EP0213389A2 - Procédé d'exploitation d'une installation de coulée continue et machine d'oxycoupage de la billette pour sa mise en oeuvre - Google Patents

Procédé d'exploitation d'une installation de coulée continue et machine d'oxycoupage de la billette pour sa mise en oeuvre Download PDF

Info

Publication number
EP0213389A2
EP0213389A2 EP86110343A EP86110343A EP0213389A2 EP 0213389 A2 EP0213389 A2 EP 0213389A2 EP 86110343 A EP86110343 A EP 86110343A EP 86110343 A EP86110343 A EP 86110343A EP 0213389 A2 EP0213389 A2 EP 0213389A2
Authority
EP
European Patent Office
Prior art keywords
strand
cutting machine
measuring
weighing
casting
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.)
Granted
Application number
EP86110343A
Other languages
German (de)
English (en)
Other versions
EP0213389A3 (en
EP0213389B1 (fr
Inventor
Horst K. Lotz
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.)
Aute AG Gesellschaft fuer Autogene Technik
Original Assignee
Aute AG Gesellschaft fuer Autogene Technik
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aute AG Gesellschaft fuer Autogene Technik filed Critical Aute AG Gesellschaft fuer Autogene Technik
Priority to AT86110343T priority Critical patent/ATE48960T1/de
Publication of EP0213389A2 publication Critical patent/EP0213389A2/fr
Publication of EP0213389A3 publication Critical patent/EP0213389A3/de
Application granted granted Critical
Publication of EP0213389B1 publication Critical patent/EP0213389B1/fr
Expired legal-status Critical Current

Links

Images

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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/126—Accessories for subsequent treating or working cast stock in situ for cutting

Definitions

  • the invention relates to a method for operating a continuous casting plant with a flame cutting machine for separating continuous castings.
  • the operation of a continuous caster depends on a large number of operating data.
  • large and therefore uneconomical tolerances are often provided, since the determination of operating data is based on theoretical values, which in practice are caused by various circumstances, such as mold wear and mold setting tolerances, casting temperature, casting speed, wear and tear Adjustment of support or drive rollers, cooling conditions and other more, not insignificant deviations, so that - to safely get a workpiece of a certain material weight - there are often large safety tolerances, which thus lead to an unavoidable loss of material.
  • the present invention is based on the object of making an optimizing strand cutting machine available which, in particular with a flame cutting machine, permits the cutting of a workpiece of a desired length which corresponds exactly or almost to a specific workpiece weight.
  • the invention has recognized that to achieve this goal it is necessary to start from the actual operating values of the continuous casting plants, and that these actual operating values can only be obtained at the moment when the values to be determined are no longer influenced, ie in Area of the flame cutting machine that cut the Performs casting strand to achieve the workpiece.
  • the invention accordingly consists in the fact that measurement data, such as strand width, strand thickness and strand cross-sectional shape, as well as casting temperature, casting speed, homogeneity over the running strand length, strand surface defects and specific material weight are recorded on the flame cutting machine, evaluated in a computing and control device and the values are optimized Control of the continuous caster on the one hand for direct operation and on the other hand for long-term optimization.
  • the invention proposes that the values obtained be entered into the flame cutting machine itself in order to cut a workpiece of a desired length which corresponds exactly or almost to a specific workpiece weight.
  • the invention proposes that for a loss-free cutting of the flame cutting machine as a calibration workpiece, a first strand piece determined with conventional safety supplements is measured and separated, and that the known temperature, homogeneity and shape deviations from a weight that takes the ideal case into account / Length ratio can be entered as a calibration value in a new piece length specification for cutting off a second strand piece in the flame cutting machine.
  • the invention proposes that a second strand piece produced on the basis of the calibration value is re-weighed and its weight / length ratio is used as a correction value for determining the piece length of the third piece, furthermore the correction values of the third for the fourth strand piece, etc.
  • measuring devices for strand thickness, strand width, cross-sectional shape, temperature or other weight-determining properties are advantageously used in the area of the flame cutting machine to improve or confirm the measurement result.
  • the invention also makes a continuous cutting machine available for continuous casting plants for carrying out the method.
  • the strand cutting machine is provided with a track arranged parallel to the strand, on which the machine can be moved by means of a machine carriage and a follower for hydraulic, pneumatic or motorized clamping or unclamping, and is characterized by the fact that on or in the area of the cutting machine
  • Multiple measuring device is provided for recording a large number of measurement data, such as strand width, strand thickness and strand cross-sectional shape, as well as casting temperature, casting speed, homogeneity over the running strand length, strand surface defects and specific material weight.
  • An advantageous embodiment consists in that the computing and control device is used for long-term optimization for the entire continuous casting installation, in that the measured values are used to adjust the size of the casting mold, deform the strand support rollers in the rolling stand, the casting speed, the cooling conditions to reduce the convex and concave strand deformations and warning signals, for example to initiate the exchange of the mold or the rollers during a subsequent repair and for correction factors of the flame cutting machine.
  • a particularly advantageous embodiment of the invention is that the weighing device consists of two to three or, depending on the length of the strand, more weighing rollers, which can be raised and lowered on pressure measuring devices in the outlet roller table behind the flame cutting machine and that the weighing device raises the currently cut strand piece at a standstill or run for weighing, based on a position, z. B. from a light barrier.
  • flame cutting machine 2 being understood to mean the entire flame cutting machine system is, with the conventional support structures, rails and other parts for travel movements, supply devices and a multiple measuring device, to which a computing and control device 16 and a weighing device 8 is assigned.
  • the multiple measuring device 21 goes far beyond the previous devices for piece length measurement. Rather, it is used to record a large number of measurement data, such as strand width, strand thickness and strand cross-sectional shape, as well as casting temperature, casting speed, homogeneity over the running strand length, strand surface defects and specific material weight.
  • the flame cutting machine 2 with its multiple measuring device 21 is used for long-term optimization for the entire continuous casting installation 10, 11, 12 by using the measured values via the connecting line 20 can find for adjusting the size of the mold 12, deforming the strand support rollers in the rolling stand, the casting speed, the cooling conditions to reduce the convex and concave strand deformations and warning signals, for example to initiate the replacement of the mold 12 or the rollers during a subsequent repair and for Corrections on the flame cutting machine 2.
  • the multiple measuring device 21 has a width and strand thickness measuring device 21e, so that it is fundamentally possible to determine the weight of the workpiece to be cut by means of the specific weight.
  • the multiple measuring device 21, 21e is designed such that scanning operations take place at several points with respect to the width and thickness of the workpiece, as well as from both sides, ie to the right and left of the casting strand 1 and above and below, to determine the exact shape of the Workpiece, in particular a possible concave or convex formation.
  • the measurement of the strand width can be carried out by means of pulse generators which are firmly connected to the pinion and rack drive on burner transverse travel drives and a pulse counter to determine the distances from predetermined and repeatable zero points to the two strand edges.
  • Edge sensors are installed between the control of the torch travel and the cutting cycles so that the actual width of strand 1 can be measured for further processing and creation of correction factors or signals.
  • pulse generators on the clip arm system for pincer-like clamping on the string sides and to provide a pulse counter, the distances from the predetermined and repeatable, fully open zero positions to the clamped string sides being measured by touch, so that the actual string width for the Further processing for creating correction factors or signals can be passed on.
  • Another option is to install pulse generators with pulse counters on two specially installed probe rod systems, which can be moved from specific and repeatable zero-starting positions to contact on the string sides at appropriate times and thus give the actual string width for further processing to create correction factors and signals .
  • the strand thickness measuring device 21e with which the multiple measuring device 21 of the flame cutting machine 2 is provided, consists either of a pulse counter and a pulse generator, which meshes with a pinion in a toothed rack, which either has a predetermined and repeatable zero position with the machine parts for placement on the strand 1 for synchronization to the strand 1 and to the flame cutting machine 2 until the contact when placed on the strand 1 with down and thus the actual thickness of the strand that runs on a roller table or the like is supported, which has a certain level, as well as the flame cutting machine 2, which travels on rails with a certain level, for further processing to create correction factors or signals, signals for the further processing to create correction factors be given, or a pulse counter and pulse generator is installed, which is moved by a swinging down, by a compressed air driven arm for friction synchronization of the cutting machine 2 with the upper strand surface, thus the actual strand thickness for further processing and creation of correction factors and / or signals are given.
  • a pulse counter and a pulse generator on a special height probe rod, which moves from a predetermined and repeatable zero position on the appropriate occasion until the strand surface is touched. This gives the actual strand thickness for processing and creating correction factors and / or signals.
  • a pulse counter with a pulse generator can also be provided on the burner height adjustment buttons, with predetermined, repeatable zero positions for moving the burner downwards for the appropriate nozzle spacing after scanning the exact strand surface. This determines the actual strand thickness for further processing to create correction factors and signals.
  • a pulse counter and a pulse generator can also be provided on a lever or slide in a slide guide on or in the area of the flame cutting machine.
  • a measuring roller 7 moves from a specific and repeatable zero position to measure the length or another probe is lowered onto the strand surface and thus the actual strand thickness is determined for further processing and for creating correction factors and / or signals.
  • two or more thickness measuring devices can be provided, which work from bottom to top against the lower strand surface.
  • Existing devices or special drives and probing mechanisms with pulse generators are used to create the thickness measurement results more precisely by forming the difference against the surface measuring pulse measurement and counting device.
  • the multiple measuring device 21 also includes a temperature measuring device 21d.
  • thermometer installed inside or on parts that touch the strand for synchronous operation. Wearing plates of the clamping arms or ride-on runners are to be mentioned here, from which temperature measurements can be carried out at certain times. H. especially for a correction shortly before determining the length of the next workpiece. For this purpose, corresponding signals are input into the length measuring device 21f.
  • Means for measuring the line speed also belong to the said multiple measuring device. These are with a pulse speed counter equipped to determine the number of pulses emanating from the usual length measuring device 21f, which is driven by a measuring wheel from the strand by friction and rotates a pulse generator. Within a predetermined time, e.g. B. 1 minute, the pulses are counted and the actual strand speed in the vicinity of the strand cutting machine 2 is measured in order to process this speed in comparison with empirically determined correction factors or speed ratios and to forward improved correction factors into the length measuring device 21f or at other points in the continuous casting installation.
  • a pulse speed counter equipped to determine the number of pulses emanating from the usual length measuring device 21f, which is driven by a measuring wheel from the strand by friction and rotates a pulse generator.
  • the pulses are counted and the actual strand speed in the vicinity of the strand cutting machine 2 is measured in order to process this speed in comparison with empirically determined correction factors or speed ratios and to forward improved correction factors into the length measuring device 21f
  • the multiple measuring device 21 consists of a multiplicity of measuring devices 21a to g, the most important of which have been explained, ie, if the need to collect special data arises, the multiple measuring device 21 can be expanded accordingly.
  • the multiple measuring device is assigned a computing and control device 16, which processes the measured values obtained and transmits corresponding signals not only for the operation of the continuous cutting machine 2, but also for the entire continuous casting installation 10, 11, 12.
  • corresponding connections 17, 18, 20 and circuits are provided so that, for example, the size of the casting mold 12 can be set on the basis of the signals obtained and emitted or the deforming position of the strand support or transport rollers in the rolling stand of the casting system can be set.
  • Warning signals can also be emitted by the computing and control device 16 of the flame cutting machine 2 in order to indicate, if necessary, the need to replace the mold 12 and the rollers in the event of a future repair.
  • a marking device 21a is also provided on the flame cutting machine for stamping or for labeling or signals to be applied in some other way in the form of letters and / or numbers on the upper sides or front surfaces of the strand 1.
  • This marking takes place with the movement of the flame cutting machine 2 when cutting during the synchronous operation or with a device 21a attached to the flame cutting machine 2, which can also be arranged directly in its vicinity.
  • the future strand pieces are marked while the strand passes at the casting speed or with the aid of a device 21a attached to the flame cutting machine 2, the future strand piece passing at a speed which results from the casting speed and the flame cutting speed while the flame cutting machine is standing or back runs to the starting or starting position.
  • the strand speed pulse generator or counter is used to calculate the necessary relative speed, which corresponds to the marking speed.
  • All of these data applied to the strand with the use of a one, two or more line marking serve to control the operation of the continuous casting installation 10, 11, 12 or flame cutting machine 2 by using data or corresponding signals that relate to material composition, the underlying cutting temperature of the material, the underlying cross-section and workpiece shape, the originally required piece length and more. So it is possible, including more information, e.g. B. strand weight measurement to determine the final cold length or a statistical system for the end result of a Adjust long-term optimization.
  • a scale removal device 21b also serves for the proper working of a flame cutting machine with the devices described above. It serves for a perfect marking, a better error detection and also a better measurement. It preferably consists of a high-performance heating burner for melting and blowing away the scale in front of and in the area of the marking, preferably on the side surfaces. The removal of the scale ensures a clean and reliable marking result that conveys the necessary information at least until the strand piece enters the reheating furnace. But also in the area of measuring probes or sensors, it is important that scale is removed to ensure an accurate temperature, thickness, width or shape measurement.
  • the scale removal device 21b can be provided with a flame burner in order to clean parts of the outer sides or surfaces for fault finding and to carry out selection error elimination by means of flames.
  • the weight of the removed material is to be entered into the computing and control device 16 by measuring and calculating the length, width and depth of flame paths, in order to determine a piece length correction factor for optimization.
  • the return speed of the flame cutting machine 2 is predetermined in order to determine, together with the continuous casting speed, a relative speed which corresponds to the flame speed.
  • a fault location device 21c which is also arranged on the flame cutting machine, is used for an "in-line" test of hot, warm and cold strand surfaces by means of optical, induction heat or eddy current devices.
  • the device works at casting speed, internal combustion engine travel speed or corresponding relative speeds.
  • Correction factors are obtained by the fault finder 21c, which - based on the fault size - influence the piece length measurement.
  • an optimizing continuous cutting machine 2 is made available which, with its facilities, enables a continuous casting installation 10, 11, 12 to be operated under optimal operating conditions. Above all, the necessary tolerances when cutting off workpieces are significantly reduced, which means that the production or output of the continuous caster is optimized. It is possible to cut a workpiece in a desired length in such a way that it corresponds exactly or almost to a certain workpiece weight.
  • An unmistakable strand piece identification enables quality control and quality improvement, especially for the recommended, energy-saving use of hot strand pieces in pusher furnaces.
  • the strand cutting machine 2 together with conventional piece measuring devices for indicating the start of cutting is the first device which is not used to produce a continuous strand, but rather to produce strand pieces.
  • the strand cutting machine 2 together with conventional piece measuring devices for indicating the start of cutting is the first device which is not used to produce a continuous strand, but rather to produce strand pieces.
  • With a number of movements, partly independent of the strand movement and in particular with the devices 21e for measuring the strand thickness and strand width, as well as further devices of the multiple measuring device 21, which belongs to the flame cutting machine 2, enable in particular an optimized piece length preselection with precise marking of data for piece identification and further processing.
  • FIG. 2 shows a casting strand 1, from which the cropping or composite piece 1 is separated, and a first strand piece or calibration piece 1.1, which is provided with conventional safety supplements. Furthermore, a second strand section 1.2 to be separated, a third strand section 1.3 and a fourth strand section 1.4 are shown. These strand pieces are separated by a strand cutting machine 2, which is cut burner 3 is provided. The strand cutting machine 2 with the cutting torch 3 can be moved along the strand 1 on a flame cutting machine track 4. With the flame cutting machine 2, a measuring wheel 5 runs on a correspondingly arranged rack 6. In addition, a stationary measuring roller 7 is arranged under the strand 1. There is a schematically illustrated weighing device 8 below the run-out roller table, which will be explained in more detail below.
  • the strand pieces 1.1 to 1.4 to be separated must have a certain amount of material so that during subsequent operations e.g. Roll pieces with a certain dimension are guaranteed. Too little material leads to rejects, so that in practice considerable safety surcharges are made.
  • the casting strand 1 is not subject to any changes.
  • the molds for example, wear out and the geometry of the systems is subject to mechanical changes due to temperature influences. Damage to the rollers, the strand guide setting and the narrow side setting on the mold also lead to changes in cross-section.
  • casting technology influences are also of great importance. So changes to the strand result from a pan change, a tundish change, application of casting powder, to name just a few. Above all, however, the casting speed and the casting temperature or the type of cooling also play a major role. The latter in particular is responsible for the formation of the casting strand, ie its spatial deformation.
  • Fig. 3 the computing and control device is shown schematically, which in connection with the weighing device 8 makes it possible to cut strand pieces 1.2 to 1.4 which correspond exactly or almost exactly to the desired requirements.
  • the invention is based on the fact that regardless of the shape of the strand and its homogeneity, the desired amount of material for further processing can be determined by a weighing process.
  • the casting strand 1 is cast from a ladle 10 via a distributor groove 11 through the mold 12 and moves in the direction of arrow 13 into the area of the flame cutting machine 2 with the measuring roller 7.
  • This strand which - as explained - can have a different shape in its shape and change during the casting process and, in addition to changing homogeneity, is also subject to shrinkage, can only be cut into strand pieces that meet the requirements, taking into account a kerf width f for the subsequent processing operations when the amount of material of the cut strand piece reaches a certain value.
  • the amount of material of a casting 1.1 to 1.4 which corresponds to a certain length x1 to x4, can be determined by means of the weighing device 8 by the weight of the corresponding strand piece.
  • a calibration piece 1.1 with the conventional safety supplements separated and weighed by the weighing device 8.
  • the corresponding value is introduced via a transmission line 15 to a process computer 16 for controlling the flame cutting machine.
  • the process computer 16 further receives the measured values from the measuring wheel 5 of the flame cutting machine 2 and from the stationary measuring roller 3 via the transmission line 17 and thus controls the cut or the length x 2 for the second strand piece 1.2 on the basis of the calibration piece 1.1 already cut off.
  • the second strand piece 1.2 is cut off with the length x2, it is also weighed by the weighing device 8 and the measured value is fed back to the process computer 16 via the transmission line 15. If necessary, this determines a correction value for the following third strand section 1.3, so that an optimized length x 3 is also cut off by the flame cutting machine 2. In the same way, the weight of the strand section 1.3 is used to optimize the subsequent fourth strand section 1.4 and the corresponding length x4 is determined, which is to be taken into account when cutting this strand section 1.4 by the flame cutting machine 2.
  • the process computer 6 is connected via a transmission line 8 to a mainframe computer.
  • control or control data can be given to the casting device via the transmission line 20, and vice versa from the casting device 10, 11 , 12 measurement data can be given via the transmission line 20 to the process computer 16 or the mainframe system 19.
  • control for direct operation long-term optimization of the continuous caster can also be made possible.
  • the entire casting process can be mastered in an optimal manner by using a multiple measuring device 21 of the flame cutting machine 2, which is only indicated schematically, to provide data of the strand thickness, strand width, cross-sectional shape, Temperature and other cross-sectional properties are detected by means known per se, such as scanning devices, and passed on to the process computer 16.
  • FIG. 4 shows a workpiece 101 which has been cut from a strand with the aid of a strand cutting machine, not shown.
  • the workpiece 101 is located above a weighing device 102, which is arranged under the workpiece 101.
  • weighing rollers 104 are provided which rest on pivot levers 105 in a pivot bearing 106 which is arranged in a stationary manner and is preferably arranged on the supports 107 for the roller table rollers 103.
  • the weighing rollers 104 on their swivel levers 105 are supported by force or weight measuring devices, which consist of load cells 108 which act on the pressure cylinder 109.
  • the weighing rollers 104 can be raised and lowered, so that in the raised state the workpiece 101 is no longer supported by the roller table rollers 103, but rests solely on the weighing rollers 104, so that a weighing process with respect to the workpiece 101 is carried out via the pressure cells 108 can.
  • the weighing process is initiated when the workpiece 101 has reached a certain position, which is determined, for example, by a light barrier.
  • the weighing process can be carried out at a standstill or continuously, in the latter case additional damping devices (not shown) can be provided for the movement of the workpiece 101.
  • the pressure measurement results with workpiece weight, as well as without workpiece weight, ie the dead weight of the weighing device 102, are forwarded to a length measuring and control device of the flame cutting machine.
  • a new piece length is converted for each subsequent workpiece to be cut from the strand on the basis of the workpiece weight specification and this is entered as a piece length preselection for the flame cutting machine control.
  • the flame cutting machine with an associated weighing device enables the end of the casting strand to be optimized regarding the content of ladles and tundish.
  • the loss due to inaccurate workpiece lengths is minimized, and in the case of sequence castings, adjustment to the most varied changing operating parameters is made possible by the flame cutting machine cutting off workpieces 101 which exactly or almost correspond to a specific workpiece weight.
  • FIG. 5 shows the modified embodiment of a measuring device, in which the workpiece 101 in turn rests on weighing rollers 104 which are arranged between the roller table rollers 103.
  • the weighing rollers 104 can also be designed as webs.
  • the weighing rollers 104 are fastened to balance levers 105, which rest in an articulated manner in balance lever bearings 116.
  • a one-sided piston cylinder arrangement 117 engages the balance lever 105 and is supported on the measuring arm 118 of a force or Weight measuring device 119.
  • the measuring arm 118 rests in a measuring arm bearing 120 and is connected at its opposite end to a pull rod 121 at 122.
  • a further measuring arm 124 which rests in a measuring arm bearing 125 and on which a one-sided cylinder piston arrangement 117 is supported in the same way, acts on the pull rod 121 at 123.
  • the weighing measurement data are passed on from the weighing device, ie from the central scale 126, for controlling the flame cutting machine, which is not shown in detail.
  • the weighing device can work with at least two interacting weighing part devices consisting of weighing roller 104, balance lever 105 and support 117.
  • weighing roller 104 For very long workpieces, two or more weighing component devices 104, 105, 117 are provided, it being practical if there are no side-by-side interactions. More weighing rollers 104 are then provided than are shown in FIG. 5.
  • the corresponding measuring arms must then also be connected to the pull rod 121 of the central scale 126.
  • FIG. 6 shows an internal cutting machine 130, which is located above the strand or the workpiece 101.
  • a synchronization lever 133 is mounted on the machine body 131 at the rear end in a bearing 132, which can be raised or lowered by a pneumatic cylinder 134 on the machine body 131.
  • this carries a shield 135 with a runner 136 in front of the machine body.
  • the flame cutting machine 130 is placed on the line 101, which results in a synchronized movement.
  • a burner track is designated on which the burner carriage 138 sits.
  • the burner carriage 138 carries a burner boom 139 which carries the burner 140 with the nozzle 141 at the lower end.
  • the burner carriage 138 with the burner 140 can be moved across the strand 101 by a water-cooled motor on the burner track 137 so as to separate a workpiece 101 from the strand.
  • a water-permeable heat protection plate 142 which extends below the machine body 131, is fastened to the shield 135.
  • the heat protection plate 142 has a slot 143 through which the burner arm 139 protrudes.
  • a measuring roller lever 144 is fastened, which carries at its lower end a measuring roller 145 which runs laterally along the strand 101.
  • FIG. 7 shows a flame cutting machine 130 with a modified lever system for producing the synchronous movement of the flame cutting machine with the strand.
  • the flame cutting machine corresponds in principle to that explained in FIG. 6, and in this respect the reference numerals refer to the same parts.
  • a parallelogram lever system is suspended from the machine body 131 in bearings 132a and 132b.
  • a lever 133a is articulated on the bearing 132a
  • a lever 133b is articulated on the bearing 132b.
  • the levers 133a and 133b carry a main link 133c which runs parallel to the machine body 131 and is raised or lowered by the pneumatic cylinder 134.
  • the main link 133c carries the shield 135 with a skid 136 which is placed on the strand 101 to produce a synchronous movement.
  • a flame cutting machine 2 is shown above the casting strand 1.
  • This consists of a machine frame 23 with wheels 24. These roll on the track 25, which rests on a support 26.
  • the machine frame carries a torch track 27 with a torch carriage 28, to which the cutting torch 3 is attached via a torch arm 29.
  • Lowering rockers 31 are attached in bearings 30, which make it possible for a lifting and lowering cylinder 32 to lower the burner track 27 via a lifting lowering arm 33 until the skid 34, which is attached to a support frame 35, comes to rest on the casting strand 1.
  • a heat protection plate 36 Arranged under the burner track 27 is a heat protection plate 36 through which water flows, which has an angled shape and protects the flame cutting machine 2 against heat radiation from below and in front.
  • a slot 37 is provided in the front part of the heat protection plate 36, through which the burner cantilever arms 29 pass chen and carry the burner 3.
  • a supply pipe 38 for pelletizing water.
  • This supply tube 38 is formed from square tubes and carries burner alignment stops 39 for precisely aligning the burners 3 with one another in order to achieve cuts which are exactly aligned in one plane on the casting strand 1.
  • the machine frame 23 is welded together from hollow profiles and is flowed through by water for cooling purposes.
  • This machine frame 23, consisting of transverse and longitudinal profiles, is a torsion-resistant construction and therefore also ensures accurate guidance of the burners 3 and thus an exact cut on the casting strand 1.
  • FIG. 11 shows a measuring roller 7 which runs on the strand 1 with its measuring wheel 41.
  • the measuring wheel 41 sits at the end of a hollow measuring shaft 42 through which a centrally arranged, rotating cooling water pipe 43 extends.
  • the hollow measuring shaft 42 is mounted in the measuring roller housing 45 with the aid of measuring shaft bearings 44.
  • the measuring shaft housing 45 can be pivoted about a tilting bearing 47 by means of a reciprocating piston 46.
  • the measuring shaft housing 45 with the reciprocating piston 46 and the tilting bearing 47 is mounted on a sliding carriage 48 which can be displaced at right angles to the casting strand movement by means of a sliding drive 49, so that the measuring wheel 41 can be displaced transversely to the strand axis for twin or triple casting.
  • a drive wheel 50 which is connected via a drive chain or a toothed belt 51 to a drive wheel 52 which is connected to a pulse generator 53.
  • a water supply pipe 54 leads to a rotating water feedthrough 55, from which the cooling water pipe 43 in the hollow measuring shaft 42 is fed.
  • a water channel is designated, which is attached to the transfer carriage 48.
  • the stationary measuring roller 3 can also not be designed to be displaceable or it can not be mounted stationary on the flame cutting machine 2.
  • An overhead tilting bearing can be provided, from which the measuring wheel runs hanging on the strand, which is not shown.
  • the method described with the flame cutting machine described for its implementation not only enables the end of the casting strand 1 to be optimized with regard to the content of the casting ladles 10 and the distributor trough 11, but also minimizes the loss due to inaccurate casting piece lengths and, in the case of sequence castings, enables adjustment to a wide variety of changing operating parameters, so that with it the entire casting process is completely manageable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Shearing Machines (AREA)
EP86110343A 1985-08-30 1986-07-26 Procédé d'exploitation d'une installation de coulée continue et machine d'oxycoupage de la billette pour sa mise en oeuvre Expired EP0213389B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86110343T ATE48960T1 (de) 1985-08-30 1986-07-26 Verfahren zum betrieb einer stranggiessanlage und einer strangbrennschneidmaschine zur durchfuehrung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853531041 DE3531041A1 (de) 1985-08-30 1985-08-30 Strangbrennschneidmaschine
DE3531041 1985-08-30

Publications (3)

Publication Number Publication Date
EP0213389A2 true EP0213389A2 (fr) 1987-03-11
EP0213389A3 EP0213389A3 (en) 1987-08-26
EP0213389B1 EP0213389B1 (fr) 1989-12-27

Family

ID=6279775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86110343A Expired EP0213389B1 (fr) 1985-08-30 1986-07-26 Procédé d'exploitation d'une installation de coulée continue et machine d'oxycoupage de la billette pour sa mise en oeuvre

Country Status (4)

Country Link
EP (1) EP0213389B1 (fr)
AT (1) ATE48960T1 (fr)
DE (2) DE3531041A1 (fr)
ES (1) ES2001617A6 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0714717A1 (fr) * 1994-12-03 1996-06-05 HORST K. LOTZ Feuerschutzbaustoffe Installation de coulée continue avec une machine d'oxycoupage qui travaille synchrone avec la coulée
CN112222367A (zh) * 2019-06-30 2021-01-15 宝山钢铁股份有限公司 一种连铸铸坯切割控制系统及其重量自适应切割控制方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105328152B (zh) * 2014-08-15 2018-05-08 中冶宝钢技术服务有限公司 连铸坯缺陷熔除设备用吹扫点火装置及其点火方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT301778B (de) * 1968-07-01 1972-09-25 Westinghouse Electric Corp Einrichtung zur Steuerung einer Stranggußanlage
CH563205A5 (fr) * 1973-08-03 1975-06-30 Concast Ag
EP0004384A1 (fr) * 1978-03-29 1979-10-03 I.P.U. Limited Procédé d'oxycoupage d'une brame d'acier, produite avec une machine de coulée continue et installation pour la mise en oeuvre de ce procédé
DE2928771A1 (de) * 1979-07-17 1981-02-12 Ipu Ltd Verfahren zum brennschneiden von stahlbrammen in stranggiessanlagen und anlage zur durchfuehrung des verfahrens

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT301778B (de) * 1968-07-01 1972-09-25 Westinghouse Electric Corp Einrichtung zur Steuerung einer Stranggußanlage
CH563205A5 (fr) * 1973-08-03 1975-06-30 Concast Ag
EP0004384A1 (fr) * 1978-03-29 1979-10-03 I.P.U. Limited Procédé d'oxycoupage d'une brame d'acier, produite avec une machine de coulée continue et installation pour la mise en oeuvre de ce procédé
DE2928771A1 (de) * 1979-07-17 1981-02-12 Ipu Ltd Verfahren zum brennschneiden von stahlbrammen in stranggiessanlagen und anlage zur durchfuehrung des verfahrens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0714717A1 (fr) * 1994-12-03 1996-06-05 HORST K. LOTZ Feuerschutzbaustoffe Installation de coulée continue avec une machine d'oxycoupage qui travaille synchrone avec la coulée
CN112222367A (zh) * 2019-06-30 2021-01-15 宝山钢铁股份有限公司 一种连铸铸坯切割控制系统及其重量自适应切割控制方法

Also Published As

Publication number Publication date
EP0213389A3 (en) 1987-08-26
ATE48960T1 (de) 1990-01-15
DE3531041A1 (de) 1987-03-05
ES2001617A6 (es) 1988-06-01
DE3667760D1 (de) 1990-02-01
EP0213389B1 (fr) 1989-12-27

Similar Documents

Publication Publication Date Title
CN104117648B (zh) 一种多流多定尺连铸坯在线定尺称重系统
DE69515251T2 (de) Formen von dünnen metallurgischen Produkten zwischen zwei Zylindern
WO2005068109A1 (fr) Procede et dispositif pour determiner la position de l'extremite du cratere liquide dans la barre de coulee lors de la coulee continue de metaux liquides, notamment de materiaux d'acier liquides
DE2923067C2 (de) Temperaturhaltehaube für eine Strangbrennschneidvorrichtung
DE3823258A1 (de) Maschine zur ausbildung einer v-foermigen aussparung und verfahren zur steuerung derselben
DE3423475A1 (de) Verfahren und einrichtung zum stranggiessen von fluessigen metallen, insbesondere von fluessigem stahl
US4343209A (en) Zone heating and shearing system, and method
EP2365893B1 (fr) Procédé de détermination de la position d'un outil
EP0195095B1 (fr) Procédé pour exploiter une installation de coulée continue et machine à découper au chalumeau pour la mise en oeuvre
EP0213389B1 (fr) Procédé d'exploitation d'une installation de coulée continue et machine d'oxycoupage de la billette pour sa mise en oeuvre
EP1849590A1 (fr) Presse
DE2429529C3 (de) Gießanlage
WO2010031410A1 (fr) Machine d'oxycoupage de barre de coulée continue en pièces, avec fonctionnement synchronisé d'un bras avec la barre de coulée
DE69802316T2 (de) Brammen-Stranggiessmaschine mit Vorrichtung zum Auswechseln eines Tauchgiessrohres und Verfahren zum Auswechseln eines Tauchgiessrohres
AT404806B (de) Strangführung für eine stranggiessanlage
DE3049013C2 (fr)
DE3518333A1 (de) Verfahren zum betrieb einer stranggiessanlage sowie brennschneidmaschine zum abtrennen von kontinuierlich vergossenen stranggussstuecken
DE4203337C2 (de) Verfahren zum Stranggießen von Metallen
CN204135306U (zh) 一种多流多定尺连铸坯在线定尺称重系统
EP3794308A1 (fr) Calcul d'une orientation d'au moins un objet et procédé destiné à orienter relativement des galets
EP0548377B1 (fr) Dispositif de mesure pour contrÔler le profil de voies ferrées
DE2437294B1 (de) Verfahren zum Trennen eines Stahlstranges beim Stranggießen
DE3518333C1 (fr)
EP0392043A1 (fr) Machine de coulée avec dispositif de coupage au chalumeau à oxygène
DE68902691T2 (de) Stranggussvorrichtungen.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE DE FR GB

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE DE FR GB

17P Request for examination filed

Effective date: 19880217

17Q First examination report despatched

Effective date: 19881017

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE FR GB

REF Corresponds to:

Ref document number: 48960

Country of ref document: AT

Date of ref document: 19900115

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3667760

Country of ref document: DE

Date of ref document: 19900201

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19900717

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19900719

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19900725

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19900730

Year of fee payment: 5

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19910726

Ref country code: AT

Effective date: 19910726

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19910731

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910924

Year of fee payment: 6

BERE Be: lapsed

Owner name: AUTE G.- FUR AUTOGENE TECHNIK M.B.H.

Effective date: 19910731

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920331

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930401