EP2174728B1 - Hocheffizientes energiesparendes verfahren zum walzen von stahlbändern unmittelbar nach dem stranggiessen - Google Patents

Hocheffizientes energiesparendes verfahren zum walzen von stahlbändern unmittelbar nach dem stranggiessen Download PDF

Info

Publication number
EP2174728B1
EP2174728B1 EP07764162A EP07764162A EP2174728B1 EP 2174728 B1 EP2174728 B1 EP 2174728B1 EP 07764162 A EP07764162 A EP 07764162A EP 07764162 A EP07764162 A EP 07764162A EP 2174728 B1 EP2174728 B1 EP 2174728B1
Authority
EP
European Patent Office
Prior art keywords
rolling
continuous casting
blanks
machine
cast
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
EP07764162A
Other languages
English (en)
French (fr)
Other versions
EP2174728A1 (de
EP2174728A4 (de
Inventor
Yingyao Chen
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.)
Baoshan Iron and Steel Co Ltd
Original Assignee
Baoshan Iron and Steel Co Ltd
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 Baoshan Iron and Steel Co Ltd filed Critical Baoshan Iron and Steel Co Ltd
Publication of EP2174728A1 publication Critical patent/EP2174728A1/de
Publication of EP2174728A4 publication Critical patent/EP2174728A4/de
Application granted granted Critical
Publication of EP2174728B1 publication Critical patent/EP2174728B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/466—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing the product
    • B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0057—Coiling the rolled product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/12—End of product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/12—End of product
    • B21B2273/16—Tail or rear end
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/004—Transverse moving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically

Definitions

  • the present invention relates to a continuous casting process and, more particularly, to an efficient, energy-saving continuous casting-rolling process of strip steels.
  • a continuous casting-rolling process and a continuous casting-rolling apparatus according to the preambles of claim 1 and claim 8 are known from CN 1978080 A .
  • Continuous rolling techniques of strip steels have been developed for more than a half century, comprising techniques such as conventional continuous hot rolling process based on thick blanks and continuous casting-rolling process based on thin blanks.
  • the conventional continuous hot rolling process which comprises heating rough rolling and finish rolling of blanks, is quite developed, and has characteristics such as good adaptability, high flexibility, etc.
  • a variety of products which can meet different needs of customers can be produced by this process.
  • the surface quality of the products is good and the products can provide high-quality materials suitable for cold rolling.
  • the heating capacity is sufficient in this process, the rolling machine can achieve a maximum yield.
  • the continuous cast blanks in the continuous hot rolling process must be recombined offline, and be directed into the heating furnaces in a planned order for heating and rolling, the latent heat of the continuous cast blanks cannot be utilized adequately, so that it causes wasting of fuels for heating.
  • the continuous casting-rolling process based on thin blanks has a most favorable advantage of utilizing latent heat of high temperature continuous hot cast blanks to a maximum limit, so that it saves fuels. Furthermore, the continuous casting-rolling process based on thin blanks, due to elimination of the temperature difference of the blanks and achievement of a constant-speed finish rolling, is particularly favorable for producing extremely thin strip steels and for controlling organizing properties of strip steels by means of ultrafast cooling so as to produce high-strength steels.
  • An object of the present invention is to provide an efficient, energy-saving continuous casting-rolling process of strip steels, so as to solve the following technical problems: cast blanks in the conventional continuous hot rolling process cannot be directly loaded into heating furnaces, the high temperature latent heat of the cast blanks cannot be utilized efficiently so that energy is wasted; and it is necessary to provide a large blank stock which causes waste of land resources and increased costs of blank stock land, factory building and facility.
  • the present invention also solves the following technical problems: the yields of the continuous casting machine and the rolling machine in the continuous casting-rolling process based on thin blanks are not matching, the yield of the rolling machine is wasted, the per-unit cost is high, the range of products is narrow, the hierarchy of products is low, the competitiveness of products is low, the benefit is low; and the process line has a strong rigidity, the production organizing is difficult and the accident dealing is difficult.
  • the present invention also provides a continuous casting-rolling apparatus according to claim 8.
  • the above-said efficient continuous casting-rolling apparatus and process utilizes the latent heat of the cast blanks to a maximum extent, achieves a highest hot loading temperature, minimizes the energy consumption of the process, maximizes the yield of the finish rolling machine and minimizes the fixed cost per ton of steel.
  • the present invention has a short production line and a small floor area, involves a small investment, can satisfy the production of various steel types and dimensions in product mix, can produce products of thin, wide and high tensile types consistently and has a maximum product coverage, a good product surface quality, a high added value and a high economic benefit.
  • the present invention has following advantageous effects:
  • 1- continuous casting machine 2- transfer device, 3- soaking furnace, 4-dephosphorization device, 5- vertical roll, 6- two-roll rolling machine, 7- rough rolling machine, 8- hot coiling case, 9- extra fast cooling zone, 10- fly shears, 11- finish rolling machine (six or seven machines), 12- stream cooling device, 13- coiling machine (two or three machines), 14- rolling line, 15- outer cast strand on one side, 16- inner cast strand on the one side, 17- inner cast strand on the other side, 18- outer cast strand on the other side, 19- unloading device, 20- blank cutting machine, 21, 21'- delivery rollway for cast blanks
  • the process flow is as follows: continuous casting blanks in a two-machine and two-strand manner by using two one-strand perpendicular curved type continuous casting machines 1, wherein two heating furnaces 3 are disposed in an one-by-one staggered arrangement, taking a rolling line 14 as a center line; cutting the two cast strands from the continuous casting machine 1 by a blank cutting machine 20; delivering the cut cast blanks by delivery rollways for cast blanks 21, 21' to loading rollways of the heating furnaces 3; feeding the cast blanks which are on the loading rollways of the heating furnaces 3 into the heating furnaces 3 by pushers; heating the cast blanks by the two heating furnaces 3; merging the two strands of cast blanks into the rolling line 14; dephosphorizing the cast blanks by a dephosphorization device 4; rough rolling the cast blanks by a four-roll reversible rolling machine (rough rolling machine 7) which is provided with front and rear vertical rolls 5, wherein a further dephosphorization device 4 is
  • the number of rolling passes for medium thickness or thin blanks whose thickness is 100-180mm is three, and the number of rolling passes for thick blanks whose thickness is 180-230mum (in this condition, the rough rolling machine is a high power four-roll reversible rolling machine 7 (rough rolling machine)) is five to seven.
  • the yield is 2-3 million ton/year.
  • a further extra fast cooling zone 9 may be disposed before the finish rolling unit.
  • an off line passage and an unloading device 19 for unloading cast blanks may be disposed near the delivery rollways for cast blanks 21, 21' and at extended portions of the loading rollways of the heating furnaces. If the rolling line is shut down for a long time, the continuous cast blanks can be hoisted or pushed out of the rolling line by the unloading device 19 so that the cold blanks can be sold or further processed together.
  • the process flow when compared with figure 1 differs in that: a two-roll reversible or irreversible rolling machine 6 is added into the rough rolling step; only one set of front vertical rolls 5 is provided for the rough rolling machine 7 (four-roll reversible rolling machine); the process is suitable for thick blank whose thickness is 180-250mm, and the number of rolling passes is 3+3 or 1+5. Depending on the effective working length of the roll body, the yield is 2-3 million ton/year. Depending on the product mix process and the performance requirement in product mix, a further extra fast cooling zone 9 may or may not be disposed before the finish rolling unit.
  • the process flow according to a first embodiment of the present invention has following features: continuous casting the blanks in a four-machine and four-strand manner by using two two-strand perpendicular curved type continuous casting machine 1, wherein each continuous casting machine casts blanks in a two-strand manner; after flame cutting the cast strands by the blank cutting machine, merging inner cast strands 16 and 17 on both sides into respective outer cast strands 15 and 18 by transfer devices 2 so that the four strands are merged into two strands.
  • heating furnaces 3 are disposed in a one-by-one staggered arrangement, taking the rolling line 14 as a center line with two heating furnaces 3 on each side.
  • the transfer device 2 By means of the transfer device 2, four cast strands can be directly loaded into the heating furnaces at a same temperature and converged into one rolling line, which cannot be achieved by the continuous casting-rolling process based on thin blanks.
  • the rough rolling machine is a four-roll reversible rolling machine (the rough rolling machine 7) provided with a set of front vertical rolls 5 and a set of rear vertical rolls 5. It is suitable for medium thickness blanks whose thickness is 100-180mm and the number of rolling passes is three, or for thick blank whose thickness is 180-230mm and the number of rolling passes is five or seven. Depending on the effective working length of the roll body, the yield is 3.5-4.5 million ton/year for a continuous casting-rolling line of medium thickness or thick blanks. Depending on the process and the performance requirements in product mix, a further extra fast cooling zone 9 may or may not be disposed before the finish rolling unit.
  • the process flow according to a second embodiment of the present invention when compared with the third embodiment, differs in that: the rough rolling unit comprise a two-roll reversible or irreversible rolling machine 6 which is provided with front vertical rolls 5 and a four-roll reversible rolling machine (rough rolling machine 7) which is provided with a set of front vertical rolls 5; the process is suitable for thick blank whose thickness is 180-250mm, and the number of rolling passes is 3+3 or 1+5; the yield is 3.5-5.0 million ton/year for a continuous casting-rolling line of medium thickness or thick blank. All the others are the same.
  • the process flow according to a third embodiment of the present invention has following features: four heating furnaces 3 are provided in a two-by-two staggered arrangement; the rough rolling unit comprises a four-roll reversible rolling machine which is provided with front and rear vertical rolls; the process is suitable for medium thickness blank whose thickness is 100-180mm and whose number of rolling passes is three, or for thick blank (the rough rolling machine 7 is a high power four-roll reversible rolling machine) whose thickness is 180-230mm and whose number of rolling passes is five or seven.
  • the yield is 3.5-4.5 million ton/year.
  • a further extra fast cooling zone 9 may be disposed before the finish rolling unit.
  • the process flow according to a fourth embodiment of the present invention when compared with the third embodiment, differs in that: a two-roll reversible or irreversible rolling machine 6 provided with front vertical rolls 5 is added into the rough rolling unit; only front vertical rolls 5 are provided for the rough rolling machine 7 (four-roll reversible rolling machine).
  • the process is suitable for thick blank whose thickness is 180-250mm, and the number of rolling passes is 3+3 or 1+5.
  • the yield is 3.5-5.0 million ton/year for a continuous casting-rolling line of medium thickness and thick blank. All the others are the same.
  • the two-machine and four-strand manner means that there are two continuous casting machine each of which casts two cast strands)
  • the molten steel is delivered to a continuous casting machine via an thermal insulating container, a ladle, or a tundish, wherein the casting machine is a perpendicular curved type CONROLL casting machine, the casting speed is ⁇ 3.7m/min, the cast corss-section is 140-150mm ⁇ 900-1650mm; the cast blanks are flame cut by a blank cutting machine, wherein a specified length is controlled by a computer.
  • the casting machine is a perpendicular curved type CONROLL casting machine, the casting speed is ⁇ 3.7m/min, the cast corss-section is 140-150mm ⁇ 900-1650mm; the cast blanks are flame cut by a blank cutting machine, wherein a specified length is controlled by a computer.
  • the blanks are continuous cast in a four-machine (continuous casting machine) and four-strand (cast strand) manner by using two two-strand perpendicular curved type casting machine; the cast blanks are flame cut, wherein the cast cross-section is 100-250mm ⁇ 900-1650mm and the length of the blanks is depend on coiling weight and strip coil outer diameter.
  • the two cast strands from one continuous casting machine can be merged into one strand so that the four strands can be merged into two strands.
  • the four heating furnaces are disposed in an one-by-one or two-by-two staggered arrangement, taking the rolling line as a center line with two heating furnace on each side.
  • the two strands merged from the four strands are connected to loading rollways of heating furnaces on the opposite sides of the rolling line by a transfer device, so that it achieves a desired arrangement of merging four cast strands of continuous cast and rolled thin blanks into one rolling line for being direct loading and continuous rolling at a same temperature, solving the problems of low capacity of the continuous casting machine, mismatching with a capacity of the rolling machine, frequently idling of the rolling machine and being incapable of exerting the yield, which are inherent to and can not be overcome by the continuous casting-rolling process based on thin blank.
  • the comprehensive and perfect design in which a two-stage walking beam mechanism or a long-trip pusher, is used in the fast heating furnaces, a blank buffering-insulating zone which can hold a half furnace of molten steel is left in the rear segment of each furnace, and an extended portion of the loading rollway enables direct unloading of the blanks, successfully solves the severe problem that the continuous casting-rolling process line based on thin blanks has a extremely high rigidity, so that it has a flexibility similar to that of the conventional continuous hot rolling process line, highly facilitates the production organization and fault handling, and helps quick recovering of production and reduction of fault costs.
  • the heating furnaces are cooled by vaporization.
  • the furnaces have a length of 15 ⁇ 30m, a width of 11 ⁇ 17m, a heating capacity of 130 ⁇ 220t/h, a loading temperature of the cast blanks up to 800 ⁇ 900°C , and an discharge temperature of the cast blanks is 1100 ⁇ 1250°C.
  • the cast blanks After the cast blanks are discharged from the furnaces, they are dephosphorized by a dephosphorization device using water under a high pressure of 15 ⁇ 18Mpa with an injection angle oscillation range of 15 degree.
  • a two-roll rolling machine provided with front vertical rolls and a four-roll high power reversible rolling machine provided with front vertical rolls or provided with both of front and rear vertical rolls are used, wherein a further dephosphorization device is disposed at the inlet of the four-roll reversible rolling machine.
  • the diameter of the vertical rolls is ⁇ 1000 ⁇ 1100mm
  • the roll body length is 650mm
  • the maximum side compression amount at a time of the vertical roll is up to 80mm
  • the maximum rolling pressure is up to 7000KN
  • the adjustment of the roll gap is achieved fully hydraulically
  • the power of the main drive is 2 ⁇ 1100KW.
  • the diameter of working rolls is ⁇ 1100 ⁇ 1200mm
  • the roll body length of the working rolls is 1780mm
  • the diameter of supporting rolls is ⁇ 1300 ⁇ 1450mm
  • the roll body length of the supporting rolls is 1750mm
  • the maximum rolling pressure is 45000kN
  • the maximum speed of the working roll is up to 5.5m/s
  • the main drive power is 2 ⁇ 7500KW
  • the main drive speed is 0 ⁇ 45/90rpm.
  • dephosphorization devices are respectively disposed at the outlet and inlet of the rough rolling machine, with a dephosphorization pressure of 15 ⁇ 18Mpa and an injection angle oscillation range of 15 degree.
  • the hot coiling case is of a coreless displacement type, in other words, a double-station coreless coiling type, wherein the maximum coiling speed is 5.5mps, the coiling thickness of the hot coiling case is 20 ⁇ 40mm, the width is 800 ⁇ 1650mm, the coiling temperature is 900 ⁇ 1100°C, the maximum coiling weight is 28t, the strip coil outer diameter is 1400 ⁇ 2200mm, and the maximum decoiling speed is 1.5mps.
  • the hot coiling case 8 comprises a guiding roll 81, bending rolls 82, a forming roll 83, coiling supporting rolls 84A, 84B, a decoiling arm 89, a shovel head 91, decoiling supporting rolls 85A, 85B, a delivery roll 88 for the hot coiling case, a retention pin 90, a positioning roll 86 and pinch rolls 87, in which the guiding roll 81, the bending rolls 82, the forming roll 83 and the coiling supporting rolls 84A, 84B form a coiling station 94; the decoiling arm 89, the shovel head 91, the decoiling supporting rolls 85A, 85B, the delivery roll 88 for the hot coiling case, the retention pin 90, the positioning roll 86 and the pinch rolls 87 form a decoiling and rolling station 93.
  • the inlet guiding roll 81 is raised to a certain position, along which intermediate blanks delivered from the delivery rollway 80 of the rough rolling unit are directed into the bending rolls 82 by which the roll gap is previously set according to the thickness of the intermediate blanks.
  • the forming roll 83 is raised automatically to a coiling position, the coiling supporting roll 84A remains at an initial position, and the coiling supporting roll 84B is raised to a coiling position.
  • the intermediate blanks are caused to have a certain plastic bending deformation between the bending rolls 82, and the heads of the intermediate blanks are caused to produce a certain resilient restoration under an elastic restoring moment when leaving the bending rolls 82.
  • the heads of intermediate blanks hit the forming roll 83 so that the strip steels are further bent and the first turn of coiling is accomplished.
  • the intermediate blanks fall onto the coiling supporting roll 84A, the roll gap between the bending rolls 82 increases with the continuous increment of the outer diameter of the intermediate blank coil, and the coiling supporting roll 84B is lowered with the continuous increment of the outer diameter of the intermediate blank coil, so that the final coil is accomplished.
  • a length of the intermediate blanks is left in the tail portion of the intermediate blank coil for contacting with the shovel head 91 of the decoiling arm 89 when being decoiled.
  • the coiling supporting roll 84B is lowered to a certain position beneath the rolling line, so as to prepare for the subsequent decoiling and delivering of the coil to the decoiling supporting rolls 85, and then, the intermediate blanks are completely disengaged from the bending roller 82 and the whole coiling process is finished.
  • the decoiling arm 89 When preparing for decoiling, the decoiling arm 89 is lowered to a certain position, the shovel head 91 contacts with the tail portion of the intermediate blank coil which is preset previously, and presses the tail portion of the intermediate blank coil so as to deploy the same and prepare for decoiling. During the decoiling stage, the tail portion of the intermediate blank coil at coiling becomes the head at decoiling.
  • the intermediate blank coil is provided with a forward-moving force by the coiling supporting roll 84 contacting therewith.
  • the head of the intermediate blank coil successively passes the decoiling supporting rolls 85, the delivery rolls 88 for the hot coiling case 8 which serve as a support during decoiling of the intermediate blank coil, and the pinch rolls 87 which straighten the intermediate blanks and provide a forward-moving force for the intermediate blanks.
  • the head of the intermediate blank coil leaves the pinch rolls 87, they enter into the delivery rollway 92 before the fly shears 10.
  • the head of the intermediate blank coil is cut by the fly shears 10 and dephosphorized, it enter into the first finish rolling machine of the finish rolling unit 11.
  • the decoiling arm 89 can be raised after the head is cut by the fly shears 10.
  • the intermediate blank coil is ready to be directly moved from the coiling supporting rolls 84 to the decoiling supporting rolls 85.
  • the decoiling supporting rolls 85 are located at a lower position, the coiling supporting roll 84A are raised to a position above the rolling line, and the coiling supporting roll 84B are lowered to a position under the rolling line.
  • the intermediate blank coil is directly moved from the coiling supporting rolls 84 to the decoiling supporting rolls 85.
  • the decoiling supporting rolls 85 When the intermediate blank coil is located on the decoiling supporting rolls 85, the decoiling supporting rolls 85 are raised to a rolling line position, while the coiling supporting roll 84A is lowered to the coiling position and the coiling supporting roll 84B is raised to the coiling position, so that the coiling supporting rolls 84 are located at a to-be-coiled position so as to wait for the next strip steel. Therefore, while one intermediate blank coil is decoiled at the decoiling and rolling station 93, the next intermediate blank coil is ready for being coiled at the coiling station 94.
  • the positioning roll 86 waits for the intermediate blank coil at an initial position. When the positioning roll 86 contacts with the intermediate blanks, it goes forward to a predefined position according to a preset value and contacts with the intermediate blanks at the same time, so as to fixe the coil.
  • the retention pin 90 When the decoiling process is progressed to a condition that there are 2-3 turns left in the intermediate blank coil, the retention pin 90 is inserted into the core of the intermediate blank coil, so as to prevent the intermediate blank coil from ply-rolling.
  • the intermediate blank coil When the decoiling process is progressed to a condition that there is 1 turn left in the intermediate blank coil, the intermediate blank coil is smoothly deployed when being closely against the retention pin 90.
  • the retention pin 90 returns to the initial position. Thus, the whole decoiling process is finished.
  • the decoiling and rolling station 93 is in a condition waiting for decoiling the next intermediate blank coil.
  • the next intermediate blank coil can be coiled at the coiling station 94 at the same time. Since the coiling station 94 and the decoiling and rolling station 93 can work at the same time, which helps to retrieving the time needed for coiling, so that it solves the technical problem that the hot coiling case is an obstacle limiting the yield of the rolling machine, effectively overcomes the significant defect that the core temperature is low and the pure rolling time is prolonged which affects the yield, and achieves all the advantages of the hot coiling case.
  • the heads and ends of the blanks are cut by rotatable drum fly shears 10.
  • the fly shears 10 has a maximum shearing section of 50 ⁇ 1650mm, a maximum shearing force of 9600KN, a shearing speed of 0.35 ⁇ 1.5mps, main drive power of 980KW, and a main drive speed of 0 ⁇ 680rpm.
  • the blanks are further dephosphorized by a dephosphorization device for finish rolling.
  • the dephosphorization device for finish rolling comprises two sets of manifolds, wherein a pressure is 15 ⁇ 20Mpa and an injection angle is 15°.
  • a forceful cooling zone is provided before the finish rolling unit of a length of 5m, which adopts a cooling manner of water curtains with a maximum amount of cooling water of 600 m 3 ph, which is suitable for rolling of ferrite.
  • a set of vertical rolls are provided before the first finish rolling machine of the finish rolling unit.
  • the finish rolling unit comprises 6 or 7 four-roll rolling machines.
  • the rolling machines F1-F7 are CVC rolling machines, wherein a roll play is ⁇ 150mm, a bending force is +1200KN.
  • F1-F3 are electric AGCs and F4-F7 are hydraulic AGCs.
  • the bearings for the working rolls are four columns of tapered roller bearings and the bearings for the supporting rolls are dynamical-static pressure oil film bearings.
  • the diameter of the working rolls of F1-F2 is ⁇ 720 ⁇ 820mm
  • the diameter of the working rolls of F3-F7 is ⁇ 650 ⁇ 750mm
  • the roll body length of the working rolls is 1780mm.
  • the diameter of the supporting rolls of F1-F2 is ⁇ 1300 ⁇ 1450mm
  • the diameter of the supporting rolls of F3-F7 is ⁇ 1270 ⁇ 1400mm
  • the roll body length of the supporting rolls is 1750mm.
  • the maximum rolling force of F1-F3 is 35000KN and the maximum rolling force of F4-F7 is 30000KN.
  • the main motors are AC frequency conversion motors, the power the motor of F1-F3 being 6500KW and the power of the motor of F4-F7 is 5500KW.
  • the maximum rolling speed is 12mps.
  • the upper and lower rolls of F1-F7 are rolls with lubricant so as to increase the surface quality of the strip steels.
  • the inlet temperature of the finish rolling unit is 900 ⁇ 1080°C
  • the outlet temperature of the finish rolling unit is 800 ⁇ 900°C
  • the outlets of F3-F7 are dedusted by a wet dedusting so as to guarantee a good environmental quality.
  • Extra fast cooling zones are provided before and after the stream cooling zone.
  • the total length of the stream cooling zone is 100m, wherein the length of a common cooling zone is 50m, the length of a forceful cooling zone is 20m and the rest is an air cooling zone.
  • the water amount of the stream cooling is 8400m 3 ph and the water amount of the lateral injection is 180m 3 ph.
  • the water pressure of the stream cooling is 0.03 ⁇ 0.05Mpa and the water pressure of the lateral injection is 1.0Mpa.
  • the water temperature for both is ⁇ 40°C.
  • a water tank is provided near the machine, so as to guarantee a stable pressure.
  • the coiling temperature is controlled by CTC module.
  • the cooling rate of the extra fast cooling is more than 80°C/s, with a water pressure and a water amount of at least twice those of the stream cooling.
  • the number of the coiling machines can be selected as two or three as required.
  • the coiling machine has a pedal controller and a coiling capacity which, for carbon steel, X65 or X70 with a specification of 1.0 ⁇ 12.7 ⁇ 1650mm, has an inner diameter of the steel coil of 762mm, a maximum outer diameter of the steel coil of 2000mm and a maximum coiling weight of 29t.
  • the diameters of the upper and lower rolls of the pinch rolls are 920/460mm, the roll body length is 1780mm, and the motor power is 150/300KW and the rotational speed is 525/900rpm.
  • the expanded inner diameter of the coiling reel is 762mm, expanded in two stages, and the motor power is 370KW and the motor speed is 340/1080rpm.
  • the number of the coiling assisted rolls is three, with a roll diameter of 350mmand a roll body length of 1780mm, and the motor power is 37/74KW, the rotational speed is 570/1000rpm,with the gap adjustment being controlled by a servo valve.
  • a guiding plate at the coiling inlet is of a hydraulic servo type, with an opening extent of 500 ⁇ 1880mm and under position and pressure control.
  • the present invention by optimizing the arrangement of the rolling line apparatus, utilizes the latent heat of the continuous cast blank to a maximum extent, achieves a highest hot loading temperature, minimizes the energy consumption of the process, maximizes the yield of the finish rolling machine and minimizes the fixed cost per ton of steel.
  • the present invention has a short production line and a small floor area, involves a small investment, can satisfy the production of various steel types and dimensions in product mix, can produce products of thin, wide and high-strength types consistently and has a maximum product coverage, a good product surface quality, a high added value and a high economic benefit.
  • the present invention When compared with the continuous casting-rolling process based on thin blanks, the present invention has a relative larger superiority. In terms of energy saving and production of thin, fine-grain and high-strength steel, the present invention also has a significant superiority over the conventional rolling machines.

Claims (12)

  1. Ein effizientes, energiesparendes Strangguss-Walzverfahren für Stahlbänder, das folgende Schritte umfasst: Stranggießen von Rohlingen, Schneiden, Beförderung der gegossenen Rohlinge an Wärmeöfen (3) über Walzwege (21, 21'), Erhitzen der gegossenen Rohlinge, Entphosphorung der gegossenen Rohlinge, Vorwalzen, Schneiden der Köpfe und Enden, Entphosphorung zum Fertigwalzen, Fertigwalzen, Abkühlen und Aufrollen, dadurch gekennzeichnet, dass der Stranggieß-Schritt mit vier gegossenen Strängen (15, 16, 17, 18) und mit vier Wärmeöfen (3) zum Erhitzen der gegossenen Rohlinge versehen ist, wobei die vier Wärmeöfen (3) in einer Eins-zu-Eins-versetzten Anordnung oder einer Zwei-zu-Zwei-versetzten Anordnung angeordnet sind, wobei die Walzlinie (14) als Mittellinie genommen wird.
  2. Das effiziente, energiesparende Strangguss-Walzverfahren für Stahlbänder gemäß Anspruch 1, worin weiter wahlweise ein reversibles oder irreversibles Zweiwalzen-Walzwerk (6), ausgestattet mit vertikalen Vorderwalzen (5), vor einem Vorwalzwerk (7) angeordnet ist.
  3. Das effiziente, energiesparende Strangguss-Walzverfahren für Stahlbänder gemäß Anspruch 1, worin weiter eine Abladevorrichtung (19) zum Abladen gegossener Rohlinge nahe Auslaufwalzwegen (21, 21') für gegossene Rohlinge oder nahe Abfuhrrollgängen der Wärmeöfen bereitgestellt ist.
  4. Das effiziente, energiesparende Strangguss-Walzverfahren für Stahlbänder gemäß Anspruch 1, worin im Kühlungsschritt nach dem Fertigwalzschritt Strömungskühlung verwendet wird.
  5. Das effiziente, energiesparende Strangguss-Walzverfahren für Stahlbänder gemäß Anspruch 1, worin ein extraschneller Kühlungsabschnitt (9) nach dem Heißaufroll-Gehäuse (8) und/oder nach dem Fertigwalzschritt und/oder vor dem Aufrollschritt bereitgestellt ist, dessen Kühlungsgeschwindigkeit mehr als 80°C/s beträgt.
  6. Das effiziente, energiesparende Strangguss-Walzverfahren für Stahlbänder gemäß einem beliebigen der Ansprüche 1 bis 5, worin vier gegossene Stränge (15, 16, 17, 18) den gegenüberliegenden Seiten der Walzlinie (14) über Auslaufwalzwege (21, 21') für gegossene Stränge zugeführt werden und eine Transfervorrichtung (2) zur Überführung gegossener Rohlinge zwischen den Auslaufwalzwegen (21, 21') für gegossene Rohlinge auf einer selben Seite der Walzlinie (14) bereitgestellt ist.
  7. Das effiziente, energiesparende Strangguss-Walzverfahren für Stahlbänder gemäß einem beliebigen der Ansprüche 1 bis 5, worin die Anzahl der Walzdurchgänge im Vorwalzschritt drei, fünf oder sieben ist.
  8. Eine Strangguss-Walzvorrichtung für Stahlbänder, die die folgenden Einheiten umfasst, operativ nacheinander entlang einer Walzlinie (14) davor und darüber angeordnet: eine Stranggussmaschine (1), eine Schneidemaschine (20), Auslaufwalzwege (21, 21'), Wärmeöfen (3), eine Entphosphorungsvorrichtung (4), eine Vorwalzmaschine (7), fliegende Scheren (10), eine zweite Entphosphorungsvorrichtung (4), eine Fertigwalzmaschine (11), eine Strömungskühlungsvorrichtung (12) und eine Aufrollvorrichtung (13), dadurch gekennzeichnet, dass:
    die Stranggussmaschine (1) vier Stränge (15, 16, 17, 18) gegossener Rohlinge liefert; die Wärmeöfen (3) vier Wärmeöfen umfassen, die in einer Eins-zu-Eins-versetzten Anordnung angeordnet sind, wobei die Walzlinie (14) als Mittellinie genommen wird; eine Transfervorrichtung (2) jeweils zwischen zwei Strängen bereitgestellt ist, die jeweils zwei Stränge gegossener Rohlinge von der Transfervorrichtung (2) zu einem Strang gegossener Rohlinge verschmolzen werden und jeder verschmolzene Strang gegossener Rohlinge entsprechend auf jeder Seite der Walzlinie (14) in die Wärmeöfen eintritt, um erhitzt zu werden.
  9. Die Strangguss-Walzvorrichtung für Stahlbänder gemäß Anspruch 8, worin weiter ein Zweiwalzen-Walzwerk (6), ausgestattet mit vertikalen Vorderwalzen (5), vor dem Vorwalzwerk (7) angeordnet ist.
  10. Die Strangguss-Walzvorrichtung für Stahlbänder gemäß Anspruch 8, worin eine extraschnelle Abkühlungszone (9) vor den fliegenden Scheren (10) oder vor der Strömungskühlungsvorrichtung (12) oder vor der Aufrollmaschine (13) bereitgestellt ist.
  11. Die Strangguss-Walzvorrichtung für Stahlbänder gemäß Anspruch 8, worin ein Heißaufroll-Gehäuse (8) hinter der Vorwalzmaschine (7) bereitgestellt ist.
  12. Die Strangguss-Walzvorrichtung für Stahlbänder gemäß Anspruch 8 oder 9, worin weiter eine Abladevorrichtung zum Abladen gegossener Rohlinge nahe Auslaufwalzwegen für gegossene Rohlinge oder nahe Abfuhrrollgängen der Wärmeöfen bereitgestellt ist.
EP07764162A 2007-07-04 2007-07-04 Hocheffizientes energiesparendes verfahren zum walzen von stahlbändern unmittelbar nach dem stranggiessen Active EP2174728B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2007/070233 WO2009003342A1 (fr) 2007-07-04 2007-07-04 Procédé à économie d'énergie et très efficace pour couler-laminer en continu des bandes d'acier

Publications (3)

Publication Number Publication Date
EP2174728A1 EP2174728A1 (de) 2010-04-14
EP2174728A4 EP2174728A4 (de) 2010-09-08
EP2174728B1 true EP2174728B1 (de) 2011-08-31

Family

ID=40225704

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07764162A Active EP2174728B1 (de) 2007-07-04 2007-07-04 Hocheffizientes energiesparendes verfahren zum walzen von stahlbändern unmittelbar nach dem stranggiessen

Country Status (4)

Country Link
EP (1) EP2174728B1 (de)
JP (1) JP2010531734A (de)
AT (1) ATE522289T1 (de)
WO (1) WO2009003342A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4049768A1 (de) * 2021-02-25 2022-08-31 Primetals Technologies Austria GmbH Giess-walz-verbundanlage und verfahren zur herstellung von warmband mit einer enddicke kleiner als 1,2 mm auf der giess-walz-verbundanlage

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102310078B (zh) * 2010-05-28 2013-08-28 罗光政 利用钢水余热生产型材棒线材的连铸连轧方法
CN101966568B (zh) * 2010-11-26 2012-04-11 中冶赛迪工程技术股份有限公司 一种铸坯横移机构
CN102161090B (zh) * 2010-12-23 2012-11-07 中国科学院金属研究所 一种提高厚大断面铸坯自补缩能力的方法
CN104624676B (zh) * 2013-11-15 2017-02-01 上海梅山钢铁股份有限公司 一种热轧除鳞设备的节能配置方法
WO2015107483A1 (en) * 2014-01-17 2015-07-23 Danieli & C. Officine Meccaniche S.P.A. Plant and method for the production of metal products
CN104438326B (zh) * 2014-10-17 2017-04-12 武汉钢铁(集团)公司 薄板坯连铸连轧中高碳钢的轧制工艺
CN106077091A (zh) * 2016-06-21 2016-11-09 中冶华天工程技术有限公司 低能耗连铸热坯直接轧制型钢棒线材生产方法
CN108435794B (zh) * 2018-04-10 2019-09-24 中冶赛迪工程技术股份有限公司 一种连铸连轧的工艺方法
CN108672493A (zh) * 2018-04-11 2018-10-19 新疆八钢铁股份有限公司 一种热拔式轧制方法
DE102019207459A1 (de) * 2018-05-23 2019-11-28 Sms Group Gmbh Gieß-Walzanlage für den Batch- und Endlosbetrieb
CN109142144B (zh) * 2018-07-20 2020-12-22 中冶连铸技术工程有限责任公司 铸坯均质化程度分析方法
CN110032760B (zh) * 2019-03-07 2022-06-07 福建三钢闽光股份有限公司 基于轧线信息共享分析系统优化中板生产组织方法
CN110090861B (zh) * 2019-05-21 2020-02-07 东北大学 一种简单断面型钢的无头轧制方法
CN110355221B (zh) * 2019-06-06 2020-09-18 山东钢铁股份有限公司 一种热轧带钢生产线精除鳞夹送辊调整系统及方法
CN111672915B (zh) * 2020-05-21 2022-03-15 武汉定飞科技有限公司 一种可逆冷轧机供液泵节能运行的方法
CN115323160B (zh) * 2022-08-30 2023-07-28 宝武集团鄂城钢铁有限公司 提高连铸坯热装比的方法及系统

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3241745C2 (de) * 1982-11-11 1985-08-08 Mannesmann AG, 4000 Düsseldorf Verfahren zum Herstellen von warmgewalztem Stahlband aus stranggegossenem Vormaterial in unmittelbar aufeinanderfolgenden Arbeitsschritten
JPH0747404A (ja) * 1993-08-09 1995-02-21 Ishikawajima Harima Heavy Ind Co Ltd 圧延方法及びその装置
JP3319075B2 (ja) * 1993-09-02 2002-08-26 石川島播磨重工業株式会社 薄スラブの熱間圧延設備
US5467519A (en) * 1994-01-10 1995-11-21 Tippins Incorporated Intermediate thickness twin slab caster and inline hot strip and plate line
JPH1133601A (ja) * 1997-07-16 1999-02-09 Ishikawajima Harima Heavy Ind Co Ltd 圧延設備
DE19953252A1 (de) * 1999-11-04 2001-05-10 Sms Demag Ag Verfahren zur Oberflächenbearbeitung eines kontinuierlich gegossenen Stahlproduktes und Einrichtung hierzu
JP3503581B2 (ja) * 2000-07-27 2004-03-08 住友金属工業株式会社 連続鋳造熱鋳片の熱間圧延用加熱炉への装入方法。
JP2002066602A (ja) * 2000-08-30 2002-03-05 Nkk Corp 熱間加工設備および熱間加工方法
JP3418739B2 (ja) * 2000-09-29 2003-06-23 川崎重工業株式会社 連続鋳造熱延設備および連続鋳造熱延方法
JP2002219501A (ja) * 2001-01-26 2002-08-06 Nkk Corp 熱間鋼帯の製造方法及びその製造設備
CN1189256C (zh) * 2002-09-19 2005-02-16 鞍钢集团新钢铁有限责任公司 中薄板坯连铸连轧板卷的生产方法
DE602004026200D1 (de) * 2004-10-28 2010-05-06 Giovanni Arvedi Verfahren und Produktionsanlage zur Herstellung von heissen ultradünnen Stahlbändern mit zwei Anlagen zum stranggiessen für eine einzelne kontinuierliche Waltzstrasse
CN1978080A (zh) * 2005-11-29 2007-06-13 中冶赛迪工程技术股份有限公司 一种带钢生产工艺－esp
CN100560240C (zh) * 2006-01-20 2009-11-18 上海梅山钢铁股份有限公司 一种高效连铸连轧工艺

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4049768A1 (de) * 2021-02-25 2022-08-31 Primetals Technologies Austria GmbH Giess-walz-verbundanlage und verfahren zur herstellung von warmband mit einer enddicke kleiner als 1,2 mm auf der giess-walz-verbundanlage
WO2022179890A1 (de) * 2021-02-25 2022-09-01 Primetals Technologies Austria GmbH Giess-walz-verbundanlage und verfahren zur herstellung von warmband mit einer enddicke <1,2 mm auf der giess-walz-verbundanlage

Also Published As

Publication number Publication date
WO2009003342A1 (fr) 2009-01-08
JP2010531734A (ja) 2010-09-30
EP2174728A1 (de) 2010-04-14
ATE522289T1 (de) 2011-09-15
EP2174728A4 (de) 2010-09-08

Similar Documents

Publication Publication Date Title
EP2174728B1 (de) Hocheffizientes energiesparendes verfahren zum walzen von stahlbändern unmittelbar nach dem stranggiessen
CN100438997C (zh) 紧凑型中宽带钢生产工艺
US5414923A (en) Method and apparatus for intermediate thickness slab caster and inline hot strip and plate line
EP3175933B1 (de) Verfahren zum walzen in einer anlage zur herstellung von flachgewalzten produkten
JP2993735B2 (ja) 偏平な熱間圧延薄鋼ストリップの製造装置およびその製造方法
CN100560240C (zh) 一种高效连铸连轧工艺
CN101391264B (zh) 一种薄中板连铸连轧生产的工艺方法
CN103480647B (zh) 一种无加热低温直接轧制小方坯生产钢筋的装置及其生产方法
CN1189256C (zh) 中薄板坯连铸连轧板卷的生产方法
US5467519A (en) Intermediate thickness twin slab caster and inline hot strip and plate line
JP2012213807A (ja) 効率的且省エネルギーな帯鋼連続鋳造及び連続圧延プロセス
CN109433826B (zh) 中薄板坯连铸连轧机组及其生产方法
EP0726101A1 (de) Mitteldicken- und Mehrofen-Produktionslinie mit Brammenlagerung und -zuordnung
US6511557B2 (en) Process and relative production line for the direct manufacture of finished pressed or deep drawn pieces from ultrathin hot rolled strip cast and rolled in-line
WO1993023182A9 (en) Method and apparatus for intermediate thickness slab caster and inline hot strip and plate line
CN112337968A (zh) 一种多功能热轧板带生产机组及其生产方法
EP0665296A1 (de) Verfahren und Anlage zum Herstellen warmgewalzter Stahlbänder
CN110947763A (zh) 一种稀有和难熔金属板带材的轧机生产线及其生产方法
CN211757605U (zh) 一种稀有和难熔金属板带材的轧机生产线
JPS598442B2 (ja) ホツトストリツプ圧延設備列
RU2491140C2 (ru) Способ горячей прокатки полос и комбинированный полунепрерывный стан для его осуществления
CN114871272A (zh) 一种铜板带热轧车间的布置方法及热轧工艺
CN117102236A (zh) 一种中厚板生产线及其生产方法
CN116887930A (zh) 铸轧复合设备以及用于在所述铸轧复合设备上制造具有＜1.2mm的最终厚度的热轧带的方法
CN117583385A (zh) 用于钛板、钛带轧制的双功能生产线及轧制方法

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

17P Request for examination filed

Effective date: 20100204

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

A4 Supplementary search report drawn up and despatched

Effective date: 20100809

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: B21B 1/46 20060101AFI20110214BHEP

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602007016802

Country of ref document: DE

Effective date: 20111103

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20110831

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20110831

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

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111231

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

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

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111201

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

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

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

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

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

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120102

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

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

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

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

Effective date: 20120601

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602007016802

Country of ref document: DE

Effective date: 20120601

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

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120731

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20120704

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130329

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

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120731

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120731

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111211

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120731

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120704

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111130

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

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120704

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

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

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

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120704

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

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070704

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602007016802

Country of ref document: DE

Representative=s name: SCHIEBER - FARAGO PATENTANWAELTE, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 602007016802

Country of ref document: DE

Representative=s name: FARAGO PATENTANWALTSGESELLSCHAFT MBH, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602007016802

Country of ref document: DE

Representative=s name: SCHIEBER - FARAGO PATENTANWAELTE, DE

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

Ref country code: IT

Payment date: 20230711

Year of fee payment: 17

Ref country code: AT

Payment date: 20230710

Year of fee payment: 17

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

Ref country code: DE

Payment date: 20230703

Year of fee payment: 17