KR101743337B1 - Keyboard structure for supporting immersion nozzle - Google Patents

Keyboard structure for supporting immersion nozzle Download PDF

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Publication number
KR101743337B1
KR101743337B1 KR1020147028079A KR20147028079A KR101743337B1 KR 101743337 B1 KR101743337 B1 KR 101743337B1 KR 1020147028079 A KR1020147028079 A KR 1020147028079A KR 20147028079 A KR20147028079 A KR 20147028079A KR 101743337 B1 KR101743337 B1 KR 101743337B1
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South Korea
Prior art keywords
immersion nozzle
horizontal direction
predetermined horizontal
opposed
inclined surface
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KR1020147028079A
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Korean (ko)
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KR20150003184A (en
Inventor
기요히로 가메다
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제이에프이 스틸 가부시키가이샤
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    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

The inclined surfaces 13 of the block members 9 of the keyboard 7 which are opposed to each other with the upper portion of the immersion nozzle 1 interposed therebetween are displaced in the predetermined horizontal direction by the immersion nozzle extrusion, 1 '), the pressure output required for the extrusion device 12 is reduced when the old immersion nozzle 1 is extruded and replaced in a predetermined horizontal direction.

Description

[0001] KEYBOARD STRUCTURE FOR SUPPORTING IMMERSION NOZZLE [0002]

The present invention relates to a keyboard structure for supporting an immersion nozzle used for continuous casting of steel, and is particularly suitable for a keyboard structure of a type in which an old immersion nozzle is extruded and replaced in a horizontal direction by a new immersion nozzle.

The continuous casting of the steel is carried out by transferring the molten steel in the ladle to the turn dish and then pouring it into the mold from the dipping nozzle again. Since the immersion nozzle is exposed to high temperature molten steel and is worn out, replace the old immersion nozzle with a new immersion nozzle. The immersion nozzle is generally exchanged by closing the upward molten steel flow path of the immersion nozzle with a sliding nozzle and extruding the old immersion nozzle in a horizontal direction with a new immersion nozzle.

In order to facilitate the replacement of the immersion nozzle and to support the flange portion of the upper end portion of the immersion nozzle by pushing it upward, a flange portion pushing member called a keyboard is generally used. The block members of this keyboard are arranged in a plurality of predetermined horizontal directions in which old dipping nozzles are extruded with new dipping nozzles and are disposed opposite to each other with an upper portion of the dipping nozzle interposed therebetween. Each of the block members is supported so as to be freely rotatable in the up-and-down direction with the pin as a center of rotation. By pushing down the end portion of the immersion nozzle opposite to the abutting end portion of the immersion nozzle with the spring member, And the flange portion abutment end of the block member is pushed upward.

For example, in Patent Document 1, when the immersion nozzle is replaced, the pressing of the upper end portion of the spring member is released in conjunction with the extrusion apparatus for extruding the old immersion nozzle with the new immersion nozzle, So that the pressure is released. By doing so, it is possible to release the pressing force of the flange portion of the block member when starting to extrude the old immersion nozzle with the new immersion nozzle, thereby facilitating the replacement of the immersion nozzle.

Japanese Laid-Open Patent Publication No. 2001-150108

However, the keyboard structure for supporting the immersion nozzle described in Patent Document 1 is complicated in structure and large-scale, for example, in a continuous casting machine already installed, a large-scale modification is required.

It is an object of the present invention to provide a keyboard structure for supporting an immersion nozzle that facilitates replacement of an immersion nozzle without requiring a large-scale modification even in a continuous casting machine already installed.

In order to solve the above problems, the present inventors have conducted extensive studies and obtained the following findings. That is, a problem in actual immersion nozzle replacement is that the extruding device for extruding the old immersion nozzle with a new immersion nozzle requires an excessive pressure output and the device is stopped. To this end, the flange portion of the block member It is sufficient to reduce the pressure output exerted on the extruding device even if the pressing of the end of the contact is not canceled.

As described above, the keyboard structure for supporting the immersion nozzle according to the present invention is characterized in that the flange portion formed at the upper end of the immersion nozzle for continuous casting is supported by being pushed upwards and arranged in plural in a predetermined horizontal direction, And an inclined surface formed on one side of the predetermined horizontal direction of the block member and downwardly directed in the predetermined horizontal direction, wherein the upper surface of the immersion nozzle is interposed between the block member and the block member, And the inclined surfaces are displaced in the predetermined horizontal direction from each other between the block members which are disposed to face each other or to be opposed to each other.

Here, the substantially opposite arrangement means that the block member is allowed to move in the predetermined horizontal direction from the position of the opposing arrangement. In the present invention, when a part of the block member is caught at the opposed position, it is regarded as substantially opposite.

When the old immersion nozzle is extruded and exchanged from one side of the predetermined horizontal direction to the other side with a new immersion nozzle, the other of the block members disposed opposite or substantially opposite to each other with the upper portion of the immersion nozzle interposed therebetween, After the flange portion of the new immersion nozzle is raised from the inclined surface of one of the block members on one side in the horizontal direction to the upper surface so that the flange portion of the new immersion nozzle is in contact with the inclined surface of the other block member on the other side in the predetermined horizontal direction, And the inclined surfaces of the block members opposed to each other or disposed substantially opposite to each other with the upper portion of the immersion nozzle interposed therebetween are displaced in the predetermined horizontal direction.

Further, the inclined surfaces are displaced in the predetermined horizontal direction by causing the block members, which are opposed or substantially opposed to each other with the upper portion of the immersion nozzle interposed therebetween, to move in the predetermined horizontal direction.

In addition, the inclined surface is shifted in the predetermined horizontal direction by changing the shape of the inclined surface between the block members which are opposed or substantially opposed to each other with the upper portion of the immersion nozzle interposed therebetween.

In this way, according to the keyboard structure for supporting the immersion nozzle of the present invention, a plurality of block members for pushing up and supporting the flange portion formed at the upper end of the immersion nozzle for continuous casting are arranged in a predetermined horizontal direction, And an upper surface of each of the block members on one side in a predetermined horizontal direction is formed with an inclined surface downward in one of the predetermined horizontal directions, and the upper surface of the block member, which is opposed to or substantially opposed to the upper surface of the immersion nozzle, The inclined surfaces of the members are displaced in a predetermined horizontal direction. With this structure, when the old immersion nozzle is extruded and replaced in a predetermined horizontal direction by a new immersion nozzle, the pressure output required for the immersion nozzle extrusion apparatus can be reduced, and the immersion nozzle can be easily replaced. In addition, even a continuous casting machine already installed is sufficient for a slight modification, so that a large-scale modification is not required.

When the old immersion nozzle is extruded and exchanged from one side of the predetermined horizontal direction to the other side with the new immersion nozzle, the inclined surface is set to the one side of the predetermined horizontal direction And the upper surface of the immersion nozzle is brought in contact with the upper surface of the immersion nozzle so that the inclined surface of the immersion nozzle is in contact with the inclined surface of the other block member on the other horizontal side in the predetermined horizontal direction The pressure output required for the immersion nozzle extruder can be surely relieved by displacing the inclined surfaces of the block members, which are opposed or approximately opposed to each other, in a predetermined horizontal direction.

In addition, it is easy to carry out the invention when the inclined surfaces of the block members are displaced in a predetermined horizontal direction by displacing the block members, which are opposed to each other with the upper portion of the immersion nozzle interposed therebetween or arranged substantially opposite to each other, in a predetermined horizontal direction.

Further, it is easy to carry out the invention by changing the shape of the inclined surfaces of the block members opposed to each other with the upper portion of the immersion nozzle interposed therebetween or displacing the inclined surfaces of the block members in a predetermined horizontal direction.

1 is a front view showing an embodiment of a sliding nozzle apparatus to which a keyboard structure for supporting an immersion nozzle of the present invention is applied.
Fig. 2 is a side view for explaining the pressing structure of the block member of the keyboard structure of Fig. 1;
Fig. 3 is an explanatory diagram ((a) plan view and (b) front view) of the layout of the block member of the keyboard structure of Fig. 1.
Fig. 4 is an explanatory view of the block member action of the keyboard structure of Fig. 3;
Fig. 5 is an explanatory diagram ((a) plan view and (b) front view) of another layout of the block member of the keyboard structure of Fig. 1;
Fig. 6 is an explanatory diagram ((a) plan view and (b) front view) of a layout of a conventional block member of a keyboard structure.

Next, an embodiment of the keyboard structure for supporting the immersion nozzle of the present invention will be described with reference to the drawings. However, the matters other than those specified in the section of the means for solving the problems are not limited to the following examples. For example, substitution by other known means is free.

1 is a front view of a sliding nozzle apparatus to which a keyboard structure for supporting an immersion nozzle of the present embodiment is applied. The upper part of the drawing is above the actual device. The sliding nozzle device supports the immersion nozzle 1 immersed in molten steel in a mold (not shown), and opens and closes a molten steel flow passage communicating with a tundish (not shown) above the immersion nozzle 1. This sliding nozzle device is constituted by stacking a plurality of nozzles in the vertical direction. The sliding nozzle 5 for opening and closing the molten steel channel is constituted with the sliding nozzle member 4 interposed between the upper fixed nozzle member 2 and the lower fixed nozzle member 3. When the nozzle holes 2a to 4a are communicated with each other as shown in the figure, the turn-dish and the immersion nozzle 1 are communicated with each other Open state). On the other hand, a sliding nozzle moving device (not shown) moves the sliding nozzle member 4 in the lateral direction of the drawing, for example, so that the nozzle hole 4a is in contact with the nozzle holes 2a, 3a of the fixed nozzle members 2, , The turning-off and the immersion nozzle 1 are in a non-combustion state (closed state).

Below the sliding nozzle 5, a rectifying nozzle 6 called a collector made of refractory is disposed. An immersion nozzle (1) is connected below the rectification nozzle (6). A nozzle hole 1a is formed in the immersion nozzle 1. The nozzle hole 1a of the immersion nozzle 1 communicates with the nozzle hole 6a of the rectification nozzle 6 so that molten steel flows into the mold I go in. The immersion nozzle 1 is pushed up by the keyboard 7 as a push-up device and pressed against the rectification nozzle 6.

A flange portion (flange portion) 8 is formed in the upper end portion of the immersion nozzle 1 and has a width expanded outward in the radial direction and has a rectangular shape in plan view. The immersion nozzle 1 is pushed against the rectification nozzle 6 by pushing it upwards by the block member 9 of FIG. As described above, in the present embodiment, the block member 9 of the keyboard 7 is positioned in a predetermined horizontal direction (in the horizontal direction) Respectively. The block member 9 is arranged so as to oppose to or substantially oppose to the opposite side sandwiching the upper portion of the immersion nozzle 1. The opposite side of the upper portion of the immersion nozzle 1 in the direction perpendicular to the paper is likewise pushed upward .

Fig. 2 is a side view showing the upward pressing structure of the block member 9 of the keyboard 7. Fig. Because of the side view, the predetermined horizontal direction described above is the vertical direction of the drawing, and the horizontal direction of the drawing is the orthogonal direction in the predetermined horizontal direction. As described above, the block member 9 of the keyboard 7 is opposed to or substantially opposite to the predetermined horizontal direction with the upper portion of the immersion nozzle 1 interposed therebetween. In the present embodiment, the block member 9 of the keyboard 7 is elongated in the direction orthogonal to the predetermined horizontal direction, and the central portion of the block member 9 is hooked so as to be freely rotatable by the pin 10. [ 2 is an end portion of the immersion nozzle 1 abutting against the flange portion 8 of the immersion nozzle 1 so that the end portion of the block member 9 opposite to the abutment end portion of the flange portion is held by the spring member 11 Push it down from above. As a result, the flange abutting end of the block member 9 is urged upward.

As described above, the immersion nozzle 1 which is exposed to molten steel at high temperature is worn out. Therefore, for example, the immersion nozzle 1 is replaced with a new one at predetermined intervals. 1, the new immersion nozzle 1 'on the left side of the drawing is pushed in the above-mentioned predetermined horizontal direction by the extruding device 12, and the old immersion nozzle 1' 1) is extruded. The flange portion 8 of the new immersion nozzle 1 is sequentially lifted up to the four block members 9 arranged in parallel in a predetermined horizontal direction and is pushed upward by the block member 9, ). In order to smooth the rising of the flange portion 8 of the immersion nozzle 1 'to the block member 9, the left side (one side) of the predetermined horizontal direction of the block member 9 is provided with a predetermined horizontal direction And the inclined surface 13 is formed downward on the left side (one side). The block member 9 at the left end of the drawing in Fig. 1 cuts the left end portion of the figure from the size relationship of the flange portion 8 of the immersion nozzle 1 and forms the inclined surface 13 therefrom. In this embodiment, since the pushing-up force of the flange contact portion of the block member 9 is applied by the spring member 11, the flange portion 8 'of the immersion nozzle 1' The block member 9 itself is slightly pushed downward. In the present embodiment, the shapes of the inclined surfaces 13 formed in the respective block members 9 may be the same, but are not limited thereto.

Fig. 3 shows the state of the inclined surface 13 formed in the total of eight block members 9 ((a) plan view and (b) front view). The center circle in Fig. 3 (a) is the nozzle hole of the immersion nozzle.

As described above, the block members 9 are arranged so as to be opposed to each other or substantially opposed to each other with the upper part of the immersion nozzle 1 interposed therebetween. In this embodiment, the block member 9 is disposed opposite to the immersion nozzle 1 The block members 9 are displaced from each other in the predetermined horizontal direction. That is, the slope surface 13 of the block member 9, which is opposed to or substantially opposed to each other with the upper portion of the immersion nozzle 1 interposed therebetween, is displaced in a predetermined horizontal direction. When the inclined surface 13 of the block member 9 opposed to or substantially opposed to the immersion nozzle 1 in this way is displaced in a predetermined horizontal direction, the old immersion nozzle 1 ' The flange portion 8 of the new immersion nozzle 1 'is pressed against the inclined surface 13 of the block member 9, which is opposed to or substantially opposed to the flange portion 8 with the interposition of the flange portion 8 interposed therebetween, Of the block member 9 on the left side (one side) of the drawing, and then the inclined surface 13 is positioned on the predetermined horizontal direction side, the right side (the other side) Of the block member (9). The pressing output of the extrusion device 12 can be reduced by making the timing at which the flange portion 8 of the immersion nozzle 1 abuts against the inclined surface 13 of the block member 9 in a staggered manner.

In this embodiment, when the old immersion nozzle 1 is extruded and replaced from the left side (one side) to the right side (the other side) of the immersion nozzle 1 by the new immersion nozzle 1 ' The inclined surface 13 of the block members 9 which are opposed to or substantially opposed to each other with the upper portion interposed therebetween is inclined from the inclined surface 13 of one of the block members 9 on the left side After the flange portion 8 of the new immersion nozzle 1 'is raised, the inclined surface 13 is attached to the inclined surface 13 of the other block member 9 on the right side (the other side) The inclined surfaces 13 of the block members 9 opposed or substantially opposed to each other with the upper portion of the immersion nozzle 1 interposed therebetween are displaced in a predetermined horizontal direction so that the flange portions 8 of the block members 9 ' have.

When the old immersion nozzle 1 is extruded and replaced in the predetermined horizontal direction by the new immersion nozzle 1 'by the extruding device 12, the increase in the pressure output of the extrusion device 12 means that the new immersion nozzle 1' When the flange portion 8 pushes the block member 9 along the inclined surface 13 against the pushing-up force of the block member 9. Conventionally, as shown in Fig. 6 ((a) plan view and (b) front view), the slope 13 of the block member 9, which is opposed to or substantially opposed to each other with the upper portion of the immersion nozzle 1 interposed therebetween, Is not in the predetermined horizontal direction. When the inclined surface 13 of the block member 9 opposed to or substantially opposed to each other with the upper portion of the immersion nozzle 1 interposed therebetween is not displaced in a predetermined horizontal direction, when the immersion nozzle 1 is replaced, The flange portion 8 of the block member 1 is simultaneously brought into abutment against the inclined surfaces 13 of the two block members 9 which are opposed or substantially opposed to each other with the flange portion 8 interposed therebetween, The two block members 9 must be pushed downward simultaneously. A large pressure output is required for this.

On the other hand, if the inclined surface 13 of the block member 9 opposed to or substantially opposed to each other with the upper portion of the immersion nozzle 1 interposed therebetween is displaced in a predetermined horizontal direction, 13, the pressure output of the extrusion device 12 may be at least about half as long as it simultaneously abuts on the inclined surface 13 of the two block members 9. Therefore, as shown in Fig. 4, when the old immersion nozzle 1 is extruded from the left side (one side) to the right side (the other side) of the predetermined horizontal direction by the new immersion nozzle 1 ', the immersion nozzle 1 The inclined surface 13 is inclined from the inclined surface 13 of one of the block members 9 on the left side (one side) of the predetermined horizontal direction to the upper surface 13 of the other block member 9, After the flange portion 8 of the new immersion nozzle 1 'is lifted up to the slope face 13 of the other block member 9 on the right side (the other side) The inclined surfaces 13 of the block members 9 opposed to each other or disposed substantially opposite to each other with the upper portion of the immersion nozzle 1 therebetween are arranged in a predetermined horizontal direction so that the flange portions 8 of the immersion nozzle 1 ' The pressure output of the extruder 12 is always kept at a value of about It is same. For example, it is relatively easy to modify the keyboard 7 of the already installed continuous casting machine as shown in FIG. 3, and the contents of the modification are relatively small. In this way, the stopping frequency of the extrusion apparatus 12 at the time of replacing the conventional immersion nozzle was 0% at 8%, that is, no longer.

In the embodiment shown in Fig. 3, the block member 9, which is opposed or substantially opposed to each other with the upper part of the immersion nozzle 1 interposed therebetween, is displaced in the predetermined horizontal direction, The inclined surface 13 of the block member 9, which is opposed to or substantially opposed to each other with the upper portion interposed therebetween, is displaced in a predetermined horizontal direction. 5 (a) is a plan view, and Fig. 5 (b) is a front view), the block member 9 itself, which is opposed to or substantially opposed to the flange portion 8, It is possible to change the shapes of the inclined surfaces 13 formed on the block members 9 so that the block members 9 which are opposed to or substantially opposed to each other with the upper portion of the immersion nozzle 1 interposed therebetween, The inclined surface 13 of the light guide plate 13 can be displaced in a predetermined horizontal direction. Specifically, the inclined surface 13 of the block member 9 in the lower row in Fig. 5 (a) is larger than the inclined surface 13 of the block member 9 in the upper row (in the block member at the left end, The slopes are interrupted, so that the sizes are the same but apparently the positions of the slopes are shifted). Even in this way, the same effect as the embodiment shown in Fig. 3 can be obtained. Further, for example, it is easy to modify the keyboard 7 of the continuous casting machine, which has already been installed, as shown in Fig. 5, and the contents of the modification are slight.

Further, by placing the block member 9, which is opposed or substantially opposed to each other with the upper part of the immersion nozzle 1 interposed therebetween, in the predetermined horizontal direction, the upper part of the immersion nozzle 1 is opposed or opposed The method of displacing the inclined surface 13 of the block member 9 which is disposed substantially opposite to the predetermined horizontal direction of the block member 9 when the inclined surface 13 is displaced in the predetermined horizontal direction is not limited to the above.

It is also possible to change the shape of the inclined surface 13 formed on the block member 9 opposed to or substantially opposed to the immersion nozzle 1 with the upper portion interposed therebetween so that the upper portion of the immersion nozzle 1 is interposed The shape of the inclined surface 13 when the inclined surface 13 of the block member 9 opposed to or approximately opposed to the inclined surface 13 is displaced in a predetermined horizontal direction is not limited to the above.

The shapes of the block member 9 other than the inclined surfaces are not limited to those shown in the drawings.

Further, the structure of the push-up device is not limited to the one shown in the drawing, but may be a structure that transmits the force of the elastic body, the hydraulic pressure, the air pressure, the motor, etc. to the pushing-up force of the block member 9.

Industrial availability

As described above, in the keyboard structure for supporting the immersion nozzle according to the present embodiment, the block member 9 pushing the flange portion 8 formed at the upper end of the immersion nozzle 1 for continuous casting upward and supporting the block member 9 in a predetermined horizontal direction And the upper surface of the submerged nozzle 1 is disposed opposite to or substantially opposite to the other of the block members 9. The upper surface of the block member 9 on one side in a predetermined horizontal direction is provided with an inclined surface 13 And the inclined surfaces 13 of the block members 9, which are opposed or substantially opposed to each other with the upper portion of the immersion nozzle 1 interposed therebetween, are displaced in a predetermined horizontal direction. With this structure, when the old immersion nozzle 1 is extruded and replaced in the predetermined horizontal direction by the new immersion nozzle 1 ', the pressure output required for the extrusion apparatus 12 can be reduced, Can be easily exchanged, and a slight modification is sufficient even in a continuous casting machine already installed, so that a large-scale modification is not required.

When the old immersion nozzle 1 is extruded and exchanged from one side of the predetermined horizontal direction to the other side with the new immersion nozzle 1 ' The flange portion 8 of the new immersion nozzle 1 'from the inclined face 13 to the upper face 14 of one of the block members 9 on one side in the predetermined horizontal direction among the members 9 The immersion nozzle 1 is rotated so that the slope 13 of the other block member 9 on the other horizontal side in the predetermined horizontal direction abuts the flange portion 8 of the new immersion nozzle 1 ' The pressure output required for the extruding device 12 can reliably be reduced by displacing the inclined surfaces 13 of the block members 9, which are opposed to each other with the upper portion of the block member 9 disposed substantially opposite to each other, in a predetermined horizontal direction.

1, 1 ': immersion nozzle
2: upper fixing nozzle member
3: Lower fixed nozzle member
4: Sliding nozzle member
5: Sliding nozzle
6: rectification nozzle
7: Keyboard
8: flange portion
9: Block member
10: pin
11: spring member
12: Extrusion device
13:
14: upper surface
1a to 4a, 6a: nozzle holes of each nozzle

Claims (4)

delete A block member which is supported by a flange portion formed at an upper end of an immersion nozzle for continuous casting and which is supported by being pushed upwards and arranged in plural in a predetermined horizontal direction and is opposed to or substantially opposed to each other with an upper portion of the immersion nozzle interposed therebetween;
Wherein each of the block members has an inclined surface formed on one side of the predetermined horizontal direction and an upper surface connected to the other side of the inclined surface in the predetermined horizontal direction,
When the old immersion nozzle is extruded and exchanged from one side of the predetermined horizontal direction to the other side with a new immersion nozzle, the inclined surface is inclined to the predetermined horizontal direction among the block members which are opposed or substantially opposed to each other with the upper portion of the immersion nozzle interposed therebetween After the flange portion of the new immersion nozzle is raised from the inclined surface of one of the block members on one side to the upper surface so that the flange portion of the new immersion nozzle abuts on the inclined surface of the other block member on the other side of the predetermined horizontal direction, And the inclined surfaces of the block members opposed to each other or disposed substantially opposite to each other with the upper portion of the nozzle interposed therebetween are displaced in the predetermined horizontal direction. A block member which is supported by a flange portion formed at an upper end of an immersion nozzle for continuous casting and which is supported by being pushed upwards and arranged in plural in a predetermined horizontal direction and is opposed to or substantially opposed to each other with an upper portion of the immersion nozzle interposed therebetween;
Wherein each of the block members has an inclined surface formed on one side of the predetermined horizontal direction and an upper surface connected to the other side of the inclined surface in the predetermined horizontal direction,
Wherein the inclined surface is displaced in the predetermined horizontal direction by displacing the block members, which are opposed or substantially opposed to each other with the upper portion of the immersion nozzle interposed therebetween, in the predetermined horizontal direction. A block member which is supported by a flange portion formed at an upper end of an immersion nozzle for continuous casting and which is supported by being pushed upwards and arranged in plural in a predetermined horizontal direction and is opposed to or substantially opposed to each other with an upper portion of the immersion nozzle interposed therebetween;
Wherein each of the block members has an inclined surface formed on one side of the predetermined horizontal direction and an upper surface connected to the other side of the inclined surface in the predetermined horizontal direction,
Wherein the inclined surface is displaced in the predetermined horizontal direction by changing the shape of the inclined surface between the block members which are opposed or substantially opposed to each other with the upper portion of the immersion nozzle interposed therebetween.
KR1020147028079A 2012-04-09 2012-04-09 Keyboard structure for supporting immersion nozzle KR101743337B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/060193 WO2013153675A1 (en) 2012-04-09 2012-04-09 Keyboard structure for supporting immersion nozzle

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KR20150003184A KR20150003184A (en) 2015-01-08
KR101743337B1 true KR101743337B1 (en) 2017-06-02

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WO (1) WO2013153675A1 (en)

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Publication number Priority date Publication date Assignee Title
JP6402122B2 (en) * 2016-02-01 2018-10-10 東京窯業株式会社 Immersion nozzle changer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000263197A (en) * 1999-03-11 2000-09-26 Toshiba Ceramics Co Ltd Nozzle for continuous casting

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992000821A1 (en) * 1990-07-04 1992-01-23 International Industrial Engineering S.A. Improved pouring tube insertion and replacement device
ES2311518T3 (en) * 2001-05-21 2009-02-16 Krosaki Harima Corporation DEVICE FOR CHANGE OF DIVING TOWELS, DIP TOWER AND CLOSURE PLATE USED FOR THE SAME.
JP4669888B2 (en) * 2008-01-16 2011-04-13 品川リフラクトリーズ株式会社 Immersion nozzle support exchange mechanism
CN201644782U (en) * 2010-03-15 2010-11-24 田陆 Nozzle fixing device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000263197A (en) * 1999-03-11 2000-09-26 Toshiba Ceramics Co Ltd Nozzle for continuous casting

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WO2013153675A1 (en) 2013-10-17
KR20150003184A (en) 2015-01-08
CN104203453A (en) 2014-12-10

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