CA1137273A - Horizontal continuous casting process and apparatus for continuously producing bolts, rolled plates, and bands - Google Patents
Horizontal continuous casting process and apparatus for continuously producing bolts, rolled plates, and bandsInfo
- Publication number
- CA1137273A CA1137273A CA000329319A CA329319A CA1137273A CA 1137273 A CA1137273 A CA 1137273A CA 000329319 A CA000329319 A CA 000329319A CA 329319 A CA329319 A CA 329319A CA 1137273 A CA1137273 A CA 1137273A
- Authority
- CA
- Canada
- Prior art keywords
- channels
- mold
- vessel
- induction heating
- core
- 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.)
- Expired
Links
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
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/116—Refining the metal
- B22D11/118—Refining the metal by circulating the metal under, over or around weirs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Induction Heating (AREA)
- Continuous Casting (AREA)
- Furnace Details (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
Horizontal continuous casting process and apparatus for continuously producing bolts (billets), rolled plates (cakes), and bands (strips) with a vessel receiving molten metal from a furnace, from which vessel the metal is withdrawn. The amount of molten metal required for drawing is guided in the direction of the mold associated with the system while simultaneous-ly being induction heated.
Horizontal continuous casting process and apparatus for continuously producing bolts (billets), rolled plates (cakes), and bands (strips) with a vessel receiving molten metal from a furnace, from which vessel the metal is withdrawn. The amount of molten metal required for drawing is guided in the direction of the mold associated with the system while simultaneous-ly being induction heated.
Description
~3~
The present invention relates to a horizontal continuous casting process for continuously producing bolts (billets), rolled plates ~cakes), and bands ~strips) with a vessel receiving molten metal from a furnace, from which vessel the metal is withdrawn through one or several molds.
The invention also relates to an apparatus or carrying out the process, nameLy, a vessel having at Least one mold associated therewith.
Continuous casting of metals and metal alloys is known. In the con-tinuous casting process, the metal is brought to the molten state in a fur-nace from which the molten metal is discharged into a water-cooled mold, positioned below the discharge opening of the furnace, and the molten metal is then withdrawn through the mold to continuously provide the desired use-ful shape.A further development of this process is afforded in the horizontal continuous casting using vessels containing molten metal, the metal usually being added in batches. Such vessels are heated and normally have a relative-ly large volume capacity, approximately of the order of 1 to 10 t (metric tons). Most often, the water-cooled graphite mold is flange mounted to the vessel, the heating of which is particularly effected by means of a ring-shaped induction heating means. The arrangement of known horizontal con-tinuous casting units just described thereby ensures that a sufficiently large quantity of hot metal is available for the casting or drawing operation, in order to avoid quality-lowering fluctuations of the casting temperature, or, at least control the casting temperature within narrow limits.
Furthermore, the vessel serves as a buffer means or holding vessel in order to receive the melting furnace charges, these having a weight of the order of several tons. Because of this, the level in the vessel changes con-tinuously and, correspondingly, changes of the metallostatic pressure in the mold occur. Such pressure fluctuations, however~ are particularly detri-mental when the process is to be run at high casting or drawing velocities, - . .
:' ' ' :;
;- .,: .
.
, .
~L37~3 i.e., when the cooling surface of the mold is to be maximally utilized, while avoiding a gap formation between the mold wall and the resultant shape.
In order to compensate for heat losses, it has been at-tempted to arrange the induction rings of the aforementioned ring inductors :in sucll a manner, thcLt the c:irculating metal is brought as close as poss:ible ~o the mold, in order to achieve there a direct, intensive heat transfer of the heat pro-vided by the ring inductor. This aim, however, in practice, is hardly attain-able when using large volume vessels, since in the metal, being a particu-larly efficient heat conductor, the heat flow is in the direction of the highest heat content, i.e., the inductively produced heat in the vessel is directed more radially towards the point at which the metal is received, rather than to the point from which the metal is withdrawn through the mold, where it is foremost required.
In order to avoid these drawbacks, it has been proposed to employ small-er volume, crucible-like vessels having a capacity in the order of several hundred kg, for example, 200 to 300 kg. These vessels, into which the molten metal is introduced from above, comprise at a pertaining side a mold stone having a flange end face for operatively engaging with a mold. No provision for heating of such low volume crucibles was made. In order to avoid a re-duction of the temperature in the direction of the mold into the crucibleprovided ahead of the mold, an insulating separating wall can be provided.
A horizontal casting unit equipped in such a manner, however, has to be oper-ated at a relatively high minimum drawing capacity, in order to avoid metal solidification (Einfrierungen) at the separating wall on the side of the mold.
Operation with a high drawing capacity, however, is not always desired since the drawing velocity, which is related to the drawing capacity, repre-sents a material-specific parameter which materially affects the quality of the drawn shape or product. Thus, for example, when a high drawing velocity .
~, :
13L3~3 produces qualitatively good results using a certain metal, such a drawing velocity can produce a qualitatively poor product using another metal or another alloy, i.e., using certain metals or certain alloys, it may be required to operate at a lower drawing velocity in order to produce qualitatively high grade products.
Thus, for example, it has been observed that when casting or drawing brass, the drawing velocity has to be increased as the copper content increases, due to the increasing conductivity of the metal and correspondingly increasing recooling. This relation, however, is contrary to the technical conditions of induction heated melting furnaces, since the smelting capacity decreases as the copper content increases. In practice this would lead to a smelting capacity to be installed which cannot be primarily adapted in accordance with the desired production, but would have to be increased corresponding to the requirements of the horizontal casting unit.
It is an object of the present invention to adapt the heretofore prevailing drawing velocities for pertaining cross sections and metals or alloys to desired drawing velocities and to adapt the apparatus for prior or subsequent operations, for example smelting furnaces, without concern for metal solidification, adjacent the mold.
Furthermore, it is an object of this invention to retain, to the fullest extent, the advantages of a hori~ontal casting unit, having a furnace-independent mold, with respect to maximal drawing capacity, utilization or manipulation, and drawing quality.
According to the present in~ention, there is provided an apparatus for the continuous casting of metals comprising a supply ~3 ~3~3 chamber, an extension connected to the supply chamber via channels and changlng lnto a mould connectlon, as well as a core llmiting the extension to the supply chamber, said core being penetrated by - channels in the longitudinal direction and in this region by an induction heating means perpendicular to the channels, the induction heating means rapidly heating the accelerated metal volume in the channels in the direction of the mould, wherein the supply chamber and the extension designed as a discharge chamber open towards the top are separated from one another merely by the core and are incorporated with it ln the refractory lining of a common vessel, the induction heating means being also effective in the supply chamber outside the region of the channels.
Preferably the induction heating means comprises a winding core and a winding contained in a through-bore penetrating the core, and the heating capacity of the induction heating means is change-able by means of an adjustable transformer as a function of a temperature measurement in the region of the inlet into the mould.
The vessel preferably has a capacity of approximately 200 kg metal per mould associated therewith and the overall length of the vessel is approximately 1 meter.
Specific embodiment of the present invention will now be descrihea with reference to the accompanying drawings, in which:
Figure 1 is a diagrammatical representation, in vertical section, of a vessel with a mould connection in the region of a channel for passage - 3a -.. ,- . ~.
. :, . :., , -~
72~3 therethrough, and heating thereof, for the metal volume required for the drawing operation; and Figure 2 is a top plan view :in section of the vessel shown in l-:igure 1 at the heigllt o:E the channels.
The process according to the invent:ion is characterized pr:imarily by guid:ing the amount of metal required :Eor the casting in tl-e direction of the mold with concomitant induction heating thereof. One feature of the invention resides therein that continuously only a small metal volume is to be heated, while, simultaneously, care is being taken that the just heated metal volume is passed nearly directly to the mold. It is of primary importance that the heated metal volume is moved quickly and in a manner such that the direction of motion of the heated metal volume is at least nearly coincidental with the longitudinal axis of the drawing cross section of the adjacent mold.
The method, accordingly, is to be carried out in a way such that the direction of the guiding of the heated metal volume is horizontal or at least nearly horizontal.
In accordance with one preferred embodiment, the guiding of the molten metal is assisted, in the direction of the mold, by the induction forces.
In accordance with another preferred embodiment, the method is carried out such that the addition of the molten metal is carried out prior to the induction assisted guiding.
In accordance with another preferred embodiment3 the induction heating is controlled in conformity with the temperature determined in the area of the metal entry into the mold.
The apparatus in accordance with the invention is characterized prim-arily by a vessel associated with at least one adjacent mold. The vessel comprises a filling chamber for receiving liquid metal and, spaced apart therefrom, a discharge chamber in communication with the mold, the filling , ~.3.3rd~273 chamber and the discharge chamber being in communication with each other.
In the region of the channels and in the region of the filling and -the dls-charge chambers, an induction heating means is provided.
In accordatlce with one preferred embodlment of the apparatus in accord-~mce l~ith the inventioll, the filling chamber and the discharge chamber are formed in the refractory lining of the vessel.
In accordance with another preferred embodiment, -the channels for com-municating the filling chamber and the discharge chamber extend at least nearly horizontally.
In accordance with another preferred embodiment of the apparatus accord-ing to the invention, the discharge chamber is directly in co~nunication with a mold stone.
Referring now particularly to the drawings, molten metal is passed from a smelting furnace, not shown, by means of an inlet conduit 1 to a vessel 2, either continuously, or in batches.
In the refractory lining 3 of vessel 2 a filling or receiving or supply chamber 4 and, spaced at a distance therefrom, a discharge chamber 5 are pro-vided, the cross section of the latter decreasing in the direction of the mold connection. The supply chamber 4 and the discharge chamber 5 are con-nected by means of channels 6 (Fig. 2), i.e., the channels extend, approxi-mately at the height of the horizontal longitudinal axis 7 of a mold, not shown, through a core 8 which separates the supply chamber 4 and the dis-charge chamber 5. Viewed in the direction of the mold connection, the supply chamber 4 is provided ahead of discharge chamber 5. A mold stone 9 extends into the reduced section 5' of the discharge chamber 5. The pertaining mold, not shown, can mechanically be placed in contact9 under pressure, against the outwardly directed flange end face 9' (Fig. 2) of the mold stone 9.
~; ~
t -~l~l3Y~?273 The channels 6, the longitudinal axis 6' (Fig. 1) of which extends preferably horizontally, or at least nearly horizontally, are arranged and formed, when viewed in the plan view according to Fig. 2, such that the low metal volume passed and accelerated through the channels reachcs directly the region oE the bore 9" of the mold stone cmd, therefore, directly the region oE the drawing cross section of the mold, not shown.
The vessel 2, furthermore, is equipped with cm induction heating means 10 which is preferably formed and arranged so that it is particularly effect-ive in the region of the channels 6, i.e., the metal volume passed there-through is rapidly heated and simultaneously directed in the direction to-wards the mold stone 9. The induction heating means 10 is generally com-prised of a core 11 and a pertaining winding 12. In the preferred embodi-ment (cf. Fig. 1) the components 11 and 12 extend completely through core 8.
This core 8, accordingly, is provided with a through-bore 13 (Fig. 2).
During the drawing operation, the supply chamber 4 is closed by a plug 14 which is supported in the bore of a tap hole (Abstichloch) 15 associated with vessel 2. Exemplary, the capacity of the chambers 4 and 5, inclusive of section 5' and the channels 6 is 200 kg. which corresponds to an overall length of vessel 2 of about 1 meter.
Since the metal flowing from the supply chamber 4 into the discharge chamber 5 is heated in the region of the channels 6, an overheated metal mass reaches the mold stone 9 or the mold~ so that the danger of producing undesirable solidifications in the vicinity in front of the mold is removed or at least reduced. With appropriate formation and control of the induc-tion heating means 10, it can, furthermore, be ensured that the metal volume in the region of channels 6 has an orientation towards the direction of the mold stone 9 and the mold, not shown.
.
~3~
The induction heating is preferably continuously controllable by means of an induction regulator or adjustable transformer, not shown. The con-tinuous control of tlle heating can be part:icular:ly cffcc-ted on the bas:is of cont:i.nuous temperELture mon:itor:ing, for examp.Le, at the f.lange mounting lo-CELtiOII of the mo.ld, not shown, on the mold stone 9.
~ n impor-tant a.dvEmtage of the :invention resides therein that heating, and, thereby, overheat:i.ng of the metal that is being worked with, can be very rapid].y attained, so that the usual attendant inertia of known vessels is overcome. The heating can, particularly, be carried out within a period of time of from less than 1 minute to maximally 10 minutes. This short period is possible because a relatively small metal vo:lume, namely that respectively present in the chalmels 6, is subjected to a high inductively produced heat energy of between about 10 to 300 kW. This high energy, ex-tending in the direction towards the mold, can be controlled so that i.t ex-ceeds the recooling near the mold at highest conductivity values, so that it is possible to counteract the solidification conditions in the mold in the manner required for production of acceptable products.
In a modification of the embodiment, the apparatus, in accordance with a preferred embodiment, can include a mold stone, not shown, with several openings, reaching into the discharge chamber 5 or its reduced section 5'.
Furthermore, the single-phase inductor shown in the drawings can be re-placed by a multi-phase inductor.
The present invention is, of course, in no way restricted to the speci-fic disclosure of the specification and drawings, but also encompases any modifications within the scope of the appended claims.
The present invention relates to a horizontal continuous casting process for continuously producing bolts (billets), rolled plates ~cakes), and bands ~strips) with a vessel receiving molten metal from a furnace, from which vessel the metal is withdrawn through one or several molds.
The invention also relates to an apparatus or carrying out the process, nameLy, a vessel having at Least one mold associated therewith.
Continuous casting of metals and metal alloys is known. In the con-tinuous casting process, the metal is brought to the molten state in a fur-nace from which the molten metal is discharged into a water-cooled mold, positioned below the discharge opening of the furnace, and the molten metal is then withdrawn through the mold to continuously provide the desired use-ful shape.A further development of this process is afforded in the horizontal continuous casting using vessels containing molten metal, the metal usually being added in batches. Such vessels are heated and normally have a relative-ly large volume capacity, approximately of the order of 1 to 10 t (metric tons). Most often, the water-cooled graphite mold is flange mounted to the vessel, the heating of which is particularly effected by means of a ring-shaped induction heating means. The arrangement of known horizontal con-tinuous casting units just described thereby ensures that a sufficiently large quantity of hot metal is available for the casting or drawing operation, in order to avoid quality-lowering fluctuations of the casting temperature, or, at least control the casting temperature within narrow limits.
Furthermore, the vessel serves as a buffer means or holding vessel in order to receive the melting furnace charges, these having a weight of the order of several tons. Because of this, the level in the vessel changes con-tinuously and, correspondingly, changes of the metallostatic pressure in the mold occur. Such pressure fluctuations, however~ are particularly detri-mental when the process is to be run at high casting or drawing velocities, - . .
:' ' ' :;
;- .,: .
.
, .
~L37~3 i.e., when the cooling surface of the mold is to be maximally utilized, while avoiding a gap formation between the mold wall and the resultant shape.
In order to compensate for heat losses, it has been at-tempted to arrange the induction rings of the aforementioned ring inductors :in sucll a manner, thcLt the c:irculating metal is brought as close as poss:ible ~o the mold, in order to achieve there a direct, intensive heat transfer of the heat pro-vided by the ring inductor. This aim, however, in practice, is hardly attain-able when using large volume vessels, since in the metal, being a particu-larly efficient heat conductor, the heat flow is in the direction of the highest heat content, i.e., the inductively produced heat in the vessel is directed more radially towards the point at which the metal is received, rather than to the point from which the metal is withdrawn through the mold, where it is foremost required.
In order to avoid these drawbacks, it has been proposed to employ small-er volume, crucible-like vessels having a capacity in the order of several hundred kg, for example, 200 to 300 kg. These vessels, into which the molten metal is introduced from above, comprise at a pertaining side a mold stone having a flange end face for operatively engaging with a mold. No provision for heating of such low volume crucibles was made. In order to avoid a re-duction of the temperature in the direction of the mold into the crucibleprovided ahead of the mold, an insulating separating wall can be provided.
A horizontal casting unit equipped in such a manner, however, has to be oper-ated at a relatively high minimum drawing capacity, in order to avoid metal solidification (Einfrierungen) at the separating wall on the side of the mold.
Operation with a high drawing capacity, however, is not always desired since the drawing velocity, which is related to the drawing capacity, repre-sents a material-specific parameter which materially affects the quality of the drawn shape or product. Thus, for example, when a high drawing velocity .
~, :
13L3~3 produces qualitatively good results using a certain metal, such a drawing velocity can produce a qualitatively poor product using another metal or another alloy, i.e., using certain metals or certain alloys, it may be required to operate at a lower drawing velocity in order to produce qualitatively high grade products.
Thus, for example, it has been observed that when casting or drawing brass, the drawing velocity has to be increased as the copper content increases, due to the increasing conductivity of the metal and correspondingly increasing recooling. This relation, however, is contrary to the technical conditions of induction heated melting furnaces, since the smelting capacity decreases as the copper content increases. In practice this would lead to a smelting capacity to be installed which cannot be primarily adapted in accordance with the desired production, but would have to be increased corresponding to the requirements of the horizontal casting unit.
It is an object of the present invention to adapt the heretofore prevailing drawing velocities for pertaining cross sections and metals or alloys to desired drawing velocities and to adapt the apparatus for prior or subsequent operations, for example smelting furnaces, without concern for metal solidification, adjacent the mold.
Furthermore, it is an object of this invention to retain, to the fullest extent, the advantages of a hori~ontal casting unit, having a furnace-independent mold, with respect to maximal drawing capacity, utilization or manipulation, and drawing quality.
According to the present in~ention, there is provided an apparatus for the continuous casting of metals comprising a supply ~3 ~3~3 chamber, an extension connected to the supply chamber via channels and changlng lnto a mould connectlon, as well as a core llmiting the extension to the supply chamber, said core being penetrated by - channels in the longitudinal direction and in this region by an induction heating means perpendicular to the channels, the induction heating means rapidly heating the accelerated metal volume in the channels in the direction of the mould, wherein the supply chamber and the extension designed as a discharge chamber open towards the top are separated from one another merely by the core and are incorporated with it ln the refractory lining of a common vessel, the induction heating means being also effective in the supply chamber outside the region of the channels.
Preferably the induction heating means comprises a winding core and a winding contained in a through-bore penetrating the core, and the heating capacity of the induction heating means is change-able by means of an adjustable transformer as a function of a temperature measurement in the region of the inlet into the mould.
The vessel preferably has a capacity of approximately 200 kg metal per mould associated therewith and the overall length of the vessel is approximately 1 meter.
Specific embodiment of the present invention will now be descrihea with reference to the accompanying drawings, in which:
Figure 1 is a diagrammatical representation, in vertical section, of a vessel with a mould connection in the region of a channel for passage - 3a -.. ,- . ~.
. :, . :., , -~
72~3 therethrough, and heating thereof, for the metal volume required for the drawing operation; and Figure 2 is a top plan view :in section of the vessel shown in l-:igure 1 at the heigllt o:E the channels.
The process according to the invent:ion is characterized pr:imarily by guid:ing the amount of metal required :Eor the casting in tl-e direction of the mold with concomitant induction heating thereof. One feature of the invention resides therein that continuously only a small metal volume is to be heated, while, simultaneously, care is being taken that the just heated metal volume is passed nearly directly to the mold. It is of primary importance that the heated metal volume is moved quickly and in a manner such that the direction of motion of the heated metal volume is at least nearly coincidental with the longitudinal axis of the drawing cross section of the adjacent mold.
The method, accordingly, is to be carried out in a way such that the direction of the guiding of the heated metal volume is horizontal or at least nearly horizontal.
In accordance with one preferred embodiment, the guiding of the molten metal is assisted, in the direction of the mold, by the induction forces.
In accordance with another preferred embodiment, the method is carried out such that the addition of the molten metal is carried out prior to the induction assisted guiding.
In accordance with another preferred embodiment3 the induction heating is controlled in conformity with the temperature determined in the area of the metal entry into the mold.
The apparatus in accordance with the invention is characterized prim-arily by a vessel associated with at least one adjacent mold. The vessel comprises a filling chamber for receiving liquid metal and, spaced apart therefrom, a discharge chamber in communication with the mold, the filling , ~.3.3rd~273 chamber and the discharge chamber being in communication with each other.
In the region of the channels and in the region of the filling and -the dls-charge chambers, an induction heating means is provided.
In accordatlce with one preferred embodlment of the apparatus in accord-~mce l~ith the inventioll, the filling chamber and the discharge chamber are formed in the refractory lining of the vessel.
In accordance with another preferred embodiment, -the channels for com-municating the filling chamber and the discharge chamber extend at least nearly horizontally.
In accordance with another preferred embodiment of the apparatus accord-ing to the invention, the discharge chamber is directly in co~nunication with a mold stone.
Referring now particularly to the drawings, molten metal is passed from a smelting furnace, not shown, by means of an inlet conduit 1 to a vessel 2, either continuously, or in batches.
In the refractory lining 3 of vessel 2 a filling or receiving or supply chamber 4 and, spaced at a distance therefrom, a discharge chamber 5 are pro-vided, the cross section of the latter decreasing in the direction of the mold connection. The supply chamber 4 and the discharge chamber 5 are con-nected by means of channels 6 (Fig. 2), i.e., the channels extend, approxi-mately at the height of the horizontal longitudinal axis 7 of a mold, not shown, through a core 8 which separates the supply chamber 4 and the dis-charge chamber 5. Viewed in the direction of the mold connection, the supply chamber 4 is provided ahead of discharge chamber 5. A mold stone 9 extends into the reduced section 5' of the discharge chamber 5. The pertaining mold, not shown, can mechanically be placed in contact9 under pressure, against the outwardly directed flange end face 9' (Fig. 2) of the mold stone 9.
~; ~
t -~l~l3Y~?273 The channels 6, the longitudinal axis 6' (Fig. 1) of which extends preferably horizontally, or at least nearly horizontally, are arranged and formed, when viewed in the plan view according to Fig. 2, such that the low metal volume passed and accelerated through the channels reachcs directly the region oE the bore 9" of the mold stone cmd, therefore, directly the region oE the drawing cross section of the mold, not shown.
The vessel 2, furthermore, is equipped with cm induction heating means 10 which is preferably formed and arranged so that it is particularly effect-ive in the region of the channels 6, i.e., the metal volume passed there-through is rapidly heated and simultaneously directed in the direction to-wards the mold stone 9. The induction heating means 10 is generally com-prised of a core 11 and a pertaining winding 12. In the preferred embodi-ment (cf. Fig. 1) the components 11 and 12 extend completely through core 8.
This core 8, accordingly, is provided with a through-bore 13 (Fig. 2).
During the drawing operation, the supply chamber 4 is closed by a plug 14 which is supported in the bore of a tap hole (Abstichloch) 15 associated with vessel 2. Exemplary, the capacity of the chambers 4 and 5, inclusive of section 5' and the channels 6 is 200 kg. which corresponds to an overall length of vessel 2 of about 1 meter.
Since the metal flowing from the supply chamber 4 into the discharge chamber 5 is heated in the region of the channels 6, an overheated metal mass reaches the mold stone 9 or the mold~ so that the danger of producing undesirable solidifications in the vicinity in front of the mold is removed or at least reduced. With appropriate formation and control of the induc-tion heating means 10, it can, furthermore, be ensured that the metal volume in the region of channels 6 has an orientation towards the direction of the mold stone 9 and the mold, not shown.
.
~3~
The induction heating is preferably continuously controllable by means of an induction regulator or adjustable transformer, not shown. The con-tinuous control of tlle heating can be part:icular:ly cffcc-ted on the bas:is of cont:i.nuous temperELture mon:itor:ing, for examp.Le, at the f.lange mounting lo-CELtiOII of the mo.ld, not shown, on the mold stone 9.
~ n impor-tant a.dvEmtage of the :invention resides therein that heating, and, thereby, overheat:i.ng of the metal that is being worked with, can be very rapid].y attained, so that the usual attendant inertia of known vessels is overcome. The heating can, particularly, be carried out within a period of time of from less than 1 minute to maximally 10 minutes. This short period is possible because a relatively small metal vo:lume, namely that respectively present in the chalmels 6, is subjected to a high inductively produced heat energy of between about 10 to 300 kW. This high energy, ex-tending in the direction towards the mold, can be controlled so that i.t ex-ceeds the recooling near the mold at highest conductivity values, so that it is possible to counteract the solidification conditions in the mold in the manner required for production of acceptable products.
In a modification of the embodiment, the apparatus, in accordance with a preferred embodiment, can include a mold stone, not shown, with several openings, reaching into the discharge chamber 5 or its reduced section 5'.
Furthermore, the single-phase inductor shown in the drawings can be re-placed by a multi-phase inductor.
The present invention is, of course, in no way restricted to the speci-fic disclosure of the specification and drawings, but also encompases any modifications within the scope of the appended claims.
Claims (5)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An apparatus for the continuous casting of metals comprising a supply chamber, an extension connected to the supply chamber via channels and changing into a mould connection, as well as a core limiting the extension to the supply chamber, said core being penetrated by channels in the longitudinal direction and in this region by an induction heating means perpendicular to the channels, the induction heating means rapidly heating the accelerated metal volume in the channels in the direction of the mould, wherein the supply chamber and the extension designed as a discharge chamber open towards the top are separated from one another merely by the core and are incorporated with it in the refractory lining of a common vessel, the induction heating means being also effective in the supply chamber outside the region of the channels.
2. An apparatus according to claim 1, characterized in that the induction heating means comprises a winding core and a winding contained in a through-bore penetrating the core.
3. An apparatus according to claim 1 or 2, characterized in that the heating capacity of the induction heating means is changeable by means of an adjustable transformer as a function of a temperature measurement in the region of the inlet into the mould.
4. An apparatus according to claim 1, characterized in that the vessel has a capacity of approximately 200 kg metal per mould associated therewith.
5. An apparatus according to claim 1 or 4, characterized in that the over-all length of the vessel is approximately 1 meter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP2825360.3 | 1978-06-09 | ||
| DE19782825360 DE2825360C2 (en) | 1978-06-09 | 1978-06-09 | Induction heated trough for feeding metal into a continuous casting mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1137273A true CA1137273A (en) | 1982-12-14 |
Family
ID=6041447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000329319A Expired CA1137273A (en) | 1978-06-09 | 1979-06-08 | Horizontal continuous casting process and apparatus for continuously producing bolts, rolled plates, and bands |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS54162629A (en) |
| BE (1) | BE876827A (en) |
| CA (1) | CA1137273A (en) |
| CH (1) | CH638413A5 (en) |
| DE (1) | DE2825360C2 (en) |
| FR (1) | FR2427864A1 (en) |
| GB (1) | GB2024676B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT387165B (en) * | 1984-06-26 | 1988-12-12 | Ver Edelstahlwerke Ag | DEVICE FOR CONTINUOUSLY METALLIC MELTING |
| DE3634891C1 (en) * | 1986-10-14 | 1988-05-19 | Didier Werke Ag | Post-heating device in a horizontal continuous caster |
| JPH01107951A (en) * | 1987-10-21 | 1989-04-25 | Nkk Corp | Tundish for horizontal continuous casting |
| SE507606C2 (en) * | 1991-03-06 | 1998-06-29 | Tetra Laval Holdings & Finance | Apparatus for making web-shaped metal foil |
| JPH06210414A (en) * | 1993-01-19 | 1994-08-02 | Nippon Steel Corp | Method for preventing generation of ground circulating current in induction heating device for molten steel |
| CN107020356B (en) * | 2017-06-20 | 2022-06-07 | 无锡市锡山变压器电炉厂 | Three-stream phi 160mm red copper/brass horizontal continuous casting unit |
| CN111014635B (en) * | 2018-10-09 | 2021-07-09 | 宝武特种冶金有限公司 | Continuous casting channel type induction heating tundish and flow field control method thereof |
| CN112893792B (en) * | 2021-01-14 | 2022-05-10 | 东北大学 | Device and method for improving channel type induction heating speed and impurity removal rate |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE746024C (en) * | 1941-10-07 | 1944-12-15 | Russ Elektroofen K G | Induction melting furnace |
| CH496496A (en) * | 1968-11-11 | 1970-09-30 | Wiener Schwachstromwerke Gmbh | Equipment for horizontal continuous casting |
| SE324863B (en) * | 1968-11-14 | 1970-06-15 | Asea Ab | |
| DE1954763A1 (en) * | 1969-07-01 | 1971-02-04 | Adamec Ing Alfred | Operating an inductor with ingot mould |
-
1978
- 1978-06-09 DE DE19782825360 patent/DE2825360C2/en not_active Expired
-
1979
- 1979-04-04 CH CH310679A patent/CH638413A5/en not_active IP Right Cessation
- 1979-04-18 FR FR7909695A patent/FR2427864A1/en active Pending
- 1979-06-07 JP JP7068879A patent/JPS54162629A/en active Pending
- 1979-06-07 GB GB7919858A patent/GB2024676B/en not_active Expired
- 1979-06-07 BE BE0/195617A patent/BE876827A/en not_active IP Right Cessation
- 1979-06-08 CA CA000329319A patent/CA1137273A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2427864A1 (en) | 1980-01-04 |
| GB2024676B (en) | 1982-04-07 |
| DE2825360C2 (en) | 1983-10-27 |
| CH638413A5 (en) | 1983-09-30 |
| GB2024676A (en) | 1980-01-16 |
| DE2825360A1 (en) | 1979-12-13 |
| JPS54162629A (en) | 1979-12-24 |
| BE876827A (en) | 1979-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3618917A (en) | Channel-type induction furnace | |
| US3519059A (en) | Method of vacuum slag refining of metal in the course of continuous casting | |
| US3991263A (en) | Means for tapping | |
| CN110814305B (en) | Cu-Fe composite material double-melt mixed casting equipment and process | |
| US2590311A (en) | Process of and apparatus for continuously casting metals | |
| CN101745629A (en) | Method for preparing semi-solid alloy rheological slurry or billet through annular-gap type electromagnetic stirring | |
| CA1137273A (en) | Horizontal continuous casting process and apparatus for continuously producing bolts, rolled plates, and bands | |
| CN110724841B (en) | Preparation method of immiscible alloy and continuous casting equipment | |
| US2955333A (en) | Electric arc furnaces | |
| US7849912B2 (en) | Process for electroslag remelting of metals and ingot mould therefor | |
| US3587718A (en) | Continuous casting apparatus | |
| US6217825B1 (en) | Device and fireproof nozzle for the injection and/or casting of liquid metals | |
| RU1819188C (en) | Method and apparatus for cooling steel ingots at continuous casting | |
| EP0116405A1 (en) | Steel production using channel induction furnace | |
| US2779073A (en) | Receptacle for molten metal | |
| US4584015A (en) | Process and system for the production of very pure alloys | |
| CN108188369A (en) | A kind of semi-solid rheological molding method and device | |
| CN1470343A (en) | High-smelting point thixotropic metal bland and composite material intermittent preparing process and apparatus | |
| US3685570A (en) | Means for casting | |
| CN108465790B (en) | Continuous liquid supply device for preparing large-size magnesium alloy long slab ingot and use method | |
| US3368273A (en) | Method and apparatus for continuously casting and rolling metal | |
| CN100391651C (en) | Technological method for producing iron bronze alloy strip plate by horizontal continuous casting method and its crystallizer | |
| CN107020356B (en) | Three-stream phi 160mm red copper/brass horizontal continuous casting unit | |
| CN219944607U (en) | Vacuum horizontal continuous casting tundish | |
| US5595237A (en) | Horizontal continuous casting apparatus for metals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |