CA2110625A1 - Method of forming a gap, particularly in the metallurgical field - Google Patents
Method of forming a gap, particularly in the metallurgical fieldInfo
- Publication number
- CA2110625A1 CA2110625A1 CA002110625A CA2110625A CA2110625A1 CA 2110625 A1 CA2110625 A1 CA 2110625A1 CA 002110625 A CA002110625 A CA 002110625A CA 2110625 A CA2110625 A CA 2110625A CA 2110625 A1 CA2110625 A1 CA 2110625A1
- Authority
- CA
- Canada
- Prior art keywords
- melt
- solid body
- metal melt
- receiving plate
- vibrations
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000000161 steel melt Substances 0.000 claims description 15
- 238000007654 immersion Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 229910010293 ceramic material Inorganic materials 0.000 claims description 6
- 239000011449 brick Substances 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 230000005284 excitation Effects 0.000 claims 1
- 239000000155 melt Substances 0.000 description 15
- 230000008014 freezing Effects 0.000 description 5
- 238000007710 freezing Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 241000733322 Platea Species 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000011214 refractory ceramic Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0631—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a travelling straight surface, e.g. through-like moulds, a belt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
- B22D1/002—Treatment with gases
- B22D1/005—Injection assemblies therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/053—Means for oscillating the moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/0648—Casting surfaces
- B22D11/066—Side dams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/08—Shaking, vibrating, or turning of moulds
-
- 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
- B22D41/24—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 characterised by a rectilinearly movable plate
-
- 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
- B22D41/62—Pouring-nozzles with stirring or vibrating means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furnace Charging Or Discharging (AREA)
- Continuous Casting (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Abstract Method of forming a gap, particularly in the metallurgical field In order to prevent a connection of contacting materials, particularly a metal melt and a solid body, a method forming a gap is proposed by exciting at least one of the materials to vibrate mechanically, particularly ultrasonically.
(Figure 2)
(Figure 2)
Description
213.~6~
Method of forming a gap, particularly in the metallurgical field Description The invention relates to a method of forming a gap between two materials deposited on or adhering to one another, which wet one another on contact, particularly in the metallurgical field.
In metallurgical technology there is frequently the problem that metal melt freezes locally on components of refractory, ceramic material or forms alumina-rich deposits on the component, whereby the function of such component~ is impaired. Such componente are, for instance, gas flushing bricks, ~liding gate valve components, ~leeves or immer~ion nozzles.
Such problems occur when casting thin strips close to their final dimensions, for instance in the belt-roll or twin-roll method. The steel melt can freeze on the necessary enclosure bodies or form alumina-rich AL~03 deposits. This considerably impairs the quality of the strip ~teel.
, -~_~ 25 Such methods are described in the periodical Stahl undEisen (Steel and Iron) 111 (1991) No. 6, p.37 to 43.
However, solutions to the said problem are not given.
In DE 41 41 50~ Al it is propo~ed to construct enclosure bodies disposed laterally of the steel melt as metal plates which are permeable to a magnetic field from an inductor. The magnetic field induces currents in the metal melt which result in additional warming of the ~. . : : , , -:
~; . - : - . . .
,,;~, , , ~ , . :
~ :' . ' , r,~'': . :-~11 1)~2~
metal melt. This is supposed to prevent the metal melt freezing on the enclosure plates. The currents induced in the melt can, however, lead to destruction of the structure in the edge region of the thin strip which is associated with a reduction in quality.
In the prior patent application P 41 43 049 a device is described in which porous, ceramic inserts are arranged on the enclosure bodies disposed laterally of the melt.
These are acted on by a liquid, which forms a film, which is supposed to prevent freezing of the melt onto the enclosure bodies. For the same purpose, it is proposed in the prior patent application P ~2 3a 036.7 that enclosure plates be provided of an inductively heatable, refractory, ceramic material which couples into the electromagnetic field of the inductor.
It is the object of the invention to propose a method in which the adhering together of materials, particularly a metal melt and a solid body, is avoided in order to render relative movement of the materials possible.
The said object is ~olved by the features of Claim 1.
The vibrations imposed on the material or materials ~J 25 prevent the materials clogging on one another. The vibrations are preferably ultrasonic vibration Embodiments of the invention will be apparent from the dependent claims and the description of exemplary embodiments, exemplary embodiments being shown from the metallurgical field. The invention is however not limited hereto but may be used in other fields.
In the drawings:
~ .
21~iO625 igure 1 is a schematic view of an immersion nozzle on a metallurgical vessel, igure 2 shows an apparatus for the twin-roll method, Figure 3 shows an apparatus for the belt-roll method, and Figure 4 is a schematlc view of a further apparatus for casting close to the final dimeni~iion~.
~.~ , , An immersion nozzle 1 of refractory, ceramic material i8 attached to the base of a metallurgical ves~el 2. A
passage 3 in the immersion nozzle 1 serves to conduct citeel melt. Attached to the immersion nozzle 1 is an ultrasonic generator 4. This imparts mechanical vibrations with a frequency greater than 20 kHz to the immersion nozzle 1 as a solid body. The vibrations propagate within the immersion nozzle 1 to the wall 5 of the passage 3. A gap thus forms between the melt flowing through the passage 3 and the wall 5 because the high frequency vibrations prevent the melt from remaining in permanent contact with the wall 5. This gap prevents solid materials, particularly Al203particles, solidifying on the wall 5. Growing caked-on portion~, which could result in the free cross-sectional area of the passage 3 decreasing, are thus prevented. ~s a result of the gap the discharge characteristics of the melt are also improved overall since the gap reduces the friction between the wall 5 and the melt. The breadth of the gap is of the order of fractions of a mm, for instance of the order of a few ~m.
An ultrasonic generator 4 ii shown externally on the ,'f, ' .-. .
,"; ~ ~ -~ ,~ , . .. .
Method of forming a gap, particularly in the metallurgical field Description The invention relates to a method of forming a gap between two materials deposited on or adhering to one another, which wet one another on contact, particularly in the metallurgical field.
In metallurgical technology there is frequently the problem that metal melt freezes locally on components of refractory, ceramic material or forms alumina-rich deposits on the component, whereby the function of such component~ is impaired. Such componente are, for instance, gas flushing bricks, ~liding gate valve components, ~leeves or immer~ion nozzles.
Such problems occur when casting thin strips close to their final dimensions, for instance in the belt-roll or twin-roll method. The steel melt can freeze on the necessary enclosure bodies or form alumina-rich AL~03 deposits. This considerably impairs the quality of the strip ~teel.
, -~_~ 25 Such methods are described in the periodical Stahl undEisen (Steel and Iron) 111 (1991) No. 6, p.37 to 43.
However, solutions to the said problem are not given.
In DE 41 41 50~ Al it is propo~ed to construct enclosure bodies disposed laterally of the steel melt as metal plates which are permeable to a magnetic field from an inductor. The magnetic field induces currents in the metal melt which result in additional warming of the ~. . : : , , -:
~; . - : - . . .
,,;~, , , ~ , . :
~ :' . ' , r,~'': . :-~11 1)~2~
metal melt. This is supposed to prevent the metal melt freezing on the enclosure plates. The currents induced in the melt can, however, lead to destruction of the structure in the edge region of the thin strip which is associated with a reduction in quality.
In the prior patent application P 41 43 049 a device is described in which porous, ceramic inserts are arranged on the enclosure bodies disposed laterally of the melt.
These are acted on by a liquid, which forms a film, which is supposed to prevent freezing of the melt onto the enclosure bodies. For the same purpose, it is proposed in the prior patent application P ~2 3a 036.7 that enclosure plates be provided of an inductively heatable, refractory, ceramic material which couples into the electromagnetic field of the inductor.
It is the object of the invention to propose a method in which the adhering together of materials, particularly a metal melt and a solid body, is avoided in order to render relative movement of the materials possible.
The said object is ~olved by the features of Claim 1.
The vibrations imposed on the material or materials ~J 25 prevent the materials clogging on one another. The vibrations are preferably ultrasonic vibration Embodiments of the invention will be apparent from the dependent claims and the description of exemplary embodiments, exemplary embodiments being shown from the metallurgical field. The invention is however not limited hereto but may be used in other fields.
In the drawings:
~ .
21~iO625 igure 1 is a schematic view of an immersion nozzle on a metallurgical vessel, igure 2 shows an apparatus for the twin-roll method, Figure 3 shows an apparatus for the belt-roll method, and Figure 4 is a schematlc view of a further apparatus for casting close to the final dimeni~iion~.
~.~ , , An immersion nozzle 1 of refractory, ceramic material i8 attached to the base of a metallurgical ves~el 2. A
passage 3 in the immersion nozzle 1 serves to conduct citeel melt. Attached to the immersion nozzle 1 is an ultrasonic generator 4. This imparts mechanical vibrations with a frequency greater than 20 kHz to the immersion nozzle 1 as a solid body. The vibrations propagate within the immersion nozzle 1 to the wall 5 of the passage 3. A gap thus forms between the melt flowing through the passage 3 and the wall 5 because the high frequency vibrations prevent the melt from remaining in permanent contact with the wall 5. This gap prevents solid materials, particularly Al203particles, solidifying on the wall 5. Growing caked-on portion~, which could result in the free cross-sectional area of the passage 3 decreasing, are thus prevented. ~s a result of the gap the discharge characteristics of the melt are also improved overall since the gap reduces the friction between the wall 5 and the melt. The breadth of the gap is of the order of fractions of a mm, for instance of the order of a few ~m.
An ultrasonic generator 4 ii shown externally on the ,'f, ' .-. .
,"; ~ ~ -~ ,~ , . .. .
2~ 10~
immersion nozzle 1 in Figure 1 (left). If necessary, a plurality of such generators 4 can be arranged distributed over the external periphery of the immersion nozzle 1. The generator 4 can alsG annularly surround the external periphery of the immersion nozzle 1. The ultrasonic generator 4 or extensions connected to it can also be built into the wall of the immersion nozzle (see Fig. 1, right-hand side). It then induces the melt as a liquid rnaterial to vibrate. The generator 4 is preferably arranged at the height in the immersion nozzle 1 at which experience shows there is the tendency for ', Al2O3 deposits to form. The ultrasonic vibrations prevent crystallisation nuclei for growing deposits being able to become established on the wall 5.
Figure 2 shows the counter-rotated rol'ers 6, 7 of an apparatus for carrying out the twin-roll method with which casting of a thin steel strip close to the final dimensions may be performed. The steel melt is applied to the rollers 6, 7 and transferred downwardly in the space between the rollers 6, 7. In order to prevent lateral eacape of the steel melt, enclosure plates 8, 9 are disposed as solid bodies adjacent the rollers 6, 7.
~ Ultrasonic generators 4 are secured to the enclosure - ~ 25 plates 8, 9 which comprise steel or refractory ceramic material. These induce the enclosure platea 8, 9 to vibrate. This vibration prevents the melt from freezing on them or deposits forming, as is described above.
In the apparatus illustrated in Figure 3 for the belt-roll method, two drive rollers 10, 11 are provided for a transport belt 12. The melt is supplied onto the transport belt 12 in a region 13 as a thin strip. The steel melt cools on the tran~port belt 12 until it ,,' ., ~' , .
f~
, . -, .
' ~
21~6~
solidifies and is withdrawn from it.
In order to prevent lateral flowing away of the steel ! melt, enclosure strips 14, 15 are provided. Arranged on ¦ 5 the enclosure strips 14, 15 are ultra~onic generators 4 which impose vibrations on the enclosure strips 14, 15.
These result in gaps in the described manner between the enclosure strips 14, 15 as solid bodie~ and the steel melt as a liquid material so that the ~teel melt cannot freeze on the enclosure strips 14, 15 and the crystallisation nuclei contained in the steel melt cannot deposit on the enclosure strips 14, 15 and thus no deposits can grow on them.
In the exemplary embodiment of Figure 4 an apparatus is shown which is similar as regards the casting of a thin strip close to the final dimensions shown in Figure 3.
In the apparatus of Figure 4 a transport belt 12 driven by the drive rollers 10, 11 is omitted. Instead of this a receiving plate 16 of steel or refractory, ceramic material is provided which is arranged on solid supports 17, 18. Arranged at the sides of the receiving plate 16 are the enclosure strips 14, 15. These can be integrally constructed with the receiving plate 16 or secured to the ~J 25 receiving plate 16 as separate components.
Arranged on the underside of the receiving plate 16 is at least one ultrasonic generator 4. Additionally, ultrasonic generators 4 can be provided on the enclosure strips 1~ . These can be omitted when the ultrasonic generator 4 arranged on the receiving plate 16 also imparts the desired ultrasonic vibrations to the enclosure strips 1~
~"~
` 2110~.5 The steel melt is supplied to the receiving plate 16 in the region 13, for instance from a broad slit nozzle.
The receiving plate 16 is inclined to the horizontal H at an angle of inclination W which is so dimensioned that the melt flows away obliquely downwardly on the receiving plate 16 towards the region 13. As a result of the ultrasonic vibrations of the receiving plate 16 and the enclosure strips 14, 15, a gap is produced between the solid bodies and the steel melt which prevents freezing or caking of the steel melt or particles from it on the receiving plate 16 and the enclosure strips 14, 15, that ; is to say renders the desired movement possible of the melt with respect to the receiving plate 16 and the enclosure strips 14, 15.
; In the exemplary embodiment of Figure 4 the withdrawal of the melt is achieved by the oblique position of the receiving plate 16 at the angle W.
The withdrawal of the melt may be improved in a receiving ~ plate 16 arranged at an angle W to the horizontal H or ¦ achieved with the receiving plate 16 arranged in the horizontal H if the ultrasonic vibrations imposed on the receiving plate 16 are so aligned that they impart a ~J 25 guide component in the direction F directed away from the region 13 on the melt.
I
The described arrangement of an ultrasonic generator 4 may also be used on other components, for instance gas flushing bricks or sliding gate valve~ of metallurgical vessels in order to prevent freezing of melt or caking on of alumina-rich impurities.
The effect i.s promoted by the selection of refractory materials which the steel only slightly wets.
..
. . : . , .. :, . :, , ": : , ~ ::
. .
,. . . .
immersion nozzle 1 in Figure 1 (left). If necessary, a plurality of such generators 4 can be arranged distributed over the external periphery of the immersion nozzle 1. The generator 4 can alsG annularly surround the external periphery of the immersion nozzle 1. The ultrasonic generator 4 or extensions connected to it can also be built into the wall of the immersion nozzle (see Fig. 1, right-hand side). It then induces the melt as a liquid rnaterial to vibrate. The generator 4 is preferably arranged at the height in the immersion nozzle 1 at which experience shows there is the tendency for ', Al2O3 deposits to form. The ultrasonic vibrations prevent crystallisation nuclei for growing deposits being able to become established on the wall 5.
Figure 2 shows the counter-rotated rol'ers 6, 7 of an apparatus for carrying out the twin-roll method with which casting of a thin steel strip close to the final dimensions may be performed. The steel melt is applied to the rollers 6, 7 and transferred downwardly in the space between the rollers 6, 7. In order to prevent lateral eacape of the steel melt, enclosure plates 8, 9 are disposed as solid bodies adjacent the rollers 6, 7.
~ Ultrasonic generators 4 are secured to the enclosure - ~ 25 plates 8, 9 which comprise steel or refractory ceramic material. These induce the enclosure platea 8, 9 to vibrate. This vibration prevents the melt from freezing on them or deposits forming, as is described above.
In the apparatus illustrated in Figure 3 for the belt-roll method, two drive rollers 10, 11 are provided for a transport belt 12. The melt is supplied onto the transport belt 12 in a region 13 as a thin strip. The steel melt cools on the tran~port belt 12 until it ,,' ., ~' , .
f~
, . -, .
' ~
21~6~
solidifies and is withdrawn from it.
In order to prevent lateral flowing away of the steel ! melt, enclosure strips 14, 15 are provided. Arranged on ¦ 5 the enclosure strips 14, 15 are ultra~onic generators 4 which impose vibrations on the enclosure strips 14, 15.
These result in gaps in the described manner between the enclosure strips 14, 15 as solid bodie~ and the steel melt as a liquid material so that the ~teel melt cannot freeze on the enclosure strips 14, 15 and the crystallisation nuclei contained in the steel melt cannot deposit on the enclosure strips 14, 15 and thus no deposits can grow on them.
In the exemplary embodiment of Figure 4 an apparatus is shown which is similar as regards the casting of a thin strip close to the final dimensions shown in Figure 3.
In the apparatus of Figure 4 a transport belt 12 driven by the drive rollers 10, 11 is omitted. Instead of this a receiving plate 16 of steel or refractory, ceramic material is provided which is arranged on solid supports 17, 18. Arranged at the sides of the receiving plate 16 are the enclosure strips 14, 15. These can be integrally constructed with the receiving plate 16 or secured to the ~J 25 receiving plate 16 as separate components.
Arranged on the underside of the receiving plate 16 is at least one ultrasonic generator 4. Additionally, ultrasonic generators 4 can be provided on the enclosure strips 1~ . These can be omitted when the ultrasonic generator 4 arranged on the receiving plate 16 also imparts the desired ultrasonic vibrations to the enclosure strips 1~
~"~
` 2110~.5 The steel melt is supplied to the receiving plate 16 in the region 13, for instance from a broad slit nozzle.
The receiving plate 16 is inclined to the horizontal H at an angle of inclination W which is so dimensioned that the melt flows away obliquely downwardly on the receiving plate 16 towards the region 13. As a result of the ultrasonic vibrations of the receiving plate 16 and the enclosure strips 14, 15, a gap is produced between the solid bodies and the steel melt which prevents freezing or caking of the steel melt or particles from it on the receiving plate 16 and the enclosure strips 14, 15, that ; is to say renders the desired movement possible of the melt with respect to the receiving plate 16 and the enclosure strips 14, 15.
; In the exemplary embodiment of Figure 4 the withdrawal of the melt is achieved by the oblique position of the receiving plate 16 at the angle W.
The withdrawal of the melt may be improved in a receiving ~ plate 16 arranged at an angle W to the horizontal H or ¦ achieved with the receiving plate 16 arranged in the horizontal H if the ultrasonic vibrations imposed on the receiving plate 16 are so aligned that they impart a ~J 25 guide component in the direction F directed away from the region 13 on the melt.
I
The described arrangement of an ultrasonic generator 4 may also be used on other components, for instance gas flushing bricks or sliding gate valve~ of metallurgical vessels in order to prevent freezing of melt or caking on of alumina-rich impurities.
The effect i.s promoted by the selection of refractory materials which the steel only slightly wets.
..
. . : . , .. :, . :, , ": : , ~ ::
. .
,. . . .
Claims (12)
1. Method of forming a gap between at least two materials deposited on or adhering to one another, which wet one another on contact, particularly in the metallurgical field, in which at least one of the materials is excited to vibrate mechanically.
2. Method as claimed in Claim 1, characterised in that the excitation source is an electro-acoustic sound transducer (ultrasonic generator) which emits ultrasonic waves.
3. Method as claimed in Claims 1 and 2, characterised in that the vibrations are ultrasonic vibrations.
4. Method as claimed in Claims 1 to 3, characterised in that one material is a solid body whose wall directed towards the other material is excited to vibrate.
5. Method as claimed in Claim 4, characterised in that the solid body comprises a refractory, ceramic material or steel.
6. Method as claimed in Claim 4 or 5, characterised in that the other material is a metal melt, particularly steel melt.
7. Method as claimed in Claims 1 to 3, characterised in that the one material is a solid body and the other material is a metal melt, particularly steel melt, flowing along it which, and/or solid particles contained in it, is/are excited to vibrate.
8. Method as claimed in one of the preceding claims, characterised in that the solid body is a component of a metallurgiral vessel, for instance an immersion nuzzle, gas flushing brick or sliding gate valve plate.
9. Method as claimed in one of the preceding Claims 1 to 7, characterised in that the solid body is a side enclosure of an outflowing metal melt, particularly steel melt.
10. Method as claimed in one of the preceding claims, characterised in that the solid body constitutes a fixed receiving plate over which the metal melt, particularly steel melt, is caused to flow.
11. Method as claimed in claim 10, characterised in that the metal melt, particularly steel melt, is caused to flow by an oblique positioning of the receiving plate.
12. Method as claimed in Claim 10 or 11, characterised in that the metal melt is caused to flow by mechanical vibrations of the receiving plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4240849.0 | 1992-12-04 | ||
| DE4240849A DE4240849A1 (en) | 1992-12-04 | 1992-12-04 | Process for forming a separation gap, especially in metallurgy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2110625A1 true CA2110625A1 (en) | 1994-06-05 |
Family
ID=6474410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002110625A Abandoned CA2110625A1 (en) | 1992-12-04 | 1993-12-03 | Method of forming a gap, particularly in the metallurgical field |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0600248A1 (en) |
| JP (1) | JPH06238398A (en) |
| CN (1) | CN1057032C (en) |
| CA (1) | CA2110625A1 (en) |
| DE (1) | DE4240849A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4410511A1 (en) * | 1994-03-28 | 1995-10-05 | Didier Werke Ag | Method and device for pouring melts close to final dimensions |
| CZ297654B6 (en) * | 1996-06-07 | 2007-02-21 | Mannesmann Ag | Apparatus for continuously casting metal strip |
| DE19823361A1 (en) * | 1998-05-15 | 1999-11-25 | Mannesmann Ag | Continuous billet extraction |
| CH696756A5 (en) * | 2003-10-08 | 2007-11-30 | Main Man Inspiration Ag | A method of generating oscillating movements of side seals of a strip casting machine for producing a metal strip and a device for performing the method. |
| CN101905295A (en) * | 2010-08-05 | 2010-12-08 | 安徽工业大学 | Continuous casting crystallizer device using ultrasonic vibration |
| CN109715316B (en) | 2016-08-10 | 2021-09-21 | 纽科尔公司 | Thin strip casting method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1031135A (en) * | 1951-01-18 | 1953-06-19 | Advanced Metal Casting Process | |
| JPS58151949A (en) * | 1982-03-05 | 1983-09-09 | Sumitomo Metal Ind Ltd | Method for preventing clogging of immersion nozzle |
| JPS58224045A (en) * | 1982-06-22 | 1983-12-26 | Nippon Steel Corp | Continuous casting method of molten steel at low temperature |
| JPS60130455A (en) * | 1983-12-20 | 1985-07-11 | Kawasaki Steel Corp | Production of quickly cooled thin sheet |
| JPH0776895B2 (en) * | 1984-11-06 | 1995-08-16 | セイコーエプソン株式会社 | Small portable devices |
| JPS62230458A (en) * | 1986-04-01 | 1987-10-09 | Nippon Steel Corp | Single-side solidification type continuous casting apparatus |
| JPS63183747A (en) * | 1987-01-24 | 1988-07-29 | Sumitomo Metal Ind Ltd | Continuous casting device for thin strip from molten metal |
-
1992
- 1992-12-04 DE DE4240849A patent/DE4240849A1/en not_active Withdrawn
-
1993
- 1993-11-03 EP EP93117793A patent/EP0600248A1/en not_active Withdrawn
- 1993-12-01 JP JP5341076A patent/JPH06238398A/en active Pending
- 1993-12-03 CN CN93120058A patent/CN1057032C/en not_active Expired - Fee Related
- 1993-12-03 CA CA002110625A patent/CA2110625A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CN1057032C (en) | 2000-10-04 |
| EP0600248A1 (en) | 1994-06-08 |
| JPH06238398A (en) | 1994-08-30 |
| DE4240849A1 (en) | 1994-06-09 |
| CN1089529A (en) | 1994-07-20 |
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