CA2055741A1 - Continuous production of metal strip - Google Patents
Continuous production of metal stripInfo
- Publication number
- CA2055741A1 CA2055741A1 CA 2055741 CA2055741A CA2055741A1 CA 2055741 A1 CA2055741 A1 CA 2055741A1 CA 2055741 CA2055741 CA 2055741 CA 2055741 A CA2055741 A CA 2055741A CA 2055741 A1 CA2055741 A1 CA 2055741A1
- Authority
- CA
- Canada
- Prior art keywords
- duct
- molten metal
- distributer
- conductive material
- retarding
- 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
- 239000002184 metal Substances 0.000 title claims abstract description 62
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 62
- 238000010924 continuous production Methods 0.000 title claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000005266 casting Methods 0.000 claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 239000004020 conductor Substances 0.000 claims description 10
- 230000000979 retarding effect Effects 0.000 claims description 8
- 230000006698 induction Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000009749 continuous casting Methods 0.000 claims description 2
- 239000012811 non-conductive material Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 229910001369 Brass Inorganic materials 0.000 description 3
- 239000010951 brass Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- B22D11/0637—Accessories therefor
- B22D11/064—Accessories therefor for supplying molten metal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
ABSTRACT
A method of and an apparatus for the continuous production of metal strips of substantially final dimensions are disclosed. The molten metal is cast and solidified on an endless, advancing cooling strip. In order to obtain a thoroughly laminar discharge of the molten metal onto the cooling strip, the molten metal flows from a distributer through a duct, of substantially rectangular cross-section with a small cross-sectional height in relation to its cross-sectional width, connected to the distributer. The duct is downwardly inclined in the direction of flow of the molten metal and opens into a casting opening above the cooling strip. The speed of the outflowing molten metal is regulated by employing an electromotive force opposed to the gravitational force to retard the molten metal flowing in the duct.
A method of and an apparatus for the continuous production of metal strips of substantially final dimensions are disclosed. The molten metal is cast and solidified on an endless, advancing cooling strip. In order to obtain a thoroughly laminar discharge of the molten metal onto the cooling strip, the molten metal flows from a distributer through a duct, of substantially rectangular cross-section with a small cross-sectional height in relation to its cross-sectional width, connected to the distributer. The duct is downwardly inclined in the direction of flow of the molten metal and opens into a casting opening above the cooling strip. The speed of the outflowing molten metal is regulated by employing an electromotive force opposed to the gravitational force to retard the molten metal flowing in the duct.
Description
20~7~
CONTINUOUS PRODUCTION OF METAL STRIP
The present invention relates to a method of and an apparatus for the continuous production of a metal strip of substantially final dimensions, in which molten metal is cast and solldified on an endless, advancing cooling strip.
In a method of the above-mentioned type, the main problem is to supply the molten metal as uniformly as possible to the advancing cooling strip and indeed the supply should be as free from turbulence as possible and the molten metal should reach substantially the same speed as the cooling strip.
In one prior method of the above-mentioned type (substantially as disclosed in German Patent Specification 3,810,302), the outflow of the molten metal is regulated by the gas pressure in the distributer, the distributer being connected to a partial-vacuum chamber. Relatively thick wall thicknesses are required for the distributer. The wall thickness of the distributer bottom essentially determines the metallostatic pressure which builds up at the height of the casting opening of the duct extending through the distributer wall. This pressure is, when the outflow is unrestricted, greater than necessary for the supply of the molten metal. With the assistance of the partial vacuum, the effective metallostatic height can, it is true, be reduced below the distributer wall strength, but for copper alloys containing zinc, due to the high zinc vapour pressure, partial pressure in the distributer must be avoided. A method utilizing partial pressure is therefore excluded from the beginning.
It is an object of the present invention to enable the outflow speed of the molten metal to be regulated, while avoiding the use of a partial pressure, so that the metal flow is as laminar as possible and the speeds of the molten metal and of the cooling strip substantially coincide.
CONTINUOUS PRODUCTION OF METAL STRIP
The present invention relates to a method of and an apparatus for the continuous production of a metal strip of substantially final dimensions, in which molten metal is cast and solldified on an endless, advancing cooling strip.
In a method of the above-mentioned type, the main problem is to supply the molten metal as uniformly as possible to the advancing cooling strip and indeed the supply should be as free from turbulence as possible and the molten metal should reach substantially the same speed as the cooling strip.
In one prior method of the above-mentioned type (substantially as disclosed in German Patent Specification 3,810,302), the outflow of the molten metal is regulated by the gas pressure in the distributer, the distributer being connected to a partial-vacuum chamber. Relatively thick wall thicknesses are required for the distributer. The wall thickness of the distributer bottom essentially determines the metallostatic pressure which builds up at the height of the casting opening of the duct extending through the distributer wall. This pressure is, when the outflow is unrestricted, greater than necessary for the supply of the molten metal. With the assistance of the partial vacuum, the effective metallostatic height can, it is true, be reduced below the distributer wall strength, but for copper alloys containing zinc, due to the high zinc vapour pressure, partial pressure in the distributer must be avoided. A method utilizing partial pressure is therefore excluded from the beginning.
It is an object of the present invention to enable the outflow speed of the molten metal to be regulated, while avoiding the use of a partial pressure, so that the metal flow is as laminar as possible and the speeds of the molten metal and of the cooling strip substantially coincide.
- 2 - ~0~ 5 7~ ~
According to the present invention, there is provided a method for the continuous production of metal strips of substantially final dimensions, comprising the steps of casting molten metal on an endless, advancing cooling strip and solidifying the metal on the cooling strip, the method including causing the molten metal to flow from a distributer through a duct connected to the distributer, the duct having substantially rectangular cross-section with a small cross-sectional height in relation to its cross-sectional width, the duct being inclined in the direction of flow of the molten metal and opening into a casting opening above the cooling strip, and regulating the speed of the outflowing molten metal by retarding the molten metal flowing in the duct by an electromotive force opposed to the gravitational force.
There is thus provided a method whi_h regulates the speed of delivery of the molten metal in a simple manner without utilizing mechanically moved components.
An inclined duct is in fact already known from the above-mentioned German Patent 3 810,302. However, an association between the inclination of the duct and the regulation of the casting speed is not apparent.
The retardation of the molten metal in a narrow, vertical duct is known, for example, from European Published Specification 0.374.260. The duct itself, however, ends in a mould, opposed wide sides of which are formed by endless strips running from above to below and narrow sides of which are formed by movable side edges. Such a mould is not suitable for applying the melt to a horizontally extending, moving eooling strip. The braking effect on the molten metal in the duet is produeed by two so-ealled "linear induetion motors" lying opposite the wide sides of the mould. At page 20, lines 10 - 15 of European Published Speeifieation 0.374.260, however, it is stated that 2 0 ~
complete retardation of the molten metal cannot be achieved due to the high metallostatic pressure. The inventor named in this prior publication has not realized that the strong throttling necessary for the casting of metal strips, particularly of substantially final dimensions, i.e. of particularly thin metal strips, is not possible because by his vertical arrangement of the electromagnetic throttle, he must accept the following disadvantages: If the electromagnetic throttle is too weak, it can in fact be extended in the direction of the throughflow, i.e.
vertically downwardly in the arrangement according to the European Patent Specification. The possibility of increasing the throttling force is in fact thereby obtained, since more coils can be provided. However, this overlooks the fact that the elongation of the duct in the vertical direction causes an increase in the metallostatic pressure, so that even a multiple increase of the throttling can not make complete retardation possible.
By the inclination of the duct according to the invention, as opposed to the vertical arrangement according to the state of the art, it has become possible, while the metallostatic pressure otherwise remains the same, to increase the length of the throttle in the duct so that a complete retardation is possible.
Advantageously, a range of 10 to 500 is selected for the angle of inclination ~ of the duct.
In order to achieve a complete braking effect, the molten metal is, according to one particular embodiment of the invention, retarded over the entire length of the duct.
For space reasons in particular, it is recommended that the electromagnetic field producing the electromotive force is applied from above the duct.
7 ~ ~
For preheating the duct, the side walls, comprising a conductive material, are heated by the electromotive filed which produces the electromagnetic braking force.
Additional conductive sheet material can be fed into the duct and heated by the effect of the electromotive force.
The present invention further provides apparatus for the continuous casting of metal strip, comprising a distributer for the molten metal, a duct of substantially rectangular cross-section connected to the distributer and having a casting opening, the duct being downwardly inclined in the direction of flow of the molten metal, a cooling strip located below the casting opening and a linear induction motor located above the duct and connected as an electromagnetic brake for retarding the flow of the molten metal down the duct.
The linear induction motor preferably extends over the length of the duct.
For concentrating the electromotive field, a magnetic short circuit beneath the duct may be provided.
For preheating of the duct, side walls of the duct may comprise a conductive material, top and bottom walls comprising a non-conductive material.
An embodiment of `the invention is described in greater detail with reference to the accompanying drawings, in which:
Fig. 1 shows a vertical section through a casting device embodying the invention;
Fig. 2 shows detail A of Fig. 1 in an enlarged scale; and Fig. 3 shows the cross-section of the duct through which the molten metal flows.
2~7~
Fig. 1 shows a casting device for the continuous production of a metal strip 1 of substantiall~ final dimensions, comprising an endless cooling strip 2, which runs around feed rollers 3 and 4, a distributer S for the molten metal 6 and an adjoinlng duct 7 extending downwardl~ in the direction of flow of the molten metal at an angle of inclination ~. A supply container 8 is connected before the distributer 5.
The molten metal 6 flows downwardly from the duct 7 onto the cooling strip 2 and is thus cast on the cooling strip 2, which is travelling in the direction of the arrow, and solidifies on the cooling strip 2.
The duct 7 has a rectangular cross-section, with side walls 9, 10 and top and bottom walls 11, 12. A casting opening 7', into which the duct 7 opens, thus comprises a narrow gap, the length of which is as wide as or narrower than the width of the metal strip 1 which is to be cast (Cf. Fig.
According to the present invention, there is provided a method for the continuous production of metal strips of substantially final dimensions, comprising the steps of casting molten metal on an endless, advancing cooling strip and solidifying the metal on the cooling strip, the method including causing the molten metal to flow from a distributer through a duct connected to the distributer, the duct having substantially rectangular cross-section with a small cross-sectional height in relation to its cross-sectional width, the duct being inclined in the direction of flow of the molten metal and opening into a casting opening above the cooling strip, and regulating the speed of the outflowing molten metal by retarding the molten metal flowing in the duct by an electromotive force opposed to the gravitational force.
There is thus provided a method whi_h regulates the speed of delivery of the molten metal in a simple manner without utilizing mechanically moved components.
An inclined duct is in fact already known from the above-mentioned German Patent 3 810,302. However, an association between the inclination of the duct and the regulation of the casting speed is not apparent.
The retardation of the molten metal in a narrow, vertical duct is known, for example, from European Published Specification 0.374.260. The duct itself, however, ends in a mould, opposed wide sides of which are formed by endless strips running from above to below and narrow sides of which are formed by movable side edges. Such a mould is not suitable for applying the melt to a horizontally extending, moving eooling strip. The braking effect on the molten metal in the duet is produeed by two so-ealled "linear induetion motors" lying opposite the wide sides of the mould. At page 20, lines 10 - 15 of European Published Speeifieation 0.374.260, however, it is stated that 2 0 ~
complete retardation of the molten metal cannot be achieved due to the high metallostatic pressure. The inventor named in this prior publication has not realized that the strong throttling necessary for the casting of metal strips, particularly of substantially final dimensions, i.e. of particularly thin metal strips, is not possible because by his vertical arrangement of the electromagnetic throttle, he must accept the following disadvantages: If the electromagnetic throttle is too weak, it can in fact be extended in the direction of the throughflow, i.e.
vertically downwardly in the arrangement according to the European Patent Specification. The possibility of increasing the throttling force is in fact thereby obtained, since more coils can be provided. However, this overlooks the fact that the elongation of the duct in the vertical direction causes an increase in the metallostatic pressure, so that even a multiple increase of the throttling can not make complete retardation possible.
By the inclination of the duct according to the invention, as opposed to the vertical arrangement according to the state of the art, it has become possible, while the metallostatic pressure otherwise remains the same, to increase the length of the throttle in the duct so that a complete retardation is possible.
Advantageously, a range of 10 to 500 is selected for the angle of inclination ~ of the duct.
In order to achieve a complete braking effect, the molten metal is, according to one particular embodiment of the invention, retarded over the entire length of the duct.
For space reasons in particular, it is recommended that the electromagnetic field producing the electromotive force is applied from above the duct.
7 ~ ~
For preheating the duct, the side walls, comprising a conductive material, are heated by the electromotive filed which produces the electromagnetic braking force.
Additional conductive sheet material can be fed into the duct and heated by the effect of the electromotive force.
The present invention further provides apparatus for the continuous casting of metal strip, comprising a distributer for the molten metal, a duct of substantially rectangular cross-section connected to the distributer and having a casting opening, the duct being downwardly inclined in the direction of flow of the molten metal, a cooling strip located below the casting opening and a linear induction motor located above the duct and connected as an electromagnetic brake for retarding the flow of the molten metal down the duct.
The linear induction motor preferably extends over the length of the duct.
For concentrating the electromotive field, a magnetic short circuit beneath the duct may be provided.
For preheating of the duct, side walls of the duct may comprise a conductive material, top and bottom walls comprising a non-conductive material.
An embodiment of `the invention is described in greater detail with reference to the accompanying drawings, in which:
Fig. 1 shows a vertical section through a casting device embodying the invention;
Fig. 2 shows detail A of Fig. 1 in an enlarged scale; and Fig. 3 shows the cross-section of the duct through which the molten metal flows.
2~7~
Fig. 1 shows a casting device for the continuous production of a metal strip 1 of substantiall~ final dimensions, comprising an endless cooling strip 2, which runs around feed rollers 3 and 4, a distributer S for the molten metal 6 and an adjoinlng duct 7 extending downwardl~ in the direction of flow of the molten metal at an angle of inclination ~. A supply container 8 is connected before the distributer 5.
The molten metal 6 flows downwardly from the duct 7 onto the cooling strip 2 and is thus cast on the cooling strip 2, which is travelling in the direction of the arrow, and solidifies on the cooling strip 2.
The duct 7 has a rectangular cross-section, with side walls 9, 10 and top and bottom walls 11, 12. A casting opening 7', into which the duct 7 opens, thus comprises a narrow gap, the length of which is as wide as or narrower than the width of the metal strip 1 which is to be cast (Cf. Fig.
3).
Above the duct 7, over the length thereof, there is arranged a diagrammatically illustrated linear induction motor 13, which is connected as an electromagnetic brake, so that the molten metal 6 flowing in the duct 7 is retarded by an electromagnetic force counteracting the gravitational force. The flow of the molten metal 6 in the duct 7 can be regulated so that the speeds of the molten metal 6 and of the cooling strip 2 substantially coincide.
From Fig. 2, it can be seen that a magnetic short circuit 14 is arranged below the duct 7 for concentrating the electromagnetic field. A cooling passage 15 is also shown.
Between each of the side walls 11, 12 of the duct 7, and the induction motor 13 and the magnetic short circuit 14, respectively, there is provided an insulation 16.
2 ~
For preheating the duct 7, the side walls 9, 10 comprise a conductive material (for example graphite). The top and bottom walls 11, 12 of the duct 7 advantageously comprise a non~conductive material (for example silicon carbide SiC). For preheating, additional conductive sheet material 17 (for example graphite) can be supplied into the duct 7, and is heated under the effect of the electromotive force.
Example The above-described casting device is suitable for example for the continuous production of brass strip (CuZnO3) of dimensions 5 mm x 400 mm.
For that purpose the molten brass 6, heated to about 1050C
is firstly supplied by the supply container 8 to the distributer 5 and then flows from the distributer 5 through the rectangular duct 7, which has an angle of inclination ~ = 45, and the cross-sectional dimensions 5 mm x 380 mm, to the feed strip 2. The strip 2 is endless and is guided over rollers 3, 4 which have a diameter of 1.2 m. A steel band 2 with a thickness of 1 mm, a length between the crowns of the rollers 3, 4 of 3600 mm and a width of 850 mm is employed. The width of the casting strip 1 is determined by lateral edges (not shown) advancing therewith.-The molten metal 6 is indirectly cooled by water throughthe underside of the feed strip 2.
The speed of delivery is 20 m/min. By the utilization of the linear motor 13 arranged above the duct 7, a thoroughly laminar discharge of the molten metal 6 onto the strip 2 is obtained. The speed of the molten metal 6 is substantially the same as that of the feed strip 2.
As product, brass strips 1 with a satisfactory surface quality and a with low-segregation and close grained 2 0 ~ ~ 7 L/~ 1~
structure are obtained.
Above the duct 7, over the length thereof, there is arranged a diagrammatically illustrated linear induction motor 13, which is connected as an electromagnetic brake, so that the molten metal 6 flowing in the duct 7 is retarded by an electromagnetic force counteracting the gravitational force. The flow of the molten metal 6 in the duct 7 can be regulated so that the speeds of the molten metal 6 and of the cooling strip 2 substantially coincide.
From Fig. 2, it can be seen that a magnetic short circuit 14 is arranged below the duct 7 for concentrating the electromagnetic field. A cooling passage 15 is also shown.
Between each of the side walls 11, 12 of the duct 7, and the induction motor 13 and the magnetic short circuit 14, respectively, there is provided an insulation 16.
2 ~
For preheating the duct 7, the side walls 9, 10 comprise a conductive material (for example graphite). The top and bottom walls 11, 12 of the duct 7 advantageously comprise a non~conductive material (for example silicon carbide SiC). For preheating, additional conductive sheet material 17 (for example graphite) can be supplied into the duct 7, and is heated under the effect of the electromotive force.
Example The above-described casting device is suitable for example for the continuous production of brass strip (CuZnO3) of dimensions 5 mm x 400 mm.
For that purpose the molten brass 6, heated to about 1050C
is firstly supplied by the supply container 8 to the distributer 5 and then flows from the distributer 5 through the rectangular duct 7, which has an angle of inclination ~ = 45, and the cross-sectional dimensions 5 mm x 380 mm, to the feed strip 2. The strip 2 is endless and is guided over rollers 3, 4 which have a diameter of 1.2 m. A steel band 2 with a thickness of 1 mm, a length between the crowns of the rollers 3, 4 of 3600 mm and a width of 850 mm is employed. The width of the casting strip 1 is determined by lateral edges (not shown) advancing therewith.-The molten metal 6 is indirectly cooled by water throughthe underside of the feed strip 2.
The speed of delivery is 20 m/min. By the utilization of the linear motor 13 arranged above the duct 7, a thoroughly laminar discharge of the molten metal 6 onto the strip 2 is obtained. The speed of the molten metal 6 is substantially the same as that of the feed strip 2.
As product, brass strips 1 with a satisfactory surface quality and a with low-segregation and close grained 2 0 ~ ~ 7 L/~ 1~
structure are obtained.
Claims (16)
1. A method for the continuous production of metal strips of substantially final dimensions, comprising the steps of casting molten metal on an endless, advancing cooling strip and solidifying the metal on the cooling strip, the method including causing the molten metal to flow from a distributer through a duct connected to the distributer, the duct having substantially rectangular cross-section with a small cross-sectional height in relation to its cross-sectional width;
the duct being inclined in the direction of flow of the molten metal and opening into a casting opening above the cooling strip;
regulating the speed of the outflowing molten metal by retarding the molten metal flowing in the duct by an electromotive force opposed to the gravitational force.
the duct being inclined in the direction of flow of the molten metal and opening into a casting opening above the cooling strip;
regulating the speed of the outflowing molten metal by retarding the molten metal flowing in the duct by an electromotive force opposed to the gravitational force.
2. A method according to claim 1, which includes selecting the angle of inclination of the duct within a range of 10° and 50°.
3. A method according to claim 1, in which the step of retarding the molten metal comprises retarding the molten metal over the entire length of the duct.
4. A method according to claim 2, in which the step of retarding the molten metal comprises retarding the molten metal over the entire length of the duct.
5. A method as claimed in claims 1, 2, 3 or 4 which includes applying an electromotive field producing the electromotive force from above the duct.
6. A method as claimed in claim 1, in which the duct is preheated by applying electromagnetic force to sidewalls of the duct made of electrically conductive material.
7. A method as claimed in claim 2, in which the duct is preheated by applying electromagnetic force to sidewalls of the duct made of electrically conductive material.
8. A method as claimed in claim 3, in which the duct is preheated by applying electromagnetic force to sidewalls of the duct made of electrically conductive material.
9. A method as claimed in claim 4, in which the duct is preheated by applying electromagnetic force to sidewalls of the duct made of electrically conductive material.
10. A method as claimed in claim 5, in which the duct is preheated by applying electromagnetic force to sidewalls of the duct made of electrically conductive material.
11. A method according to claim 6, 7, 8, 9 or 10 which includes supplying conductive sheet material to the duct and heating the sheet material by the effect of the electromagnetic force.
12. Apparatus for the continuous casting of metal strip, comprising;
a distributer for the molten metal;
a duct of substantially rectangular cross-section connected to said distributer and having a casting opening;
said duct being downwardly inclined in the direction of flow of the molten metal;
a cooling strip located below said casting opening;
and a linear induction motor located above said duct and connected as an electromagnetic brake for retarding the flow of the molten metal down said duct.
a distributer for the molten metal;
a duct of substantially rectangular cross-section connected to said distributer and having a casting opening;
said duct being downwardly inclined in the direction of flow of the molten metal;
a cooling strip located below said casting opening;
and a linear induction motor located above said duct and connected as an electromagnetic brake for retarding the flow of the molten metal down said duct.
13. Apparatus according to claim 12, wherein said linear induction motor extends the entire length of said duct.
14. A device according to claim 12, wherein a magnetic short circuit is provided beneath said duct.
15. A device according to claim 13, wherein a magnetic short circuit is provided beneath said duct.
16. A device according to claim 12, 13, 14 or 15, wherein said duct has side walls comprising conductive material, for preheating said duct, and upper and lower walls which comprise non-conductive material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4039959.1-24 | 1990-12-14 | ||
| DE19904039959 DE4039959C1 (en) | 1990-12-14 | 1990-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2055741A1 true CA2055741A1 (en) | 1992-06-15 |
Family
ID=6420328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2055741 Abandoned CA2055741A1 (en) | 1990-12-14 | 1991-11-18 | Continuous production of metal strip |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0490034A1 (en) |
| JP (1) | JPH0523799A (en) |
| CA (1) | CA2055741A1 (en) |
| DE (1) | DE4039959C1 (en) |
| FI (1) | FI915859A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4344953C2 (en) * | 1993-12-27 | 1996-10-02 | Mannesmann Ag | Method and device for casting a metal strip close to its final dimensions |
| DE19711116C2 (en) * | 1997-03-05 | 1999-05-12 | Mannesmann Ag | Method and device for casting thin strands |
| DE19746728C1 (en) * | 1997-10-13 | 1998-10-29 | Mannesmann Ag | Initiation of a casting process to produce an accurately dimensioned metal strip |
| KR100813200B1 (en) * | 2007-01-15 | 2008-03-13 | (주)태진기술 | Regulator circuit for generating of stability voltage |
| KR100836529B1 (en) * | 2007-01-15 | 2008-06-10 | (주)태진기술 | Regulator circuit for generating stability voltage |
| DE102010033018A1 (en) * | 2010-07-31 | 2012-02-02 | Sms Siemag Aktiengesellschaft | Melt feeding system for strip casting |
| CN106216642A (en) * | 2016-09-18 | 2016-12-14 | 常州机电职业技术学院 | Progressive-pitch traveling wave magnetic field casting equipment and casting method |
| CN111545716A (en) * | 2020-05-06 | 2020-08-18 | 浙江大学 | Tundish device for rapid-hardening casting belt and casting method of rapid-hardening casting belt |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2540217C3 (en) * | 1975-09-10 | 1979-12-06 | Aeg-Elotherm Gmbh, 5630 Remscheid | Process for putting electromagnetic conveying troughs into operation for the transport of liquid metals and conveying trough suitable for carrying out the process |
| CH667226A5 (en) * | 1985-05-10 | 1988-09-30 | Erik Allan Olsson | METHOD FOR CONTINUOUSLY POURING METAL PRODUCTS. |
| JPS62114747A (en) * | 1985-11-15 | 1987-05-26 | O C C:Kk | Continuous casting method for metallic bar |
| DE3707897A1 (en) * | 1987-03-12 | 1988-09-22 | Mannesmann Ag | METHOD AND CASTING DEVICE FOR CASTING METAL STRIPS, ESPECIALLY STEEL |
| DE3802203A1 (en) * | 1988-01-26 | 1989-08-03 | Voest Alpine Ag | Continuous-casting installation |
| DE3810302A1 (en) * | 1988-03-24 | 1989-10-12 | Mannesmann Ag | CASTING DEVICE FOR THE CONTINUOUS PRODUCTION OF METAL STRIP |
| WO1989011362A1 (en) * | 1988-05-16 | 1989-11-30 | Nippon Steel Corporation | Injector for high speed thin continuous casting machine and pouring control method |
| US4974661A (en) * | 1988-06-17 | 1990-12-04 | Arch Development Corp. | Sidewall containment of liquid metal with vertical alternating magnetic fields |
-
1990
- 1990-12-14 DE DE19904039959 patent/DE4039959C1/de not_active Revoked
-
1991
- 1991-09-26 EP EP91116399A patent/EP0490034A1/en not_active Withdrawn
- 1991-11-18 CA CA 2055741 patent/CA2055741A1/en not_active Abandoned
- 1991-12-12 FI FI915859A patent/FI915859A/en not_active Application Discontinuation
- 1991-12-16 JP JP33215191A patent/JPH0523799A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE4039959C1 (en) | 1992-01-23 |
| FI915859A (en) | 1992-06-15 |
| FI915859A0 (en) | 1991-12-12 |
| EP0490034A1 (en) | 1992-06-17 |
| JPH0523799A (en) | 1993-02-02 |
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