EP3417959B1 - Sekundärkühlung eines strangs in einer stranggiessanlage - Google Patents

Sekundärkühlung eines strangs in einer stranggiessanlage Download PDF

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Publication number
EP3417959B1
EP3417959B1 EP18179585.7A EP18179585A EP3417959B1 EP 3417959 B1 EP3417959 B1 EP 3417959B1 EP 18179585 A EP18179585 A EP 18179585A EP 3417959 B1 EP3417959 B1 EP 3417959B1
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EP
European Patent Office
Prior art keywords
coolant
strand
nozzle
line
switchover valve
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.)
Active
Application number
EP18179585.7A
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German (de)
English (en)
French (fr)
Other versions
EP3417959A1 (de
Inventor
Christian ENZINGER
Thomas Fuernhammer
Thomas Stepanek
Helmut Wahl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Primetals Technologies Austria GmbH
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Primetals Technologies Austria GmbH
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Filing date
Publication date
Application filed by Primetals Technologies Austria GmbH filed Critical Primetals Technologies Austria GmbH
Priority claimed from PCT/EP2016/070441 external-priority patent/WO2017042059A1/de
Publication of EP3417959A1 publication Critical patent/EP3417959A1/de
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Publication of EP3417959B1 publication Critical patent/EP3417959B1/de
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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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
    • B22D11/225—Controlling or regulating processes or operations for cooling cast stock or mould for secondary cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/08—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape of pulsating nature, e.g. delivering liquid in successive separate quantities
    • 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
    • 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
    • B22D11/1246—Nozzles; Spray heads

Definitions

  • the invention relates to a line end segment of a cooling device for secondary cooling of a strand in a strand guide of a continuous casting plant.
  • the invention also relates to a cooling device for secondary cooling of a strand in a strand guide of a continuous caster.
  • a metallic strand is formed in a mold and then guided in a strand guide and cooled further in the process.
  • the cooling of the strand in the strand guide is called secondary cooling, while cooling of the strand in the mold is called primary cooling.
  • secondary cooling a coolant, for example water or a water-air mixture, is usually applied to the strand by means of a cooling device.
  • a secondary cooling device and a cooling method for secondary cooling of a strand in a continuous casting plant are known, in which the cooling power is set by PWM control of the duty cycle of a switching valve. How the ratio between the maximum and the minimum individual coolant flow is increased and, in addition, the formation of a suitable jet profile (in particular the opening angle of the coolant jet from the coolant outlet) can be achieved even with small individual coolant flows, does not emerge from the document.
  • the invention is based on the object of specifying an improved line end segment and an improved cooling device for secondary cooling of a strand in a continuous casting plant.
  • a line end segment and a cooling device for secondary cooling of a strand should be specified, with which or which a for Strand cooling particularly suitable jet profile of a coolant jet can be realized.
  • the cooling device according to the invention for secondary cooling of a strand in a strand guide of a continuous casting plant comprises at least one line end segment according to the invention.
  • a pneumatically or electrically or electromagnetically or hydraulically switchable valve is suitable as the switching valve of the line end segment.
  • a switching valve designed in this way is advantageously commercially available and enables an inexpensive implementation of an individual coolant flow that can be switched on and off.
  • control line is a pneumatic compressed air line in the case of a pneumatically switchable switching valve, an electrical line in the case of an electrically or electromagnetically switchable switching valve and a hydraulic fluid line in the case of a hydraulically switchable switching valve.
  • a further development of the invention provides that the outlet nozzle has an exchangeable nozzle tip.
  • An exchangeable nozzle tip advantageously enables a jet profile of a coolant jet emitted by the coolant outlet to be changed, if necessary, in a simple manner by exchanging the nozzle tip.
  • the switching valve is screwed onto the segment tube, in particular by a tube-valve screw connection which is formed by an external thread on an outer surface of the segment tube and a corresponding internal thread of the switching valve.
  • the outlet nozzle can have a nozzle tip with the coolant outlet and a nozzle base body.
  • the The nozzle base body is screwed onto the switching valve, in particular by a valve-nozzle screw connection which is formed by an external thread on an outer surface of the switching valve and a corresponding internal thread of the nozzle base body.
  • the nozzle tip can be screwed to the nozzle base body, in particular through an internal thread of the nozzle body and a corresponding external thread of the nozzle tip.
  • the connecting flange has a centering bolt arranged between the flange openings.
  • cooling device provides at least one longitudinal row of several coolant outlets arranged one behind the other along a transport direction of the strand and / or at least one transverse row of several coolant outlets arranged next to one another transversely to a transport direction of the strand.
  • cooling device provides a pressure detection device for detecting a coolant pressure or a flow meter for detecting a coolant flow in a coolant distribution system of the cooling device.
  • Such a pressure detection device advantageously enables functions of the cooling device to be analyzed and checked, for example the determination of a degree of blockage of coolant outlets by a Evaluation of the signals detected by the pressure detection device.
  • an actual value of a coolant pressure or coolant flow for regulating the coolant pressure or coolant flow in the coolant distribution system can be recorded.
  • Figure 1 shows schematically a section of a continuous caster 1 in a side view. Shown are a mold 3, an oscillation device 4 for moving the mold 3 relative to a strand 9, a strand guide 5 downstream of the mold 3 and a cooling device 7 of the continuous casting plant 1.
  • the strand guide rollers 13 above the Line 9 and the line segments 17.1 and the coolant outlets 21 below the line 9 are not shown. It is known to the person skilled in the art that after exiting a mold in the secondary cooling, a strand is typically guided by strand guide rollers above and below the strand and the broad sides of the strand lying above and below are cooled.
  • a metallic melt is fed to the mold 3, from which the metallic strand 9 is formed with the mold 3, which is guided with the strand guide 5 and transported along a transport direction 11.
  • movements of the mold 4, in particular oscillating movements (the direction of movement is shown by an arrow) of the mold 4 are generated, so that the strand 9 does not adhere to an inner surface of the mold.
  • the strand guide 5 has several strand guide rollers 13 to support the strand 9.
  • the mold 3 has a width adjustment for setting a width of the strand 9, so that strands 9 of different widths can be produced with the mold 3.
  • the strand guide 5 has a casting thickness adjustment for setting a thickness of the strand 9, so that strands 9 of different thicknesses can be produced with the strand guide 5.
  • the cooling device 7 is used for secondary cooling of the strand 9 in the strand guide 5.
  • the cooling device 7 comprises a coolant distribution system 15 with line segments 17.1 to 17.4 for conveying a coolant 19 and several coolant outlets 21 distributed over the strand guide 5 for outputting coolant 19 onto the strand 9.
  • the coolant 19 is, for example, water.
  • the continuous casting installation 1 shown is designed for what is known as horizontal continuous casting, in which the strand 9 is output horizontally from the mold 3 to the strand guide 5.
  • the invention in particular a cooling device 7 according to the invention, is not limited to continuous casting plants 1 for horizontal continuous casting, but in particular also relates to continuous casting plants 1 which are designed for so-called vertical continuous casting, in which the strand 9 emerges vertically through a bottom opening of the mold 3 Mold 3 is issued to the strand guide 5 and the strand guide 5 is designed to be curved, so that the strand 9 is brought along the strand guide 5 from a horizontal to a vertical position.
  • FIG. 2 shows schematically an exemplary embodiment according to the invention of a cooling device 7 for secondary cooling of a strand 9 in a continuous casting plant 1 in a perspective illustration. Only a section of the strand 9 is shown, which is located in the area of the cooling device 7. Furthermore, of this section of the strand 9 and of the coolant distribution system 15 of the cooling device 7, only one area is shown, which extends over half a width of the strand 9 from a lateral strand edge 9.1 of the strand 9 to a central axis 9.2 running parallel to the transport direction 11 of the strand 9 extends.
  • a further area of the coolant distribution system 15 extends, which is designed in the same way as that in FIG Figure 2 area shown, these two areas being mirror-symmetrical with respect to a reflection on a mirror plane which contains the central axis 9.2 and is perpendicular to a strand surface 9.3 of the strand 9.
  • the coolant outlets 21 of the coolant distribution system 15 form several longitudinal rows of coolant outlets 21 arranged one behind the other along the transport direction 11 of the strand 9 Form coolant outlets 21.
  • the coolant distribution system 15 has eight longitudinal rows of coolant outlets 21 arranged next to one another, each longitudinal row having four coolant outlets 21.
  • Alternative exemplary embodiments have one of eight different numbers of longitudinal rows of coolant outlets 21 arranged next to one another and / or at least one longitudinal row with one of four different numbers of coolant outlets 21.
  • Each coolant outlet 21 forms an end of a line end segment 17.1 facing the strand 9 and running perpendicular to the strand surface 9.3.
  • the coolant distribution system 15 has a line longitudinal segment 17.2 running parallel to the transport direction 11, which connects the line end segments 17.1 having these coolant outlets 21 to one another.
  • the coolant distribution system 15 also has a transverse line segment 17.4 running transversely to the transport direction 11, which is connected to each longitudinal line segment 17.2 via an intermediate line segment 17.3 running perpendicular to the strand surface 9.3.
  • Each line end segment 17.1 also has an outlet nozzle 33 with the coolant outlet 21 for outputting coolant 19, see in this regard Figure 3 .
  • a switching valve 23 is arranged in each line end segment 17.1, with which a coolant supply of coolant 19 to the coolant outlet 21 of this line end segment 17.1 can be interrupted.
  • Each switching valve 23 is designed as an on / off valve that has two operating states, the switching valve 23 releasing the coolant supply to the coolant outlet 21 in a first operating state and blocking the coolant supply to the coolant outlet 21 in the second operating state.
  • a change in the operating state of a switching valve 23 is referred to here as switching the switching valve 23; Switching from the first to the second operating state is referred to as closing the switching valve 23 and switching from the second to the first operating state is referred to as opening the switching valve 23.
  • Precisely one individual coolant flow Q, which is output from a coolant outlet 21, can therefore be switched on and off by each switching valve 23.
  • the switching valves 23 are connected to a control unit 27 via control lines 25.1 to 25.4 and can be switched by the control unit 27.
  • Each control line 25.1 to 25.4 connects the switching valves 23 of a longitudinal row of coolant outlets 21 with the control unit 27.
  • the control lines 25.1 to 25.4 can run at least in sections in pipes of line segments 17.1 to 17.4, see the description of FIG Figure 3 below.
  • the switching valves 23 are designed as pneumatically or electrically or electromagnetically or hydraulically switchable valves. Accordingly, the control lines 25.1 to 25.4 in the case of pneumatically switchable switching valves 23 are pneumatic compressed air lines, in the case of electrically or electromagnetically switchable switching valves 23 are electrical lines and in the case of hydraulically switchable switching valves 23 are hydraulic fluid lines.
  • the control unit 27 is designed to switch the switching valves 23 in a manner described below.
  • the cooling device 7 further comprises a pressure detection device 29 for detecting the coolant pressure P in the coolant distribution system 15.
  • the signals detected by the pressure detection device 29 are fed to the control unit 27 via a pressure signal line 31.
  • the control unit 27 evaluates these signals to analyze and check functions of the cooling device 7, for example to determine a degree of blockage of the coolant outlets 21.
  • Figure 3 shows a perspective view of a line end segment 17.1.
  • the line end segment 17.1 comprises a segment tube 35, a connecting flange 37, a switching valve 23 and an outlet nozzle 33.
  • the connecting flange 37 is arranged at a first end of the segment tube 35 and can be connected to a line longitudinal segment 17.2.
  • the switching valve 23 is arranged, which is attached to this end of the segment tube 35, for example by a pipe-valve screw connection 39, which is formed by an external thread on the outer surface of the segment tube 35 and a corresponding internal thread of the switching valve 23, can be screwed on.
  • the outlet nozzle 33 has a nozzle tip 33.1 with a coolant outlet 21 and a nozzle base body 33.2.
  • the nozzle body 33.2 is arranged on the switching valve 23 and can be screwed onto the switching valve 23, for example by a valve-nozzle screw connection 41, which is formed by an external thread on the outer surface of the switching valve 23 and a corresponding internal thread of the nozzle body 33.2.
  • the nozzle tip 33.1 is arranged on the nozzle base body 33.2.
  • the nozzle body 33.2 has an internal thread which corresponds to an external thread of the nozzle tip 33.1, so that the nozzle tip 33.1 can be detachably connected to the nozzle body 33.2.
  • a jet profile of a coolant jet emitted by the outlet nozzle 33 can advantageously be changed by changing the nozzle tip 33.1.
  • the segment tube 35 is used to guide coolant 19 to the coolant outlet 21 and to guide an end section of a control line 25.1 to 25.4 to the switching valve 23.
  • the segment tube 35 has, for example, an outer tube and an inner tube running in the outer tube, with between the outer tube and the inner tube coolant 19 is guided and the inner tube forms or surrounds the end section of a control line 25.1 to 25.4.
  • the connecting flange 37 has two flange openings 37.1, 37.2, a first flange opening 37.1 serving to feed coolant 19 into the segment tube 35 and the second flange opening 37.2 for guiding the control line 25.1 to 25.4 in the segment tube 35 is used.
  • the connecting flange 37 also has a centering bolt 42 arranged between the flange openings 37.1, 37.2 in order to be able to assemble and align the line end segment 17.1 more easily.
  • FIG 4 shows schematically an exemplary embodiment, not according to the invention, of a cooling device 7 for secondary cooling of a strand 9 in a continuous casting plant 1 in a to Figure 2 analog perspective representation.
  • This in Figure 4 The illustrated embodiment differs from that in the Figures 2 and 3rd illustrated embodiment in that a switching valve 23 for a coolant outlet 21 is not arranged in each of the line end segments 17.1, but that for each longitudinal row of coolant outlets 21 only one switching valve 23 connected to the control unit 27 via a control line 25.1 to 25.4 is arranged in an intermediate line segment 17.3 is, so that a coolant supply from the line cross segment 17.4 to a line longitudinal segment 17.2 and all the line end segments 17.1 connected to it can be interrupted by each of these switching valves 23.
  • a check valve 43 is arranged in order, after a coolant supply to the line end segment 17.1 has been blocked by the corresponding switching valve 23, an output of coolant 19, which is located in line segments 17.1 to 17.3 between the switching valve 23 and check valve 43, to the Strand 9 to prevent.
  • the cooling device 7 of the in Figure 4 illustrated embodiment analogous to that in the Figures 2 and 3rd illustrated embodiment formed.
  • the switching valves 23 are like the switching valves 23 in the Figures 2 and 3rd illustrated embodiment as on / off valves formed, which can be switched by the control unit 27 in a manner described in more detail below.
  • the line end segments 17.1 in turn each have an outlet nozzle 33, the nozzle tip 33.1 of which is preferably designed to be exchangeable.
  • the illustrated embodiment requires that in Figure 4
  • the illustrated embodiment advantageously has fewer switching valves 23.
  • a higher clock frequency of the pulse-width-modulated switching of the switching valves 23 (when using similar switching valves 23 in both embodiments) enables a more flexible control of the cooling with an individual control of the switching valves 23 and reduces the effects of a failure of an individual switching valve 23, since a such failure affects a smaller surface area of the strand 9.
  • FIGS Figures 5 to 7 illustrate a cooling method for secondary cooling of a strand 9 in a continuous casting installation 1 with a cooling device 7, which is like one of the in FIGS Figures 2 to 4 illustrated embodiments is formed.
  • FIG. 11 shows a diagram for a coolant pressure P as a function of a single coolant flow Q through an outlet nozzle 33 of the cooling device 7, which, like one of the in FIGS Figures 2 and 4th illustrated embodiments is formed.
  • the individual coolant flow Q emitted from the outlet nozzle 33 through the coolant outlet 21 is in at least one flow range ⁇ Q for its mean value over time Q switched on and off by a pulse-width-modulated control of a switching valve 23 and thus itself pulse-width-modulated, see Figure 6 .
  • this Current range ⁇ Q limited by a threshold current Q S , which corresponds to a threshold pressure P S.
  • a maximum pressure P M and a corresponding maximum flow Q M for which the outlet nozzle 33 is designed, are also shown.
  • the threshold flow Q S is specified in such a way that the coolant pressure P below the corresponding threshold pressure P S is no longer sufficient to achieve an intended jet profile of a coolant jet emitted by the outlet nozzle 33, in particular an intended opening angle of the coolant jet, to achieve a sufficiently large area to cover the strand surface 9.3 with the coolant jet.
  • the individual coolant flows Q are output in the usual way, ie without pulse width modulation.
  • the switching valves 23 of the individual coolant flows Q to be generated are opened and the coolant pressure P or a coolant flow in the coolant distribution system 15 is regulated by means of a control circuit 45 to a setpoint dependent on the individual coolant flows Q to be generated, see Figure 9 .
  • Figure 6 shows a profile of a pulse-width-modulated individual coolant flow Q of an outlet nozzle 33 as a function of a time t.
  • the pulse width modulation has a clock period of the period length T or a clock frequency 1 / T.
  • the individual coolant flow Q has a constant, non-zero current pulse value Q P in a first half of each clock period and disappears in the second half of each clock period.
  • the time average is accordingly Q of the individual coolant flow Q in this example is half as large as the current pulse value Q P.
  • the pulse width modulation allows mean values with a current pulse value Q P that is greater than the threshold current Q S Q a single coolant flow Q can be realized, which is smaller than the threshold current Q S.
  • individual coolant flows Q can be realized, their mean values over time Q are smaller than the threshold flow Q S and which nevertheless generate an intended jet profile of a coolant jet emitted by the outlet nozzle 33.
  • Figure 7 shows diagrammatically temporal progressions of coolant flows Q 1 to Q 4 and a total coolant flow Q G , which are output by a cooling device 7 for secondary cooling of a strand 9 in a continuous casting plant 1 as a result of a pulse-width-modulated switching of the switching valves 23.
  • the cooling device 7 is like one of the in the Figures 2 or 4th illustrated embodiments formed, wherein Figure 7 to simplify the illustration of a cooling device 7 with only four longitudinal rows of coolant outlets 21 instead of as in the exemplary embodiments of FIG Figures 2 and 4th eight longitudinal rows refers to ( Figure 7 can also show temporal progressions of coolant flows Q 1 to Q 4 and a total coolant flow Q G in the Figures 2 or 4th represent the halves of the respective cooling devices 7 shown, the other halves (not shown) being controlled analogously).
  • the coolant flows Q 1 to Q 4 are each output from all coolant outlets 21 of a longitudinal row together and are therefore each a sum of the individual coolant flows Q of the coolant outlets 21 of a longitudinal row, the individual coolant flows Q each being analogous to Figure 6 are pulse width modulated.
  • the total coolant flow Q G is output from the coolant outlets 21 of all these longitudinal rows together and is the sum of the coolant flows Q 1 to Q 4 .
  • the switching valves 23 are switched by the control unit 27 in a pulse width modulated manner with a clock period of the period length T or with a clock frequency 1 / T.
  • the switching valves 23 for the various longitudinal rows of Coolant outlets 21 are switched with a time offset to one another, so that the total coolant flow Q G is constant over time.
  • the switching valves 23 are switched in such a way that a first coolant flow Q 1 disappears during a second half of each cycle period, a second coolant flow Q 2 disappears during a first and last quarter of each cycle period, and a third coolant flow Q 3 disappears during the first half of each cycle period , a fourth coolant flow Q 4 disappears during a second and third quarter of each cycle period and the coolant flows Q 1 to Q 4 in the remaining times assume a constant, non-zero value for all longitudinal rows, which is half the total coolant flow Q G is.
  • the total coolant flow Q G is regulated to a predetermined setpoint during the pulse width modulation.
  • an actual value of the total coolant flow Q G is determined and a duty cycle D and the period length T of the pulse width modulation are regulated as a function of a deviation of the determined actual value from the setpoint.
  • the duty cycle D of the pulse width modulation is understood to mean the ratio of a pulse duration during a clock period to the period length T. In the in the Figures 6 and 7th In the examples shown, the duty cycle D is, for example, 50% in each case.
  • coolant pressures P in line segments 17.1 to 17.4, via which individual coolant flows Q are output are recorded and the individual coolant flows Q output in each case are deduced from this by means of current-pressure characteristics.
  • the actual value of the total coolant flow Q G is then formed as the sum of these individual coolant flows Q, each multiplied by the respective duty cycle D of the pulse width modulation.
  • Figure 8 shows the duty cycle D of the pulse width modulation of an individual coolant flow Q as a function of the mean value Q of the individual coolant flow Q in the flow range ⁇ Q.
  • the duty cycle end value D m assumes the value 1, for example. If the coolant pressure P in the coolant distribution system 15 is set to a higher pressure value, the duty cycle end value D m is correspondingly smaller.
  • a selection of coolant outlets 21, through which individual coolant flows Q are output, is also made as a function of a width of the strand 9. Coolant outlets 21, which are not required to cool the strand 9 because they are located next to the strand surface 9.3, for example only release blow-out air in a pulse pause or a short water pulse to prevent these coolant outlets 21 from clogging.
  • Figure 9 shows a control circuit 45 for regulating a coolant pressure P or coolant flow in the coolant distribution system 15 in order to generate individual coolant flows Q which are greater than the threshold flow Q S.
  • the controlled variable R of the control loop 45 is therefore the coolant pressure P or coolant flow in the coolant distribution system 15.
  • a reference variable S of the control loop 45 is accordingly a setpoint value of the coolant pressure P or coolant flow in the which depends on the individual coolant flows Q Coolant distribution system 15.
  • the control circuit 45 comprises a controller 47, a controlled system 49 and a measuring element 51.
  • the controller 47 is a pump for the direct generation of a coolant pressure P or coolant flow in the coolant distribution system 15, or a pump with a downstream pressure or flow controller for Reduction of a coolant pressure P or coolant flow generated by the pump in the coolant distribution system 15.
  • the controlled system 49 is the coolant distribution system 15.
  • the measuring element 51 is a pressure detection device 29 for detecting the coolant pressure P or a flow detection device for detecting a coolant flow in the coolant distribution system 15
  • Controlled variable R, a system deviation E of the controlled variable R from the reference variable S is formed.
  • the controller 47 generates a manipulated variable U that is dependent on the control deviation E in order to reduce the control deviation B.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
EP18179585.7A 2015-09-07 2016-08-31 Sekundärkühlung eines strangs in einer stranggiessanlage Active EP3417959B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT507672015 2015-09-07
ATA50985/2015A AT517772B1 (de) 2015-09-07 2015-11-19 Sekundärkühlung eines Strangs in einer Stranggießanlage
PCT/EP2016/070441 WO2017042059A1 (de) 2015-09-07 2016-08-31 Sekundärkühlung eines strangs in einer stranggiessanlage
EP16757916.8A EP3347151B1 (de) 2015-09-07 2016-08-31 Sekundärkühlung eines strangs in einer stranggiessanlage

Related Parent Applications (2)

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EP16757916.8A Division EP3347151B1 (de) 2015-09-07 2016-08-31 Sekundärkühlung eines strangs in einer stranggiessanlage
EP16757916.8A Division-Into EP3347151B1 (de) 2015-09-07 2016-08-31 Sekundärkühlung eines strangs in einer stranggiessanlage

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EP3417959A1 EP3417959A1 (de) 2018-12-26
EP3417959B1 true EP3417959B1 (de) 2021-05-26

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EP16757916.8A Active EP3347151B1 (de) 2015-09-07 2016-08-31 Sekundärkühlung eines strangs in einer stranggiessanlage

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AT520006B1 (de) * 2017-06-07 2021-08-15 Primetals Technologies Austria GmbH Kühlmitteldüse zum kühlen eines metallischen strangs in einer stranggussanlage

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AT409940B (de) * 2001-02-20 2002-12-27 Voest Alpine Ind Anlagen Zweistoff-schaftdüse und stranggiessanlage mit einer anordnung von zweistoff-schaftdüsen
AT503526B1 (de) * 2006-04-25 2008-07-15 Voest Alpine Ind Anlagen Spritzdüsen-verstelleinrichtung
WO2011144266A1 (de) * 2010-05-19 2011-11-24 Sms Siemag Ag Strangführungsvorrichtung
EP2527061A1 (de) * 2011-05-27 2012-11-28 Siemens VAI Metals Technologies GmbH Verfahren zur Kühlung eines metallischen Strangs und Schaltventil zum intermittierenden Öffnen und Schließen eines Volumenstroms eines Kühlmediums
DE202011110064U1 (de) * 2011-06-07 2012-11-16 Sms Siemag Ag Düsenvorrichtung und Strangführungsvorrichtung mit der Düsenvorrichtung

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AT517772B1 (de) 2018-12-15
EP3417959A1 (de) 2018-12-26
EP3347151A1 (de) 2018-07-18
AT517772A1 (de) 2017-04-15
BR112018004427B1 (pt) 2022-08-23
BR112018004427A2 (enrdf_load_html_response) 2018-10-02
EP3347151B1 (de) 2021-05-19

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