RU2754072C2 - Crystallizer having crystallizer separator - Google Patents

Abstract

FIELD: metallurgy.

SUBSTANCE: invention relates to continuous casting, it can be used for simultaneous casting of two ingots. Crystallizer (1) contains two walls (5, 6) with holes (33a, 33b) and separator (3). The separator contains separation unit (9) with two outer surfaces (11, 12) separating inner space (7) of the crystallizer into two spaces, and at least one channel (55) for coolant to cool at least one outer surface (11, 12). The separation unit is affected by the clamping force from the first and second clamping pistons. At least one first clamping piston (31a) is passed through first hole (33a) made in first wall (5) of the crystallizer. At least one second clamping piston (31b) is passed through second hole (33b) made in second wall (5) of the crystallizer. Clamping pistons (31a, 31b) are moved by means of a drive each along its longitudinal axis to and from separation unit (9).

EFFECT: invention provides convenience and reduces the time of installation and disassembly of the separator.

14 cl, 10 dwg

Description

The invention relates to a mold having a mold separator for mounting in a mold, as well as a method for the simultaneous continuous casting of two continuous ingots using a mold and a mold separator.

On the one hand, the invention relates to a mold having a mold separator for mounting in a mold, the mold having two mold walls spaced apart from each other, between which the mold interior extends for passing the melt, a mold separator including

- a separating block having two outer surfaces for dividing the inner space of the mold into two separate spaces, which are separated from each other by the outer surfaces of the separating block, and

- at least one cooling channel for cooling liquid extending in the separating block for cooling at least one outer surface.

On the other hand, the invention relates to a method for the simultaneous continuous casting of two continuous ingots in one mold using a mold and a mold splitter.

In continuous casting installations, the metal melt is poured into a cooled mold, in which the crystallization of the melt begins. In the inner space of the mold, the surface regions of the melt crystallize to form the so-called shell of the workpiece, which still encloses the liquid central part of the metal. A continuous metal ingot with a billet crust is drawn from the mold, which is then further cooled. A mold separator is understood to mean a device that divides the interior of the mold into two separate spaces, in which a continuous ingot of reduced width can be produced, so that, in particular, two continuous ingots can be drawn out of the mold simultaneously.

US 4,637,452 A discloses an in-mold mold divider that is substantially T-shaped having a beam section and a middle section extending midway from the beam section. After installation in the mold, the middle section divides the inner space of the mold, and the section of the beam lies on the upper sides of the mold walls opposite to each other, between which the inner space of the mold passes.

The disadvantage is that the installation of the mold separator in the mold or, accordingly, the dismantling of the mold separator from the mold cannot be carried out in the mounted state of the mold on the continuous casting plant, and the mold is first dismantled from the continuous casting plant and transferred to the maintenance area, where reassembly (assembly or, respectively, dismantling) of the mold spacer, and only then the reassembled mold is re-installed in the continuous casting plant. This leads to the fact that the reassembly of the mold spacer takes a long time, while the continuous casting plant cannot carry out production, and therefore its productivity is reduced. Particularly inconvenient is the laborious reassembly of the dummy bar during the so-called "top feeding" into the continuous casting installation, i. E. when the seed is introduced into the mold from above (from the side of the mold filling). According to the prior art, "top feeding" is not possible with molds with a mold divider, so the seed must always be introduced into the mold from the bottom before starting casting (from the side of the mold outlet, the so-called "bottom feeding").

A related mold separator is known from DE 20 2016 105 609 U1, which can be mounted in the mold from the casting side within a relatively short time. Thanks to the quick assembly and disassembly of this mold spacer, “top feeding” of the seed into the mold becomes possible.

The disadvantage of this solution is that the mold spacer has to screw on and off on the casting side of the mold, and the wedge and screw connections must also be adapted when reworking the copper plate. This is a possible source of defects and also prolongs the replacement time for the mold spacer.

The object of the invention is to propose a further improved system consisting of a mold and a mold separator for mounting in the mold. In particular, the time for dismantling the mold separator from the mold, introducing the seed into the mold from the "top feeding" and mounting the mold separator in the mold should be further reduced. Thus, it should become more convenient "top feeding" for molds with mold spacers.

The problem is solved in accordance with the invention using the features of claim 1 of the claims and the features of claim 7 of the claims.

Preferred embodiments of the invention are the subject of the dependent claims.

Specifically, a crystallizer according to the invention having a mold separator for mounting in a mold has

- at least one first clamping piston, which is threaded through the first opening of the mold wall into the first wall of the mold, and

- at least one second clamping piston, which is threaded through the second opening of the mold wall into the second wall of the mold, whereby the first and second clamping pistons can each move along their longitudinal axis to the separating unit and from the separating unit by means of a hydraulic or pneumatic or electromechanical drive and with their help a clamping force can be transmitted to the dividing block.

Thanks to the design of the mold with at least one first and one second clamping piston, the mold spacer can be mounted in the mold and removed from the mold much faster.

Compared to DE 20 2016 105 609 U1, for example, the manual pressing of the first mold wall 5 against the base plate 17, 18 by means of the clamping wedge 25 (see FIG. 2) is eliminated. In addition, the manual screwing of the retaining element 10 to the mold wall 5 by means of clamping screw connections 27 is eliminated (see FIG. 1).

This is achieved by means of at least one first clamping piston, which is located opposite the first wall of the mold, and by means of at least one second clamping piston, which is located opposite the second wall of the mold. Clamping pistons are inserted through the openings of the mold walls into the mold walls. These walls of the mold are usually the walls of the wide side of the slab mold. Each clamping piston is driven, for example, hydraulically, pneumatically or electromechanically, so that the piston rod of the clamping piston can move along its longitudinal axis towards the separating unit and away from the separating unit. When the piston rod of the clamping piston moves, the separating block can be clamped in the mold by the clamping rod. In this case, the assembly and disassembly of the mold spacer can be widely automated, since manual pressing by means of the clamping wedge and manual screwing of the retaining element are eliminated.

According to a preferred embodiment, the mold has several, eg two first clamping pistons and several, eg two second clamping pistons. Since the dividing block in the pouring direction has approximately the same length as the wall of the mold, it is preferable to clamp the dividing block in the pouring direction in several places. In this case, the clamping force is evenly distributed along the wall of the mold and the separating block in the direction of casting.

Moreover, it is preferable when said at least one first clamping piston is located in the middle of the first wall of the mold, and said at least one second clamping piston is located in the middle of the second wall of the mold. In this case, the clamping force is evenly distributed over the wall of the mold and the dividing block in the width direction.

It is also expedient when the clamping rod can be threaded through the recess of the clamping piston in said at least one first clamping piston and said at least one second clamping piston. This achieves the possibility of interchangeable clamping rods and the need to have only one spare part in stock.

In order to be able to purposefully adjust the clamping force, it is preferable that the mold has at least one force regulator for adjusting the clamping force of the at least one first clamping piston and / or at least one second clamping piston.

For clamping pistons having a pneumatic or hydraulic drive, it is expedient when the force regulator is a pneumatic or hydraulic pressure regulator.

Other embodiments of a mold splitter are known from DE 20 2016 105 609 U1 and are incorporated by reference into this publication.

The object of the invention is also solved by a method of simultaneous continuous casting of two continuous ingots in one mold using a mold and a mold separator.

Preferred embodiments are the subject of the dependent claims.

Specifically, the solution is carried out using the method of simultaneous continuous casting of two continuous ingots in one mold using a mold and a mold separator, while before the start of continuous casting, the seed, which has a seed head having a seed recess for the mold separator, is passed through the mold from the casting side of the mold, so that the dummy head is located on the drain side outside the mold,

- the separator of the crystallizer, after threading the seed through the crystallizer, is mounted in the crystallizer and

- the seed head, after mounting the mold separator from the side of the drain, is inserted into the mold, so that the mold separator protrudes into the seed recess.

In this case, the seed is introduced into the mold by means of "top feeding" without the mold divider, so that the seed head lies below the outlet side of the mold. After that, the mold separator is mounted in the mold. Finally, the dummy head is introduced into the mold from the outlet side against the casting direction, so that the dividing bar protrudes into the recess of the dummy bar and the two separate mold spaces are sealed in a fluid-tight manner.

According to one of the preferred embodiments, when mounting the mold separator in the mold, the mold separator is first introduced into the mold from the casting side without a clamping rod, then said at least one first clamping piston is moved to the separating unit of the mold separator, then the clamping rod is inserted from the casting side through the recess said at least one first clamping piston, and thereafter the first clamping piston is moved away from the separation unit until the clamping rod is clamped in the recess of said at least one first clamping piston. Thereafter, said at least one second clamping piston is moved to the separating block of the mold divider, then another clamping rod from the casting side is passed through the recess of said at least one second clamping piston, after which said at least one second clamping piston is moved away from the separating block until the clamping rod is clamped in the recess of said at least one second clamping piston.

Of course, it is also possible for the second clamping piston to move first, the clamping rod is inserted and the clamping rod to be clamped in the recess of the second clamping piston, before the same steps are performed on the first clamping piston.

It is also possible, of course, that both clamping pistons move substantially synchronously, the clamping rods are inserted synchronously and the clamping rods are clamped in the recess of the clamping piston. Thanks to the synchronized movements, the installation time of the mold spacer can be further reduced.

It is advisable that, before threading the seed head through the mold, the mold separator installed in the mold is dismantled from the mold.

Preferably, the clamping adjustment of the first and / or second clamping piston is force controlled or force controlled. It is especially preferred when the clamping is adjusted using a pneumatic or hydraulic pressure regulator. Hydraulic or pneumatic pressure regulators are very well known to the person skilled in the art, eg from the special books Fundamentals of Hydraulics and Pneumatics, Part 1, Hydraulics, and Part 2, Pneumatics, and are distinguished by their particular mechanical strength. In addition, the cyclical movement of the mold is already carried out hydraulically, so the additional costs are low.

When dismantling the mold separator from the mold, first, the at least one first clamping piston moves to the separating unit until the clamping of the clamping rod in the recess of the said at least one first clamping piston is stopped, then the clamping rod is removed from the casting side through the recess of the first clamping piston then said at least one first clamping piston is moved away from the separation unit of the mold spacer. Thereafter, said at least one second clamping piston moves towards the separating unit until the clamping of the clamping rod in the recess of the second clamping piston is released, then the clamping rod is removed from the casting side through the recess of the said at least one second clamping piston, then said at least at least one second clamping piston is moved away from the mold separator block and finally the mold separator is removed from the mold on the casting side.

It is, of course, also possible here for the steps to be carried out first with the second clamping piston and then the same steps with the first clamping piston.

In addition, the two clamping pistons can then move substantially synchronously as well.

The above-described properties, features and advantages of this invention, as well as the method for achieving them, become clearer and more clearly understood in the context of the following description of examples of implementation, which are explained in more detail with reference to the drawings. This shows:

1 is a perspective view of a mold and a mold separator made of DE 20 2016 105 609 U1, mounted in the mold;

FIG. 2 is a cross-sectional view of the mold shown in FIG. 1 having an assembled mold separator made of DE 20 2016 105 609 U1; FIG.

Fig. 3 is an elevational view of a mold 1 according to the invention having a mold separator 3 mounted;

Fig. 4 is a plan view of Fig. 3;

Fig. 5 is a cross-sectional view along lines A-A of the cross-section of Fig. 3;

Fig. 6 is a half-section perspective view of a mold having a mold splitter mounted;

Fig. 7: a seed threaded through the crystallizer;

Fig. 8: the seed head after threading the seed through the mold and the mold separator mounted in the mold;

Fig. 9: a seed head after the mold is closed with a seed and a mold separator mounted in the mold; and

Fig. 10 is a front view of the seed head.

Corresponding parts are provided with the same reference signs throughout the figures.

1 shows a perspective view of a mold 1 and a separator 3 of a mold made of DE 20 2016 105 609 U1 mounted in the mold 1.

The mold 1 has mold walls 5, 6 spaced apart from each other, parallel to each other, between which the mold inner space 7 for passing the melt extends.

The mold divider 3 includes a separating block 9 having two outer surfaces 11, 12 for dividing the inner space 7 of the mold into two separate spaces, which are separated from each other by the outer surfaces 11, 12 of the separating block 9, with only the first outer surface 11. Further, the separator 3 of the mold includes a holding element 10 connected to the first end of the separator block 9, which, after mounting the separator 3 of the mold in the mold 1, rests on the upper sides of the two walls 5, 6 of the mold and in the illustrated embodiment extends as their sides facing away from the inner space 7 of the mold. The holding element 10 is connected by clamping screw connections 27 with the separating block 9. The outer surfaces 11, 12 form one casting cone on both sides of the separating block 9 to compensate for the shrinkage of the continuous ingots formed in the mold 1 when passing through the mold 1. That is, the outer surfaces 11, 12 are made not plane-parallel, but have a distance between them, which increases with increasing distance to the holding element 10.

On the outer narrow sides of the mold 1, which lie opposite the outer surfaces 11, 12 of the separating block 9, the inner space 7 of the mold is closed in a known manner by side walls not shown in FIG. 1, which can preferably each move towards the separating block 9 and away from the separating block 9, to be able to produce continuous ingots having different widths of continuous ingots.

FIG. 2 shows a cross-sectional view of the mold shown in FIG. 1 and a separator 3 of a mold made of DE 20 2016 105 609 U1 mounted in the mold 1.

The dividing block 9 includes two opposed dividing plates 13, which each form one of the two outer surfaces 11 of the dividing block 9, and a middle section located between the dividing plates 13, which is connected to the two dividing plates 13. The dividing plates 13 are made, for example, in the form of copper plates. The middle section of the spacer block 9 has two support plates 18 connected to each other, the first support plate, for example, by screw connections, connected to the first spacer plate, and the second support plate 18, for example, by screw connections, to the second spacer plate. Optionally, temperature sensors, for example thermocouples, can be located on the separating block 9 to register the temperatures of two separating plates 13.

The base plates 18 on two opposite sides 19, 20 of the walls of the separating block 9, which each face one wall 5, 6 of the mold, are connected to each other by screw connections. These screw connections have (not shown in the figures) screws which are threaded each through bores 21 in two corresponding connecting spouts 24 protruding on each side 19, 20 of the wall from the base plates to each wall 5, 6 of the mold.

The mold spacer 3 is fixed in the mold 1 by clamping. On the side of the first wall 5 of the mold, a clamping wedge 25 is inserted between the first wall 5 of the mold and the base plates 18 for clamping, and the holding element 10 is connected by clamping screw connections 27 to the first wall 5 of the mold. From the side of the second wall 6 of the mold, the dividing block 9 can be detachably connected by means of two clamping piston sockets 29 located on the base plates 17, 18 to two clamping pistons 31. Each clamping piston 31 is threaded through the hole 33 of the mold wall in the second wall 6 of the mold into one from two seats 29 for the clamping piston and can be moved by means of a hydraulic cylinder 35 along its longitudinal axis. In alternative embodiments, instead of the hydraulic cylinders 35, other clamping piston drives 31, such as pneumatic or electromechanical drives, can be used. Further, the mold divider 3 has a clamping rod 39, which is threaded through the recess 51 of the holding element in the holding element 10, the recesses 52 of the clamping pistons in the clamping pistons 31 and the recesses 53 of the clamping piston seats 53 in the clamping piston seats 29.

The separator 3 of the crystallizer also has two cooling pipes 41, 42 running between the two outer surfaces 11 of the separating block 9, the first cooling pipe 41 being a cooling pipe that runs on the first side of the wall of the separating block 9 facing the first wall 5 of the crystallizer, and the second the cooling pipe 42 is a cooling pipe which runs on the second side 20 of the wall of the separation unit 9 facing the second wall 6 of the crystallizer. so that it can tilt away from the mold 1 without removing the mold 1 from the continuous casting machine.

The retaining element 10 has, for each cooling line 41, 42, a connecting line 43, 44 connected to the cooling line 41, 42 for supplying coolant to the cooling line 41, 42.

Further, the separator 3 of the mold has a block 45 for guiding the continuous ingot, which is connected to the second end of the separating block 9 facing away from the holding member 10, and has a plurality of rollers 47 for guiding the continuous ingot for guiding the continuous ingots discharged from the mold 1. Each cooling conduit 41, 42 extends from the holding member 10 to the continuous ingot guiding unit 45 to discharge coolant to the continuous ingot guiding unit 45.

To supply lubricant for the bearing supports of rollers 47 for guiding the continuous ingot, similarly to the supply of coolant to the block 45 for guiding the continuous ingot, at least one (not shown) lubrication line can be provided, which runs on or in the separating block 9 from the holding element 10 to block 45 for guiding the continuous ingot.

Each wall 5, 6 of the mold on each of the two sides of the separation block 9 from the side of the inner space 7 of the mold is lined with one wall plate 49, which extends from the separation block 9 to the end of the wall 5, 6 of the mold.

In each base plate 18 and a separator plate 13, 14 connected to the base plate 18, a cooling channel 55 for cooling liquid for cooling the separating plate 13. Each cooling channel 55 is connected to an inlet 57 running in the retaining element 10 for supplying coolant to the channel 55 cooling and with an outlet passage 59 extending in the holding element 10 for draining the coolant from the cooling passage 55. The retaining element 10 has for each inlet 57 an inlet 61 and for each outlet 59 an outlet 63. The inlets 61 and outlet 63 in the illustrated embodiment are located on the underside of the retaining element 10 (see FIG. 2), however, in other embodiments, they may alternatively be located on the upper side of the holding member 10 or laterally. Each cooling channel 55 extends, for example, from a connected inlet 57, first in this base plate 18 downward towards the block 45 for guiding the continuous ingot, then from the base plate 18 into the separating plate 13 connected to the base plate 18, then into the separating plate 13 downwards towards the retaining element 10, and finally in the base plate 18 to the outlet duct 59 connected to the cooling channel 55 in the retaining element 10.

According to DE 20 2016 105 609 U1, the mold spacer 3 is mounted in the mold 1 from above. In this case, the mold spacer 3 is first introduced into the mold 1 without the clamping rod 39 and is pressed on the first wall side 19 by the clamping wedge 25 and the clamping screw connection 27 to the first wall 5 of the mold. Then each clamping piston 31 in a controlled manner and with reduced pressure moves to the separator 3 of the mold in one of the seats 29 for the clamping piston. Thereafter, the clamping rod 39 is mounted on top, and then the clamping pistons 31 in a controlled manner with reduced pressure are briefly moved in the other direction until the clamping rod 39 is clamped in the recesses 52 of the clamping piston. To dismantle the separator 3 of the mold from the mold 1, the mold 1 moves in the reverse order. First, the pressure of the clamping pistons 31 on the clamping rod 39 is released by briefly moving the clamping piston 31 so that the clamping rod 39 can be removed. After the clamping rod 39 has been removed, the clamping pistons 31 move away from the mold spacer 3. Then the separator 3 of the crystallizer rises from the crystallizer 1 upwards.

Further details of the DE 20 2016 105 609 U1 solution are contained in the laid-out description of the invention and are incorporated by reference into this publication.

Figures 3-6 show a crystallizer 1 according to the invention having a crystallizer separator 3 in various views.

Fig. 3 is an elevational view, Fig. 4 is a horizontal projection, Fig. 5 is a cross-sectional view, and Fig. 6 is a half-sectional perspective view of a mold 1 according to the invention having a mold separator 3 mounted.

In contrast to the DE 20 2016 105 609 U1 solution, the mold spacer 3 is clamped by the two walls 5, 6 of the mold 1 by means of each first and second clamping piston 31a, 31b. The two first clamping pistons 31a are passed through the first two holes 33a of the mold wall through the first mold wall 5 and by means of the clamping stub 39 and the clamping piston recesses 52 the first side of the mold divider 3 is clamped in the first clamping piston. In the same way, two second clamping pistons 31b are threaded through two second mold wall holes 33b through the second mold wall 6 and by means of another clamping rod 39 and clamping piston recesses 52 in the second clamping piston the second side of the mold spacer 3 is clamped. The gripping rods are preferably positioned with a handle so that they can easily be threaded through the recess 51 of the holding element and through the recesses 53 (seats) of the gripping pistons 31a, 31b, or, respectively, removed from them again. Thanks to the hydraulic clamping of the mold divider 3, it is no longer necessary to screw the holding element 10 to at least one mold plate 5, 6 or to clamp one side of the mold divider 3 with a clamping wedge 25. In particular, the abandonment of the clamping wedge plays an important role in practice, since the plates 5, 6 molds wear out during operation and therefore must be subject to rework. But because of this, the thickness of the mold plates changes. Therefore, due to this change in thickness, the clamping wedge must be re-installed manually, which greatly increases the time required. In other words, the mold separator 3 itself can be designed in accordance with DE 20 2016 105 609 U1, only the clamping of the mold separator 3 in the mold 1 according to the invention differs.

In Fig.7-10 shows a method of simultaneous continuous casting of two continuous ingots in one mold 1 using a separator 1 of the mold. For the continuous casting of two continuous ingots, first, in the above-described manner, the mold separator 3, possibly mounted in the mold 1, is dismantled from the mold 1. Then the seed 65, which has a seed head 67 having a seed recess 69 for the mold separator 3, from the casting side of the mold 1 is passed through the mold 1 so that the seed head 67 is located on the discharge side outside the mold 1. Then the mold separator 3 is mounted in the mold 1 by double-sided hydraulic clamping. After that, the seed head 67 is again introduced a little further into the mold 1 so that the mold spacer 3 protrudes into the seed recess 69 and the seed 65 covers the mold 1 from the casting side. After that, the actual process of continuous casting begins, in which the mold 1 is filled with melt from both sides of the separator 3 of the mold.

10 is a schematic front view of a seed head 67 65 having a seed recess 69 for a mold spacer 3. The recess 69 of the seed is located in the middle of the end 66 of the seed 65 and has a width that corresponds to the width of the mold spacer 3 used in this case.

Fig. 7 shows how the seed 65 is passed through the mold 1 from the casting sides of the mold 1. The seed 65 has several seed links 70 movably linked to each other. The first and second clamping pistons 31a, 31b of the hydraulic cylinders 35 on both sides of the mold spacer are in a retracted position.

Figure 8 shows the position of the seed head 67 after threading the seed 65 through the mold 1 and the mold separator 3 mounted in the mold 1. In this case, the seed head 67 is located on the side of the drain outside the mold 1. The first and second clamping pistons 31a, 31b of the hydraulic cylinders 35 on both sides of the mold separator are, in accordance with this illustration, in a position extended to the separating block 9, so that the clamping rods 39 can is inserted through the recesses 51 of the retaining members and the recesses 52 of the first and second clamping pistons 31a, 31b.

Figure 9 shows the position of the seed head 67 and the end 66 of the seed after the mold 1 is closed by the seed 65. The first and second clamping pistons 31a, 31b of the hydraulic cylinders 35 on both sides of the mold separator are, in accordance with this image, somewhat moved back from the separation unit 9 position so that the clamping rods 39 are clamped in the recesses 52 of the first and second clamping pistons 31a, 31b. In the illustrated case, the clamping force is transmitted to the first and second clamping pistons 31a, 31b in a controlled manner by means of a pressure regulator, so that clamping of the mold spacer 3 is guaranteed also during operation.

From this embodiment, it is clear to the skilled person that it does not matter whether the first clamping pistons 31a are first clamped by the first clamping bar 39, whether the second clamping pistons 31b are clamped first by the second clamping bar 39, or, as shown here, the first and second clamping pistons 31a, 31b clamped by the clamping rods 39 synchronously.

When dismantling the separator 3 of the crystallizer from the crystallizer 1, as already briefly explained above, the process is carried out in the reverse order of the assembly. In this case, first, the at least one first clamping piston 31a is moved in the direction of the separating unit 9 until the clamping of the first clamping rod in the recess 52 of the clamping piston stops. The clamping bar 39 can then be removed. Thereafter, the first clamping pistons 31a are moved away from the separation block 9. The same steps are followed for the second clamping pistons 31b. Finally, the mold spacer 3 is removed from the mold 1 from the casting side.

Here again, it is clear to the person skilled in the art that it does not matter whether the clamping of the first clamping piston 31a by the clamping bar 39 is first stopped, whether the clamping of the second clamping piston 31b by the clamping bar 39 first stops, or whether the clamping of the first and second clamping pistons 31a, 31b by the clamping rods stops synchronously, i.e. e. at about the same time.

Although the invention has been illustrated in detail and described in detail with reference to preferred embodiments, the invention is not limited to the disclosed examples, and other variations may be deduced from there by one skilled in the art without departing from the scope of the invention.

LIST OF REFERENCE SYMBOLS

1 Crystallizer

3 Mold spacer

5, 6 Mold wall

7 Inner space of the mold

9 Separator block

10 Retaining element

11, 12 Outside surface

13, 14 Spacer plate

17, 18 Base plate

19, 20 Wall side

21 Drilling

27 Clamping wedge

27 Clamping screw connection

29 Clamping piston seat

31 Clamping piston

31a First clamping piston

31b Second clamping piston

33 Opening of the mold wall

33a First opening of the mold wall

33b Second opening of the mold wall

35 Hydraulic cylinder

39 Clamping rod

41, 42 Cooling line

43, 44 Connecting pipe

45 Block for guiding continuous ingot

47 Roller for guiding continuous ingot

49 Wall slab

51 Retaining element recess

52 Removing the clamping piston

53 Removing the clamping piston seat

55 Cooling duct

57 Inlet

59 Outlet duct

61 Inlet

63 Outlet

65 Seed

66 End of seed

67 dummy head

69 Removing the dummy bar

70 Seed link.

Claims (28)

1. Crystallizer (1) with a separator (3) for the simultaneous continuous casting of two continuous ingots, including two, spaced from each other, walls (5, 6), between which the inner space (7) of the mold for passing the melt is located, when In this case, the separator (3) of the mold, made with the possibility of mounting in the mold (1), includes: - a dividing block (9) with two outer surfaces (11, 12) for dividing the inner space (7) of the mold (1) into two separate spaces, which are separated from each other by the outer surfaces (11, 12) of the dividing block (9), and - at least one cooling channel (55) extending in the separation unit (9) for cooling liquid for cooling at least one outer surface (11, 12), characterized in that the crystallizer (1) has: at least one first opening (33a) formed in the first wall (5) of the mold, and at least one second opening (33b) made in the second wall (6) of the mold, and supplied at least one first clamping piston (31a) adapted to pass through a first opening (33a) in the first wall (5) of the mold, and at least one second clamping piston (31b) adapted to be guided through a second opening (33b) in the second wall (6) of the mold, wherein the first and second clamping pistons (31a, 31b) are movable by means of a hydraulic or pneumatic or electromechanical drive, each along its longitudinal axis, to and from the separating unit (9), and with the possibility of transferring to the separating unit (9) clamping force. 2. Crystallizer (1) according to claim 1, characterized in that it has several, in particular two, first clamping pistons (31a) and several, in particular two, second clamping pistons (31b). 3. Crystallizer (1) according to claim 1 or 2, characterized in that said at least one first clamping piston (31a) is located in the middle of the first wall (5) of the mold, and said at least one second clamping piston (31b) is located in the middle of the second wall (6) of the mold. 4. Crystallizer (1) according to any one of claims. 1-3, characterized in that it comprises a clamping rod (39) adapted to pass through a recess (52) made in at least one first clamping piston (31a) and in at least one second clamping piston (31b) ... 5. Crystallizer (1) according to any one of claims. 1-4, characterized in that it comprises at least one force regulator for adjusting the clamping force of at least one first clamping piston (31a) and / or at least one second clamping piston (31b). 6. Crystallizer (1) according to claim 5, characterized in that the force regulator is a pneumatic or hydraulic pressure regulator. 7. The method of simultaneous continuous casting of two continuous ingots in one crystallizer (1) using a crystallizer (1) with a separator (3) of the crystallizer according to any one of claims. 1-6, while before the start of continuous casting - a dummy bar (65) having a dummy bar head (67), made with a recess (69) for a mold separator (3), is passed through the mold (1) from the casting side of the melt, ensuring that the dummy bar (67) is located on the discharge side outside the mold ( 1), - the separator (3) of the crystallizer, after threading the seed (65) through the crystallizer (1), is mounted in the crystallizer (1), and - the head (67) of the seed, after mounting the separator (3) of the mold from the side of the drain, is introduced into the mold (1) so that the separator (3) of the mold goes into the recess (69) of the seed, - the process of continuous casting is started, in which the mold is filled with melt from both sides of the separator. 8. The method according to claim 7, characterized in that for mounting the mold separator (3) in the mold (1), the mold separator (3) is first introduced into the mold (1) from the casting side without a clamping rod (39), then at least one first clamping piston (31a) is moved to the separating unit (9) of the separator (3) of the mold, then the clamping rod (39) is passed from the casting side through the recess (52) of the first clamping piston (31a), the first clamping piston (31a) is moved away from separating unit (9) with the provision of clamping the clamping rod (39) in the recess (52) of the first clamping piston (31a), then at least one second clamping piston (31b) is moved to the separating unit (9) of the mold separator (3), threaded the other clamping rod (39) from the casting side through the recess (52) of the second clamping piston (31b), move the second clamping piston (31b) away from the separating unit (9), ensuring the clamping of the clamping rod (39) in the recess (52) of the second clamp piston (31b). 9. The method according to claim 7, characterized in that for mounting the mold separator (3) in the mold (1), the mold separator (3) is first introduced into the mold (1) from the casting side without a clamping rod (39), then said at least at least one second clamping piston (31b) is moved to the separating unit (9) of the separator (3) of the mold, then the clamping rod (39) is threaded from the casting side through the recess (52) of the second clamping piston (31b), after which the second clamping piston (31b ) is moved away from the separating block (9) until the clamping rod (39) is clamped in the recess (52) of the second clamping piston (31b), and then said at least one first clamping piston (31a) is moved to the separating block (9 ) of the mold spacer (3), then another clamping rod (39) from the casting side is threaded through the recess (52) of the first clamping piston (31a), after which the first clamping piston (31a) is moved away from the separation unit (9) until the clamping The th rod (39) will not be clamped in the recess (52) of the first clamping piston (31a). 10. The method according to any one of claims. 7-9, characterized in that before threading the seed head (67) through the mold (1), the mold separator (3) mounted in the mold (1) is dismantled from the mold (1). 11. The method according to any one of claims. 7-10, characterized in that the adjustment of the clamping of the first and / or second clamping piston (31a, 31b) is carried out with the possibility of controlling the force or with the possibility of adjusting the force. 12. The method according to claim 11, characterized in that the clamping is adjusted using a pneumatic or hydraulic pressure regulator. 13. The method according to any one of claims. 10-12, characterized in that in order to dismantle the separator (3) of the mold from the mold (1), at least one first clamping piston (31a) is first moved to the separating unit (9) to ensure that the clamping of the clamping rod (39) in the recess ( 52) of the first clamping piston (31a), then the clamping rod (39) is removed from the filling side through the recess (52) of the first clamping piston (31a), at least one first clamping piston (31a) is moved away from the separating block (9) of the separator ( 3) of the mold, then at least one second clamping piston (31b) is moved to the separating unit (9) to ensure that the clamping of the clamping rod (39) in the recess (52) of the second clamping piston (31b) is removed, the clamping rod (39) is removed from the sides of the pouring through the recess (52) of the second clamping piston (31b), move at least one second clamping piston (31b) away from the separation unit (9) of the mold spacer (3) and remove the spacer (3) from the mold (1) from the pouring side. 14. The method according to any one of claims. 10-12, characterized in that in order to dismantle the separator (3) from the mold (1), first, said at least one second clamping piston (31b) is moved to the separating unit (9) so that the clamping of the clamping rod (39) in the recess ( 52) of the second clamping piston (31b), then the clamping rod (39) is removed from the filling side through the recess (52) of the second clamping piston (31b), at least one second clamping piston (31b) is moved away from the separating block (9) of the separator ( 3) of the mold, then at least one first clamping piston (31a) is moved to the separating unit (9) so that the clamping of the clamping rod (39) in the recess (52) of the first clamping piston (31a) is stopped, then the clamping rod (39) is removed from the casting side through the recess (52) of the first clamping piston (31a), at least one first clamping piston (31a) is moved away from the separation unit (9) of the mold spacer (3) and the spacer (3) is removed from the mold (1) from the pouring side.

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