EP0056917B1 - Device at the entrance and exit of sheet metal cooling machines - Google Patents

Device at the entrance and exit of sheet metal cooling machines Download PDF

Info

Publication number
EP0056917B1
EP0056917B1 EP81401944A EP81401944A EP0056917B1 EP 0056917 B1 EP0056917 B1 EP 0056917B1 EP 81401944 A EP81401944 A EP 81401944A EP 81401944 A EP81401944 A EP 81401944A EP 0056917 B1 EP0056917 B1 EP 0056917B1
Authority
EP
European Patent Office
Prior art keywords
machine
arrangement according
tank
upper frame
fluid
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
EP81401944A
Other languages
German (de)
French (fr)
Other versions
EP0056917A1 (en
Inventor
Stéphane Viannay
Alfred Germain
Jack Sebbah
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.)
USINOR SA
Original Assignee
Union Siderurgique du Nord et de lEst de France SA USINOR
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 Union Siderurgique du Nord et de lEst de France SA USINOR filed Critical Union Siderurgique du Nord et de lEst de France SA USINOR
Publication of EP0056917A1 publication Critical patent/EP0056917A1/en
Application granted granted Critical
Publication of EP0056917B1 publication Critical patent/EP0056917B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54Furnaces for treating strips or wire
    • C21D9/56Continuous furnaces for strip or wire
    • C21D9/573Continuous furnaces for strip or wire with cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B45/00Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203Cooling
    • B21B45/0209Cooling devices, e.g. using gaseous coolants
    • B21B45/0215Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates

Definitions

  • the present invention relates to machines for treating and in particular cooling sheets or other similar products, of the type comprising a lower frame and an upper frame in which are mounted sets of rollers for driving and guiding the sheet, operating in pairs. , the two frames delimiting an enclosure in which a treatment fluid circulates, this enclosure being closed at its two ends by movable flaps extending between the upper frame and the lower frame.
  • Such a machine is described in particular in document FR-A-2 413 141.
  • the purpose of this invention is therefore to provide an effective solution to this sealing problem.
  • a machine for cooling sheets or the like of the type comprising an upper frame and a lower frame each comprising two side walls connected by a delimiting envelope.
  • an enclosure in which a coolant circulates this enclosure being closed at its two ends by movable flaps extending between the upper frame and the lower frame, characterized in that it is provided at each end of the machine and outside the enclosure, on the one hand, a coolant recovery tank, carried by the lower frame and extending over the entire width of the machine, and on the other hand, means carried by the upper frame and arranged to project towards the interior of the machine a jet of fluid, directed against the current of the liquid tending to leave said machine.
  • a plate cooling machine comprising an upper frame 10 and a lower frame 20.
  • Each frame has side walls 11, 21 connected by metal envelopes 12, 22 comprising roughly flat parts 12a, 22a parallel to the sheet to spend in the machine and the curved portions 12 b, 22 b around the drive and guide rollers 13, 23.
  • the metal sheaths delimit a chamber in which may circulate a cooling liquid, the enclosure being for this purpose connected to inlet and outlet conduits for this liquid, the conduits 14, 24 shown in the drawing being in this case the outlet conduits.
  • the entry end of the machine is closed by one or more rigid flaps 30 moving approximately vertically, that is to say perpendicular to the direction of passage sheet metal.
  • flaps 30 moving approximately vertically, that is to say perpendicular to the direction of passage sheet metal.
  • a box beam 32 constituting a fluid reservoir is disposed between the two side walls 11 of the upper frame.
  • This beam contributes to the rigidity of the machine and it is connected at its upper part to a source of fluid which, in the example shown, may be water.
  • the lower wall 33 of this reservoir located in the extension of the flat horizontal wall 12a of the upper frame and fixed to this wall by any suitable means, delimits a slot 34 which is inclined relative to the horizontal so as to direct a blade of thin water towards the interior of the machine.
  • the inclination of the slot relative to the horizontal is between 10 and 20 °, preferably of the order of 15 °.
  • the slot has a thickness which can be of the order of 1 to 3 mm.
  • the box 32 has a wall 36 inclined, at 45 ° for example, to ensure possible guiding of the product entering the machine.
  • a recovery tank 40 is provided at the lower part of the machine, this tank being delimited by a box connecting the two side walls 21 of the lower frame of the machine and the upper wall of which is here constituted by the horizontal wall 22a of the envelope.
  • This box has an opening 41 of relatively large dimension, extending over the entire width of the machine and also extending to the vicinity of the shutter 30.
  • the opening 41 is preferably covered by a grid 41a.
  • this box is connected to conduits 42 for evacuating the recovered liquid.
  • the water supply to the upper tank 32 can be shut off.
  • the residual leaks which can occur if the screen formed by the flaps 30 is not strictly sealed are collected in the tank 40 and evacuated.
  • the reservoir 32 When a sheet has to enter the machine, the reservoir 32 is supplied and projects a roughly flat water jet whose speed can be of the order of 4 to 6 m per second, this jet being directed towards the inside the machine at an angle, which, as above, can be of the order of 10 to 20 °.
  • this jet of water tends to oppose the outward flow of the coolant contained inside the machine. Furthermore, having a certain vertical component, it folds down this liquid which is thus recovered more efficiently in the tank 40.
  • the jet continues to fulfill this same function but the water is then evacuated towards the sides of the machine, this function being further improved by the orientation of the deflectors 35.
  • the water jet projected by the reservoir 32 fulfills the same function as above and s opposes the flow of the liquid contained in the machine by folding it towards the recovery tank.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Paper (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

La présente invention concerne les machines de traitement et notamment de refroidissement de tôles ou autres produits analogues, du type comprenant un bâti inférieur et un bâti supérieur dans lesquels sont montés des jeux de rouleaux d'entraînement et de guidage de la tôle, fonctionnant par paires, les deux bâtis délimitant une enceinte dans laquelle circule un fluide de traitement, cette enceinte étant obturée à ses deux extrémités par des volets mobiles s'étendant entre le bâti supérieur et le bâti inférieur. Une telle machine est décrite notamment dans le document FR-A-2 413 141.The present invention relates to machines for treating and in particular cooling sheets or other similar products, of the type comprising a lower frame and an upper frame in which are mounted sets of rollers for driving and guiding the sheet, operating in pairs. , the two frames delimiting an enclosure in which a treatment fluid circulates, this enclosure being closed at its two ends by movable flaps extending between the upper frame and the lower frame. Such a machine is described in particular in document FR-A-2 413 141.

Dans une telle machine, il est souhaitable de limiter ou d'éliminer les fuites de liquide de refroidissement qui ne manquent pas de se produire dans diverses circonstances aux extrémités de la machine. En particulier des fuites résiduelles se produisent même lorsque la machine est entièrement fermée. Des fuites plus importantes se produisent également lors de l'ouverture des volets d'entrée et de sortie, immédiatement avant l'entrée de la tôle dans la machine et immédiatement avant la sortie de cette tôle. Enfin, pendant que la machine est traversée par la tôle, des fuites se produisent principalement au-dessus de la tôle et de part et d'autre de cette dernière.In such a machine, it is desirable to limit or eliminate the coolant leaks which do not fail to occur in various circumstances at the ends of the machine. In particular, residual leaks occur even when the machine is fully closed. Larger leaks also occur when opening the inlet and outlet flaps, immediately before the sheet metal enters the machine and immediately before the sheet metal comes out. Finally, while the machine is traversed by the sheet, leaks mainly occur above the sheet and on either side of the latter.

Il est important de pouvoir éliminer de telles fuites, d'une part, pour que les abords immédiats de la machine demeurent aussi secs que possible et, d'autre part, pour éviter que la présence d'une certaine quantité d'eau à la surface supérieure de la tôle ne provoque un gradient thermique entre les surfaces inférieure et supérieure de la tôle, qui dans certains cas, peut être suffisant pour provoquer une déformation de cette tôle.It is important to be able to eliminate such leaks, on the one hand, so that the immediate surroundings of the machine remain as dry as possible and, on the other hand, to avoid that the presence of a certain amount of water at the upper surface of the sheet does not cause a thermal gradient between the lower and upper surfaces of the sheet, which in some cases may be sufficient to cause deformation of this sheet.

On connaît également (FR-A-2 231441) un appareil pour le refroidissement de barres, tiges ou fils métalliques comprenant un simple tube dans lequel débouchent des conduits d'amenée d'eau et qui porte au voisinage de ses extrémités- ouvertes - des buses projetant un jet d'eau formant écran et destiné à maintenir l'eau de refroidissement à l'intérieur du tube. Cette eau est évacuée par des fentes ménagées dans le fond du tube. Cet agencement sommaire ne peut convenir dans une machine du type défini précédemment.There is also known (FR-A-2 231441) an apparatus for cooling bars, rods or metal wires comprising a simple tube into which open water supply conduits and which carries near its open ends nozzles projecting a water jet forming a screen and intended to keep the cooling water inside the tube. This water is discharged through slots in the bottom of the tube. This summary arrangement cannot be suitable in a machine of the type defined above.

Le but de cette invention est donc d'apporter une solution efficace à ce problème d'étanchéité.The purpose of this invention is therefore to provide an effective solution to this sealing problem.

A cet effet, elle a pour objet un agencement des extrémités d'entrée et de sortie d'une machine de refroidissement de tôles ou produits analogues, du type comprenant un bâti supérieur et un bâti inférieur comportant chacun deux parois latérales reliées par une enveloppe délimitant une enceinte dans laquelle circule un liquide de refroidissement, cette enceinte étant obturée à ses deux extrémités par des volets mobiles s'étendant entre le bâti supérieur et le bâti infé rieur, caractérisé en ce qu'il est prévu à chaque extrémité de la machine et à l'extérieur de l'enceinte, d'une part, un bac de récupération du liquide de refroidissement, porté par le bâti inférieur et s'étendant sur toute la largeur de la machine, et d'autre part, des moyens portés par le bâti supérieur et agencés pour projeter vers l'intérieur de la machine un jet de fluide, dirigé à contre courant du liquide tendant à sortir de ladite machine.To this end, it relates to an arrangement of the inlet and outlet ends of a machine for cooling sheets or the like, of the type comprising an upper frame and a lower frame each comprising two side walls connected by a delimiting envelope. an enclosure in which a coolant circulates, this enclosure being closed at its two ends by movable flaps extending between the upper frame and the lower frame, characterized in that it is provided at each end of the machine and outside the enclosure, on the one hand, a coolant recovery tank, carried by the lower frame and extending over the entire width of the machine, and on the other hand, means carried by the upper frame and arranged to project towards the interior of the machine a jet of fluid, directed against the current of the liquid tending to leave said machine.

Suivant d'autres caractéristiques:

  • - le bac de récupération constitue simultanément un caisson qui relie les deux parois latérales du bâti inférieur;
  • - lesdits moyens portés par le bâti supérieur comprennent un réservoir relié à une source de fluide et comportant à sa partie inférieure au moins un orifice de projection de ce fluide;
  • - le réservoir constitue simultanément un caisson qui relie les deux parois latérales du bâti supérieur;
  • - le réservoir comporte dans sa paroi inférieure une fente inclinée vers le bas depuis l'intérieur du réservoir et par laquelle est projeté le fluide. De préférence, cette fente est inclinée sous un angle de 10 à 20° par rapport à l'horizontale;
  • - le fluide projeté est de l'eau.
According to other characteristics:
  • - The recovery tank simultaneously constitutes a box which connects the two side walls of the lower frame;
  • - Said means carried by the upper frame comprise a reservoir connected to a source of fluid and comprising at its lower part at least one orifice for projecting this fluid;
  • - The tank simultaneously constitutes a box which connects the two side walls of the upper frame;
  • - The reservoir has in its lower wall a slot inclined downward from the interior of the reservoir and through which the fluid is projected. Preferably, this slot is inclined at an angle of 10 to 20 ° relative to the horizontal;
  • - the sprayed fluid is water.

L'invention va être décrite plus en détail ci-dessous en se référant au dessin annexé donné uniquement à titre d'exemple et dont:

  • la fig. 1 est une vue en coupe longitudinale d'une extrémité d'entrée d'une machine de refroidissement suivant l'invention;
  • la fig. 2 est une vue de dessus, suivant la ligne 2-2 de la fig. 1.
The invention will be described in more detail below with reference to the appended drawing given solely by way of example and of which:
  • fig. 1 is a longitudinal section view of an inlet end of a cooling machine according to the invention;
  • fig. 2 is a top view, along line 2-2 of FIG. 1.

On voit sur la fig. 1 l'extrémité d'entrée d'une machine de refroidissement de tôles comprenant un bâti supérieur 10 et un bâti inférieur 20. Chaque bâti comporte des parois latérales 11, 21 reliées par des enveloppes métalliques 12, 22 comportant des parties à peu près planes 12a, 22a parallèles à la tôle devant passer dans la machine et des parties incurvées 12b, 22b qui entourent des rouleaux d'entraînement et de guidage 13, 23. Les enveloppes métalliques délimitent une enceinte dans laquelle peut circuler un liquide de refroidissement, l'enceinte étant à cet effet reliée à des conduits d'entrée et de sortie de ce liquide, les conduits 14, 24 représentés sur le dessin étant en l'occurence des conduits de sortie.We see in fig. 1 the inlet end of a plate cooling machine comprising an upper frame 10 and a lower frame 20. Each frame has side walls 11, 21 connected by metal envelopes 12, 22 comprising roughly flat parts 12a, 22a parallel to the sheet to spend in the machine and the curved portions 12 b, 22 b around the drive and guide rollers 13, 23. the metal sheaths delimit a chamber in which may circulate a cooling liquid, the enclosure being for this purpose connected to inlet and outlet conduits for this liquid, the conduits 14, 24 shown in the drawing being in this case the outlet conduits.

Seule l'extrémité d'entrée de la machine a été représentée, mais il est bien entendu que l'extrémité de sortie de cette machine est, au moins, pour l'essentiel, réalisée de la même façon.Only the inlet end of the machine has been shown, but it is understood that the outlet end of this machine is, at least, for the most part, carried out in the same way.

L'extrémité d'entrée de la machine est obturée par un ou plusieurs volets rigides 30 se déplaçant à peu près verticalement, c'est à dire perpendiculairement à la direction de passage de la tôle. Ces volets guidés par rapport au bâti supérieur coopèrent par leur bord libre avec le bâti inférieur et sont actionnés au moyen de vérins 31.The entry end of the machine is closed by one or more rigid flaps 30 moving approximately vertically, that is to say perpendicular to the direction of passage sheet metal. These flaps guided relative to the upper frame cooperate by their free edge with the lower frame and are actuated by means of jacks 31.

Une poutre en caisson 32 constituant un réservoir de fluide est disposée entre les deux parois latérales 11 du bâti supérieur. Cette poutre contribue à la rigidité de la machine et elle est reliée à sa partie supérieure à une source de fluide qui, dans l'exemple représenté, peut être de l'eau. La paroi inférieure 33 de ce réservoir, située dans la prolongement de la paroi horizontale plane 12a du bâti supérieur et fixée sur cette paroi par tous moyens convenables, délimite une fente 34 qui est inclinée par rapport à l'horizontale de façon à diriger une lame d'eau de faible épaisseur en direction de l'intérieur de la machine. L'inclinaison de la fente par rapport à l'horizontale est comprise entre 10 et 20°, de préférence de l'ordre de 15°. La fente a une épaisseur qui peut être de l'ordre de 1 à 3 mm. Elle est subdivisée longitudinalement en un certain nombre de tronçons, par des voiles ou cloisons intermédiaires 35 formant entretoises entre les deux parois de la fente. De préférence, le caisson 32 comporte une paroi 36 inclinée, à 45° par exemple, pour assurer un éventuel guidage du produit pénétrant dans la machine.A box beam 32 constituting a fluid reservoir is disposed between the two side walls 11 of the upper frame. This beam contributes to the rigidity of the machine and it is connected at its upper part to a source of fluid which, in the example shown, may be water. The lower wall 33 of this reservoir, located in the extension of the flat horizontal wall 12a of the upper frame and fixed to this wall by any suitable means, delimits a slot 34 which is inclined relative to the horizontal so as to direct a blade of thin water towards the interior of the machine. The inclination of the slot relative to the horizontal is between 10 and 20 °, preferably of the order of 15 °. The slot has a thickness which can be of the order of 1 to 3 mm. It is subdivided longitudinally into a certain number of sections, by intermediate webs or partitions 35 forming spacers between the two walls of the slot. Preferably, the box 32 has a wall 36 inclined, at 45 ° for example, to ensure possible guiding of the product entering the machine.

Un bac de récupération 40 est prévu à la partie inférieure de la machine, ce bac étant délimité par un caisson reliant les deux parois latérales 21 du bâti inférieur de la machine et dont la paroi supérieure est ici constituée par la paroi horizontale 22a de l'enveloppe. Ce caisson comporte une ouverture 41 de dimension relativement importante, s'étendant sur toute la largeur de la machine et s'étendant également jusqu'au voisinage du volet obturateur 30. L'ouverture 41 est de préférence recouverte par une grille 41a. A sa partie inférieure, ce caisson est relié à des conduits 42 d'évacuation du liquide récupéré.A recovery tank 40 is provided at the lower part of the machine, this tank being delimited by a box connecting the two side walls 21 of the lower frame of the machine and the upper wall of which is here constituted by the horizontal wall 22a of the envelope. This box has an opening 41 of relatively large dimension, extending over the entire width of the machine and also extending to the vicinity of the shutter 30. The opening 41 is preferably covered by a grid 41a. At its lower part, this box is connected to conduits 42 for evacuating the recovered liquid.

La machine étant fermée et pleine de liquide de refroidissement, l'alimentation en eau du réservoir supérieur 32 peut être coupée. Les fuites résiduelles qui peuvent se produire si l'écran formé par les volets 30 n'est pas rigoureusement étanche sont récupérées dans le bac 40 et évacuées.With the machine closed and full of coolant, the water supply to the upper tank 32 can be shut off. The residual leaks which can occur if the screen formed by the flaps 30 is not strictly sealed are collected in the tank 40 and evacuated.

Lorsqu'une tôle doit pénétrer dans la machine, le réservoir 32 est alimenté et projette un jet d'eau à peu près plan dont la vitesse peut être de l'ordre de 4 à 6 m par seconde, ce jet étant dirigé vers l'intérieur de la machine sous un angle, qui, comme idinque ci-dessus peut être de l'ordre de 10 à 20°. Lorsque les volets obturateurs 30 se soulèvent pour laisser passer la tôle, ce jet d'eau tend à s'opposer à l'écoulement, vers l'extérieur, du liquide de refroidissement contenu à l'intérieur de la machine. Par ailleurs, ayant une certaine composante verticale, il rabat vers le bas ce liquide qui est ainsi récupéré de façon plus efficace dans le bac 40.When a sheet has to enter the machine, the reservoir 32 is supplied and projects a roughly flat water jet whose speed can be of the order of 4 to 6 m per second, this jet being directed towards the inside the machine at an angle, which, as above, can be of the order of 10 to 20 °. When the shutters 30 are raised to let the sheet pass, this jet of water tends to oppose the outward flow of the coolant contained inside the machine. Furthermore, having a certain vertical component, it folds down this liquid which is thus recovered more efficiently in the tank 40.

Pendant le passage de la tôle, le jet continue à remplir cette même fonction mais l'eau est alors évacuée vers les côtés de la machine, cette fonction étant encore améliorée grâce à l'orientation des déflecteurs 35.During the passage of the sheet, the jet continues to fulfill this same function but the water is then evacuated towards the sides of the machine, this function being further improved by the orientation of the deflectors 35.

De part et d'autre de la tôle, sur la largeur de l'orifice d'entrée qui n'est pas obturée par les volets, le jet d'eau projeté par le réservoir 32 remplit la même fonction qui ci-dessus et s'oppose à l'écoulement du liquide contenu dans la machine en le rabattant vers le bac de récupération.On either side of the sheet, over the width of the inlet orifice which is not blocked by the flaps, the water jet projected by the reservoir 32 fulfills the same function as above and s opposes the flow of the liquid contained in the machine by folding it towards the recovery tank.

Bien entendu, des fonctions analogues sont remplies à l'extrémité de sortie de la machine, de sorte que les objectifs recherchés sont bien atteints, à savoir: éliminer toutes les fuites aux extrémités d'entrée et de sortie de cette machine et éviter la présence d'eau à la surface supérieure de la tôle. Il est à noter également que ces résultants sont obtenus par des moyens très simples, très fiables, peut coûteux et particulièrement peu encombrants.Of course, similar functions are fulfilled at the outlet end of the machine, so that the desired objectives are well achieved, namely: eliminating all leaks at the inlet and outlet ends of this machine and avoiding the presence of water on the upper surface of the sheet. It should also be noted that these results are obtained by very simple, very reliable, inexpensive and particularly space-saving means.

Claims (7)

1. Arrangement of the input and output ends of a machine for cooling metal sheets or like products, of the type comprising an upper frame (10) and a lower frame (20), each of said frames comprising two lateral walls (11, 21) interconnected by a case (12, 22) defining an enclosure in which liquid circulates, said enclosure being closed at its two ends by movable flaps (30) extending between the upper frame and the lower frame, characterized in that there are provided, at each end of the machine and outside the enclosure, on one hand, a sump (40) for collecting the cooling liquid, carried bythe lowerframe and extending throughout the width of the machine, and, in the other hand, means (32-34) carried by the upper frame and arranged to project toward the inside of the machine a jet of fluid which is directed against the cooling liquid which tends to stream out from the machine.
2. Arrangement according to claim 1, characterized in that the collecting sump (40) also constitutes a box-structure which interconnects the two lateral walls of the lowerframe.
3. Arrangement according to claim 1, characterized in that the upper wall of the sump (40) is defined by a planar portion (22b) of the case (22) of the lower frame.
4. Arrangement according to claim 1, characterized in that said means carried by the upper frame comprise a tank (32) connected to a source of fluid and having in its lower part at least one aperture (34) for projecting said fluid.
5. Arrangement according to claim 4, characterized in that the tank (32) also constitutes a box-structure which interconnects the two lateral walls of the upperframe.
6. Arrangement according to claim 4, characterized in that the tank comprises in the lower wall thereof a slot (34) which is downwardly inclined from the inside of the tank and through which slotthefluid is projected.
7. Arrangement according to any one of the preceding claims, characterized in that the upper opening of the collecting sump (40) is covered with a grate (41a) or the like.
EP81401944A 1981-01-09 1981-12-07 Device at the entrance and exit of sheet metal cooling machines Expired EP0056917B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8100287A FR2497694A1 (en) 1981-01-09 1981-01-09 ARRANGEMENT OF ENTRY AND EXIT LEVELS OF A COOLING MACHINE OF SHEETS
FR8100287 1981-01-09

Publications (2)

Publication Number Publication Date
EP0056917A1 EP0056917A1 (en) 1982-08-04
EP0056917B1 true EP0056917B1 (en) 1984-10-10

Family

ID=9253988

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81401944A Expired EP0056917B1 (en) 1981-01-09 1981-12-07 Device at the entrance and exit of sheet metal cooling machines

Country Status (6)

Country Link
US (1) US4445525A (en)
EP (1) EP0056917B1 (en)
JP (1) JPS57137429A (en)
DE (1) DE3166641D1 (en)
FR (1) FR2497694A1 (en)
IT (1) IT1145216B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5116916A (en) * 1982-11-17 1992-05-26 Union Oil Company Of California Acid catalyzed reactions
DE3329639C2 (en) * 1983-08-17 1986-01-23 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg Device on a cooling basin filled with cooling liquid for hot rolled material
US5422897A (en) * 1994-01-28 1995-06-06 British Telecommunications Public Limited Company Two-stage mono-mode optical fibre laser
CN102950135B (en) * 2012-10-15 2015-08-05 中国重型机械研究院股份公司 A kind of milling train oil trap structure

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036825A (en) * 1957-05-17 1962-05-29 Eisenmenger Friedrich Process and apparatus for the continuous heat treating of elongated material
DE1153708B (en) * 1962-06-08 1963-09-05 Schloemann Ag Conveyor roller table for guiding thin strips between the continuous roller line and the horizontal reel
DE1546173A1 (en) * 1965-03-19 1969-04-17 C Otto & Company Gmbh Dr Process for the aftertreatment of pickled strand material, preferably wide band
FR2223096B1 (en) * 1973-03-26 1976-09-10 Usinor
NL156445B (en) * 1973-06-04 1978-04-17 Hoogovens Ijmuiden Bv DEVICE FOR COOLING BAR AND WIRE MATERIAL.
SE405259B (en) * 1975-03-25 1978-11-27 Wennberg Ab C J PROCEDURE FOR WIPING, WASHING AGAINST CURRENT AND DRYING FOR EXTREMELY MEDIUM SURFACE FORMAL LENGTHED MATERIALS AND DEVICE FOR PERFORMING THE PROCEDURE
FR2413140A1 (en) * 1977-12-30 1979-07-27 Usinor MACHINE FOR PROCESSING SHEETS OF VARIABLE WIDTH
FR2413139A1 (en) * 1977-12-30 1979-07-27 Usinor SHEET PROCESSING MACHINE
FR2413467A1 (en) * 1977-12-30 1979-07-27 Usinor DEVICE FOR MOUNTING ROLLERS IN A MACHINE FOR THE TREATMENT OF SHEETS OR SIMILAR PRODUCTS

Also Published As

Publication number Publication date
US4445525A (en) 1984-05-01
FR2497694A1 (en) 1982-07-16
JPS6410576B2 (en) 1989-02-22
DE3166641D1 (en) 1984-11-15
FR2497694B1 (en) 1984-03-23
JPS57137429A (en) 1982-08-25
EP0056917A1 (en) 1982-08-04
IT1145216B (en) 1986-11-05
IT8168573A0 (en) 1981-12-03

Similar Documents

Publication Publication Date Title
EP0806262B1 (en) Method and apparatus for wave soldering or wave tinplating
EP0099818B1 (en) Method of confining the pollution of an area by making use of an air curtain
EP0056917B1 (en) Device at the entrance and exit of sheet metal cooling machines
FR2695715A1 (en) Scouring door of an electric arc furnace.
FR2606674A1 (en) DEVICE FOR THE APPLICATION OF A VERY VISCOUS SEALING MATERIAL IN THE FORM OF A RING ON AN ESSENTIALLY FLAT SURFACE, IN PARTICULAR, A BOX COVER
EP0609157A1 (en) Steam-oven using direct gas heating
EP0056540B1 (en) Sealing device for a machine for treating sheet metal
EP2374385B1 (en) Infrared cooking appliance
EP0094883B1 (en) Shearing device for irradiated fuel assemblies
FR2550240A1 (en) Washing agent flushing device
FR2589029A1 (en) NOZZLE DEVICE FOR FIXING OR REMOVING COMPONENTS FROM A PRINTED OR SIMILAR CIRCUIT AND IMPROVED NOZZLE FOR USE WITH SUCH DEVICE
FR2643577A1 (en) Self-cleaning installation for the automatic continuous washing of accessories used in the food processing industry
EP2239062A1 (en) Method and device for cleaning thin metal parts
FR2702980A1 (en) Recovery device for machining machine
EP0497703B1 (en) Multiple glazing with dynamic insulation
EP0409757B1 (en) Apparatus for ventilation and cooling of a housing support of an emitter
FR2523864A1 (en) HOOD AND FLAME STOP FILTER ASSEMBLY FOR FOURNEAU HOOD
EP0632243B1 (en) Apparatus for drying strips, in particular paper strips
WO2000045097A1 (en) Device for diffusing sterile air
CH626815A5 (en) Filtration process and apparatus
EP0056538B1 (en) Obturator at the extremities of a machine for treating sheet material
FR2748231A1 (en) APPARATUS FOR HEATING EXTRUDED PVC BARS
EP1496165B1 (en) Public sanitary equipment provided with a floor cleaning device
FR2937565A1 (en) HYDRODYNAMIC SEPARATOR FOR CLEANING A FLUID VEIN
EP4251453B1 (en) Anti-recirculation device for improving air supply

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE GB

17P Request for examination filed

Effective date: 19820603

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: UNION SIDERURGIQUE DU NORD ET DE L'EST DE LA FRANC

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): DE GB

REF Corresponds to:

Ref document number: 3166641

Country of ref document: DE

Date of ref document: 19841115

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19901203

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19901205

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19911207

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19920901