ES8206641A1 - Procedimiento para endurecer por cementacion piezas de tra- bajo metalicas - Google Patents

Procedimiento para endurecer por cementacion piezas de tra- bajo metalicas

Info

Publication number
ES8206641A1
ES8206641A1 ES505892A ES505892A ES8206641A1 ES 8206641 A1 ES8206641 A1 ES 8206641A1 ES 505892 A ES505892 A ES 505892A ES 505892 A ES505892 A ES 505892A ES 8206641 A1 ES8206641 A1 ES 8206641A1
Authority
ES
Spain
Prior art keywords
case
components
pressure fluctuations
gas atmosphere
metallic pieces
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
ES505892A
Other languages
English (en)
Other versions
ES505892A0 (es
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.)
Linde GmbH
Original Assignee
Linde 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 Linde GmbH filed Critical Linde GmbH
Publication of ES505892A0 publication Critical patent/ES505892A0/es
Publication of ES8206641A1 publication Critical patent/ES8206641A1/es
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C8/00Solid 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
    • C23C8/06Solid 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
    • C23C8/08Solid 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
    • C23C8/20Carburising
    • C23C8/22Carburising of ferrous surfaces
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C8/00Solid 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
    • C23C8/06Solid 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

Abstract

PROCEDIMIENTO PARA ENDURECER, POR CEMENTACION, PIEZAS DE TRABAJO METALICAS. CONSISTE EN INTRODUCIR LAS PIEZAS EN HORNO A ALTA TEMPERATURA, EXPONIENDOLAS A LA ACCION DE UNA MEZCLA DE GAS CONTENIENDO CARBONO. EN DICHA MEZCLA DE GAS SE GENERANFLUCTUACIONES DE PRESION CON UN PERIODO MAS BREVE EN COMPARACION CON LA DURACION DE TRATAMIENTO TERMICO. LA MEZCLA DE GAS ESTA FORMADA DE UN GAS PORTADOR INERTE, UN GAS CONTENIENDO OXIGENO. LAS FLUCTUACIONES DE PRESION SE GENERAN POR MEZCLA ADITIVA PULSANTE DEL GAS SOPORTADOR INERTE Y-O DEL GAS CONTENIENDO CARBONO Y-O DEL GAS QUE CONTIENE OXIGENO A LOS RESTANTES COMPONENTES.
ES505892A 1980-10-08 1981-09-30 Procedimiento para endurecer por cementacion piezas de tra- bajo metalicas Expired ES8206641A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803038082 DE3038082A1 (de) 1980-10-08 1980-10-08 Verfahren zum einsatzhaerten metallischer werkstuecke

Publications (2)

Publication Number Publication Date
ES505892A0 ES505892A0 (es) 1982-09-01
ES8206641A1 true ES8206641A1 (es) 1982-09-01

Family

ID=6113954

Family Applications (1)

Application Number Title Priority Date Filing Date
ES505892A Expired ES8206641A1 (es) 1980-10-08 1981-09-30 Procedimiento para endurecer por cementacion piezas de tra- bajo metalicas

Country Status (9)

Country Link
EP (1) EP0049531B1 (es)
AT (1) ATA539780A (es)
AU (1) AU542462B2 (es)
BR (1) BR8102151A (es)
DE (2) DE3038082A1 (es)
DK (1) DK433081A (es)
ES (1) ES8206641A1 (es)
NO (1) NO813284L (es)
ZA (1) ZA812499B (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3146042A1 (de) * 1981-11-20 1983-05-26 Linde Ag, 6200 Wiesbaden Verfahren zum einsatzhaerten metallischer werkstuecke
FR2586259B1 (fr) * 1985-08-14 1987-10-30 Air Liquide Procede de cementation rapide dans un four continu

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE618026C (de) * 1932-08-28 1935-08-30 Ewald Hanus Verfahren zum Zementieren von Eisen und Stahl
FR835931A (fr) * 1938-03-30 1939-01-05 Procédé pour la cémentation gazeuse de pièces en acier
DE1041067B (de) * 1955-12-06 1958-10-16 Elino Ind Ofenbau Carl Hanf & Verfahren zum Aufkohlen, Nitrieren oder Karbonitrieren von Stahlteilen
DE2624828C2 (de) * 1976-06-03 1985-08-14 Alco Standard Corp., Valley Forge Verfahren und Ofen zur Durchführung einer Wärmebehandlung von Werkstücken
DE2851982A1 (de) * 1978-12-01 1980-06-12 Degussa Verfahren zum steuern von aufkohlungsprozessen im unterdruckbereich

Also Published As

Publication number Publication date
EP0049531A1 (de) 1982-04-14
ATA539780A (de) 1982-04-15
DE3170867D1 (en) 1985-07-11
ES505892A0 (es) 1982-09-01
DK433081A (da) 1982-04-09
NO813284L (no) 1982-04-13
DE3038082A1 (de) 1982-05-06
ZA812499B (en) 1982-04-28
BR8102151A (pt) 1982-08-17
AU6915581A (en) 1982-04-22
AU542462B2 (en) 1985-02-21
EP0049531B1 (de) 1985-06-05

Similar Documents

Publication Publication Date Title
ZW24080A1 (en) Improved process and apparatus for the production of fuel gas from coal
ES8206658A1 (es) Procedimiento paa endurecer por cementacion piezas de traba-jo metalicas.
ZA853988B (en) Arrangement comprising a gasifier and a direct reduction furnance
ES8206615A1 (es) Procedimiento para la generacion de gas dentro de un reactorde bano de hierro
GB1542142A (en) Process for treating gas produced by the pressure gasification of coal
US4519853B1 (es)
GB2006832A (en) Process for the gas carburisation of steel workpieces
ES8307921A1 (es) Procedimiento para la cementacion de piezas metalicas.
ES8206641A1 (es) Procedimiento para endurecer por cementacion piezas de tra- bajo metalicas
PL198195A1 (pl) Sposob obrobki materialu wsadowego zwlaszcza przy wytwarzaniu gazu z wegla lub materialu zawierajacego wegiel oraz urzadzenie do obrobki materialu wsadowego,zwlaszcza przy wytwarzaniu gazu z wegla lub materialu zawierajacego wegiel
GB2083839B (en) Method and apparatus for the direct reduction of iron in a shaft furnace using gas from coal
JPS56139121A (en) Method of treating exhaust gas obtained in blast furnace
ES8200926A1 (es) Un metodo de recocer un articulo de metal ferreo
JPS5223107A (en) Method for manufacturing metallurgical formed coke
ZA872522B (en) Process for the adduction of chemical-metal elements in metal foundings
DE3560367D1 (en) Method and device for annealing metal work pieces
FR2506339B1 (es)
GB2085915B (en) Method for producing coke and a high calorific gas from coal
GB754698A (en) Means for the elimination of oxides of nitrogen from coal gases
ZA816970B (en) Process for carburising workpieces and for annealing workpieces under conditions which do not affect the level of carburisation
JPS55152182A (en) Steam treatment of iron based product
ZA836052B (en) Method for the production of a gas atmosphere for the annealing of metal pieces for machining
JPS51114378A (en) A method of removing sulphur oxide and nitrogen from waste gas and of wtilizing the same
ES8402866A1 (es) Procedimiento para el enfriamiento de las toberas en las instalaciones de gasificacion de carbon.
JPS5223567A (en) Process for treatment of exhaust gases evolved in incineration furnace s, etc.