ES2026823A6 - Procedimiento de tratamoento termico de objetos metalicos. - Google Patents
Procedimiento de tratamoento termico de objetos metalicos.Info
- Publication number
- ES2026823A6 ES2026823A6 ES9100765A ES9100765A ES2026823A6 ES 2026823 A6 ES2026823 A6 ES 2026823A6 ES 9100765 A ES9100765 A ES 9100765A ES 9100765 A ES9100765 A ES 9100765A ES 2026823 A6 ES2026823 A6 ES 2026823A6
- Authority
- ES
- Spain
- Prior art keywords
- nitrogen
- content
- atmosphere
- helium
- gas
- 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
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 7
- 229910052757 nitrogen Inorganic materials 0.000 abstract 4
- 239000007789 gas Substances 0.000 abstract 3
- 239000001307 helium Substances 0.000 abstract 3
- 229910052734 helium Inorganic materials 0.000 abstract 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000010926 purge Methods 0.000 abstract 1
- 238000006467 substitution reaction Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B11/00—Bell-type furnaces
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/663—Bell-type furnaces
- C21D9/667—Multi-station furnaces
- C21D9/67—Multi-station furnaces adapted for treating the charge in vacuum or special atmosphere
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
PROCEDIMIENTO DE TRATAMIENTO TERMICO DE OBJETOS METALICOS. SE REALIZA BAJO ATMOSFERA DE PROTECCION EN UN HORNO QUE TRABAJA DE MODO DISCONTINUO, DEL TIPO EN QUE EN UNA FASE INICIAL DE SUBIDA DE TEMPERATURA SE ASEGURA UNA INYECCION DE UN CAUSAL DE GAS DA BARRIDO CON CONTENIDO SUSTANCIAL DE NITROGENO, MIENTRAS QUE LA FASE DE ENFRIAMIENTO SE EFECTUA BAJO ATMOSFERA CON CONTENIDO PREDOMINANTE DE GAS DE MEJOR CONDUCTIVIDAD TERMICA QUE EL NITROGENO, EN EL QUE SE PROVOCA UNA SUSTITUCION DE LA ATMOSFERA A BASE DE NITROGENO POR UNA ATMOSFERA A BASE DE HELIO Y ESTO EN EL MOMENTO EN QUE SE HA REALIZADO SUSTANCIALMENTE LA SUBIDA DE TEMPERATURA. EL GAS CON CONTENIDO SUSTANCIAL EN HELIO ES UNA MEZCLA DE HELIO E HIDROGENO CON CONTENIDO INFERIOR A 10%. APLICACION A LOS HORNOS DE CAMPANA CLASICOS QUE UTILIZAN NITROGENO, A RESERVA DE UNA MEJORA SENCILLA DE LAS JUNTAS DE ESTANQUEIDAD.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9004306A FR2660744B1 (fr) | 1990-04-04 | 1990-04-04 | Four a cloches. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2026823A6 true ES2026823A6 (es) | 1992-05-01 |
Family
ID=9395438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES9100765A Expired - Lifetime ES2026823A6 (es) | 1990-04-04 | 1991-03-25 | Procedimiento de tratamoento termico de objetos metalicos. |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPH05263126A (es) |
| BE (1) | BE1006163A4 (es) |
| CA (1) | CA2039385A1 (es) |
| ES (1) | ES2026823A6 (es) |
| FR (1) | FR2660744B1 (es) |
| IT (1) | IT1244783B (es) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4129879A1 (de) * | 1991-09-09 | 1993-03-11 | Loi Ind Ofenanlagen | Verfahren zum austausch der atmosphaere eines industrieofens |
| DE102004058464A1 (de) * | 2004-12-03 | 2006-06-22 | Linde Ag | Verfahren zur Gasabschreckung |
| WO2009149903A1 (de) | 2008-06-13 | 2009-12-17 | Loi Thermoprocess Gmbh | Verfahren zum hochtemperatur-glühen von kornorientiertem elektroband in einer schutzgasatmospäre in einem wärmebehandlungsofen |
| CN101812584B (zh) * | 2010-05-06 | 2012-03-21 | 山西太钢不锈钢股份有限公司 | 罩式炉退火吹氢方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2450081A (en) * | 1945-04-05 | 1948-09-28 | George R Burkhardt | Noble gas metallurgy |
| GB1233847A (es) * | 1968-06-28 | 1971-06-03 | ||
| AT395321B (de) * | 1983-07-05 | 1992-11-25 | Ebner Ind Ofenbau | Verfahren zum abkuehlen von chargen in diskontinuierlich arbeitenden industrieoefen, insbesondere von stahldraht- oder - bandbunden in haubengluehoefen |
| DE3736501C1 (de) * | 1987-10-28 | 1988-06-09 | Degussa | Verfahren zur Waermebehandlung metallischer Werkstuecke |
-
1990
- 1990-04-04 FR FR9004306A patent/FR2660744B1/fr not_active Expired - Fee Related
-
1991
- 1991-03-14 IT ITMI910683A patent/IT1244783B/it active IP Right Grant
- 1991-03-22 JP JP3058783A patent/JPH05263126A/ja active Pending
- 1991-03-25 ES ES9100765A patent/ES2026823A6/es not_active Expired - Lifetime
- 1991-03-28 CA CA002039385A patent/CA2039385A1/fr not_active Abandoned
- 1991-04-02 BE BE9100299A patent/BE1006163A4/fr not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2660744A1 (fr) | 1991-10-11 |
| CA2039385A1 (fr) | 1991-10-05 |
| IT1244783B (it) | 1994-08-08 |
| FR2660744B1 (fr) | 1994-03-11 |
| ITMI910683A0 (it) | 1991-03-14 |
| JPH05263126A (ja) | 1993-10-12 |
| BE1006163A4 (fr) | 1994-05-31 |
| ITMI910683A1 (it) | 1992-09-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 20000201 |