ES2042524T3 - Procedimiento y aparato para el tratamiento termico de piezas metalicas. - Google Patents
Procedimiento y aparato para el tratamiento termico de piezas metalicas.Info
- Publication number
- ES2042524T3 ES2042524T3 ES87112804T ES87112804T ES2042524T3 ES 2042524 T3 ES2042524 T3 ES 2042524T3 ES 87112804 T ES87112804 T ES 87112804T ES 87112804 T ES87112804 T ES 87112804T ES 2042524 T3 ES2042524 T3 ES 2042524T3
- Authority
- ES
- Spain
- Prior art keywords
- gas
- furnace
- continuous furnace
- heating zone
- nitrogen
- 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
Links
Classifications
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Furnace Details (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Tunnel Furnaces (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
SE DESCRIBE UN PROCEDIMIENTO PARA EL TRATAMIENTO TERMICO DE PIEZAS DE TRABAJO METALICAS EN UN HORNO CONTINUO CALENTADO POR GAS, BAJO LA INFLUENCIA DE ATMOSFERA GASIFICADA, FORMADA ESENCIALMENTE POR NITROGENO, HIDROGENO Y MONOXIDO DE CARBONO. CON EL FIN DE RENTABILIZAR ESTE PROCEDIMIENTO MEDIANTE EL AHORRO DE GAS, SE PROPONE QUE LA ATMOSFERA GASIFICADA A BASE DE UN GAS DE TRATAMIENTO, CONTENIENDO NITROGENO, HIDROGENO Y MONOXIDO DE CARBONO, SEA APORTADO AL HORNO CONTINUO EN EL AMBITO DE SU ZONA CALIENTE, Y QUE ANTES DE SU INMEDIATA ENTRADA EN EL HORNO CONTINUO, SE GENERE POR TRANSFORMACION CATALITICA UN GAS, CONTENIENDO HIDROCARBUROS Y AIRE, Y PARA FORMAR NITROGENO, QUE ES APORTADO AL HORNO CONTINUO POR AMBAS PARTES DEL PUNTO DE ALIMENTACION PARA EL GAS DE TRATAMIENTO, ENTRE LA ENTRADA AL HORNO Y ZONA CALIENTE, ASI COMO ENTRE LA ZONA CALIENTE Y SALIDA DEL HORNO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863630833 DE3630833A1 (de) | 1986-09-10 | 1986-09-10 | Verfahren und vorrichtung zur waermebehandlung metallischer werkstuecke |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2042524T3 true ES2042524T3 (es) | 1993-12-16 |
Family
ID=6309316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES87112804T Expired - Lifetime ES2042524T3 (es) | 1986-09-10 | 1987-09-02 | Procedimiento y aparato para el tratamiento termico de piezas metalicas. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0261461B1 (es) |
AT (1) | ATE89868T1 (es) |
BR (1) | BR8704618A (es) |
DE (2) | DE3630833A1 (es) |
ES (1) | ES2042524T3 (es) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3842372C2 (de) * | 1988-12-16 | 1996-10-02 | Induktionserwaermung Fritz Due | Vorrichtung zur Wärmebehandlung metallischer Werkstücke |
DE3942810A1 (de) * | 1989-12-23 | 1991-06-27 | Linde Ag | Verfahren zur bereitstellung und verteilung von behandlungsgas bei waermebehandlungen |
DE4016183A1 (de) * | 1990-05-19 | 1991-11-21 | Linde Ag | Verfahren zur verbesserten bereitstellung von behandlungsgas bei waermebehandlungen |
FR2668584B1 (fr) * | 1990-10-26 | 1994-03-18 | Lair Liquide | Procede d'elaboration d'une atmosphere de traitement thermique et installation de traitement thermique. |
DE4343927C1 (de) * | 1993-12-22 | 1995-01-05 | Linde Ag | Verfahren zur Wärmebehandlung von Werkstücken unter Behandlungsgas |
DE19545764C2 (de) * | 1995-12-07 | 2000-02-17 | Linde Ag | Verfahren zur Schutzgaserzeugung für einen Wärmebehandlungsofen und Wärmebehandlungsanlage |
IT1291479B1 (it) * | 1997-01-29 | 1999-01-11 | Rivoira Spa | Procedimento di trattamento termico di pezzi metallici a base ferrosa in un'atmosfera attiva ad elevato potenziale di carbonio. |
DE10347312B3 (de) * | 2003-10-08 | 2005-04-14 | Air Liquide Deutschland Gmbh | Verfahren zur Wärmebehandlung von Eisenwerkstoffen |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD31283A (es) * | ||||
DE1433735B1 (de) * | 1963-09-21 | 1969-09-04 | Werner Goehring | Verfahren zur Erzielung einer Ofenatmosphaere,mit der eine oxydationsfreie Waermebehandlung von Werkstuecken aus Stahl unter gleichzeitiger Beeinflussung des Kohlenstoffgehalts durchfuehrbar ist |
DD131292A1 (de) * | 1977-03-28 | 1978-06-14 | Arnd Mueller | Einrichtung zur schutzgaserzeugung im ofenraum |
DE3440876A1 (de) * | 1984-11-08 | 1986-05-15 | Linde Ag, 6200 Wiesbaden | Verfahren und vorrichtung zum herstellen einer schutzgasatmosphaere |
-
1986
- 1986-09-10 DE DE19863630833 patent/DE3630833A1/de not_active Withdrawn
-
1987
- 1987-09-02 ES ES87112804T patent/ES2042524T3/es not_active Expired - Lifetime
- 1987-09-02 EP EP87112804A patent/EP0261461B1/de not_active Expired - Lifetime
- 1987-09-02 DE DE8787112804T patent/DE3785989D1/de not_active Expired - Fee Related
- 1987-09-02 AT AT87112804T patent/ATE89868T1/de not_active IP Right Cessation
- 1987-09-04 BR BR8704618A patent/BR8704618A/pt unknown
Also Published As
Publication number | Publication date |
---|---|
DE3630833A1 (de) | 1988-03-17 |
ATE89868T1 (de) | 1993-06-15 |
EP0261461B1 (de) | 1993-05-26 |
BR8704618A (pt) | 1988-04-26 |
EP0261461A2 (de) | 1988-03-30 |
DE3785989D1 (de) | 1993-07-01 |
EP0261461A3 (en) | 1989-03-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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