WO2011000468A1 - Pouring nozzle - Google Patents

Pouring nozzle Download PDF

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Publication number
WO2011000468A1
WO2011000468A1 PCT/EP2010/003520 EP2010003520W WO2011000468A1 WO 2011000468 A1 WO2011000468 A1 WO 2011000468A1 EP 2010003520 W EP2010003520 W EP 2010003520W WO 2011000468 A1 WO2011000468 A1 WO 2011000468A1
Authority
WO
WIPO (PCT)
Prior art keywords
pouring nozzle
bearing surfaces
tubular part
pouring
nozzle according
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.)
Ceased
Application number
PCT/EP2010/003520
Other languages
French (fr)
Inventor
Benno Steiner
Christoph Eglsäer
Wilhelm Janko
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.)
Refractory Intellectual Property GmbH and Co KG
Original Assignee
Refractory Intellectual Property GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41278537&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2011000468(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to AU2010268453A priority Critical patent/AU2010268453B2/en
Priority to US13/266,518 priority patent/US8887969B2/en
Priority to KR1020147000672A priority patent/KR20140011428A/en
Priority to BRPI1011243-0A priority patent/BRPI1011243B1/en
Priority to CA2762164A priority patent/CA2762164C/en
Priority to RU2011146066/02A priority patent/RU2509624C2/en
Priority to MX2011013084A priority patent/MX2011013084A/en
Priority to CN201080022341.9A priority patent/CN102427899B/en
Priority to JP2012516548A priority patent/JP5379301B2/en
Application filed by Refractory Intellectual Property GmbH and Co KG filed Critical Refractory Intellectual Property GmbH and Co KG
Priority to KR1020117029141A priority patent/KR101377870B1/en
Priority to RS20110549A priority patent/RS53047B/en
Publication of WO2011000468A1 publication Critical patent/WO2011000468A1/en
Priority to ZA2011/09363A priority patent/ZA201109363B/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B22D41/50—Pouring-nozzles
    • B22D41/56—Means for supporting, manipulating or changing a pouring-nozzle

Definitions

  • This invention relates to a pouring nozzle which nozzle serves for the transfer of a metal melt from one (upper) metallurgical vessel like a ladle to another (lower) metallurgical vessel such as a tundish.
  • such pouring nozzle is usually made of a high temperature resistance ceramic refractory material.
  • the pouring nozzle typically comprises an elongated, tubular part, defining one part of a pouring channel with a central longitudinal axis and a plate- like part, provided with a flow-through opening between its surface opposite the tubular part and its section adjacent said tubular part, wherein the flow-through opening defines a second part of said pouring channel.
  • a pouring nozzle is more or less identical, independently of whether it is used as a so called “inner pouring nozzle", installed in the said upper metallurgical vessel (e.g. a ladle) or used as an "outer pouring nozzle” following the said inner pouring nozzle in the flow direction of the metallurgical melt.
  • This "outer pouring nozzle” may be designed as a "submerged entry nozzle”. Frequently it is designed as a "pouring nozzle for a nozzle insertion and/or removal device", especially for a quick change during casting.
  • the said plate-like part When used as an "inner pouring nozzle" the said plate-like part is usually arranged at the lower end (in the flow direction of the melt) while the outer pouring nozzle is arranged vice versa when used in a tube changer.
  • In both cases means are provided for holding the nozzle precisely in the desired position.
  • Insofar known nozzles are provided with bearing surfaces along the peripheral area of said plate-like part.
  • the said plate-like part comprises, on opposite sides, two planar bearing surfaces forming an angle of 20° to 80° with the central longitudinal axis of the pouring channel.
  • the plate-like part of such pouring nozzles is held in place against a corresponding plate-like part of another refractory component.
  • This other refractory component may, for example, be a refractory plate component of a slide gate system, or may be the plate-like part of a corresponding pouring nozzle.
  • the plate-like parts are subjected to different levels of thermal expansion in the region adj acent to the pouring channel and the region most distant from the pouring channel. This can cause the otherwise flat plate-like part to be caused to bend to accommodate the higher level of expansion in the region of the pouring channel.
  • thermo-mechanical stresses induced by the differential expansion across the plate-like region can give rise to the propagation of micro-cracks or cracks within said plate-like part and/or in the region between said plate-like part and the adj acent tubular-like part.
  • the reduced area of contact leads to a diminished sealing between the refractory components which can allow air ingress to the molten metal stream (leading to oxidation and deterioration in the quality of the cast steel) or, conversely, leakage of molten steel.
  • pushing devices are acting on each bearing surface. These pushing devices are arranged side by side (in parallel) in a way that their respective forces of pressure are more or less parallel to each other. Each of them exercises a more or less identical force onto the corresponding part of the bearing surface.
  • these forces are not necessarily directed to the region of the plate-like part around the pouring channel to which the contact area is restricted and where the thermo-mechanically stresses are greatest. This limitation is overcome by the design of pouring nozzles of the present invention wherein the respective bearing surfaces are curved instead of planar.
  • Applicant's invention provides a pouring nozzle of the type mentioned with improved stress distribution in the plate and focussing the pushing forces towards the area around the pouring channel.
  • the invention replaces the planar bearing surface according to prior art by a curved bearing surface, including a bearing surface being curved with respect to the central longitudinal axis of the pouring channel. This makes it possible to exert pressure forces in a more concentric manner (with respect to the central longitudinal axis of the pouring channel) into the refractory material.
  • each bearing surface provides at least one curvature, extending along an imaginary plane perpendicular to the direction of the central
  • the peripheral area comprises two distinct bearing surfaces and two planar surface sections arranged parallel to each other and between said two distinct bearing surfaces.
  • the peripheral area of the plate-like part is as follows: One curved bearing surface is followed by a planar surface section, which then is followed by the second curved bearing surface and the latter then again followed by a planar surface section.
  • the plate ⁇ ke part typically is of rectangulai /squcu c shape (seen from above). A corresponding design is shown in the attached drawings.
  • the said curvature of the bearing surfaces may be of a constant radius or can vary along the bearing surface. This enables to provide radial forces from the pushing devices into the plate like section of the nozzle.
  • the design described above presents a nozzle with two bearing surfaces each of which being characterized by a curvature along an imaginary plane, which imaginary plane is perpendicular or inclined respectively to the direction of the central longitudinal axis of the pouring channel.
  • This design includes embodiments wherein a radius R 2 or R 3 of said curvature is larger than the diameter D of the flow through opening (bore), e.g. more than 2 times larger or more than 3 times larger, more than 5 times larger or more than 10 times larger.
  • each of said two bearing surfaces may in addition provide a curvature, extending along an imaginary plane
  • Said second type of curvature may be of constant radius between its end opposite the tubular part and said section adjacent said tubular part but typically it will have different radiuses along its extension. This includes an embodiment wherein said second curvature extends only partially between one end of the plate-like part opposite the tubular part and its second end adjacent said tubular part.
  • the said bearing surfaces, curved all over its area and/or along a part of it may provide a shape which corresponds at least partially to a partial surface (segment) of one of the following geometrical shapes: cylinder, paraboloid, cone, dome, toroid.
  • the shape of said bearing surfaces may correspond at least partially to at least one of the following geometrical shapes :
  • bearing surface in the longitudinal section may be linear.
  • the said plate-like part has a smaller cross sectional area at its section adj acent said tubular part than at its end opposite said tubular part.
  • the said pouring nozzle may be made of a ceramic refractory material and designed as one piece (so called monotube). It may also be made of separate parts, for example the tubular part and the plate-like part which are then fixed to each other by a common outer metallic envelope and/or a bondi ng agent (an adhesive).
  • the nozzle and/or its parts may be pressed isostatically.
  • Figure 1 a 3 -dimenional view of a pouring nozzle
  • Figure 2 a longitudinal sectional view of the nozzle in accordance with
  • Figure 3 a cross-sectional view of the nozzle in accordance with Figures
  • Figure 4 a 3-dimensional view of a second embodiment
  • Figure 5 a longitudinal sectional view of the nozzle in accordance with
  • Figure 6 a longitudinal sectional view of a third embodiment.
  • the pouring nozzle comprises an elongated, tubular part 10, defining a lower part of a pouring channel 12 with a central
  • the flow-through opening 16 defines an upper part 12o of the pouring channel 12.
  • the peripheral area 22 between said surface 1 8 and said section 20 comprises four segments, namely two inclined bearing surfaces 24, opposite to each other, and two planar surface sections 26, arranged opposite and parallel to each other between said two distinct bearing surfaces 24.
  • Each bearing surface 24 is curved with respect to the central longitudinal axis L of the pouring channel 12, as may be best seen from figure 3.
  • the curvature is therefore concave with respect to the central longitudinal axis L and in view of the opposite arrangement of the bearing surfaces 24 the said bearing surfaces are arranged inversely to each other.
  • Fig. 2 the diameter of the flow-through opening 16 is marked as D while the radius of the corresponding curved bearing surface 24 is marked as R 3 with R 3 > D.
  • Radius R 3 lies in a plane inclined to the longitudinal axis L of pouring channel 12.
  • Radius R 4 of curved bearing surface describes the design along the longitudinal sectional view of this figure.
  • Each bearing surface 24 provides an additional curvature extending in a direction from said surface 18 to said section 20 as may be seen best from figure 2.
  • Said additional curvature has the shape of a quadrant and is arranged at a distance from said surface 18, as may been seen from Fig. 2.
  • the peripheral area 22 of plate-like part 14 and the adjacent upper section of tubular part 10 are enclosed by a metallic envelope 28, which is shrunk or cemented onto the corresponding surface sections.
  • the shown nozzle with tubular part 10 and plate-like part 14 was pressed isostatically to provide a monolithic ceramic refractory body (monotube design) before the metallic envelope 28 was fitted as described.
  • It may be used as an outer nozzle (in the orientation according to Fig. 1 , 2) or as an inner nozzle by inverting through 180° or upside down.
  • Pushing device 30m is arranged in such a way so that its pushing force, characterized by arrow P m is exactly directed towards the central
  • Pushing devices 301 and 30r on opposite sides with respect to pushing device 30m are arranged such that their corresponding pushing forces Pi, P r as transmitted by the bearing surfaces 24 through the plate-like part 14 do not run parallel to pushing force P m but slightly inclined towards the central longitudinal axis L without running through it.
  • This arrangement secures an increased and optimized fixation as well as optimized centering of the nozzle within a corresponding (not shown) clamping device while at the same time decreasing the risk of crack formation within the ceramic refractory material of plate-like part 14.
  • the said pushing devices 301, 30m and 3Or are further arranged in such a way that the resulting thrust forces are applied with a vertical component in the direction of surface 18.
  • Fig. 4 and 6 two alternative embodiments are shown.
  • the bearing surfaces 24 of the nozzle are part of a frustocone.
  • the longitudinal cross section of the nozzle is shown in Fig. 5.
  • the mean radius of this frustocone is R 2 .
  • the longitudinal cross section according to Fig. 6 shows a similar curvature of the bearing surfaces 24 of the embodiment in Fig. 2 but the radius R 2 is in an imaginary plane perpendicular to the longitudinal axis L of pouring channel 12.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Continuous Casting (AREA)
  • Closures For Containers (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Clamps And Clips (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Medicinal Preparation (AREA)
  • Nozzles (AREA)

Abstract

The pouring nozzle comprises an elongated, tubular part (10), defining a lower part of a pouring channel (12) with a central longitudinal axis L, a plate-like part (14), provided with a flow-through opening (16) between its surface (18) opposite the tubular part (10) and its section (20) adjacent said tubular part (10). As may be seen from figure 2 the flow-through opening (16) defines an upper part (12o) of the pouring channel (12). The peripheral area (22) between said surface (18) and said section (20) comprises four segments, namely two inclined bearing surfaces (24), opposite to each other, and two planar surface sections (26), arranged opposite and parallel to each other between said two distinct bearing surfaces (24). Each bearing surface (24) is curved with respect to the central longitudinal axis L of the pouring channel (12), as may be best seen from figure 3. The curvature is therefore concave with respect to the central longitudinal axis L and in view of the opposite arrangement of the bearing surfaces (24) the said bearing surfaces are arranged inversely to each other.

Description

Pouring nozzle
D e s c r i p t i o n
This invention relates to a pouring nozzle which nozzle serves for the transfer of a metal melt from one (upper) metallurgical vessel like a ladle to another (lower) metallurgical vessel such as a tundish.
In view of the harsh conditions during metal casting (temperatures up to 1.700° C, chemical and metallurgical attack) such pouring nozzle is usually made of a high temperature resistance ceramic refractory material.
The pouring nozzle typically comprises an elongated, tubular part, defining one part of a pouring channel with a central longitudinal axis and a plate- like part, provided with a flow-through opening between its surface opposite the tubular part and its section adjacent said tubular part, wherein the flow-through opening defines a second part of said pouring channel.
Insofar the general design of a pouring nozzle is more or less identical, independently of whether it is used as a so called "inner pouring nozzle", installed in the said upper metallurgical vessel (e.g. a ladle) or used as an "outer pouring nozzle" following the said inner pouring nozzle in the flow direction of the metallurgical melt. This "outer pouring nozzle" may be designed as a "submerged entry nozzle". Frequently it is designed as a "pouring nozzle for a nozzle insertion and/or removal device", especially for a quick change during casting.
When used as an "inner pouring nozzle" the said plate-like part is usually arranged at the lower end (in the flow direction of the melt) while the outer pouring nozzle is arranged vice versa when used in a tube changer.
In both cases means are provided for holding the nozzle precisely in the desired position. Insofar known nozzles are provided with bearing surfaces along the peripheral area of said plate-like part.
According to EP 1 289 696 B l and EP 1 590 1 14 B l the said plate-like part comprises, on opposite sides, two planar bearing surfaces forming an angle of 20° to 80° with the central longitudinal axis of the pouring channel.
In use, the plate-like part of such pouring nozzles is held in place against a corresponding plate-like part of another refractory component. This other refractory component may, for example, be a refractory plate component of a slide gate system, or may be the plate-like part of a corresponding pouring nozzle. The plate-like parts are subjected to different levels of thermal expansion in the region adj acent to the pouring channel and the region most distant from the pouring channel. This can cause the otherwise flat plate-like part to be caused to bend to accommodate the higher level of expansion in the region of the pouring channel. The effect of this is that the area of contact between the plate-like parts of the pouring nozzles and their corresponding other refractory component is decreased, and becomes limited to a relatively small annular section circumscribing the pouring channel. This creates a number of risks. Firstly, the thermo-mechanical stresses induced by the differential expansion across the plate-like region can give rise to the propagation of micro-cracks or cracks within said plate-like part and/or in the region between said plate-like part and the adj acent tubular-like part. Secondly, the reduced area of contact leads to a diminished sealing between the refractory components which can allow air ingress to the molten metal stream (leading to oxidation and deterioration in the quality of the cast steel) or, conversely, leakage of molten steel.
In this respect there is a permanent demand to increase and optimize the design, the safety and/or the use of said type of nozzles.
Typically a number of pushing devices (pushing cylinders) are acting on each bearing surface. These pushing devices are arranged side by side (in parallel) in a way that their respective forces of pressure are more or less parallel to each other. Each of them exercises a more or less identical force onto the corresponding part of the bearing surface. However, these forces are not necessarily directed to the region of the plate-like part around the pouring channel to which the contact area is restricted and where the thermo-mechanically stresses are greatest. This limitation is overcome by the design of pouring nozzles of the present invention wherein the respective bearing surfaces are curved instead of planar.
Applicant's invention provides a pouring nozzle of the type mentioned with improved stress distribution in the plate and focussing the pushing forces towards the area around the pouring channel.
The invention replaces the planar bearing surface according to prior art by a curved bearing surface, including a bearing surface being curved with respect to the central longitudinal axis of the pouring channel. This makes it possible to exert pressure forces in a more concentric manner (with respect to the central longitudinal axis of the pouring channel) into the refractory material.
In its most general embodiment the invention relates to a pouring nozzle comprising the following features:
- an elongated, tubular part, defining a first part of a pouring channel with a central longitudinal axis,
- a plate-like part provided with a flow-through opening between its
surface opposite the tubular part and its section adjacent said tubular part,
- the flow-through opening defining a second part of the pouring channel,
- a peripheral area between said surface and said section comprising two bearing surfaces,
- each bearing surface provides at least one curvature, extending along an imaginary plane perpendicular to the direction of the central
longitudinal axis (L),
- said bearing surfaces are arranged inversely.
The inverse arrangement of the bearing surfaces leads to a design of the plate-like part of the pouring nozzle which may be mirror-inverted with respect to an imaginary longitudinal plane including the central
longitudinal axis of the pouring channel.
In a preferred embodiment the peripheral area comprises two distinct bearing surfaces and two planar surface sections arranged parallel to each other and between said two distinct bearing surfaces. In other words: The peripheral area of the plate-like part is as follows: One curved bearing surface is followed by a planar surface section, which then is followed by the second curved bearing surface and the latter then again followed by a planar surface section. The plate ϋke part typically is of rectangulai /squcu c shape (seen from above). A corresponding design is shown in the attached drawings.
The said curvature of the bearing surfaces may be of a constant radius or can vary along the bearing surface. This enables to provide radial forces from the pushing devices into the plate like section of the nozzle.
Depending on the curvature the pressure forces do not extend any more parallel to each other but in a converging manner.
According to another embodiment the said two bearing surfaces each provide a curvature corresponding to a parabola in a cross section
perpendicular to the central longitudinal axis of said pouring channel .
The design described above presents a nozzle with two bearing surfaces each of which being characterized by a curvature along an imaginary plane, which imaginary plane is perpendicular or inclined respectively to the direction of the central longitudinal axis of the pouring channel. This design includes embodiments wherein a radius R2 or R3 of said curvature is larger than the diameter D of the flow through opening (bore), e.g. more than 2 times larger or more than 3 times larger, more than 5 times larger or more than 10 times larger.
According to another embodiment each of said two bearing surfaces may in addition provide a curvature, extending along an imaginary plane
comprising the longitudinal axis of the pouring channel, which curvature extends in a direction from said surface opposite the tubular part to said section adjacent said tubular part.
Said second type of curvature may be of constant radius between its end opposite the tubular part and said section adjacent said tubular part but typically it will have different radiuses along its extension. This includes an embodiment wherein said second curvature extends only partially between one end of the plate-like part opposite the tubular part and its second end adjacent said tubular part.
The said bearing surfaces, curved all over its area and/or along a part of it may provide a shape which corresponds at least partially to a partial surface (segment) of one of the following geometrical shapes: cylinder, paraboloid, cone, dome, toroid.
In a longitudinal section the shape of said bearing surfaces may correspond at least partially to at least one of the following geometrical shapes :
Parabola, involute, ellipse. Alternatively the bearing surface in the longitudinal section may be linear.
Typically the said plate-like part has a smaller cross sectional area at its section adj acent said tubular part than at its end opposite said tubular part. This leads to an arrangement whereby the pushing forces applied to the bearing surfaces are directed in part upwardly (for the outer pouring nozzle) or downwardly (for the inner pouring nozzle), respectively. In other words: The pushing forces have a vector component in the direction of the corresponding surface of the respective plate like part in order to improve the tightness of said surface to the adjacent component of the system, e.g. a sliding plate of a slide gate valve or the surface of a second nozzle.
In addition the curvature of the bearing surfaces will for all pushing devices concentrate a part of said vector component in the direction of the pouring channel and thereby minimizing the risks arisen from the reduced area of contact created by the differential thermal expansion of the plate like part in use. The said pouring nozzle may be made of a ceramic refractory material and designed as one piece (so called monotube). It may also be made of separate parts, for example the tubular part and the plate-like part which are then fixed to each other by a common outer metallic envelope and/or a bondi ng agent (an adhesive).
The nozzle and/or its parts may be pressed isostatically.
Further features of the invention may be derived from the other application documents and/or the sub claims.
The invention will be described in more detail in accordance with the attached drawings. These drawings schematically show the following:
Figure 1 : a 3 -dimenional view of a pouring nozzle,
Figure 2 : a longitudinal sectional view of the nozzle in accordance with
Fig. 1.
Figure 3 : a cross-sectional view of the nozzle in accordance with Figures
1 , 2 in the area of pushing devices (C-C of Fig. 2), Figure 4: a 3-dimensional view of a second embodiment,
Figure 5: a longitudinal sectional view of the nozzle in accordance with
Fig. 4,
Figure 6: a longitudinal sectional view of a third embodiment.
Identical parts or parts providing the same function are designated by same numerals.
According to Fig. 1 the pouring nozzle comprises an elongated, tubular part 10, defining a lower part of a pouring channel 12 with a central
longitudinal axis L, a plate-like part 14, provided with a flow-through opening 1 6 between its surface 1 8 opposite the tubular part 10 and its section 20 adjacent said tubular part 10. As may be seen from figure 2 the flow-through opening 16 defines an upper part 12o of the pouring channel 12.
The peripheral area 22 between said surface 1 8 and said section 20 comprises four segments, namely two inclined bearing surfaces 24, opposite to each other, and two planar surface sections 26, arranged opposite and parallel to each other between said two distinct bearing surfaces 24.
Each bearing surface 24 is curved with respect to the central longitudinal axis L of the pouring channel 12, as may be best seen from figure 3. The curvature is therefore concave with respect to the central longitudinal axis L and in view of the opposite arrangement of the bearing surfaces 24 the said bearing surfaces are arranged inversely to each other.
In Fig. 2 the diameter of the flow-through opening 16 is marked as D while the radius of the corresponding curved bearing surface 24 is marked as R3 with R3 > D. Radius R3 lies in a plane inclined to the longitudinal axis L of pouring channel 12. Radius R4 of curved bearing surface describes the design along the longitudinal sectional view of this figure.
Each bearing surface 24 provides an additional curvature extending in a direction from said surface 18 to said section 20 as may be seen best from figure 2. Said additional curvature has the shape of a quadrant and is arranged at a distance from said surface 18, as may been seen from Fig. 2.
The peripheral area 22 of plate-like part 14 and the adjacent upper section of tubular part 10 are enclosed by a metallic envelope 28, which is shrunk or cemented onto the corresponding surface sections. The shown nozzle with tubular part 10 and plate-like part 14 was pressed isostatically to provide a monolithic ceramic refractory body (monotube design) before the metallic envelope 28 was fitted as described.
It may be used as an outer nozzle (in the orientation according to Fig. 1 , 2) or as an inner nozzle by inverting through 180° or upside down.
As may be seen from figures 1 and 3 three pushing devices 301, 30m and 30r are arranged along each of said bearing surfaces 24 in a row.
Pushing device 30m is arranged in such a way so that its pushing force, characterized by arrow Pm is exactly directed towards the central
longitudinal axis L of the pouring channel 12.
Pushing devices 301 and 30r on opposite sides with respect to pushing device 30m are arranged such that their corresponding pushing forces Pi, Pr as transmitted by the bearing surfaces 24 through the plate-like part 14 do not run parallel to pushing force Pm but slightly inclined towards the central longitudinal axis L without running through it.
This arrangement secures an increased and optimized fixation as well as optimized centering of the nozzle within a corresponding (not shown) clamping device while at the same time decreasing the risk of crack formation within the ceramic refractory material of plate-like part 14.
As may be seen from figures 1 and 2 the said pushing devices 301, 30m and 3Or are further arranged in such a way that the resulting thrust forces are applied with a vertical component in the direction of surface 18.
In Fig. 4 and 6 two alternative embodiments are shown. In Fig. 4 the bearing surfaces 24 of the nozzle are part of a frustocone. The longitudinal cross section of the nozzle is shown in Fig. 5. The mean radius of this frustocone is R2. The longitudinal cross section according to Fig. 6 shows a similar curvature of the bearing surfaces 24 of the embodiment in Fig. 2 but the radius R2 is in an imaginary plane perpendicular to the longitudinal axis L of pouring channel 12.

Claims

Pouring nozzle c l a i m s
1 . Pouring nozzle comprising the following features: a) an elongated, tubular part ( 10), defining a first part ( 12u) of a pouring channel (12) with a central longitudinal axis (L),
b) a plate like part ( 14), provided with a flow-through opening ( 16) between its surface ( 18) opposite the tubular part ( 10) and its section (20) adjacent said tubular part (10),
c) the flow-through opening (16) defining a second part (12o) of the pouring channel ( 12),
d) a peripheral area (22) between said surface (18) and said section (20) comprising two bearing surfaces (24),
e) each bearing surface (24) provides at least one curvature, extending along an imaginary plane perpendicular to the direction of the central longitudinal axis (L),
f) said bearing surfaces (24) are arranged inversely.
2. Pouring nozzle according to claim 1 , wherein each bearing surface (24) provides a curvature extending along an imaginary plane comprising the central longitudinal axis (L).
3. Pouring nozzle according to claim 1 , including a peripheral area (22) comprising
a) two distinct bearing surfaces (24) and
b) two planar surface sections (26) arranged parallel to each other and between said two distinct bearing surfaces (24).
4. Pouring nozzle according to claim 1 , wherein each of said two bearing surfaces (24) provides a curvature of constant radius.
5. Pouring nozzle according to claim 1 , wherein each of said two bearing surfaces (24) provides a curvature, corresponding to a parabola in a cross section perpendicular to the direction of the central longitudinal axis (L) of said pouring channel ( 12).
6. Pouring nozzle according to claim 1 , wherein each of said two bearing surfaces (24) provides a curvature along an imaginary plane perpendicular to the direction of the central longitudinal axis (L) of the pouring channel ( 12) with a radius R2 being at least 2 times larger than the diameter D of the flow through opening (16).
7. Pouring nozzle according to claim 1 , wherein each of said two bearing surfaces (24) provides said curvature, extending along an imaginary plane comprising the central longitudinal axis (L) of the pouring channel ( 12) which curvature extends in a direction from said surface ( 18) opposite to the tubular part ( 10) to said section (20) adjacent said tubular part ( 10) such that the bearing surfaces are part of a funnel shape.
8. Pouring nozzle according to claim 7, wherein said curvature is of constant radius between its end opposite the tubular part ( 10) and said section (20) adjacent said tubular part ( 10).
9. Pouring nozzle according to claim 7, wherein said curvature extends partially between its end opposite the tubular part ( 10) and said section (20) adjacent said tubular part (10).
10. Pouring nozzle according to claim 1 or 2, wherein each of said bearing surfaces (24) provides a shape which corresponds to a partial surface of one of the following geometrical shapes: paraboloid, cone, dome, cylinder, torus.
1 1 . Pouring nozzle according to claim 2, wherein each of said bearing surfaces (24) provides a shape, which corresponds, in a longitudinal section of the pouring nozzle, to at least one of the following geometrical shapes: parabola, involute.
12. Pouring nozzle according to claim 1 , wherein the said plate like part ( 14) has a smaller cross sectional area at said section (20) adjacent said tubular part (10) than at its end opposite the tubular part ( 10).
13. Pouring nozzle according to claim 1 made of ceramic refractory material and designed as a one piece monolithic.
14. Pouring nozzle according to claim 1 , wherein the said plate-like part ( 14) and the said tubular part (10) are isostatically pressed parts.
1 5. Pouring nozzle according to claim 1 , surrounded at least partially, by a metal lic envelope (28).
PCT/EP2010/003520 2009-07-01 2010-06-11 Pouring nozzle Ceased WO2011000468A1 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
RS20110549A RS53047B (en) 2009-07-01 2010-06-11 EXHAUST JET
MX2011013084A MX2011013084A (en) 2009-07-01 2010-06-11 Pouring nozzle.
KR1020147000672A KR20140011428A (en) 2009-07-01 2010-06-11 Pouring nozzle
BRPI1011243-0A BRPI1011243B1 (en) 2009-07-01 2010-06-11 SPILL NOZZLE
CA2762164A CA2762164C (en) 2009-07-01 2010-06-11 Pouring nozzle
RU2011146066/02A RU2509624C2 (en) 2009-07-01 2010-06-11 Teeming barrel
CN201080022341.9A CN102427899B (en) 2009-07-01 2010-06-11 Pouring Nozzle
AU2010268453A AU2010268453B2 (en) 2009-07-01 2010-06-11 Pouring nozzle
JP2012516548A JP5379301B2 (en) 2009-07-01 2010-06-11 Hot water nozzle
US13/266,518 US8887969B2 (en) 2009-07-01 2010-06-11 Pouring nozzle
KR1020117029141A KR101377870B1 (en) 2009-07-01 2010-06-11 Pouring nozzle
ZA2011/09363A ZA201109363B (en) 2009-07-01 2011-12-20 Pouring nozzle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP09008614.1 2009-07-01
EP09008614A EP2269751B1 (en) 2009-07-01 2009-07-01 Pouring nozzle

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WO2011000468A1 true WO2011000468A1 (en) 2011-01-06

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PCT/EP2010/003520 Ceased WO2011000468A1 (en) 2009-07-01 2010-06-11 Pouring nozzle
PCT/EP2010/003855 Ceased WO2011000517A1 (en) 2009-07-01 2010-06-30 Pressing device for a casting pipe at the spout of a metallurgical container

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PCT/EP2010/003855 Ceased WO2011000517A1 (en) 2009-07-01 2010-06-30 Pressing device for a casting pipe at the spout of a metallurgical container

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EP (2) EP2269751B1 (en)
JP (1) JP5379301B2 (en)
KR (3) KR101377870B1 (en)
CN (2) CN102427899B (en)
AR (1) AR077271A1 (en)
AT (1) ATE510641T1 (en)
AU (1) AU2010268453B2 (en)
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MX (1) MX2011013084A (en)
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RU (2) RU2509624C2 (en)
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RU2659544C1 (en) * 2017-10-24 2018-07-02 САЙНОРЕФ Интернэшнл (Исин) Ко. Лтд. Upper shell of nozzle

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CH707075B1 (en) 2012-10-11 2021-01-15 Refractory Intellectual Property Gmbh & Co Kg Slide closure for a vessel containing molten metal.
AR099467A1 (en) 2014-02-19 2016-07-27 Vesuvius Group Sa COAT SPOON COAT FOR METAL COAT, COUPLING ASSEMBLY SET TO COUPLING SUCH COVER SPOON COVERING TO A SPOON, METAL COATING INSTALLATION AND COUPLING PROCESS
CN107186202B (en) * 2014-04-22 2018-09-28 管伟 A kind of power transmission and distribution electric armour clamp molding machine
CN103934443B (en) * 2014-04-22 2017-05-03 国网山东省电力公司滨州供电公司 Power transmission and distribution power fittings forming device
ES2686746T3 (en) * 2014-05-05 2018-10-19 Refractory Intellectual Property Gmbh & Co. Kg Refractory ceramic casting nozzle
CH710652B1 (en) * 2015-01-23 2019-06-28 Refractory Intellectual Property Gmbh & Co Kg Sliding closure for a container containing molten metal.
US10478890B1 (en) 2016-06-21 2019-11-19 Nucor Corporation Methods of billet casting
CH715297A2 (en) 2018-09-04 2020-03-13 Refractory Intellectual Property Gmbh & Co Kg Procedure for the maintenance of a sliding closure on the pouring of a metallurgical vessel and a sliding closure.
EP3760340A1 (en) 2019-07-03 2021-01-06 Refractory Intellectual Property GmbH & Co. KG Device for manipulating preferably one spout at an exchange device at the outlet of a metallurgical container
WO2021110259A1 (en) 2019-12-04 2021-06-10 Refractory Intellectual Property Gmbh & Co. Kg Refractory casting nozzle for a changing device arranged at the outlet of a metallurgical vessel
EP3943212A1 (en) 2020-07-21 2022-01-26 Refractory Intellectual Property GmbH & Co. KG Sliding closure at the spout of a metallurgical vessel
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EP1590114B1 (en) * 2003-01-20 2006-03-22 Vesuvius Group S.A Pouring nozzle, pushing device for a pouring nozzle and casting installation

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Publication number Priority date Publication date Assignee Title
RU174144U1 (en) * 2016-11-28 2017-10-04 САЙНОРЕФ Интернэшнл (Исин) Ко. Лтд. FILLING GLASS CASING
RU2659544C1 (en) * 2017-10-24 2018-07-02 САЙНОРЕФ Интернэшнл (Исин) Ко. Лтд. Upper shell of nozzle

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CN102427899B (en) 2014-05-28
KR20120040193A (en) 2012-04-26
TW201102191A (en) 2011-01-16
KR20140011428A (en) 2014-01-28
KR101377870B1 (en) 2014-03-24
BRPI1011182A2 (en) 2016-12-27
BRPI1011182B1 (en) 2022-05-10
CA2762164C (en) 2013-10-01
JP5379301B2 (en) 2013-12-25
WO2011000517A1 (en) 2011-01-06
AU2010268453B2 (en) 2012-11-29
CA2762164A1 (en) 2011-01-06
JP2012531310A (en) 2012-12-10
RU2509624C2 (en) 2014-03-20
BRPI1011243B1 (en) 2021-10-26
US8887969B2 (en) 2014-11-18
EP2448700B1 (en) 2014-11-05
US20120119486A1 (en) 2012-05-17
RS53047B (en) 2014-04-30
RU2012103341A (en) 2013-08-10
CN102548687A (en) 2012-07-04
BRPI1011243A2 (en) 2016-11-29
UA99086C2 (en) 2012-07-10
AR077271A1 (en) 2011-08-17
EP2448700B8 (en) 2014-12-31
TWI454326B (en) 2014-10-01
SA110310547B1 (en) 2014-03-13
RS20110549A1 (en) 2012-08-31
US9314841B2 (en) 2016-04-19
CN102548687B (en) 2013-11-20
EP2269751B1 (en) 2011-05-25
CN102427899A (en) 2012-04-25
AU2010268453A1 (en) 2011-12-08
MX2011013084A (en) 2012-01-27
ES2364737T3 (en) 2011-09-13
PL2448700T3 (en) 2015-07-31
EP2269751A1 (en) 2011-01-05
ATE510641T1 (en) 2011-06-15
KR20120027304A (en) 2012-03-21
EP2448700A1 (en) 2012-05-09
US20120043354A1 (en) 2012-02-23
PL2269751T3 (en) 2011-09-30
RU2011146066A (en) 2013-05-20
ES2527821T3 (en) 2015-01-30
RU2545853C2 (en) 2015-04-10
KR101714808B1 (en) 2017-03-09
ZA201109363B (en) 2012-08-29
ZA201109390B (en) 2013-01-30

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