EP2319640A1 - Busette de coulée et assemblage d'une telle busette de coulée avec une busette interne - Google Patents

Busette de coulée et assemblage d'une telle busette de coulée avec une busette interne Download PDF

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Publication number
EP2319640A1
EP2319640A1 EP09173696A EP09173696A EP2319640A1 EP 2319640 A1 EP2319640 A1 EP 2319640A1 EP 09173696 A EP09173696 A EP 09173696A EP 09173696 A EP09173696 A EP 09173696A EP 2319640 A1 EP2319640 A1 EP 2319640A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
axis
plate
casting
orifice
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.)
Withdrawn
Application number
EP09173696A
Other languages
German (de)
English (en)
French (fr)
Inventor
Fabrice Sibiet
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.)
Vesuvius Group SA
Original Assignee
Vesuvius Group SA
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 Vesuvius Group SA filed Critical Vesuvius Group SA
Priority to EP09173696A priority Critical patent/EP2319640A1/fr
Priority to TW099135416A priority patent/TWI522189B/zh
Priority to ARP100103810A priority patent/AR080344A1/es
Priority to NZ598948A priority patent/NZ598948A/xx
Priority to EP10771019A priority patent/EP2490845A1/en
Priority to KR1020127012959A priority patent/KR101689919B1/ko
Priority to RU2012112621/02A priority patent/RU2551742C2/ru
Priority to JP2012534577A priority patent/JP5519797B2/ja
Priority to MX2012004669A priority patent/MX336555B/es
Priority to AU2010310090A priority patent/AU2010310090B2/en
Priority to BR112012009152A priority patent/BR112012009152A2/pt
Priority to US13/503,222 priority patent/US8905274B2/en
Priority to MYPI2012001428A priority patent/MY155670A/en
Priority to PCT/EP2010/006410 priority patent/WO2011047850A1/en
Priority to UAA201206161A priority patent/UA106396C2/ru
Priority to CA2777076A priority patent/CA2777076A1/en
Priority to CN201080058966.0A priority patent/CN102665967B/zh
Publication of EP2319640A1 publication Critical patent/EP2319640A1/fr
Priority to ZA2012/02297A priority patent/ZA201202297B/en
Priority to IN2791DEN2012 priority patent/IN2012DN02791A/en
Priority to CL2012001016A priority patent/CL2012001016A1/es
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles

Definitions

  • the present invention relates to a refractory element used for the continuous casting of a liquid metal from an upstream metallurgical vessel to a downstream metallurgical vessel.
  • a nozzle used for casting the liquid steel from a distribution basin (sometimes also called a tundish) to a casting mold or mold (sometimes also called shell).
  • a distribution basin sometimes also called a tundish
  • a casting mold or mold sometimes also called shell
  • a casting nozzle In the continuous casting of steel from the distribution basin to an ingot mold, a casting nozzle is used to protect the liquid steel from chemical attack of the surrounding atmosphere as well as thermally isolating it during its transfer from the upstream container to the downstream container.
  • These generally cylindrical cylindrical shaped nozzles have an upstream end having a generally flared orifice disposed in the vicinity of the bottom of the upstream container. These nozzles are pierced right through a bore forming a pouring channel for the flow of the liquid steel to the downstream end of the nozzle which is immersed in the mold.
  • the lower end of the nozzle is closed or, at the very least, is provided with a restriction to limit the vertical flow of the steel jet and the steel debouches into the mold mainly through lateral openings (also called gills) which is provided with the downstream end of the nozzle.
  • lateral openings also called gills
  • the term "closed" nozzle end will refer to indifferently nozzles actually closed at their lower end or simply provided with such a restriction.
  • an ingot mold is used which is a bottomless mold having four side walls, generally made of copper, cooled with water, parallel in pairs and which has a generally rectangular section corresponding roughly to the width and thickness of the slab. The mold has a length significantly greater than its width.
  • the lateral openings of the lower part of the nozzle are normally arranged symmetrically relative to each other in order to allow a homogeneous flow in the mold.
  • the lateral openings never open directly opposite the long walls of the mold which are also closest to the nozzle, otherwise, the liquid steel discharged from the distribution basin and therefore still at high temperature, would come into direct contact with the long walls, would cause excessive heating and, after a while, the melting of the copper walls. The result would be a steel breakthrough with disastrous consequences for both the facility and the staff.
  • the lateral openings of the nozzle are oriented towards the narrow walls of the mold which are also the furthest away; Thus, the steel discharged from the distribution basin, has it time to cool in contact with the previously cast steel before reaching the walls.
  • Such casting nozzles are wearing parts that are so heavily loaded that their service life can limit the casting time.
  • these nozzles can be clogged with alumina deposits, chemically eroded by a steel grade or a particularly aggressive slag, cracked as a result of thermal or mechanical shock.
  • nozzle delivery and exchange devices have been developed.
  • the immersed nozzle, hitherto made of a single piece and extending from the bottom wall of the distribution basin to the core of the mold is replaced by an assembly comprising on the one hand an internal nozzle ( corresponding to the upper portion of the submerged nozzle) conveying the steel through the bottom wall of the tundish and secondly a pouring nozzle (corresponding to the lower portion of the submerged nozzle) for transferring the steel in the mold.
  • the inner nozzle and the casting nozzle are made of one piece, but they can also result from an assembly, for example a plate and a tube. The plate can also be cast around a prefabricated tube. In the pouring position, the casting channels of the inner nozzle and the casting nozzle communicate fluidly.
  • the downstream end of the inner nozzle consists of a plate provided with an orifice and which can be applied sealingly against another plate also provided with an orifice constituting the upstream end of the casting nozzle.
  • the two plates make it possible, on the one hand, to seal the connection between the two nozzles and, on the other hand, to slide the pouring nozzle from a waiting position to a pouring position.
  • These plates are generally rectangular in shape so as to be able to slide in the guiding system, in the context of the present description, reference will be made to this general rectangular shape, although in practice the plate deviates from this shape, for example if it has rounded or truncated corners.
  • the plate will be circumscribed by a rectangle which has four sides intersecting at right angles and whose opposite sides are parallel two by two. It will be noted in passing that the casting nozzle slides in the guide system in a direction parallel to a pair of sides which also corresponds to the direction given by an axis passing to the center of gravity of the lateral openings (axis of the gills). It will also be noted that in certain cases, the lateral openings of the nozzle are deliberately shifted so that they are not exactly oriented towards the narrow walls of the mold. For example, one can shift the axis of gills up to 25 ° to promote the circulation of steel in the mold to improve the homogeneity of the cast product.
  • the casting is operated through the inner nozzle and a first casting nozzle whose bores communicate.
  • the device slides a new casting nozzle, previously in the waiting position, on a guide system comprising guide rails to the casting position.
  • the new casting nozzle drives the casting nozzle to be replaced.
  • the plate forming the upstream end of the pouring nozzle comes to the right of the casting channel of the inner nozzle and closes it.
  • the European patent EP-B1-192019 is representative of such a device. This device has perfectly met the expectations of the market and has allowed a significant lengthening of the lengths of the casting sequences.
  • the regulation of the flow of cast steel and especially the interruption of the casting at the end of the casting sequence is achieved by means of a stopper actuated from the top of the distribution basin, whose body passes through the bath of liquid steel and whose nose is adapted to the shutter of the inlet of the inner nozzle.
  • casting operators may be faced with emergency situations in which the casting must be stopped without any delay.
  • emergency situations in which the casting must be stopped without any delay.
  • the state of the art recommends in this case the use of a blind plate taking the place of the new nozzle.
  • the blind plate arrives in the casting position (which should rather be called closed position)
  • the downstream orifice of the inner nozzle is thus obstructed by said plate and the casting sequence is interrupted.
  • the casting operators generally leave this blind plate permanently in the waiting position on the guide system so that it can slide it into the closed position immediately if necessary.
  • the casting nozzle needs to be replaced, it is then necessary to remove the blind plate and replace it with a new nozzle.
  • An emergency situation occurring precisely at this time usually leads to a major incident because before the casting can be stopped by means of the blind plate, it is necessary to disengage the new nozzle from the guide system, to move it away from the installation. casting, recover the blind plate, arrange it on the guide system and slide it in the closed position. Precious seconds are thus lost and can lead to the impossibility of interrupting the sequence, the device having been damaged meanwhile or no longer accessible to operators.
  • An object of the present invention is to provide a solution to these problems.
  • a casting nozzle comprising at one end, said upstream end, a plate of generally rectangular shape with an upper surface and a lower surface, and a tube, the axis of the tube being substantially orthogonal to the upper surface of the plate, the tube extending from the lower surface of said plate to an opposite end of the nozzle, said downstream end.
  • the nozzle comprises a pouring channel consisting of an inlet orifice formed through the surface of the plate, a bore in the plate, a bore in the tube, the downstream end of the tube being closed and the pouring channel opening close to the downstream end by openings formed in the side walls of the tube.
  • the orifice of the plate, the bores of the plate and the tube and the gills are in fluid connection, the gills being disposed symmetrically on either side of the axis of the tube, the centers of the gills of part and of another axis defining an axis, said gill axis, substantially orthogonal to the axis of the tube, the axis of the gills being substantially parallel to a pair of sides of the plate.
  • the orifice is oblong and has a major axis and a small axis, the minor axis of the orifice being parallel to the axis of the gills.
  • major axis will be used to denote the largest dimension of the pouring orifice and the term “minor axis”, its largest dimension in a direction perpendicular to the major axis, even if the "axes" in question are not axes of symmetry.
  • the orifice of the pouring channel in the upper surface of the plate it is possible to close the casting channel very quickly by making sliding the casting nozzle so that a portion of the plate having no orifice comes to the right of the orifice of the pouring channel formed in the lower end of the inner nozzle.
  • the shape of the pouring channel orifice reduces the distance to be traveled by the nozzle from a full open position to a full closed position. Therefore, at equal speed of displacement and identical section, the closure of the casting channel will be operated more quickly than for a nozzle with a circular orifice as described above. The operator thus gains precious time for the interruption of the casting.
  • the major axis of the oblong orifice is off-center with respect to the sides of the rectangle perpendicular to the axis of the gills.
  • the use of the surface of the plate is optimized. It is thus possible to close the casting channel even with a reduced size plate.
  • the plate is dimensioned so as to leave a sufficient margin of safety between the pouring orifice and the periphery of the plate, between the pouring orifice and the zone of the plate intended to close the orifice of the internal nozzle. and between this closure zone and the periphery.
  • a minimum distance of about 30 mm, preferably 40 mm or even 50 mm between the periphery of the casting orifice and the periphery of the plate is recommended to leave a minimum distance of about 30 mm, preferably 40 mm or even 50 mm between the periphery of the casting orifice and the periphery of the plate.
  • This distance may be less between the periphery of the orifice and the sides of the plate parallel to the axis of the gills when the thrust exerted by the feed and exchange device (in particular the guide rails) on the pouring nozzle is generally distributed along these sides near the pouring orifice.
  • a safety distance of 20 to 30 mm can suffice.
  • the plate itself must have a dimension in the direction corresponding to the axis of gills equal to twice the size of the minor axis of the orifice (to accept the pouring orifice and the closing zone) increased by margins of security.
  • this dimension of the plate will be at least three times the size of the minor axis of the orifice.
  • the oblong hole may take any elongate shape, for example, rectangular, oval, elliptical, circular arcs connected by straight segments, etc. From a purely geometric point of view, the rectangular shape which is the one that allows to have the most important passage section for a given dimension of small axis would be the most advantageous. However, for reasons of ease of manufacture, it is preferred to give it the shape of arcs of circles connected by segments of the line. Even more advantageously, the tap hole will be shaped with two arcs of circles whose radii are identical and correspond to twice the distance separating their connected centers by parallel straight segments.
  • this shape as a circle (whose diameter perpendicular to the axis of the gills corresponds to the long axis of the oblong orifice) whose sides would have been truncated along parallel ropes (perpendicular to the axis of the gills) whose spacing corresponds to the minor axis.
  • the pouring channel comprises the orifice of the plate, the bores of the plate and the tube and the gills in fluid connection. It is therefore necessary to successively connect these different elements so that the jet that enters the oblong casting orifice with a particular orientation outlets gills that are oriented in a perpendicular direction.
  • Different embodiments of the casting channel allowing a change of orientation of the jet can be envisaged. This change of direction can be made either abruptly or progressively along the path of the molten steel in the pouring channel. In the first case, it can be operated upon entry into the casting nozzle or rather near the gills.
  • the casting channel passes abruptly (over a distance of between 20 and 50 mm from the upper surface of the upstream plate of the nozzle) from an oblong section to a section circular. This sudden change has the effect of partially offsetting the depression generated by the passage of steel into the casting nozzle and tending to draw air through the surface seal between the inner nozzle and the casting nozzle.
  • the inner nozzle which is the part directly upstream of the casting nozzle according to the present invention, has an outlet orifice substantially identically shaped to the inlet orifice of the pouring channel in the nozzle to minimize disturbances of the steel flow at the interface between these two casting elements.
  • Another object of the invention therefore relates to an assembly of a pouring nozzle according to the present invention and an internal nozzle, the internal nozzle having a plate at one end, said downstream end, provided with an orifice of discharge, the seal between the casting nozzle and the inner nozzle being formed by joining the downstream plate of the inner nozzle and the upstream plate of the casting nozzle.
  • the discharge orifice of the inner nozzle is shaped substantially the same as the inlet of the pouring channel in the casting nozzle, so that in the casting position both ports communicate fluidly.
  • FIGS. Figures 1 and 2 We can see schematically represented on Figures 1 and 2 a mold 10 of generally rectangular shape each having two long sides 12, 12 'and two small sides 14, 14'. There is shown in the center of the mold a pouring nozzle viewed from above, which therefore only shows the upper surface 16 provided with a pouring orifice 18. The details of the feed and exchange device are not visible on these figs. In each ingot mold, the direction of sliding of the casting nozzle in the nozzle feeding and exchange device is also shown. It will be appreciated that the discharge ports of the casting nozzle shown in FIGS. Figures 1 and 2 are aligned in a direction parallel to the sliding direction 20.
  • the casting orifice 18 of the nozzle known from the state of the art ( Fig.1 ) is circular and centered with respect to the upper surface 16
  • the casting orifice 18 of the casting nozzle according to the invention ( Fig. 2 ) has an oblong shape.
  • the orifice is elongate in a direction perpendicular to the sliding direction of the nozzle and therefore perpendicular to the direction of the gills (not shown).
  • This oblong orifice 18 is off-center in the direction of sliding and is at the front of the plate in this direction.
  • FIGS. 3 and 4 show the details of a casting nozzle 30 according to a particular embodiment of the invention.
  • the two figures represent the same casting nozzle 30 comprising at its upstream end 32, a plate 34 of generally rectangular shape with an upper surface 16 and a lower surface.
  • the nozzle 30 also comprises a tube 38 whose axis 40 is substantially orthogonal to the upper surface 16 of the plate 34.
  • the tube 38 extends from the lower surface of the plate 34 to the downstream end 36 of the nozzle.
  • the nozzle comprising a pouring channel consisting of the inlet orifice 18 formed through the surface 16 of the plate 34, a bore in the plate 34, a bore 50 in the tube 38; the downstream end 36 of the tube is closed and the pouring channel opens near the downstream end 36 by openings 46,46 'formed in the side walls of the tube 38.
  • the orifice of the plate 34, the bores of the plate and the tube and the openings being in fluid connection.
  • the gills 46, 46 ' are arranged symmetrically on either side of the axis 40 of the tube 38.
  • the centers of the gills 46, 46' on either side of the axis 40 define an axis of the gills 48 substantially orthogonal to the axis defined by the casting channel.
  • the axis of the gills is substantially parallel to a pair of sides of the plate 34.
  • the orifice 18 is oblong and has a major axis 42 and a minor axis 44.
  • the minor axis 44 of the orifice 18 is parallel to the axis 48 of the gills.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Continuous Casting (AREA)
  • Nozzles (AREA)
EP09173696A 2009-10-21 2009-10-21 Busette de coulée et assemblage d'une telle busette de coulée avec une busette interne Withdrawn EP2319640A1 (fr)

Priority Applications (20)

Application Number Priority Date Filing Date Title
EP09173696A EP2319640A1 (fr) 2009-10-21 2009-10-21 Busette de coulée et assemblage d'une telle busette de coulée avec une busette interne
TW099135416A TWI522189B (zh) 2009-10-21 2010-10-18 澆注噴嘴及此澆注噴嘴與內噴嘴之總成
ARP100103810A AR080344A1 (es) 2009-10-21 2010-10-19 Boquilla de colada y conjunto para boquilla de colada con una boquilla interna
AU2010310090A AU2010310090B2 (en) 2009-10-21 2010-10-20 Pouring nozzle and assembly of such a pouring nozzle with an inner nozzle
MYPI2012001428A MY155670A (en) 2009-10-21 2010-10-20 Pouring nozzle and assembly of such a pouring nozzle with an inner nozzle
KR1020127012959A KR101689919B1 (ko) 2009-10-21 2010-10-20 주탕 노즐 및 이러한 주탕 노즐과 내측 노즐의 조립체
RU2012112621/02A RU2551742C2 (ru) 2009-10-21 2010-10-20 Разливочный стакан и включающий его сборочный узел
JP2012534577A JP5519797B2 (ja) 2009-10-21 2010-10-20 注入ノズル、及び注入ノズルと内部ノズルの組立体
MX2012004669A MX336555B (es) 2009-10-21 2010-10-20 Boquilla de colada y conjunto para boquilla de colada con una boquilla interna.
NZ598948A NZ598948A (en) 2009-10-21 2010-10-20 Pouring nozzle for continuous casting with an oblong inlet orifice changing abrubtly to a circular cross section tube
BR112012009152A BR112012009152A2 (pt) 2009-10-21 2010-10-20 bocal de vazamento para o lingotamento contínuo de aço e conjunto de um bocal de vazamento e um bocal interno
US13/503,222 US8905274B2 (en) 2009-10-21 2010-10-20 Pouring nozzle and assembly of such a pouring nozzle with an inner nozzle
EP10771019A EP2490845A1 (en) 2009-10-21 2010-10-20 Pouring nozzle and assembly of such a pouring nozzle with an inner nozzle
PCT/EP2010/006410 WO2011047850A1 (en) 2009-10-21 2010-10-20 Pouring nozzle and assembly of such a pouring nozzle with an inner nozzle
UAA201206161A UA106396C2 (ru) 2009-10-21 2010-10-20 Литник и сборка такого литника с внутренним стаканом
CA2777076A CA2777076A1 (en) 2009-10-21 2010-10-20 Pouring nozzle and assembly of such a pouring nozzle with an inner nozzle
CN201080058966.0A CN102665967B (zh) 2009-10-21 2010-10-20 浇钢水口和该浇钢水口与上水口的组件
ZA2012/02297A ZA201202297B (en) 2009-10-21 2012-03-29 Pouring nozzle and assembly of such a pouring nozzle with an inner nozzle
IN2791DEN2012 IN2012DN02791A (enrdf_load_stackoverflow) 2009-10-21 2012-04-02
CL2012001016A CL2012001016A1 (es) 2009-10-21 2012-04-20 Boquilla de colada de sellado rapido, para el vaciado de colada continua hacia un molde, que comprende una placa rectangular y un tubo que se proyecta verticalmente de la superficie inferior de la placa la que presenta un orificio de forma oblonga que se comunica con un canal de colada al interior del tubo y que descarga por aberturas en las paredes y el conjunto de canal de colada respectivo.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09173696A EP2319640A1 (fr) 2009-10-21 2009-10-21 Busette de coulée et assemblage d'une telle busette de coulée avec une busette interne

Publications (1)

Publication Number Publication Date
EP2319640A1 true EP2319640A1 (fr) 2011-05-11

Family

ID=42470640

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09173696A Withdrawn EP2319640A1 (fr) 2009-10-21 2009-10-21 Busette de coulée et assemblage d'une telle busette de coulée avec une busette interne
EP10771019A Withdrawn EP2490845A1 (en) 2009-10-21 2010-10-20 Pouring nozzle and assembly of such a pouring nozzle with an inner nozzle

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP10771019A Withdrawn EP2490845A1 (en) 2009-10-21 2010-10-20 Pouring nozzle and assembly of such a pouring nozzle with an inner nozzle

Country Status (19)

Country Link
US (1) US8905274B2 (enrdf_load_stackoverflow)
EP (2) EP2319640A1 (enrdf_load_stackoverflow)
JP (1) JP5519797B2 (enrdf_load_stackoverflow)
KR (1) KR101689919B1 (enrdf_load_stackoverflow)
CN (1) CN102665967B (enrdf_load_stackoverflow)
AR (1) AR080344A1 (enrdf_load_stackoverflow)
AU (1) AU2010310090B2 (enrdf_load_stackoverflow)
BR (1) BR112012009152A2 (enrdf_load_stackoverflow)
CA (1) CA2777076A1 (enrdf_load_stackoverflow)
CL (1) CL2012001016A1 (enrdf_load_stackoverflow)
IN (1) IN2012DN02791A (enrdf_load_stackoverflow)
MX (1) MX336555B (enrdf_load_stackoverflow)
MY (1) MY155670A (enrdf_load_stackoverflow)
NZ (1) NZ598948A (enrdf_load_stackoverflow)
RU (1) RU2551742C2 (enrdf_load_stackoverflow)
TW (1) TWI522189B (enrdf_load_stackoverflow)
UA (1) UA106396C2 (enrdf_load_stackoverflow)
WO (1) WO2011047850A1 (enrdf_load_stackoverflow)
ZA (1) ZA201202297B (enrdf_load_stackoverflow)

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PL2815820T3 (pl) * 2013-06-20 2017-03-31 Refractory Intellectual Property Gmbh & Co. Kg Ogniotrwały zanurzony wylew wlotowy
CN105689698A (zh) * 2016-03-09 2016-06-22 日照钢铁控股集团有限公司 异型坯连铸的制动式浸入水口
MX2019005973A (es) 2016-11-23 2019-07-10 Ak Steel Properties Inc Deflector de boquilla de colado continuo.
CN109877307B (zh) * 2017-11-10 2021-11-02 维苏威集团有限公司 自锁式内管口系统
KR102083536B1 (ko) * 2017-11-14 2020-03-02 주식회사 포스코 침지노즐 및 용강 처리방법
KR102008703B1 (ko) * 2017-12-18 2019-08-08 주식회사 포스코 연속 주조용 노즐
CN109465437A (zh) * 2018-12-15 2019-03-15 江苏盛耐新材料有限公司 一种便于更换的钢包整体式水口砖
US12110217B2 (en) 2020-02-21 2024-10-08 Michael Callahan Chain motor power distribution and control
US11359374B2 (en) * 2020-02-21 2022-06-14 Michael Callahan Leg-carriage type trusses
CN113319259B (zh) * 2021-06-07 2022-09-20 东北电力大学 一种基于空间-时序特征的黏结漏钢逻辑判断方法
CN114632927B (zh) * 2022-03-17 2024-05-14 南京高速齿轮制造有限公司 一种多断面连铸设备及多断面同一中间包连铸工艺

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GB2160952A (en) * 1984-05-11 1986-01-02 Stopinc Ag Valve plate pairs for sliding gate valves
GB2160803A (en) * 1984-06-20 1986-01-02 Stopinc Ag Sliding gate valve for the outlet of a metallurgical vessel
EP0192019B1 (fr) 1985-01-24 1990-08-22 International Industrial Engineering Sprl Dispositif d'amenée et d'échange d'un tube de coulée
US5494201A (en) 1995-01-24 1996-02-27 International Industrial Engineering S.A. Device for inserting a retractable blank shutting off plate in a device for the conveyance and exchange of a pouring tube
WO2003041894A2 (en) * 2001-11-13 2003-05-22 Vesuvius Crucible Company Multi-hole, multi-edge control plate for linear sliding gate
US7171326B2 (en) * 2002-03-25 2007-01-30 Stopinc Aktiengesellschaft Method for operating a sliding gate, and sliding gate

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CN102665967A (zh) 2012-09-12
JP2013508160A (ja) 2013-03-07
MX2012004669A (es) 2012-06-14
EP2490845A1 (en) 2012-08-29
CA2777076A1 (en) 2011-04-28
TW201124214A (en) 2011-07-16
RU2551742C2 (ru) 2015-05-27
AU2010310090B2 (en) 2014-05-08
WO2011047850A1 (en) 2011-04-28
MY155670A (en) 2015-11-13
JP5519797B2 (ja) 2014-06-11
ZA201202297B (en) 2013-06-26
KR20120098727A (ko) 2012-09-05
BR112012009152A2 (pt) 2016-08-30
RU2012112621A (ru) 2013-11-27
CL2012001016A1 (es) 2012-11-30
KR101689919B1 (ko) 2016-12-26
IN2012DN02791A (enrdf_load_stackoverflow) 2015-07-24
UA106396C2 (ru) 2014-08-26
US20120211531A1 (en) 2012-08-23
TWI522189B (zh) 2016-02-21
NZ598948A (en) 2013-01-25
MX336555B (es) 2016-01-21
AR080344A1 (es) 2012-04-04
CN102665967B (zh) 2015-05-20
AU2010310090A1 (en) 2012-04-12

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