Inc. Batch coil annealing furnace and method
DE102009038598B4 (de) * 2009-08-26 2017-06-22 Ipsen International Gmbh Verfahren und Vorrichtung zur Aufbereitung von Prozessgasen für Wärmebehandlungen von metallischen Werkstoffen/Werkstücken in Industrieöfen
EP2578704A1 (de) * 2011-10-07 2013-04-10 Linde Aktiengesellschaft Verfahren und System zum Aufkohlen oder Karbonitrieren einer Komponente und entsprechend behandelte Komponente

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125327A (en) * 1964-03-17 williams
US3075757A (en) * 1957-08-28 1963-01-29 Engelhard Ind Inc Furnace
US3259527A (en) * 1963-10-21 1966-07-05 Midland Ross Corp Electric heating elements for carburizing atmospheres

Also Published As

Publication number Publication date
US3519257A (en) 1970-07-07
AT287762B (de) 1971-02-10
FR1577340A (de) 1969-08-08
DE1533964B2 (de) 1975-11-13
GB1189046A (en) 1970-04-22

Similar Documents

Publication Publication Date Title
DE1533964A1 (de) Vorrichtung zur Oberflaechenbehandlung von Werkstuecken in einem Gluehofen
EP1355111A3 (de) Brenner mit seitlichem Austritt zur flammenlosen Oxidation
DE2550231A1 (de) Verfahren zur entfernung von stickstoffoxiden aus verbrennungsabgas
FR1262278A (fr) Procédé de conversion catalytique de distillats hydrocarbonés par hydro-raffinage, traitement intermédiaire et hydro-craquage
EP1406719A1 (de) Verfahren zum behandeln von ammoniakhaltigen rauchgasen
JPS57105240A (en) Exhaust gas purifying catalyst and preparation thereof
DE1594710B2 (de) Verfahren zur katalytischen reinigung sauerstoffhaltiger abgase
HUT63650A (en) Process for the modulation of gene expression by changing the secondary structure of rna
DE752150C (de) Verfahren zur Herstellung von Silicasteinen
DE2341117C3 (de) Reaktionskammer zur katalytischen Verbrennung des Kohlenmonoxid-Anteiles von Rauchgasen
DE59507546D1 (de) Verfahren zur katalytischen Reduktion von in den Rauchgasen einer Feuerung mit flüssigen Brennstoffen enthaltenen, Stickoxiden mit Ammoniak und Verfahren zur Regenerierung eines Katalysators
DE595068C (de) Sicherheitszuendmasse
DE2618027C2 (de) Verwendung eines Brenners für die Zersetzung von schwefelwasserstoffhaltigen Ammoniakschwaden
DE490017C (de) Die Verwendung an sich bekannter Chrom- und Chromnickelstahllegierungen als die katalytische Zersetzung des Nitriergases verhindernder Baustoff fuer Teile von Nitrierhaerteoefen
DE1248642B (de) Verfahren zur Herstellung von Acrylsäurenitril durch Umsetzung von Propylen mit Sauerstoff und Ammoniak
JPS5594643A (en) Denitrification catalyst
DE395967C (de) Kippbarer Martinofen
DE1212052B (de) Verfahren zur Verbrennung des in Koksofengasen enthaltenen Ammoniaks unter gleichzeitiger Verbrennung des Schwefelwasserstoffs
DE449171C (de) Verfahren und Ofen zum Gluehen und Haerten von Metallen, keramischen Massen u. dgl.
DE547982C (de) Katalysator
DE371978C (de) Verfahren zur ununterbrochenen Gewinnung von Schwefeldioxyd aus Gips
DE1521204C3 (de) Verfahren zum Einsatzhärten von Stahl
JPS5266891A (en) Method of producing exhaust gas denitration catalyst
DE402259C (de) Pyrophorer Gasanzuender
DE431946C (de) Rueckenplatte zum Befestigen auswechselbarer Zaehne

Legal Events

Date Code Title Description
BHV Refusal