EP1160342A1 - Procédé de mise en sécurisation d'une enceinte de traitement thermique fonctionnant sous atmosphère contrôlée - Google Patents
Procédé de mise en sécurisation d'une enceinte de traitement thermique fonctionnant sous atmosphère contrôlée Download PDFInfo
- Publication number
- EP1160342A1 EP1160342A1 EP01400953A EP01400953A EP1160342A1 EP 1160342 A1 EP1160342 A1 EP 1160342A1 EP 01400953 A EP01400953 A EP 01400953A EP 01400953 A EP01400953 A EP 01400953A EP 1160342 A1 EP1160342 A1 EP 1160342A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- atmosphere
- installation
- chambers
- pressures
- 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.)
- Granted
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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
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- 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
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/562—Details
- C21D9/565—Sealing arrangements
-
- 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
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
-
- 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
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
Definitions
- the present invention relates to a method of setting securing a heat treatment enclosure operating in a controlled atmosphere. It aims more particularly a method of securing an enclosure of treatment operating in a high-grade atmosphere into hydrogen.
- thermo treatment installation such as in particular enclosures encountered in the field of vertical ovens heat treatments or band coatings continuous metal.
- Continuous heat treatment furnaces such as example annealing or coating ovens are composed one or more of the following zones: preheating, heating, holding, slow cooling and cooling fast.
- Each of these zones can heat, maintain the strip temperature or cool it down slopes heating and cooling and precise times defined by the metallurgical treatment cycle corresponding to the material to be treated.
- Increasing the performance of cooling zones requires using an atmosphere with a high hydrogen content, up to 100%, in order to obtain a large increase in exchange coefficient capable of generating slopes of cooling in the range of 80 to 200 ° C / second or more for a 0.8 mm thick strip compatible with treatment cycles to be obtained at the nominal speed of the line.
- the method of securing a heat treatment chamber operating in an atmosphere gas comprising a rapid cooling of a metal strip running at from an upstream chamber to a downstream chamber thanks to a plurality of guide rollers, characterized in that confines said strip within the cooling enclosure fast using at least one balancing sheath pressure and a plurality of airlocks placed between the different chambers, and in that we balance the pressures gas atmospheres between the rooms thanks to the sheaths, by controlling the gas flow rates through said airlocks.
- this installation includes a vertical treatment furnace continuous of a metal strip 1 scrolling from a upstream chamber 2 to a downstream chamber 7 on rollers guidance 3.
- a rapid cooling chamber is represented by 5, it is equipped with cooling devices blowing gas on the strip according to the state of the art (not shown in the figure).
- the rapid cooling chamber 5 is separated from the upstream 2 and downstream 7 chambers by sealing devices 4a and 4b such as airlocks, shutters, roller doors, slats gases or others according to known technologies.
- the latter consists in confining a portion of tape which is intended to undergo a heat treatment, such as in particular a rapid cooling, in a sheath 6.
- This sheath 6 is positioned within the rapid cooling chamber 5 and is filled with a controlled atmosphere with a high content of hydrogen.
- the sheath 6 located in the cooling chamber 5 also ensures communication between rooms 2 and 7 in order to balance the pressures.
- Maintaining the pressure of high-grade chamber 5 in particular hydrogen can be obtained by controlling a leakage rate of this atmosphere through airlocks 4a and 4b.
- the high hydrogen content of this leak can be diluted in the atmosphere of rooms 2 and 7 behaving like an addition of hydrogen for these rooms.
- the pressures and hydrogen contents of chambers 2, 5, 6 and 7 are controlled by sensors and a regulation which adjusts the back-ups in the atmosphere, so to maintain these pressures and the compositions of the different atmospheres of the different rooms at their values required.
- this installation differs from that shown in figure 1 by the fact that the fast cooling chamber 5 and that is subjected to a controlled gas atmosphere, incorporates into the times a rising strand and a falling strand of tape metallic.
- This configuration requires placing the airlocks 4a and 4b at the same altitude so that the gas pressures, upstream and downstream of the airlocks, are identical (same mass of the column gas).
- the cooling equipment is distributed over one or two strands or heating equipment - different or additional cooling are implemented on the second strand of the strip.
- a sheath 6 includes the containment chamber 5 by conforming around this last one envelope, which is connected to both the rooms 2 and 7. This sheath 6 therefore allows communication atmospheres prevailing in these rooms and participates in pressure balancing.
- Part 9 located substantially in the center of the installation and in the upper part of the sheath 8, is particularly reserved for the installation of blowing equipment on the strip (sheaths, control valves ). If the construction allows it, this part can be deleted, room 5 can then be carried out as shown in FIG. 3.
- this installation includes a vertical treatment furnace continuous of a metal strip 1 scrolling from a upstream chamber 2 to a downstream chamber 7 on rollers guidance 3.
- a rapid cooling chamber is represented by 5, it is equipped with cooling devices blowing gas on the strip according to the state of the art (not shown in the figure).
- the rapid cooling chamber 5 is separated from the upstream 2 and downstream 7 chambers by sealing devices 4a and 4b such as airlocks, shutters, roller doors, slats gases or others according to known technologies.
- the airlocks 4a and 4b are arranged horizontally, respectively in upstream and downstream of the rapid cooling chamber 5, and allow to delimit in a direction substantially horizontal, a sheath 6 which connects the adjacent rooms 2 and 7, thereby participating, as for the previous embodiments, the balancing of gas pressures prevailing in these chambers.
- the rising and falling strands of the strip can be brought together in a single room as shown in the figure 3.
- this installation includes means allowing the implementation securing the atmosphere of the cooling chamber high in hydrogen. To this end, this installation has three pressure balancing ducts between the different points of the chambers of the treatment line.
- the chamber with high hydrogen content 5 is equipped with a first balancing sheath 8 in order to maintain the same pressure at the isolation chambers 4a and 4b.
- a second balancing sheath 10 keeps the pressures of the airlock on the same level.
- a third balancing sheath 6 makes it possible to maintain the pressures of the upstream and downstream chambers 2 and 7 at the same level, and allows the free circulation of debits gas between these upstream and downstream areas, without disturbing the regime airlock and chamber pressure under high content hydrogen 5.
- the pressures and content in particular of hydrogen in the different chambers are continuously measured and back-ups of suitable atmospheres are produced in these different chambers to keep pressures and pressures constant hydrogen contents.
- Atmospheric filling points can be carried out in each of the zones or in the pressure balancing ducts, to allow the evacuation of a parasitic flow between two zones which could disturb the atmosphere.
- Extraction of an atmosphere flow from the high chamber hydrogen content can be processed outside the line or be used directly in this line after nitrogen injection to recreate a low content atmosphere into hydrogen. This process makes it possible to limit, in a way important, the total consumption of hydrogen in the line.
- this installation is similar in design to that represented in figure 5 (it has three sheaths pressure balancing), but differs in that it includes means for recycling the atmosphere extracted from the high-content chamber hydrogen.
- First pipes 11a and 11b are connected to points extraction in a high hydrogen content atmosphere, preferably located in the vicinity of airlocks 4a and 4b.
- extraction devices for example fans 12a and 12b, convey said atmosphere and direct it through of second lines 16a and 16b, i.e. towards a rejection zone 13a or 13b outside the installation, either towards a dilution zone 14a, 14b, with a make-up gas mixture (especially nitrogen), in order to obtain an atmosphere whose hydrogen content is lowered to a value corresponding to the hydrogen content of upstream 2 and downstream 7 zones within from which these diluted gas injection points are made at the level of 15a and 15b.
- a make-up gas mixture especially nitrogen
- these gas recycling means can be adapted to collect atmospheric flow at high hydrogen content at different points in chamber 5 or airlocks 4a and 4b, in order to limit the exchange of atmospheres between room 5 and the adjacent rooms 2, 7.
- Airlocks 4a and 4b and their pressure balancing sheath 6 have been extended to make up this equalization chamber 17, the latter being, on the one hand separate from the high hydrogen content 5 through airlocks 19a and 19b, and on the other hand from the upstream chamber 2 through the airlock 18a and from the downstream chamber 7 through the airlock 18b.
- a balancing sheath of pressure 6 joins these upstream and downstream chambers.
- a way extraction, dilution and re-injection of atmosphere such as described in the fifth embodiment, is shown schematically in 12, 13, 14, 15 and 16.
- the volume of chamber 17 makes it possible to absorb variations in pressure between chamber 5 and upstream 2 and downstream chambers 7, and to compensate for these pressure variations using a injection of atmosphere or means of extraction.
- a seventh embodiment of an installation of heat treatment allowing the implementation of the process subject of the invention (see Figure 8) in the case where the chamber in an atmosphere with a high concentration of hydrogen is located at the end of the line and where there is no other downstream chamber.
- This installation is broadly similar to the sixth solution (see the figure 7) and is distinguished from it by the fact that the downstream chamber is removed, the output of band 21 is located in enclosure 2 in order to move it away from the area with strong hydrogen concentration.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Furnace Details (AREA)
Abstract
Description
- durant le fonctionnement nominal ou stabilisé de la ligne,
- durant les changements de vitesse de ligne ou de format de bande ou lors d'incidents tels que par exemple arrêt de ligne ou casse de bande.
- la figure 1 est une vue en coupe et en élévation latérale d'un premier mode de réalisation d'une installation de traitement thermique mettant en oeuvre le procédé objet de l'invention ;
- la figure 2 est une vue en coupe et en élévation latérale d'un deuxième mode de réalisation d'une installation de traitement thermique mettant en oeuvre le procédé objet de l'invention ;
- la figure 3 est une vue en coupe et en élévation latérale d'un troisième mode de réalisation d'une installation de traitement thermique mettant en oeuvre le procédé objet de l'invention ;
- la figure 4 est une vue en coupe et en élévation latérale d'un quatrième mode de réalisation d'une installation de traitement thermique mettant en oeuvre le procédé objet de l'invention ;
- la figure 5 est une vue en coupe et en élévation latérale d'un cinquième mode de réalisation d'une installation de traitement thermique mettant en oeuvre le procédé objet de l'invention ;
- la figure 6 est une vue en coupe et en élévation latérale d'un sixième mode de réalisation d'une installation de traitement thermique mettant en oeuvre le procédé objet de l'invention ;
- la figure 7 est une vue en coupe et en élévation latérale d'un septième mode de réalisation d'une installation de traitement thermique mettant en oeuvre le procédé objet de l'invention et
- la figure 8 est une vue similaire à la figure 7 représentant une variante de l'invention.
- la récupération des débits soutirés des différents points des zones,
- leur dilution à une basse teneur en hydrogène pour leur réintroduction dans les autres zones de l'installation.
- la séparation d'une chambre à haute teneur en hydrogène des chambres adjacentes permet de limiter les circulations ou pollutions d'atmosphères entre ces différentes chambres par la mise en place de gaines d'équilibrage de pression ;
- la récupération des débits extraits en différents points de l'installation lors des variations de régime de la ligne ou lors des incidents de production, permet de ré-injecter ces débits dans la ligne, limitant ainsi la consommation des différents types d'atmosphères de l'installation ;
- la possibilité, en raison du meilleur contrôle de l'isolement de la chambre sous haute teneur en hydrogène, d'utiliser des pourcentages de H2 supérieurs à 50 %, de préférence 75 %, permettant ainsi d'améliorer les coefficients d'échanges et d'obtenir des pentes de refroidissement non encore atteintes par les installations connues de l'état antérieur de la technique ;
- la réduction du coût de traitement de la bande obtenue par la réduction de la consommation d'hydrogène de la ligne ;
- la compensation des différences de pression dans les chambres lors des incidents de production conduit à une réduction des pollutions des atmosphères des différentes chambres de la ligne ;
- la meilleure qualité du produit traité par la conservation des coefficients d'échange gaz / bandes dans les différentes chambres provient de la conservation des concentrations en hydrogène des différentes zones de la ligne ;
- la suppression de la centrale de mélange d'atmosphère remplacée par des unités de mélange situées sur l'installation conduit à la recirculation des débits à haute teneur en hydrogène extraits des dispositifs d'étanchéité de la zone 5, et à leur dilution avant ré-injection dans les différentes zones de l'installation.
Claims (10)
- Procédé de mise en sécurisation d'une enceinte de traitement thermique fonctionnant sous atmosphère de gaz, ladite enceinte comprenant une chambre de refroidissement rapide (5) d'une bande métallique (1) défilant à partir d'une chambre amont (2) vers une chambre aval (7) grâce à une pluralité de rouleaux de guidage (3), caractérisé en ce qu'on confine ladite bande (1) au sein de l'enceinte de refroidissement rapide (5) à l'aide d'au moins une gaine (6, 8, 10) d'équilibrage de pression et d'une pluralité de sas (4a, 4b, 16a, 16b, 18a, 18b) placés entre les différentes chambres, et en ce qu'on équilibre les pressions des atmosphères de gaz entre les chambres (2, 5, 7) grâce aux gaines (6, 8, 10), en contrôlant les débits de gaz au travers desdits sas (4a, 4b, 16a, 16b, 18a, 18b).
- Procédé selon la revendication 1, caractérisé en ce qu'on procède à un recyclage de l'atmosphère extraite de la chambre (5) à haute teneur en hydrogène, au niveau de points d'extraction situés au voisinage des sas (4a, 4b, 16a, 16b, 18a, 18b), des moyens de recyclage (12a, 12b), véhiculant ladite atmosphère et la dirigeant par le biais de conduites (11a, 11b, 16a, 16b) vers une zone de rejet (13a, 13b) à l'extérieur de l'installation.
- Procédé selon la revendication 1, caractérisé en ce qu'on procède à un recyclage de l'atmosphère extraite de la chambre (5) à haute teneur en hydrogène, au niveau de points d'extraction situés au voisinage des sas (4a, 4b, 16a, 16b, 18a, 18b), des moyens de recyclage (12a, 12b) véhiculant ladite atmosphère et la dirigeant par le biais de conduites (11a, 11b, 16a, 16b) vers une zone de dilution (14a, 14b) avec un mélange d'appoint de gaz afin d'obtenir une atmosphère dont la teneur notamment en hydrogène est abaissée à valeur correspondante à la teneur en hydrogène des zones amont (2) et aval (7).
- Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'on injecte les débits récupérés en différents points des zones amont (2) ou aval (7) de l'installation, afin de maintenir leurs pressions constantes et limiter les débits d'appoint d'atmosphère à injecter dans l'installation.
- Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'on collecte le débit d'atmosphère à haute teneur en hydrogène en différents points de la chambre (5) ou des sas (4a, 4b, 16a, 16b, 18a, 18b) afin de limiter les échanges d'atmosphères entre la chambre (5) et les chambres adjacentes (2, 7).
- Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'on contrôle les pressions et les teneurs en hydrogène des chambres (2, 5, 6 et 7) et en ce que l'on ajuste les appoints en atmosphère, de manière à maintenir ces pressions et les compositions des différentes atmosphères desdites chambres à leurs valeurs requises.
- Installation pour la mise en oeuvre du procédé selon l'une quelconque des revendications 1 à 6, caractérisée en ce qu'elle comporte une gaine d'équilibrage de pression (6) entre l'entrée et la sortie de la chambre de refroidissement rapide (5).
- Installation selon la revendication 7, caractérisée en ce qu'elle comporte une gaine d'équilibrage de pression (8) entre le sas (4a) situé en entrée de la chambre de refroidissement rapide (5) et le sas (4b) situé en sortie de ladite chambre (5).
- Installation selon l'une des revendications 7 ou 8, caractérisée en ce qu'elle comporte une gaine d'équilibrage (10) entre les sas (4a, 4b).
- Installation selon l'une quelconque des revendications 7 à 9, caractérisée en ce qu'elle comporte des capteurs pour contrôler les pressions et les teneurs en hydrogène des chambres (2, 5, 6 et 7) et un dispositif de régulation pour ajuster les appoints en atmosphère, de manière à maintenir ces pressions et les compositions des différentes atmosphères des différentes chambres à leurs valeurs requises.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0006708 | 2000-05-25 | ||
FR0006708A FR2809418B1 (fr) | 2000-05-25 | 2000-05-25 | Procede de mise en securisation d'une enceinte de traitement thermique fonctionnant sous atmosphere controlee |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1160342A1 true EP1160342A1 (fr) | 2001-12-05 |
EP1160342B1 EP1160342B1 (fr) | 2005-10-19 |
Family
ID=8850619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01400953A Expired - Lifetime EP1160342B1 (fr) | 2000-05-25 | 2001-04-12 | Procédé de mise en sécurisation d'une enceinte de traitement thermique fonctionnant sous atmosphère contrôlée |
Country Status (8)
Country | Link |
---|---|
US (1) | US6547898B2 (fr) |
EP (1) | EP1160342B1 (fr) |
JP (1) | JP4988096B2 (fr) |
KR (1) | KR100756589B1 (fr) |
CN (1) | CN1249256C (fr) |
DE (2) | DE60114085T2 (fr) |
ES (1) | ES2165342T3 (fr) |
FR (1) | FR2809418B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1371738A1 (fr) * | 2002-06-14 | 2003-12-17 | CENTRE DE RECHERCHES METALLURGIQUES-CENTRUM VOOR RESEARCH IN DE METALLURGIE Assoc. sans but lucratif-Ver. zonder winstoogmerk | Gestion des flux de gaz dans une section réactive |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2903122B1 (fr) * | 2006-06-30 | 2008-09-12 | Stein Heurtey | Dispositif de securisation d'un four equipe d'un chauffage et d'un refroidissement rapides fonctionnant sous atmosphere controlee. |
CN101354090B (zh) * | 2007-07-25 | 2012-08-22 | 阿旺泰克西班牙公司 | 用于液化气体调节组件的阀 |
FR3014447B1 (fr) | 2013-12-05 | 2016-02-05 | Fives Stein | Procede et installation de traitement thermique en continu d'une bande d'acier |
ES2749005T3 (es) * | 2014-03-03 | 2020-03-18 | Acciai Speciali Terni Spa | Aparato para el tratamiento de una tira de metal en una planta de recocido vertical |
KR101717960B1 (ko) | 2016-03-03 | 2017-03-20 | (주)나우이엔씨 | 강판의 연속 열처리로용 분위기 가스 실링 장치 |
BR112018070349B1 (pt) | 2016-04-05 | 2021-10-19 | Nippon Steel Corporation | Equipamento de resfriamento para um forno de recozimento contínuo |
KR102557715B1 (ko) | 2016-05-10 | 2023-07-20 | 유나이테드 스테이츠 스틸 코포레이션 | 고강도 철강 제품 및 이의 제조를 위한 소둔 공정 |
US11560606B2 (en) | 2016-05-10 | 2023-01-24 | United States Steel Corporation | Methods of producing continuously cast hot rolled high strength steel sheet products |
US11993823B2 (en) | 2016-05-10 | 2024-05-28 | United States Steel Corporation | High strength annealed steel products and annealing processes for making the same |
CN113825846A (zh) | 2019-05-07 | 2021-12-21 | 美国钢铁公司 | 生产连续铸造热轧高强度钢片产品的方法 |
BR112022001335A2 (pt) | 2019-08-07 | 2022-03-22 | United States Steel Corp | Produto de chapa de aço de têmpera e separação, e, método para produzir produto de chapa de aço de têmpera e separação |
BR112022003136A2 (pt) | 2019-08-19 | 2022-05-17 | United States Steel Corp | Produto de chapa de aço laminado de alta resistência, e, método para produzir um produto de chapa de aço laminado de alta resistência |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1987577A (en) * | 1931-11-25 | 1935-01-08 | Gen Electric | Apparatus for the thermic treatment of metal wires, filaments, bands, or the like |
US3158507A (en) * | 1960-01-11 | 1964-11-24 | Continental Can Co | Floating roller seal |
EP0311030A1 (fr) * | 1987-10-07 | 1989-04-12 | Linde Aktiengesellschaft | Procédé de recuit d'articles métalliques dans un four continu |
EP0795616A1 (fr) * | 1996-03-13 | 1997-09-17 | STEIN HEURTEY, Société Anonyme: | Procédé de traitement thermique en continu de bandes métalliques dans des atmosphères de nature différente |
FR2769696A1 (fr) * | 1997-10-15 | 1999-04-16 | Stein Heurtey | Systeme de securite pour fours a refroidissement rapide de bandes metalliques |
WO1999050464A1 (fr) * | 1998-03-26 | 1999-10-07 | Kawasaki Steel Corporation | Four de traitement thermique en continu, et procede de regulation du gaz atmospherique et procede de refroidissement dans un four de traitement thermique en continu |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2534973A (en) * | 1949-03-02 | 1950-12-19 | Gen Electric | Cooling apparatus |
JP2520507B2 (ja) * | 1990-07-12 | 1996-07-31 | 新日本製鐵株式会社 | ステンレス鋼帯の連続光輝焼鈍方法 |
JP4156065B2 (ja) * | 1998-02-24 | 2008-09-24 | 日新製鋼株式会社 | 金属帯用連続還元性雰囲気焼鈍装置および方法 |
JP3572983B2 (ja) * | 1998-03-26 | 2004-10-06 | Jfeスチール株式会社 | 連続熱処理炉ならびに連続熱処理炉における冷却方法 |
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2000
- 2000-05-25 FR FR0006708A patent/FR2809418B1/fr not_active Expired - Lifetime
-
2001
- 2001-04-12 ES ES01400953T patent/ES2165342T3/es not_active Expired - Lifetime
- 2001-04-12 EP EP01400953A patent/EP1160342B1/fr not_active Expired - Lifetime
- 2001-04-12 DE DE60114085T patent/DE60114085T2/de not_active Expired - Lifetime
- 2001-04-12 DE DE1160342T patent/DE1160342T1/de active Pending
- 2001-05-15 US US09/854,520 patent/US6547898B2/en not_active Expired - Lifetime
- 2001-05-24 KR KR1020010028595A patent/KR100756589B1/ko not_active IP Right Cessation
- 2001-05-25 CN CNB01118972XA patent/CN1249256C/zh not_active Expired - Fee Related
- 2001-05-25 JP JP2001156293A patent/JP4988096B2/ja not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1987577A (en) * | 1931-11-25 | 1935-01-08 | Gen Electric | Apparatus for the thermic treatment of metal wires, filaments, bands, or the like |
US3158507A (en) * | 1960-01-11 | 1964-11-24 | Continental Can Co | Floating roller seal |
EP0311030A1 (fr) * | 1987-10-07 | 1989-04-12 | Linde Aktiengesellschaft | Procédé de recuit d'articles métalliques dans un four continu |
EP0795616A1 (fr) * | 1996-03-13 | 1997-09-17 | STEIN HEURTEY, Société Anonyme: | Procédé de traitement thermique en continu de bandes métalliques dans des atmosphères de nature différente |
FR2769696A1 (fr) * | 1997-10-15 | 1999-04-16 | Stein Heurtey | Systeme de securite pour fours a refroidissement rapide de bandes metalliques |
WO1999050464A1 (fr) * | 1998-03-26 | 1999-10-07 | Kawasaki Steel Corporation | Four de traitement thermique en continu, et procede de regulation du gaz atmospherique et procede de refroidissement dans un four de traitement thermique en continu |
EP1069193A1 (fr) * | 1998-03-26 | 2001-01-17 | Kawasaki Steel Corporation | Four de traitement thermique en continu, et procede de regulation du gaz atmospherique et procede de refroidissement dans un four de traitement thermique en continu |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1371738A1 (fr) * | 2002-06-14 | 2003-12-17 | CENTRE DE RECHERCHES METALLURGIQUES-CENTRUM VOOR RESEARCH IN DE METALLURGIE Assoc. sans but lucratif-Ver. zonder winstoogmerk | Gestion des flux de gaz dans une section réactive |
BE1014880A4 (fr) * | 2002-06-14 | 2004-05-04 | Ct Rech Metallurgiques Asbl | Gestion des flux de gaz dans une section reactive. |
Also Published As
Publication number | Publication date |
---|---|
KR20010107710A (ko) | 2001-12-07 |
DE60114085T2 (de) | 2006-07-13 |
CN1249256C (zh) | 2006-04-05 |
ES2165342T3 (es) | 2006-03-01 |
FR2809418A1 (fr) | 2001-11-30 |
EP1160342B1 (fr) | 2005-10-19 |
US6547898B2 (en) | 2003-04-15 |
ES2165342T1 (es) | 2002-03-16 |
JP2002003954A (ja) | 2002-01-09 |
US20010045024A1 (en) | 2001-11-29 |
JP4988096B2 (ja) | 2012-08-01 |
CN1327144A (zh) | 2001-12-19 |
DE1160342T1 (de) | 2002-05-23 |
DE60114085D1 (de) | 2005-11-24 |
KR100756589B1 (ko) | 2007-09-10 |
FR2809418B1 (fr) | 2003-05-16 |
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