WO2017033953A1 - Mécanisme de positionnement destiné à un cadre métallique coulissant - Google Patents

Mécanisme de positionnement destiné à un cadre métallique coulissant Download PDF

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Publication number
WO2017033953A1
WO2017033953A1 PCT/JP2016/074592 JP2016074592W WO2017033953A1 WO 2017033953 A1 WO2017033953 A1 WO 2017033953A1 JP 2016074592 W JP2016074592 W JP 2016074592W WO 2017033953 A1 WO2017033953 A1 WO 2017033953A1
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WO
WIPO (PCT)
Prior art keywords
metal frame
stopper
slide metal
slide
contact
Prior art date
Application number
PCT/JP2016/074592
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English (en)
Japanese (ja)
Inventor
俊洋 今長谷
晶 大塚
Original Assignee
黒崎播磨株式会社
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 黒崎播磨株式会社 filed Critical 黒崎播磨株式会社
Priority to JP2017536453A priority Critical patent/JP6467511B2/ja
Publication of WO2017033953A1 publication Critical patent/WO2017033953A1/fr

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16Controlling or regulating processes or operations
    • B22D11/18Controlling or regulating processes or operations for pouring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14Closures
    • B22D41/22Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14Closures
    • B22D41/22Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/38Means for operating the sliding gate

Definitions

  • the present invention relates to a slide metal frame positioning mechanism in a sliding nozzle device that controls the flow rate of molten metal.
  • the sliding nozzle device slides (slides) one of these plates in a state where a refractory plate having two or three nozzle holes is sandwiched at a high pressure (a surface pressure is applied).
  • a surface pressure is applied.
  • the sliding plate is held by a slide metal frame, and the slide metal frame is attached so as to be openable and closable for exchanging the plate.
  • the plate has a life span after several uses, it is necessary to open the slide frame when replacing the plate or checking the damage state. At this time, the surface pressure must be released before the slide metal frame is opened, and the surface pressure must be applied after the slide metal frame is closed.
  • a method of releasing the surface pressure in the sliding nozzle device As a method of releasing the surface pressure in the sliding nozzle device, a method of releasing the surface pressure by sliding the slide metal frame is known. That is, the spring is bent using the driving force when the slide metal frame slides.
  • the slide range movement range
  • a driving device having different strokes is used during casting and when the surface pressure load is released.
  • the tip coupling portion 72 of the rod 71 of the oil cylinder 70 is detachably attached to the coupling portion 35 of the slide metal frame 30.
  • the main body of the oil cylinder 70 is detachably attached to the oil cylinder attachment portion 23 of the fixed metal frame 20, so that different strokes can be used when the plate is used and when it is replaced.
  • the movable range of the slide metal frame 30 can be changed, and the surface pressure can be loaded and released.
  • Patent Document 2 describes a structure in which the connecting portion 40 is automatically connected when the linear drive device 30 is pushed into the holding portion 28 by sliding the drive rod 32 toward the sliding body unit 25.
  • It is a structure that uses a pawl element or a spring member that is supported in an articulated manner as a structure that automatically connects, there is a problem because distortion due to heat occurs in an environment that is used at high temperatures. There is a problem that it is easy and has a short life.
  • the problem to be solved by the present invention is to provide a slide metal frame positioning mechanism that can accurately position the slide metal frame with a simple operation and is excellent in durability.
  • the following slide metal frame positioning mechanisms (1) to (4) are provided.
  • the slide metal frame positioning mechanism is configured such that the slide metal frame is positioned by the contact between the stopper and the contact portion.
  • Two stopper contact surfaces are provided on both sides of the connecting portion between the driving portion and the slide metal frame,
  • the stopper is provided with two receiving portions having receiving surfaces capable of contacting the two stopper contacting surfaces,
  • a hole in which the two receiving parts of the stopper can be inserted is provided in the fixed metal frame,
  • the stopper receiving portion is fixed on the base end side of the insertion portion inserted into the hole of the fixed metal frame and on the side opposite to the force receiving side received when the slide metal frame is positioned by the driving portion.
  • the slide metal frame positioning mechanism according to (2) which has a fixed metal frame contact surface capable of contacting a surface of the metal frame on the slide metal frame side.
  • a stopper is provided at the connecting part between the drive part and the slide metal frame so as to protrude in the direction of the fixed metal frame,
  • the fixed metal frame is provided with a concave portion extending in the sliding direction of the slide metal frame so that the stopper can be moved.
  • the slide metal frame positioning mechanism of the present invention since the slide metal frame is positioned by the stopper, the slide metal frame can be accurately positioned by a simple operation without performing a complicated positioning operation. Furthermore, since this positioning is a simple mechanism of contact between the stopper and the contact portion, the parts used have a simple structure and are excellent in durability.
  • FIG. 1 It is a perspective view of a sliding nozzle device main body, a drive part, and a stopper concerning the 1st example of the present invention. It is a perspective view of a stopper. It is a perspective view of the front-end
  • FIG. 7 is a perspective view of the sliding nozzle device with the stopper removed in FIG. 6. It is explanatory drawing of the contact state of the front-end
  • FIG. 10 is a perspective view of a sliding nozzle device in a state where a driving portion (hydraulic cylinder) is in a forward limit position and the surface pressure is released in the third embodiment.
  • FIGS. 1, 4 to 9 and FIG. The state is shown in a state of standing.
  • a sliding nozzle device 1 includes a sliding nozzle device main body 2, a drive unit 3, and a stopper 4.
  • the sliding nozzle device body 2 includes a fixed metal frame 5, a slide metal frame 6 that is slidable on the fixed metal frame 5 and that can be opened and closed, and two open / close units that are rotatably provided on both sides of the fixed metal frame 5. It has a metal frame 7.
  • the fixed metal frame 5 has a substantially rectangular plate shape, and its side surface is attached to the bottom of the molten metal container by a bolt 11.
  • a refractory plate is held on the fixed metal frame 5 and the slide metal frame 6 in the same manner as in Patent Document 1, and slides in a state where the sliding surfaces of the plates are in contact with each other by the drive unit 3. can do.
  • the fixed metal frame 5 has a drive unit holder 50 at one end in the longitudinal direction.
  • the drive unit holder 50 is provided with two grooves 51 and 52 each having an inlet on one side so as to face each other with the space 53 interposed therebetween.
  • a hydraulic cylinder 31 is used as a drive device.
  • the hydraulic cylinder is attached to a rectangular substrate 33 so that the rod 32 penetrates, and the tip of the rod 32 has a tip connecting portion 8 as a connecting portion.
  • the drive unit 3 is detachably attached to the drive unit holder 50 by inserting the edge 35 of the substrate 33 into the grooves 51 and 52 of the drive unit holder 50. Further, the upper surface 36 and the lower surface 37 of the substrate 33 are in contact with the inner walls of the grooves 51 and 52, so that a reaction force when the slide metal frame 6 is slid (slid) can be received.
  • the distal end connecting portion 8 of the driving portion 3 is substantially T-shaped in plan view, and a fitting groove 82 and a fitting convex portion 83 that open on the side surface as a fitting portion 81 on the tip side. have.
  • the slide metal frame 6 has a slide metal frame side connection part 60 as a connection part on the drive part holder 50 side, and the slide metal frame side connection part 60 is driven by fitting with the front end connection part 8 of the drive part 3.
  • the part 3 and the slide metal frame 6 are detachably connected.
  • the slide metal frame side connecting portion 60 has a fitting groove 61 opened on the side surface and a fitting convex portion 62 at the tip.
  • the connecting portion is a portion that connects the driving portion and the slide metal frame.
  • the tip connecting portion 8 and the slide metal frame side connecting portion 60 are both connecting portions, and the tip connecting portion 8 and the slide metal frame side connecting portion 60 are connected so that the slide metal frame is shown in FIG. It can slide (slide) in the vertical direction.
  • the stopper 4 has a connecting bar 43 for connecting the two receiving portions 41, 42, and a handle 44 attached to the connecting bar 43, and the two receiving portions 41, 42 are connected at the tip.
  • Receiving surfaces 45 and 46 capable of abutting against the stopper abutting surfaces 86 and 87 of the portion 8 are provided.
  • the distal ends of the receiving portions 41, 42 are insertion portions 41a, 42a, and are stepped portions 41b, 42b on the slide metal frame side at the base end side of the insertion portions 41a, 42a when the stopper is inserted,
  • the stepped portion has fixed metal frame contact surfaces 47 and 48 that can contact the surface of the fixed metal frame on the slide metal frame side.
  • FIGS. 4 to 8 are examples in which a hydraulic cylinder 31 having a stroke as long as 250 mm is used.
  • FIG. 4 shows a state in which the surface pressure is applied by moving the hydraulic cylinder 31 from the forward limit position to the reverse limit position after closing the slide metal frame 6.
  • the driving force of the driving device normally used in the sliding nozzle device may be up to 30 t
  • the driving unit and the slide metal frame A very large force is applied to the connecting part.
  • the two stopper contact surfaces provided on both sides of the connecting portion between the drive portion and the slide metal frame are in contact with the two receiving surfaces of the stopper, the drive portion when the drive is stopped It is possible to suppress distortion of the rod and the connecting portion. If the stopper contact surface is provided only on one side, the rod of the drive unit is distorted, and the slide metal frame cannot be slid smoothly, and the drive device may break down.
  • it is conceivable to provide a stopper by providing a long hole in the slide metal frame on the central axis of the rod, the apparatus becomes large because the slide metal frame must be made strong.
  • the stopper abutting surface 86 of the connecting tip 8 abuts on the receiving surface 46 of the receiving portion 42.
  • the tip connecting portion 8 and the fixed metal frame 5 are in contact with each other.
  • the gap is 2 mm. That is, the gap between the lower ends of the stopper contact surfaces 85 and 86 and the fixed metal frame 5 is 2 mm.
  • the gap between the fixed metal frame 5 and the lower ends of the stopper contact surfaces 85 and 86 is preferably small, and is preferably 1 mm or more and 10 mm or less.
  • the receiving portions 41 and 42 of the stopper 4 are on the base end side of the insertion portions 41a and 42a, as shown in FIG. Step portions 41b and 42b are provided.
  • the receiving side of the force in the receiving units 41 and 42 is the driving unit side, and on the side opposite to the driving unit side.
  • Step portions 41b and 42b are provided.
  • the stepped portions 41b and 42b form fixed metal frame contact surfaces 47 and 48 that contact the surface of the fixed metal frame on the slide metal frame side.
  • the fixed metal frame abutment surfaces 47 and 48 can receive the bending moment to the receiving parts 41 and 42 generated by the thrust of the hydraulic cylinder by the fixed metal frame 5, the receiving parts 41 and 42 are deformed. Can be prevented. It should be noted that there is no particular problem even if the drive unit side has a stepped portion as shown in FIG.
  • the stopper contact surfaces 85 and 86 of the connecting tip 8 are in contact only with the receiving surfaces 45 and 46 of the receiving portions 41 and 42, but in addition to this, the connecting bar 43 of the stopper 4 Can also be brought into contact. Further, depending on the positional relationship between the connecting portion and the stopper, the stopper contact surface can be provided at the connecting portion on the slide metal frame side.
  • the insertion position of the stopper 4 is set in advance so that the position where the slide metal frame 6 is stopped by the stopper 4 becomes the mounting position (replacement position) of the drive unit with a short stroke.
  • the short stroke drive is mounted at the forward limit.
  • the slide metal frame 6 is positioned by the stopper 4 so as to be fitted to the tip connecting portion 8 of the short stroke drive unit as described above, when the short stroke drive unit is fitted to the drive unit holder 50, At the same time, the distal end connecting portion 8 of the driving portion 3 can be fitted into the slide metal frame side connecting portion 60. Therefore, it is not necessary to perform a complicated positioning operation when replacing the drive unit with a short stroke.
  • the central axis of the rod of the short stroke drive unit coincides with the central axis of the rod of the long stroke drive unit.
  • replacement with a short stroke drive unit can be performed in a state of being held by a turret (swing tower) immediately before discharge to a tundish, or immediately after plate replacement.
  • the surface pressure is applied at the position on the backward limit side of the drive unit having a long stroke, but the positioning mechanism of the present invention is applied when the surface pressure is applied at the position on the forward limit side. Is also applicable.
  • the slide metal frame is positioned to fully open the nozzle hole using a long stroke drive unit.
  • an intermediate connecting portion 9 is provided as a connecting portion between the slide metal frame 6 and the drive portion 3.
  • the intermediate connecting portion 9 is a connecting rod 91 having a T-shaped plan view on the slide metal frame side, and can be attached to and detached from the fitting hole 63 of the slide metal frame.
  • the tip of the rod 32 of the hydraulic cylinder 31 is similarly T-shaped in plan view, and is attachable to and detachable from the fitting hole 95 of the intermediate connecting portion.
  • the intermediate connecting portion 9 has three stopper contact surfaces 92, 93, 94 on both sides and the opposite side of the fixed metal frame across the central axis of the rod 32.
  • the stopper contact surfaces 92, 93 and 94 are perpendicular to the surface including the sliding surface of the plate.
  • the stopper 4 has a connecting bar 43 that connects the two receiving portions 41 and 42, and a handle 44 attached to the connecting bar, and the two receiving portions 41 and 42 and the connecting bar 43 include Receiving surfaces 45, 46, and 49 that can come into contact with the stopper contact surfaces 92, 93, and 94 of the intermediate connecting portion 9 are provided.
  • the receiving portions 41 and 42 have insertion portions 41a and 42a to be inserted into the holes 54 and 55 of the fixed metal frame, and the base end sides thereof are step portions 41b and 42b.
  • the stepped portions 41b and 42b form fixed metal frame contact surfaces 47 and 48 that can contact the surface of the fixed metal frame on the slide metal frame side.
  • the slide metal frame does not move when the stopper is removed. Can be accurately positioned.
  • a stopper contact surface is provided on the slide metal frame, the slide metal frame must be moved in order to remove the stopper. It will move to the position. Therefore, it is more preferable that the stopper contact surface is provided at the tip connecting portion or the intermediate connecting portion.
  • an intermediate connecting portion 9 is provided as a connecting portion between the slide metal frame 6 and the drive portion 3.
  • the intermediate connecting portion 9 is a connecting rod 91 having a T-shaped plan view on the slide metal frame side, and can be attached to and detached from the fitting hole 63 of the slide metal frame.
  • the tip of the rod 32 of the hydraulic cylinder 31 is similarly T-shaped in plan view, and is attachable to and detachable from the fitting hole 95 of the intermediate connecting portion.
  • the intermediate connecting portion 9 has three stopper contact surfaces 92, 93, 94 on both sides and the opposite side of the fixed metal frame 5 with the central axis of the rod 32 interposed therebetween.
  • the stopper contact surfaces 92, 93 and 94 are perpendicular to the surface including the sliding surface of the plate.
  • the stopper 100 has two receiving portions 101, 101, a connecting bar 102 for connecting them, and a handle 103 attached to the connecting bar 102.
  • Each receiving portion 101 has a protruding portion 101a that protrudes into the recessed portion 56 (see FIG. 12) of the fixed metal frame.
  • Each receiving portion 101 has a long hole 101 b having a step, and a bolt 104 passes through the long hole, and the bolt is screwed to the intermediate connecting portion 9.
  • the inside of the connecting bar 102 is held by a pin 105 provided with a coil spring 104, and this pin is inserted into the through hole of the intermediate connecting portion 9.
  • the handle 103 is rotatably attached to the connecting bar 102, and a stop plate 103 a is attached to the handle 103.
  • the fixed metal frame 5 is provided with a recess 56 extending in the sliding direction of the slide metal frame, and each protrusion 101 a of the stopper protruding from the intermediate connecting portion 9 slides within the recess 56. It can move in the sliding direction of the gold frame. And in this recessed part 56, the inner wall 56a of the level
  • the stopper 100 slides to fix the intermediate connection portion 9.
  • the protruding portion 101a of the stopper protrudes from the frame side (FIG. 14).
  • the hydraulic cylinder 31 is advanced in this state, the protruding portion 101 a of the stopper comes into contact with the inner wall 56 a of the recess 56 provided in the fixed metal frame 5.
  • the stopper contact surfaces 92, 93, 94 of the intermediate connecting portion 9 contact the receiving surfaces 106, 107, 108 of the stopper 100 (the three upper surfaces of the two receiving portions 101, 101 and the connecting bar 102).
  • the drive of the hydraulic cylinder 31 can be stopped, and the slide metal frame 6 is positioned to be in the state shown in FIG.
  • the stopper 100 is attached to the intermediate connecting portion 9 so that it can move a little in the sliding direction of the slide metal frame.
  • the stopper protrusion 103 a can be accommodated in the intermediate connecting portion 9 by rotating the stopper handle 103. Then, as shown in FIG. 16, the surface pressure is released by setting the drive unit 3 to the forward limit position, and the slide metal frame can be opened.
  • the stopper 100 since the stopper 100 is held by the connecting portion, there is no need to search for the stopper during the operation and it is not lost.
  • the rod of the drive unit when replacing the drive unit with a short stroke, the rod of the drive unit must be fitted to the connecting unit with the forward limit, but at this time, the rod of the drive unit is not limited to the forward limit due to a work mistake. If attached, the slide metal frame may move too much to release the surface pressure. At the time of this replacement, there is a case where molten metal is in the ladle, and there is a problem that steel leakage occurs when the surface pressure is released.
  • the moving range of the slide metal frame is limited by the protrusion 101a of the stopper, the surface pressure is not released even if such a mistake occurs.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

La présente invention concerne un mécanisme de positionnement destiné à un cadre métallique coulissant qui est apte à positionner avec précision un cadre métallique coulissant grâce à une simple opération, et qui est excellent en termes de durabilité. En d'autres termes, la présente invention concerne un mécanisme de positionnement destiné à un cadre métallique coulissant comprenant une butée (4) prévue sur un élément quelconque parmi une partie de raccordement entre une unité d'entraînement (3) et un cadre métallique coulissant (6), et un cadre métallique de fixation (5), et une partie de contact avec la butée (4) prévue sur l'autre élément parmi la partie de raccordement et le cadre métallique de fixation, et la position du cadre métallique coulissant (6) dans la direction de coulissement étant déterminée par le contact de la butée (4) avec la partie de contact.
PCT/JP2016/074592 2015-08-27 2016-08-24 Mécanisme de positionnement destiné à un cadre métallique coulissant WO2017033953A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017536453A JP6467511B2 (ja) 2015-08-27 2016-08-24 スライド金枠の位置決め機構

Applications Claiming Priority (2)

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JP2015168046 2015-08-27
JP2015-168046 2015-08-27

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019058930A (ja) * 2017-09-26 2019-04-18 黒崎播磨株式会社 スライディングノズル装置
WO2021033659A1 (fr) * 2019-08-21 2021-02-25 黒崎播磨株式会社 Dispositif de buse coulissante
WO2022168752A1 (fr) * 2021-02-04 2022-08-11 黒崎播磨株式会社 Dispositif d'installation
EP4275813A1 (fr) * 2022-05-13 2023-11-15 Refractory Intellectual Property GmbH & Co. KG Fermeture coulissante pour un récipient contenant du métal en fusion

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03120950U (fr) * 1990-03-20 1991-12-11
JPH06226430A (ja) * 1993-02-05 1994-08-16 Kurosaki Refract Co Ltd 面圧負荷及び解除機構を備えたスライディングノズル装置
JPH11254126A (ja) * 1998-03-13 1999-09-21 Sumitomo Jukikai Chutan Kk スライドゲートの面圧負荷装置
JP2011131253A (ja) * 2009-12-25 2011-07-07 Shinagawa Refractories Co Ltd 自動面圧負荷スライドバルブ装置およびその面圧負荷方法
JP5283772B1 (ja) * 2012-06-28 2013-09-04 品川リフラクトリーズ株式会社 自動面圧負荷スライドバルブ装置
JP2015066553A (ja) * 2013-09-26 2015-04-13 黒崎播磨株式会社 スライディングノズル装置

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
JPS5353526A (en) * 1976-10-25 1978-05-16 Nippon Steel Corp Refreshing method of sliding nozzle device or some part of construction
JP3329556B2 (ja) * 1993-12-27 2002-09-30 川崎炉材株式会社 溶融金属流量制御用スライディングノズル
CN100522419C (zh) * 2006-10-26 2009-08-05 刘悦钦 钢包滑动水口装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03120950U (fr) * 1990-03-20 1991-12-11
JPH06226430A (ja) * 1993-02-05 1994-08-16 Kurosaki Refract Co Ltd 面圧負荷及び解除機構を備えたスライディングノズル装置
JPH11254126A (ja) * 1998-03-13 1999-09-21 Sumitomo Jukikai Chutan Kk スライドゲートの面圧負荷装置
JP2011131253A (ja) * 2009-12-25 2011-07-07 Shinagawa Refractories Co Ltd 自動面圧負荷スライドバルブ装置およびその面圧負荷方法
JP5283772B1 (ja) * 2012-06-28 2013-09-04 品川リフラクトリーズ株式会社 自動面圧負荷スライドバルブ装置
JP2015066553A (ja) * 2013-09-26 2015-04-13 黒崎播磨株式会社 スライディングノズル装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019058930A (ja) * 2017-09-26 2019-04-18 黒崎播磨株式会社 スライディングノズル装置
WO2021033659A1 (fr) * 2019-08-21 2021-02-25 黒崎播磨株式会社 Dispositif de buse coulissante
JP2021030257A (ja) * 2019-08-21 2021-03-01 黒崎播磨株式会社 スライディングノズル装置
JP7222845B2 (ja) 2019-08-21 2023-02-15 黒崎播磨株式会社 スライディングノズル装置
WO2022168752A1 (fr) * 2021-02-04 2022-08-11 黒崎播磨株式会社 Dispositif d'installation
EP4275813A1 (fr) * 2022-05-13 2023-11-15 Refractory Intellectual Property GmbH & Co. KG Fermeture coulissante pour un récipient contenant du métal en fusion
WO2023217884A1 (fr) 2022-05-13 2023-11-16 Refractory Intellectual Property Gmbh & Co. Kg Fermeture coulissante pour récipient contenant du métal en fusion

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JP6467511B2 (ja) 2019-02-13

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