EP4140592B1 - Dispositif buse et son procédé de fabrication - Google Patents

Dispositif buse et son procédé de fabrication

Info

Publication number
EP4140592B1
EP4140592B1 EP22184474.9A EP22184474A EP4140592B1 EP 4140592 B1 EP4140592 B1 EP 4140592B1 EP 22184474 A EP22184474 A EP 22184474A EP 4140592 B1 EP4140592 B1 EP 4140592B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
nozzle device
blowing
flat product
jet
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.)
Active
Application number
EP22184474.9A
Other languages
German (de)
English (en)
Other versions
EP4140592A1 (fr
EP4140592C0 (fr
Inventor
Christopher Weber
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.)
SMS Group GmbH
Original Assignee
SMS Group 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 SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP4140592A1 publication Critical patent/EP4140592A1/fr
Application granted granted Critical
Publication of EP4140592C0 publication Critical patent/EP4140592C0/fr
Publication of EP4140592B1 publication Critical patent/EP4140592B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/005—Nozzles or other outlets specially adapted for discharging one or more gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices 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
    • B21B45/0269—Cleaning
    • B21B45/0275—Cleaning devices
    • B21B45/0278—Cleaning devices removing liquids

Definitions

  • the invention relates to a nozzle device for drying and cleaning the edge region of a flat product, in particular a metal sheet or strip. Furthermore, the present invention also relates to a method for its production.
  • the dryness of flat products is an important quality criterion for their customers, especially when the end product is a cold-rolled flat product.
  • Cold rolling typically involves the use of fluids that positively influence the rolling process; these can be emulsions or rolling oils, etc. These fluids must be removed from the surface of the flat product following the rolling process. This is traditionally achieved using a so-called dry strip system, or DS system for short.
  • the DS system uses a Coanda nozzle to non-contact seal the gap between the work roll and an upper deflector table, generating an airflow that surrounds the flat product and ensures that it is largely free of residual emulsion.
  • residual emulsion droplets may be found in the edge area of the flat product.
  • a first variant of the additional edge blow-off device is a zone-controlled edge blow-off system.
  • Compressed air nozzles are located close to the roll gap to prevent emulsion from passing through the roll gap from the inlet to the outlet side of a rolling stand and wetting the edge of the flat product.
  • the blow-off nozzles can be switched on or off in different zones, depending on the width of the flat product.
  • the additional edge blow-off device essentially consists of compressed air nozzles that can be moved in the width direction of the flat product using an electric or pneumatic motor, thus allowing them to be adjusted to the current width of the flat product. Due to space constraints, however, this second variant can usually only be installed further back in the exit area of a (cold) rolling stand for rolling the flat product.
  • the third variant of the additional edge blow-off device is a modification of the second variant.
  • the third variant does not require a separate actuator for moving the edge blow-off device. Instead, the pressure nozzles are moved together with the side guide in the exit of a rolling stand.
  • edge blow-off device Despite the additional edge blow-off device, problems still occur frequently in the edge area of flat products, namely when the edge blow-off device either does not remove the residual emulsion on the edges in a process-stable manner or when the emulsion is initially blown off the edge of the The emulsion is removed from the flat product, but is subsequently deflected at a different location in the exit area of the rolling stand that rolled the flat product, rewetting the surface of the flat product. This results in residual emulsion droplets on the surface of the flat product, which impair its quality as a final product.
  • the aforementioned first variant of the switchable blow-off device which can be switched on and off in individual zones, has the disadvantage that the blow nozzles cannot always be adjusted to the current strip width.
  • the blow nozzles cannot always be adjusted to the current strip width.
  • the compressed air nozzles of the additional edge blow-off device cannot apply sufficient force in the area of the edge of the flat product, and the residual emulsion cannot therefore be optimally removed from the edge of the flat product.
  • the effect 1) is not as pronounced, since there the DS system simultaneously generates an air flow away from the top side of the flat product.
  • nozzle device for removing moisture from an edge region of a metal strip.
  • the device is C-shaped for passing the edge region of a strip through.
  • nozzle assemblies are provided in both an upper leg of the C-shaped housing and a lower leg of the C-shaped housing for discharging compressed air onto the lower and upper surfaces of the edge region of the strip to be dried, wherein the air is directed towards the edge of the strip in order to remove any moisture present on the strip.
  • an extraction pipe is provided in the C-shaped nozzle assembly, which is connected to a vacuum generating device for extracting the air in the edge region of the strip to be dried.
  • the air can Contains moisture droplets that have been blown off the surface of the belt by the nozzle arrangements.
  • the device is housed in a housing. The housing can be moved toward or away from the belt or flat product by means of an electric motor.
  • FIG. 7 A known possibility for the realization of a negative pressure generating device is in Figure 7 in the form of a classic Venturi nozzle.
  • compressed air is first introduced into ejector A. Due to the cross-sectional constriction of the driving nozzle, the so-called Venturi nozzle B, the introduced compressed air is accelerated. The dynamic pressure increases, while the static pressure in the air decreases. After passing through the driving nozzle, the accelerated air expands again, and a vacuum is created. Due to the vacuum, the air is "sucked" into the ejector through vacuum port D. The compressed air, together with the "sucked-in” air, exits the ejector through silencer C.
  • the general advantages of using a Venturi nozzle are that these vacuum generators are particularly suitable for very high accelerations of the compressed air introduced into ejector A.
  • the Korean utility model KR 2010 0006932 U discloses a nozzle device in which a plurality of blow-off nozzles are arranged in a semicircle around an object to be sprayed or blown off.
  • the US patent US$2,050,046 discloses a nozzle device for applying air or a liquid to the edges of a rolled stock in a roll gap. This effectively removes oil from these edges.
  • US patent application US 2019/0076856 A1 discloses a nozzle device according to the preamble of claim 1.
  • the invention is based on the object of developing a known nozzle device in such a way that the nozzle device is structurally simplified and designed in such a way that parts of the liquid blown off the flat product that are not sucked off cannot get outside the nozzle device.
  • the nozzle device according to the invention has at least one suction device in which negative pressure is generated and which has at least one suction opening for sucking in and sucking out the liquid or the emulsion droplets blown off the edge of the flat product.
  • the suction device with its at least one suction opening is also integrated into the nozzle device as part of the nozzle device through additive manufacturing, typically into the flank part.
  • the suction device with its suction opening open toward the interior of the cavity spanned by the C-shaped nozzle device, is integrated into the flank part of the nozzle device in the form of a Venturi nozzle.
  • oblique in the present description does not mean perpendicular to the flat product, but at an acute angle with at least one component opposite to the direction of movement of the flat product relative to the nozzle device, and preferably also in the direction of the edge of the flat product.
  • the nozzle device is designed to remove liquid, i.e. to dry and/or clean impurities from the edge area of the Flat products are equally suitable. If only drying or only cleaning is mentioned below, this is only an example.
  • the stressed flank part by means of which the upper and lower legs are connected to one another, advantageously ensures that the cavity defined by the nozzle device is shielded from the surroundings of the nozzle device and thus ensures that emulsion drops detached from the surface of the flat product do not leave the nozzle device.
  • the claimed integral manufacturing of the nozzle i.e. the additive manufacturing of the nozzle device by 3D printing, enables the integration of various components or functions within the nozzle device.
  • the integrated production allows, in particular, all supply lines to the compressed air chambers and the upper and lower blow-off nozzles to be designed in such a way that a flow-optimised, uniform and energy-saving flow is achieved for the first medium with which the primary nozzle is operated and the second medium, which operates at least one secondary nozzle.
  • additive manufacturing can also be used to integrate other pneumatic elements, such as throttles, valves, etc., into the 3D-printed nozzle device.
  • secondary nozzles are preferably formed adjacent to the primary nozzle on both sides, each of which discharges a secondary jet running parallel to the primary jet onto the surface of the flat product.
  • the secondary jet serves to stabilize the primary jet and thus promotes effective drying or cleaning of the flat product.
  • the secondary nozzles in the claimed nozzle device are designed in such a way that, together with an optimized outer contour of the respective leg in which the secondary nozzles are arranged, they utilize the Coanda effect and the outflowing media, in particular the outflowing compressed air, entrains ambient air in the vicinity of the respective leg, whereby the volume flow of the secondary jets is increased many times over and at the same time the energy requirement is reduced.
  • the primary nozzle and the secondary nozzles can be operated with a different first medium and a different second medium, respectively.
  • first medium and the second medium are preferably the same, and more preferably, they are both air.
  • the flank part serves to delimit the cavity defined by the nozzle device on one side. This advantageously prevents the air enriched with the liquid or contaminants from being released into the environment in an uncontrolled manner.
  • the suction device with its intake opening in the form of a Venturi nozzle, which opens toward the interior of the cavity defined by the C-shaped nozzle device, is integrated into the flank portion of the nozzle device.
  • the intake openings are preferably located halfway between the upper and lower legs, more preferably in the direction of travel of the emulsion droplet detached from the edge of the flat product.
  • the aforementioned configuration of the suction device as a Venturi nozzle causes the formation of negative pressure at the intake openings, and in this way, the first and/or second medium, i.e., preferably the air of the primary jet and the secondary jet, together with the detached emulsion droplet contained therein, is sucked in by the intake openings and transported away in a controlled manner in the suction device.
  • the first and/or second medium i.e., preferably the air of the primary jet and the secondary jet
  • the large C-shaped design of the nozzle device shields the separation area, i.e., the space into which the liquid enters after being blown off the flat product, so that the liquid cannot escape outside the nozzle device.
  • a drain opening is arranged in the transition area between the flank section and the upper side of the lower leg.
  • the underside of the upper leg and/or the upper side of the lower leg are inclined towards the flank part, in particular towards the drainage opening.
  • the inclination is designed in such a way that the liquid can flow due to gravity along the underside of the upper leg and/or the upper side of the lower leg towards the drainage opening.
  • the provision of the inclination also prevents drops of liquid from accumulating on these surfaces within the cavity spanned by the nozzle device, which could otherwise drip or fall back onto the surface of the flat product.
  • the nozzle device according to the invention is positioned with the aid of actuators on the respective edges of the flat product to be cleaned. This allows for effective and energy-saving drying of the flat product.
  • the nozzle device is advantageously housed in a metal cage.
  • the nozzle device according to the invention is preferably manufactured in one piece, integrated additively, i.e., produced using a 3D printing process.
  • manufacture the nozzle device according to the invention in individual segments, which in turn are then each manufactured additively.
  • This segmented design offers the advantage that in the event of any damage to the nozzle device, e.g., in the event of a crack in the flat product, only the respective defective segment needs to be replaced.
  • the part of the nozzle device that is typically located above the flat product to be cleaned in such a way that it is held in position by a safety coupling. In this case, the upper part In the event of a crack in the flat product, the nozzle device is flexible and could then fold upwards and not suffer any major damage.
  • FIG. 1 shows the nozzle device according to the invention in a perspective view.
  • the nozzle device 100 is C-shaped with an upper leg 110-o and a lower leg 110-u, both of which are connected to one another via a flank part 120 for passing through an edge region of a flat product 200 to be cleaned.
  • a drain opening 160 is formed in the transition region between the flank part 120 and the upper side of the lower leg 110-u for discharging residual liquid that was not captured and sucked away by a suction device 140, described later.
  • the cavity 300 defined by the two legs 110-o and 110-u and the flank portion 120 is typically filled with air enriched with liquid droplets blown off the flat product.
  • the underside of the upper leg and/or the upper side of the lower leg are inclined toward the flank portion 120 and in particular toward the discharge opening 160.
  • the present invention provides for the nozzle device 100 to be formed integrally with the two legs 100-o, 110-u, with the flank part 120 and with the two blow-off nozzles 130-o, 130-u by additive manufacturing.
  • Figure 2 shows a longitudinal section through the nozzle device 100, wherein at least one upper blow-off nozzle 130-o is arranged in the upper leg 110-o, directed obliquely toward the upper side of the edge region of the flat product, for emitting a first blow-off jet 134, 137.
  • the first blow-off jet serves to divert liquid collected on the upper side of the flat product toward the edge of the edge region of the flat product.
  • a lower blow-off nozzle 130-u is arranged in the lower leg 110-u of the nozzle device 100 and is directed obliquely toward the underside of the edge region of the compartment product to be dried.
  • the lower blow-off nozzle 130-u serves to emit a second blow-off jet and to divert liquid located on the underside of the flat product to be dried with the second blow-off jet toward the edge of the edge region of the flat product 200.
  • FIG 2 Furthermore, three intake openings 142 are shown here as an example in Figure 2 suction device 140 (not shown in detail).
  • the suction device generates a negative pressure which is present at the suction openings 142 for sucking in and sucking out the air in the cavity 300 with the liquid blown off the edge of the flat product.
  • a more detailed description of the suction device 140 is given below with reference to the Figures 5 and 6 .
  • the upper blow-off nozzle 130-o is shown in detail.
  • the lower blow-off nozzle 130-u in the lower leg 110-u is designed analogously.
  • the upper or lower blow-off nozzle 130-o, 130-u is preferably also integrated into the nozzle device, specifically initially in the form of a primary nozzle 132, which is in fluid communication with a pressure chamber 133 integrated in the upper and/or lower leg.
  • the primary nozzle 132 serves to discharge a primary jet 134, preferably at an acute angle onto the top or bottom of the flat product.
  • the primary jet is formed from a first medium.
  • At least one secondary nozzle 136 is formed for emitting a secondary jet 137 running parallel to the primary jet 132, likewise preferably at an acute angle onto the surface of the flat product.
  • the secondary jet 137 typically serves to stabilize the primary jet 134.
  • the secondary jet is formed from a second medium, which may or may not be different from the first medium.
  • the first and second media are the same and are typically air in both cases.
  • the primary nozzle 132 and the secondary nozzles 137 are preferably each designed in the form of slot nozzles. In particular, if slot nozzles are formed, the primary nozzle and the secondary nozzle are arranged parallel to one another.
  • the primary jet and the typically two secondary jets adjacent on both sides together form the blow-off jet of the nozzle device 100.
  • the secondary nozzles 136 are each in fluid communication with air intake openings 139 on the outside of the respective leg 110-o, 110-u via a channel 138 integrated in the respective leg 110-o, 110-u for sucking in ambient air to form the secondary jets 137.
  • the outer contours of the legs 110-o, 110-u in the area of the air intake openings 139 are each designed in such a way that the Coanda effect occurs in the area of the air intake openings 139.
  • Figure 4 illustrates the operation of the nozzle device 100 according to the invention, in the left-hand illustration in a plan view and in the right-hand illustration in a cross-sectional view.
  • a plurality of blow-off nozzles 130-o are arranged parallel to one another.
  • the first or upper blow-off jets 134, 137 generated by them are directed with a first component against the direction of movement or against the direction of transport of the flat product to be dried and with a second component preferably simultaneously also towards the edge of the flat product.
  • Figure 2 known suction openings 142 for sucking in and out the residual liquid blown off the edge of the flat product.
  • the intake openings 142 are arranged halfway between the upper and lower legs 110-o, 110-u, ie in the target area of the blow-off jets after they have been diverted from the top and bottom of the flat product to be dried in a horizontal direction towards the flank part 120 of the nozzle device 100.
  • the Figures 5 and 6 show the design of the suction device 140 according to the invention integrated into the flank part 120.
  • the suction device is integrated in the form of a Venturi nozzle or a plurality of parallel Venturi nozzles, i.e., formed in the flank part 120 using a 3D printing process.
  • a negative pressure is generated at the suction openings 142 to suck in and remove the liquid blown off the edge of the flat product.
  • the nozzle device according to the invention is made of plastic, preferably thermoplastic.

Landscapes

  • Nozzles (AREA)

Claims (15)

  1. Dispositif de buse (100) pour le séchage et/ou le nettoyage de la zone de bord d'un produit plat (200), en particulier d'une tôle ou d'une bande métallique, ledit dispositif de buse étant de forme en C avec un bras supérieur et un bras inférieur (110-o, 110-u), tous deux reliés l'un à l'autre par une partie latérale (120), de manière à permettre le passage de la zone de bord (210) du produit plat à sécher ou à nettoyer entre le bras supérieur et le bras inférieur, comprenant en outre :
    au moins une buse de soufflage supérieure (130-o) disposée dans le bras supérieur (110-o) pour émettre un premier jet de soufflage, et au moins une buse de soufflage inférieure (130-u) disposée dans le bras inférieur (110-u) pour émettre un second jet de soufflage, le dispositif de buse (100), comprenant les deux bras (110-o, 110-u), la partie latérale (120) et les deux buses de soufflage (130-o, 130-u), étant réalisé de manière intégrée par fabrication additive ;
    caractérisé en ce que
    la buse de soufflage supérieure (130-o) est orientée en biais vers la face supérieure de la zone de bord pour évacuer, à l'aide du premier jet de soufflage, le liquide présent sur la face supérieure en direction du bord de ladite zone;
    en ce que la buse de soufflage inférieure (130-u) est orientée en biais vers la face inférieure de la zone de bord pour évacuer, à l'aide du second jet de soufflage, le liquide présent sur la face inférieure en direction du bord de ladite zone ;
    en ce qu'au moins un dispositif d'aspiration (140), dans lequel une dépression est générée, est prévu avec au moins une ouverture d'aspiration (142) pour l'aspiration et l'extraction du liquide soufflé depuis le bord du produit plat ; et
    en ce que le dispositif d'aspiration (140), avec son ouverture d'aspiration (142), est également intégré en tant que partie du dispositif de buse (100) par fabrication additive.
  2. Dispositif de buse (100) selon la revendication 1,
    caractérisé en ce que
    la buse de soufflage supérieure et/ou inférieure (130-o, 130-u) est formée de manière intégrée dans le dispositif de buse (100) à partir de :
    une buse primaire (132), reliée en communication fluidique à une chambre de pression (133) intégrée dans le bras supérieur et/ou inférieur, pour émettre un jet primaire (134) du jet de soufflage vers la face supérieure et/ou inférieure du produit plat (200),
    le jet primaire étant formé d'un premier médium.
  3. Dispositif de buse selon la revendication 2,
    caractérisé en ce que
    la buse de soufflage supérieure et/ou inférieure (130-o, 130-u) comprend en outre, de manière intégrée dans le dispositif de buse (100) :
    des buses secondaires (136), de préférence disposées de part et d'autre de la buse primaire (132), pour émettre chacune un jet secondaire (137) du jet de soufflage, parallèle au jet primaire (134), en direction de la face supérieure et/ou inférieure du produit plat (200), afin de stabiliser le jet primaire,
    le jet secondaire étant formé d'un second médium.
  4. Dispositif de buse (100) selon la revendication 2 ou 3,
    caractérisé en ce que
    la buse primaire (132) et les buses secondaires (137) sont chacune formées sous la forme de buses à fente.
  5. Dispositif de buse (100) selon l'une des revendications 2 à 4,
    caractérisé en ce que
    le premier et le second médium sont identiques, notamment de l'air, en particulier de l'air comprimé.
  6. Dispositif de buse (100) selon l'une des revendications 2 à 5,
    caractérisé en ce que
    les buses secondaires (136) sont en communication fluidique, par l'intermédiaire d'un canal (138) intégré dans le bras correspondant (110-o, 110-u), avec des orifices d'admission d'air (139) disposés sur la face extérieure du bras concerné, pour l'aspiration de l'air ambiant destiné à former les jets secondaires (137) ; et
    en ce que chaque buse secondaire (136) est de préférence associée à au moins une buse tertiaire (135) destinée à injecter de l'air comprimé dans le canal (138) de la buse secondaire (136).
  7. Dispositif de buse (100) selon l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif d'aspiration (140), avec l'ouverture d'aspiration (142) orientée vers l'intérieur du volume creux (300) délimité par le dispositif de buse en forme de C, est intégré sous forme de buse Venturi dans la partie latérale (120) du dispositif de buse (100).
  8. Dispositif de buse (100) selon la revendication 7,
    caractérisé en ce que
    l'ouverture d'aspiration (142) est formée à mi-hauteur entre le bras supérieur et le bras inférieur (110-o, 110-u), de préférence dans la zone cible des jets de soufflage (134, 137), dans la partie latérale (120).
  9. Dispositif de buse (100) selon l'une des revendications précédentes,
    caractérisé en ce que
    une ouverture d'évacuation (160) est formée dans la zone de transition entre la partie latérale (120) et la face supérieure du bras inférieur (110-u) pour évacuer le liquide non aspiré par le dispositif d'aspiration (140).
  10. Dispositif de buse (100) selon la revendication 9,
    caractérisé en ce que
    la face inférieure du bras supérieur (110-o) et/ou la face supérieure du bras inférieur (110-u) est inclinée vers la partie latérale (120), notamment vers l'ouverture d'évacuation (160), de sorte que le liquide puisse s'écouler vers la partie latérale (120).
  11. Dispositif de buse (100) selon l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif de buse (100), avec les deux bras (110-o, 110-u), la partie latérale (120) et les deux buses de soufflage (130-o, 130-u), est formé en une seule pièce par fabrication additive.
  12. Dispositif de buse (100) selon l'une des revendications 1 à 10,
    caractérisé en ce que
    le dispositif de buse (100) est assemblé à partir d'une pluralité de segments interchangeables, chacun des segments étant formé d'une seule pièce par fabrication additive.
  13. Dispositif de buse (100) selon la revendication 12,
    caractérisé en ce que
    par exemple, le bras supérieur (110-o) est fabriqué séparément en tant que segment du dispositif de buse (100) par fabrication additive et fixé de manière amovible, de préférence mobile, à la partie latérale (120).
  14. Dispositif de buse (100) selon l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif de buse (100) est logé dans une cage métallique.
  15. Dispositif de buse (100) selon l'une des revendications précédentes, caractérisé par un actionneur pour positionner le dispositif de buse (100) au niveau du bord du produit plat.
EP22184474.9A 2021-08-24 2022-07-12 Dispositif buse et son procédé de fabrication Active EP4140592B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021209265.9A DE102021209265A1 (de) 2021-08-24 2021-08-24 Düsenvorrichtung und Verfahren zu deren Herstellung

Publications (3)

Publication Number Publication Date
EP4140592A1 EP4140592A1 (fr) 2023-03-01
EP4140592C0 EP4140592C0 (fr) 2025-09-10
EP4140592B1 true EP4140592B1 (fr) 2025-09-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP22184474.9A Active EP4140592B1 (fr) 2021-08-24 2022-07-12 Dispositif buse et son procédé de fabrication

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Country Link
EP (1) EP4140592B1 (fr)
DE (1) DE102021209265A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023113188A1 (de) * 2023-05-19 2024-11-21 Sms Group Gmbh Vorrichtung zum thermischen Spritzen, Fertigungsverfahren zum Fertigen einer derartigen Vorrichtung und Verwendung eines additiven Fertigungsverfahrens

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2050046A (en) * 1935-01-21 1936-08-04 American Steel & Wire Co Cold-rolling steel strip
DE69210835T2 (de) 1991-11-01 1996-09-26 Davy Mckee Poole Entfernung von feuchtigkeit von einem metallband
KR200461632Y1 (ko) * 2008-12-29 2012-07-30 코카콜라음료 주식회사 해충유입방지기와 이를 이용한 이송장치 및 음료공급장치
WO2017115096A1 (fr) * 2015-12-29 2017-07-06 Arcelormittal Buse à air pour guider une bande d'acier à la sortie d'un dispositif pour cisailler une tôle d'acier et fichier de conception assistée par ordinateur

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Publication number Publication date
EP4140592A1 (fr) 2023-03-01
DE102021209265A1 (de) 2023-03-02
EP4140592C0 (fr) 2025-09-10

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