WO2014174099A1 - Procédé et cage de laminage à froid d'un produit - Google Patents

Procédé et cage de laminage à froid d'un produit Download PDF

Info

Publication number
WO2014174099A1
WO2014174099A1 PCT/EP2014/058503 EP2014058503W WO2014174099A1 WO 2014174099 A1 WO2014174099 A1 WO 2014174099A1 EP 2014058503 W EP2014058503 W EP 2014058503W WO 2014174099 A1 WO2014174099 A1 WO 2014174099A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolling
roll
stand
drive
work roll
Prior art date
Application number
PCT/EP2014/058503
Other languages
German (de)
English (en)
Inventor
Michael Breuer
Kerstin SPILL
Markus Fischer
Original Assignee
Sms Siemag Ag
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 Sms Siemag Ag filed Critical Sms Siemag Ag
Priority to US14/786,210 priority Critical patent/US20160059283A1/en
Priority to KR1020157031474A priority patent/KR101737945B1/ko
Priority to JP2016509495A priority patent/JP2016531754A/ja
Priority to EP14719338.7A priority patent/EP2988884B1/fr
Priority to CN201480023734.XA priority patent/CN105142810A/zh
Publication of WO2014174099A1 publication Critical patent/WO2014174099A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/001—Convertible or tiltable stands, e.g. from duo to universal stands, from horizontal to vertical stands
    • 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
    • B21B1/22—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 plates, strips, bands or sheets of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/06—Drives for metal-rolling mills, e.g. hydraulic drives for non-continuously-operating mills or for single stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/14—Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • 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
    • B21B45/0239—Lubricating
    • B21B45/0245—Lubricating devices
    • B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
    • 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
    • B21B1/22—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 plates, strips, bands or sheets of indefinite length
    • B21B2001/221—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 plates, strips, bands or sheets of indefinite length by cold-rolling
    • 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
    • B21B1/22—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 plates, strips, bands or sheets of indefinite length
    • B21B2001/228—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 plates, strips, bands or sheets of indefinite length skin pass rolling or temper rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/025—Quarto, four-high stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/028—Sixto, six-high stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/12—Rolling load or rolling pressure; roll force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/14—Reduction rate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2269/00—Roll bending or shifting
    • B21B2269/02—Roll bending; vertical bending of rolls
    • B21B2269/04—Work roll bending
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2269/00—Roll bending or shifting
    • B21B2269/02—Roll bending; vertical bending of rolls
    • B21B2269/06—Intermediate roll bending

Definitions

  • the invention relates to a method for operating a roll stand for cold rolling of rolling stock.
  • the rolling stand comprises at least an upper and a lower support roll and an upper and a lower work roll, which span a roll gap.
  • a lower and an upper intermediate roll may also be provided between the work rolls and the support rolls.
  • the invention also relates to said roll stand.
  • Roll stands and methods for their operation are basically known in the prior art, for example from EP 1 318 879 B1, DE 4417274 C2, EP 1 420 898 or DE 4417274.
  • Reduziergerüste have the task to reduce per stitch 30 to 80% of the thickness of the rolling stock. At these high degrees of deformation occur high rolling forces and rolling moments. Therefore, a roller cooling with high efficiency is necessary. Here are up to 10,000 l / min. per mill converted to cooling amount.
  • the work rolls in the reducing stand are of relatively smooth surface without special texturing.
  • the upper backup roller is on the upper intermediate roll and this in turn on the upper work roll on. If the intermediate roll is missing, as in the four-roll stand, then the upper support roll rests directly on the upper work roll.
  • the rolling forces are in the range of 10 to 20 MN.
  • the rolling moments are in a range of 100 up to 200 kNm.
  • a special thickness control is used, which can be operated both in the position control mode, as well as rolling force control mode.
  • the essential actuator of the thickness control during reduction are almost exclusively the adjusting cylinders of the support rollers and only in peripheral areas of the strip tension.
  • Reducing stands can be in six-roller or four-roller design, d. H. be formed with six or four rollers.
  • Reduzier STEM typically both work rolls are rotated to transmit a rolling torque on both work rolls.
  • Such reducers are known both for reducing iron metal and for reducing non-ferrous metal.
  • the only noteworthy difference between the operation of ferrous metal and non-ferrous metal reducers is the use of the appropriate cooling lubricant;
  • the cooling lubricant is a (number word) means with the two functions cooling and lubricating.
  • rolling oil is typically used as the cooling lubricant.
  • the rolling force and the rolling moment are in In comparison to a reduction operation very low, specifically, the rolling forces during the temper rolling range in a range of 1 to 4 MN.
  • the rolling torques are typically in a range of 0 to 20 kNm.
  • the applied amount of tempering agent is about 20 l / min. per side of the rolling stock at a significantly lower level compared to the reduction operation.
  • the main task of the tempering agent is essentially the cleaning of the rolling stock or the rolls. During the temper rolling operation, typically neither of the two work rolls is driven; instead, only the lower support roller is driven, thus transferring a rolling moment to it.
  • the rolling force can be applied either via the adjusting cylinder of the upper support roller; this presupposes, however, that the upper support roller rests either on the upper work roll or, if present, on the upper intermediate roll.
  • the upper backup roll may also be lifted from the upper work roll or, if present, from the upper intermediate roll. Then, the application of the rolling force in the skin pass through a suitable employment of the upper bending cylinder, which act either on the upper work roll or - if present - on the upper intermediate roll.
  • Reduziergerüsten usually two rollers, usually the work rolls driven to transmit the required rolling torque as evenly as possible in the nip. Smallest differences in diameter between the work rolls lead to moment differences between the rolls, which, however, do not have a detrimental effect on the rolling result, because the high decreases compensation in the rolling, eg by shearing, takes place.
  • the present invention seeks to further develop a known method and a known rolling stand for cold rolling of rolling material operable in a reducing or a temper rolling operation, that the quality of the rolling stock and the stability of the rolling conditions are improved in the temper rolling.
  • This object is achieved by the method claimed in claim 1.
  • This method is characterized in that the upper or the lower work roll is uncoupled from its drive device in the temper rolling operation. Neither the upper nor the lower support roller are driven in the temper rolling operation according to the invention.
  • the claimed method provides that the rolling stand can be operated as an alternative to the temper rolling in a mode of operation reducing operation for significantly reducing the thickness of the rolling stock.
  • a composite scaffold which allows ironing of ferrous and non-ferrous metals and reducing iron metal and non-ferrous metal on a scaffold, offers significant advantages, especially in financial terms compared to two separate scaffolds, ie. H. a Reduziergerüst and a separate skin pass mill.
  • the claimed drive concept Smallest diameter differences in the two work rolls, as they are z. B. by grinding errors or different thermal expansion and led to speed differences in the two work rolls are advantageously avoided by the claimed drive concept, in which the two work rolls are rotationally coupled to each other in the temper rolling on rolling stock together. Also moments-trim, chatter, surface defects and / or unstable rolling conditions, as they typically arise in a positive coupling of both work rolls to the comb-rolling gear, are advantageously avoided by the claimed drive of only one of the two work rolls. Overall, the quality of the rolling stock is improved and the rolling conditions stabilized by the claimed drive concept in the temper rolling. Thus, the claimed method is particularly suitable for casting non-ferrous metal strip.
  • a first embodiment of the method according to the invention is in the tempering the upper support roller of the upper work roll or - if present - lifted from the upper intermediate roll and there is the application and adjustment of the rolling force by the action of the upper bending cylinder on the upper work roll or - if present - on the upper intermediate roll.
  • the lifting of the upper backup roll from the upper work roll or from the upper intermediate roll provided according to the first embodiment avoids the described problem of excessive rolling force when the backup roll rests.
  • any side effects of lifting the backup roll such as a possible change in the nip profile are remedied by the application and adjustment of the rolling force by the action of the upper bending cylinder on the upper work roll or, if present, on the upper intermediate roll, as claimed.
  • the upper support roller may also rest on the upper work roll or on the upper intermediate roll; then, however, the said disadvantages persist in the fine adjustment of the tempering forces.
  • the method according to the invention provides that in the temper rolling operation the thickness of the rolling stock is regulated with the aid of a skin pass control loop to a predetermined constant nominal thickness, e.g. by suitable variation of the strip tension of the rolling stock or the rolling speed as manipulated variables.
  • the skin level control, d. H. Thickness control during skin pass requires that the rolling force must be kept constant in order to obtain a uniform impression of the roughness of the temper rolling on the strip. It should be possible no thickness jumps occur.
  • the method according to the invention advantageously provides for a regulation of the rolling force applied to the rolling stock with the aid of a rolling force control loop, the bending cylinders serving as actuators for the rolling force.
  • a position control loop is provided in order to keep the setting position of the work rolls constant.
  • the method according to the invention provides that, optionally, a flatness control loop can also be provided for regulating the flatness of the rolling stock.
  • the flatness control loop then comprises a flatness measuring device, z. B. a flatness measuring roller at the output of the rolling stand for detecting the actual flatness of the rolling stock.
  • the actual flatness measured in this way is compared with a predetermined desired flatness, ie the difference between these two flatnesses is formed and this difference is calculated as Flatness control deviation fed to a flatness controller, which generates a suitable actuating signal for an actuator, for example, the upper bending cylinder of the upper intermediate or work roll, in accordance with the flatness control deviation.
  • a flatness controller which generates a suitable actuating signal for an actuator, for example, the upper bending cylinder of the upper intermediate or work roll, in accordance with the flatness control deviation.
  • the bending cylinders are controlled in such a way that the flatness at the outlet of the roll stand ideally corresponds to the predetermined desired flatness.
  • the lubricant is circulated and prefiltered after its use and before its reuse or prior to its recirculation.
  • the lubricant is freed of tinsel particles that may be produced during the temper rolling operation.
  • the prefiltering is preferably carried out before a typically anyway carried out very fine filtering of the lubricant.
  • This minimal quantity lubrication basically takes place alternatively to the recycling of the lubricant, as described in the previous paragraph. If, in the reality of minimal quantity lubrication, small residual amounts of lubricant nevertheless remain on the rolling stock, these residual quantities can, of course, still be circulated and reused after prefiltering.
  • the inventive method is provided for non-ferrous metal strip or ferrous metal strip as a rolling stock.
  • rolling oil is preferably used as lubricant, taking advantage of its lubricant function.
  • rolling oil in all modes of operation, that is, both for reducing non-ferrous metal strip or ferrous metal strip, as well as for tempering non-ferrous metal strip or ferrous metal strip.
  • temper rolling rolls typically with a certain surface roughness, are used as work rolls.
  • a rolling stand according to claim 1 is characterized in that the torque transmission device has at least one coupling device and an associated control device for uncoupling the upper or the lower work roll from the at least one drive device during the tempering operation.
  • the advantages of this solution correspond to the advantages mentioned above with reference to the method described.
  • Figure 1 is an inventively designed four-roll mill stand
  • Figure 2 is an inventively designed six-high rolling stand; and Figure 3 shows the inventive method for setting a Reduzier Scs or temper rolling on a combination mill.
  • Figure 1 shows a four-roll mill 100.
  • the mill stand comprises an upper work roll 120-1, a lower work roll 120-2, and an upper backup roll 1 10-1 and a lower backup roll 1 10-2.
  • the work rolls are arranged between the two support rolls. In rolling operation, the two work rolls clamp a nip 128 in order to cold-roll the rolling stock between them.
  • spray bars 195 are arranged at the level of the upper and lower work rolls 120-1, 120-2 for applying coolant and lubricant to the work rolls.
  • a thickness control loop 150 Associated with the roll stand 100 is a thickness control loop 150, a rolling force control loop 160, a position control loop 170 and / or a flatness control loop 180.
  • the mill stand 100 is associated with a lubrication and coolant circuit, which comprises means for collecting the running of the rollers coolant or lubricant, for filtering the used coolant and lubricant and for returning the cleaned coolant or lubricant to in particular the work rolls.
  • the recirculation is typically carried out with a circulating system 192.
  • the cleaning or filtering of the coolant and / or lubricant is typically carried out in a very fine filter 194.
  • this prefilter is additionally preceded by a prefilter 190, for Filter out of baubles from the coolant or lubricant, as obtained during the rolling of rolling stock.
  • This pre-filter 190 can, as shown in FIG. 1, be arranged either in front of or behind a circulation system 192; in any case, it is arranged in the flow direction before the micro-filter 194.
  • the drive of the work rolls 120-1, 120-2 is effected by at least one drive device 124, 124-1, 124-2 with the interposition of a torque transmission device 120 ', 120 ".
  • the torque transmitting device 120 has an upper coupling device 126-1, an upper drive spindle 122-1 and optionally an upper transmission gear for transmitting torque from the upper drive device 124-1 the upper work roll 120-1.
  • the upper drive spindle 122-1 between the upper work roll and the upper drive means 124-1 and the optional transmission gear 129-1 between the upper drive spindle and the upper drive means is arranged.
  • the upper coupling device 126-1 may be disposed between the upper work roll and the upper drive spindle and / or between the upper drive spindle and the upper transmission gear and / or between the upper transmission gear and the upper drive means, and / or is in the neutral position of the upper transmission gear educated.
  • the torque transmission device 120 has a lower clutch device 126-2, a lower drive shaft 122-2, and optionally a lower transmission gear 129-2 for transmitting torque from the lower drive device 124-2 to the lower work roll 120-2 ,
  • the lower drive spindle 122-2 between the lower work roll and the lower drive means 124-2 and the optional lower transmission gear 129-2 between the lower drive spindle and the lower drive means is arranged.
  • the lower coupling means 126-2 may be disposed between the lower work roll and the lower drive spindle and / or between the lower drive spindle and the lower transmission gear and / or between the lower transmission gear and the lower drive means, and / or is in the neutral position of the lower transmission gear educated.
  • the upper coupling device is shown by way of example in an open, that is uncoupled state, while the lower coupling device is shown in the closed, that is coupled state.
  • the torque flow from the drive means 124, 124-1, 124-2 to the work rolls can be selectively interrupted by means of the coupling means. Possible are positive, frictional, magnetic or fluid-dynamic action principles in the coupling device.
  • the actuation of the switchable coupling device can be mechanical, electrical, electromagnetic, pneumatic or in any other construction.
  • the arrangement of the switchable coupling device can take place on or in the comb-rolling gear, within the spindle, or on the roll neck.
  • the four-roll mill 100 shown in Figure 1 may be operated in a skin pass mode; the associated configuration of the roll stand 100 is illustrated schematically in FIG.
  • the two support rollers 1 10-1, 1 10-2 are not driven in the tempering.
  • FIG. 1 also shows upper bending cylinders 140, which act on the drive side AS and on the operating side BS on the upper work roll 120-1. When rolling is in the nip 128 and the two bending cylinders 140 each apply half a bending force F / 2 to the upper work roll 120-1, this action of the bending force causes a negative bending of the upper work roll.
  • the upper support roll 1 10-1 is lifted off the upper work roll 120-1.
  • the significantly lower rolling force in the tempering operation compared to a reduction operation is expressly desired in the temper rolling operation, because in the casting operation it is not the thickness reduction but only the imparting of a surface roughness structure predetermined by the work rolls in the form of temper rolling on the surface of the rolling stock.
  • the rolling force applied to the rolling stock in the temper rolling operation is additionally defined by the bending force additionally applied by the two bending cylinders 140 on the operating side BS and the drive side AS of the rolling stand.
  • the bending cylinder With the help of the bending cylinder, it is possible to define an operating point for the total rolling force acting on the rolling stock and, if desired, to keep this rolling force constant at a predetermined constant rolling force setpoint with the aid of the associated rolling force control loop 160. If the bending cylinders 140 are used in this way for the precise adjustment of the rolling force, this is also referred to as an extended bending system.
  • a particular feature of the temper rolling operation according to the invention is furthermore that none of the two support rolls 1 10-1, 1 10-2 and also only one of the two work rolls 120-1, 120-2 is driven.
  • this is exemplified by the lower work roll 120-2. It is coupled via the closed lower coupling device 126-2 and the lower drive shaft 122-2 and optionally via the transmission gear 129-2 to the lower drive means 124-2, while the upper work roll 120-2 via the opened upper coupling device 126-1 of the associated upper drive means 124-1 is decoupled.
  • the thickness reduction of the rolling stock is significantly lower in the temper rolling operation than in a reducing operation.
  • a thickness control can also take place during a tempering operation; it is then typically referred to as a skin level control and performed by means of a skin pass control loop 150.
  • the tempering control loop controls the thickness decrease of the rolling stock during the tempering to a predetermined constant target thickness by suitable variation of the strip tension of the rolling stock or by suitable variation of the rolling speed.
  • the strip tension or the rolling speed serve as manipulated variables in the case of the skin pass control.
  • a position control loop 170 may be associated with the rolling stand for keeping the setting position of the work rolls constant. This can be detected metrologically either directly or indirectly by evaluating the positions of the bending cylinder 140 and be controlled via the bending cylinder as actuators. Both the control of the rolling force as well as the regulation of the position of the work rolls are preferably carried out in real time. For this purpose, the corresponding control circuits must be correspondingly fast; Preferably, their step responses are shorter than 80 ms.
  • a flatness control loop 180 may be associated with the rolling stand for controlling the flatness of the rolling stock.
  • the flatness control loop 180 comprises a measuring element 197, for example a flatness measuring roller for detecting the rolling stock at the outlet of the rolling stand for detecting the actual flatness of the rolling stock there.
  • This measured actual flatness of the rolling stock is compared by subtraction compared to a predetermined desired flatness and the difference in the flatness resulting deviation is evaluated by a planarity, which in accordance with the flatness control deviation, a control signal to the actuators, eg the upper negative acting bending cylinder 140, outputs to control the flatness of the specified target flatness.
  • the rolling stand is designed for either cold rolling of ferrous metal strip or non-ferrous metal strip.
  • rolling oil or a water-oil mixture is used as a cooling lubricant.
  • the rolling stand is designed as a combination rolling stand, which can be operated either in a Reduzier sunnysmodus or in a skin pass mode.
  • FIG. 2 in contrast to FIG. 1, shows a six-high rolling stand.
  • This differs from the four-roll mill shown in Figure 1 by an upper intermediate roll 130-1, which between the upper work roll and the upper backup roll, and a lower intermediate roll 130-2 disposed between the lower work roll and the lower backup roll.
  • FIG. 2 shows the operation of this six-high rolling stand in the temper rolling mode in which the upper back-up roll 1 10-1 is lifted from the upper intermediate roll 130-1.
  • the upper bending cylinders 140 now act not on the upper work roll 120-1, but on the upper intermediate roll 130-1. Otherwise, the structure of the roll stand and the operation or mode of operation of the roll stand in the temper rolling correspond to the information described above with reference to FIG.
  • FIG. 2 shows a second embodiment of the torque transmitting device 120 ".
  • the torque transmitting device 120" includes, in addition to the coupling device 126, upper and lower drive spindles 122-1, 122-2 and a comb-type gear 129 for transmitting torque from the single drive device 124 on at least one of the work rolls 120-1, 120-2.
  • the comb-roller transmission is connected at its torque input to the single drive device 124.
  • the upper drive spindle 122-1 is between the upper work roll and the upper torque output of the comb-type roller gear
  • the lower drive spindle 122-2 is between the lower work roll and the lower torque output of the comb-rolling gear
  • the comb-type gear 129 is between the upper and lower drive screws and the drive means 124 arranged.
  • the coupling device 126 may be disposed between the upper work roll and the upper drive spindle and / or between the upper drive spindle and the comb-roll transmission and / or between the lower work roll and the lower drive spindle and / or between the lower drive spindle and the comb-roll transmission or is in the idle position formed of Kammwalzgetriebes.
  • the torque transmission device 120 'according to its first embodiment can be operated not only, as shown in Fig. 1, in conjunction with a four-roll stand, but also in conjunction with a six-high stand.
  • the torque transmission device 120 "according to its second embodiment can be operated not only, as shown in Fig. 2, in conjunction with a six-high stand, but also in conjunction with a four-roll stand.
  • the coupling devices are assigned a control device 127.
  • the control device makes it possible to open or close the coupling devices depending on the operation of the rolling stand either in the operating mode reducing operation or in the operation mode temper rolling operation for selecting either the reduce mode or the skin pass mode in a combi mill, which may alternatively run both modes of operation.
  • the framework parameters are first set to reduction mode.
  • the technological control loops such as the thickness control loop
  • the flatness control loop for which the available actuators are essential, are parameterized accordingly.
  • the technological control loops are activated both in skin pass mode and in reduction mode, but possibly parameterized differently.
  • the thickness control typically takes the form of a monitor or mass flow control. All rollers are integrated in the power flow. The adjustment of the rolling force and the position of the work rolls takes place in Reduzier réelle on the Anstellzylinder on the top of the upper intermediate roll or the upper work roll resting support roller act. If intermediate rolls are present, they are in contact with the work rolls. Accordingly, these adjusting cylinders are to be addressed in reducing operation as actuators in said control circuits.
  • both work rolls are rotationally driven by the torque transfer device 120 ', 120 "from the at least one drive device 124, 124-1, 124 - 2.
  • smooth-surfaced rolls are typically selected in the reduce mode essentially ready for rolling.
  • one of the two work rolls within the torque transfer device 120 ', 120' is uncoupled from the drive means by means of the coupler while the other work roll remains coupled. Subsequently, it is then checked whether the expected rolling force in the tempering operation is greater than a predetermined rolling force threshold F_ Gr enz or not. If this is not the case, the upper support roller is lifted from the upper work roll or from the upper intermediate roll.
  • the rolling force and the position control loop are configured so that the upper bending cylinder 140 are actuated as actuators.
  • Thickness control in skin pass mode is typically done as a skin level control. If the rolling force to be set in the temper rolling operation is greater than the predetermined threshold value, the upper backup roll is placed on the upper work roll or the upper intermediate roll.
  • all framework parameters, in particular all setpoint values for the control circuits activated in the skin pass mode are set to suitable nominal values in Dressing operation set. Inn skimming operation, the scaffolding parameters are set in order to ensure the concrete penetration of the bending systems and the scaffold stiffness parameters required for the thickness control.
  • temper rolling rolls with a predetermined surface roughness are typically used in the temper rolling operation.
  • a minimum quantity lubrication or alternatively a lubricant circuit with the prefilter 190 may be provided in order to filter out the abrasion (tinsel) in the tempering operation from the lubricant and thus to relieve the main filter.
  • the rolling stand is then ready for rolling in the temper rolling operation.
  • the combination rolling mill according to the invention is designed to be converted from the Reduzierkonfiguration in the temperament configuration and vice versa.
  • the upper back-up roll may optionally be placed on and off the upper work roll, the upper and lower work rolls may be uncoupled and uncoupled to the drive means and the smooth reduction work rolls must be against the roughened skin-pass mill rolls be exchangeable.
  • the pre-filter for filtering baubles in the skin pass mode can also be removable when changing over to reduction operation, since this prefilter is typically dispensable in the reduction mode.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

L'invention concerne un procédé et une cage (100) de laminage à froid d'un produit. La cage de laminage (100) comporte au moins un cylindre de support supérieur et un cylindre de support inférieur (110-1, 110-2) ainsi qu'un cylindre de travail supérieur et un cylindre de travail inférieur (120-1, 120-2) qui définissent une emprise (128). En option, on peut également prévoir entre les cylindres de travail et les cylindres de support des cylindres intermédiaires supérieur et inférieur (130-1, 130-2). Pour garantir une vitesse circonférentielle absolument identique sur les cylindres de travail supérieur et inférieur pendant le laminage à froid en mode dressage, l'invention propose de découpler les cylindres de travail supérieur et inférieur de leur système d'entraînement correspondant.
PCT/EP2014/058503 2013-04-26 2014-04-25 Procédé et cage de laminage à froid d'un produit WO2014174099A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US14/786,210 US20160059283A1 (en) 2013-04-26 2014-04-25 Method and rolling stand for cold rolling rolled stock
KR1020157031474A KR101737945B1 (ko) 2013-04-26 2014-04-25 압연 스톡을 냉간 압연하기 위한 방법 및 롤 스탠드
JP2016509495A JP2016531754A (ja) 2013-04-26 2014-04-25 圧延材の冷間圧延をするための方法及びロールスタンド
EP14719338.7A EP2988884B1 (fr) 2013-04-26 2014-04-25 Procédé et cage de laminage à froid d'un produit
CN201480023734.XA CN105142810A (zh) 2013-04-26 2014-04-25 用于冷轧轧件的方法和轧机机架

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102013207690 2013-04-26
DE102013207690.8 2013-04-26
DE102013224647 2013-11-29
DE102013224647.1 2013-11-29

Publications (1)

Publication Number Publication Date
WO2014174099A1 true WO2014174099A1 (fr) 2014-10-30

Family

ID=50549344

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/058503 WO2014174099A1 (fr) 2013-04-26 2014-04-25 Procédé et cage de laminage à froid d'un produit

Country Status (7)

Country Link
US (1) US20160059283A1 (fr)
EP (1) EP2988884B1 (fr)
JP (1) JP2016531754A (fr)
KR (1) KR101737945B1 (fr)
CN (1) CN105142810A (fr)
DE (1) DE102014207859A1 (fr)
WO (1) WO2014174099A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021211661A1 (de) 2021-10-15 2023-04-20 Sms Group Gmbh Fluidbehandlung eines bandförmigen Walzprodukts

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105013836B (zh) * 2015-07-25 2017-04-05 北京首钢自动化信息技术有限公司 无延伸率检测状态下平整机轧制力控制装置及其方法
EP3342494B1 (fr) * 2016-12-30 2023-06-07 Outokumpu Oyj Appareil et procédé de laminage flexible de bandes métalliques
KR20200033893A (ko) * 2017-07-21 2020-03-30 노벨리스 인크. 저압 압연으로 금속 기재의 평탄도를 제어하기 위한 시스템 및 방법
JP7135991B2 (ja) * 2019-04-25 2022-09-13 トヨタ自動車株式会社 校正判断装置、及び校正判断方法
CN110216153B (zh) * 2019-06-11 2021-05-25 攀钢集团攀枝花钢钒有限公司 用于轧辊辊缝形状的控制方法及其轧机
EP3791971A1 (fr) * 2019-09-10 2021-03-17 Primetals Technologies Austria GmbH Laminage à froid d'un article à laminer dans un train de laminage pourvu d'une pluralité de cages de laminoir
DE102020212436A1 (de) 2020-10-01 2022-04-07 Thyssenkrupp Steel Europe Ag Verfahren zur Herstellung eines dressierten Kaltbands
CN112207139B (zh) * 2020-11-04 2023-04-18 攀枝花学院 六辊平整机轧制力的计算方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3411853A1 (de) * 1984-03-30 1985-10-10 SMS Schloemann-Siemag AG, 4000 Düsseldorf Angetriebene stuetzwalzen aufweisendes vier- oder sechswalzengeruest
JPS6268613A (ja) * 1985-09-20 1987-03-28 Hitachi Ltd 圧延機のロ−ル駆動装置
JPS62197207A (ja) * 1985-10-09 1987-08-31 Hitachi Ltd 圧延機の駆動装置
EP1318879B1 (fr) * 2000-09-20 2004-11-03 SMS Demag Aktiengesellschaft Entrainement mixte pour une cage a quatre ou a six cylindres et procede d'utilisation dudit entrainement

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA782796A (en) * 1965-03-09 1968-04-16 A. Baker William Rolling mill
JPS5522461A (en) * 1978-08-07 1980-02-18 Hitachi Ltd Rolling mill and rolling method
JPS57184502A (en) * 1981-05-06 1982-11-13 Nippon Steel Corp Double-purpose multiple stages cluster rolling mill
JPS57184503A (en) * 1981-05-06 1982-11-13 Nippon Steel Corp Skin pass rolling method by multiple stages cluster rolling mill
JPS61229413A (ja) * 1985-04-03 1986-10-13 Hitachi Ltd 圧延機用駆動装置
US5054302A (en) * 1989-04-07 1991-10-08 Kawasaki Steel Corporation Hardness compensated thickness control method for wet skin-pass rolled sheet
JPH07115052B2 (ja) * 1989-04-11 1995-12-13 川崎製鉄株式会社 表面処理鋼板用ｄｒ原板の冷間圧延機
US5081857A (en) * 1989-04-28 1992-01-21 Nkk Corporation Cold rolling method using cleaning brushes for at least the back up rolls
JPH03406A (ja) * 1989-05-30 1991-01-07 Nkk Corp 圧延方法
JPH0366406A (ja) * 1989-08-02 1991-03-22 Hitachi Ltd 圧延機用駆動装置
US6001784A (en) * 1993-10-05 1999-12-14 Nalco Chemical Company High melt point solid film prelube emulsion for use on aluminum and other metals
DE4417274C2 (de) * 1994-05-18 2003-04-17 Sms Demag Ag Verfahren zum Betreiben eines Walzgerüstes
JP3355995B2 (ja) * 1997-05-08 2002-12-09 日本軽金属株式会社 ドローレス成形および複合成形性に優れたクロスフィン用アルミニウム合金薄板およびその製造方法
DE19744503A1 (de) 1997-10-09 1999-04-15 Schloemann Siemag Ag Vorrichtung und Verfahren zur Beeinflussung der Reibungsverhältnisse zwischen einer oberen und einer unteren Walze eines Walzgerüstes
DE19918880A1 (de) 1999-04-26 2000-11-02 Sms Demag Ag Walzverfahren für ein Metallband und hiermit korrespondierende Walzanordnung
JP2001137917A (ja) * 1999-11-15 2001-05-22 Nippon Steel Corp ストリップ調質圧延機の駆動伝達装置
DE10131369A1 (de) 2001-06-28 2003-01-09 Sms Demag Ag Verfahren und Vorrichtung zum Kühlen und Schmieren von Walzen eines Walzgerüstes
DE10141180A1 (de) 2001-08-22 2003-03-06 Sms Demag Ag Walzgerüst zum Walzen von unterschiedlichem Walzgut, das unterschiedliche Walzkräfte erfordert
DE10143407A1 (de) * 2001-09-05 2003-03-20 Sms Demag Ag Kombinierte Verwendung von Öl und Emulsionen beim Kaltwalzen von Bändern
DE10221515C1 (de) * 2002-05-14 2003-11-13 Hydro Aluminium Deutschland Verfahren zur Herstellung eines Aluminiumrohres
DE102004025058A1 (de) 2004-05-18 2005-12-08 Sms Demag Ag Verfahren und Vorrichtung zur Kühlung und/oder Schmierung von Walzen und/oder Walzgut
DE102006024101A1 (de) * 2006-05-23 2007-11-29 Sms Demag Ag Walzgerüst und Verfahren zum Walzen eines Walzbandes
DE102007032485A1 (de) 2006-12-15 2008-06-19 Sms Demag Ag Verfahren und Schmiermittelauftragsvorrichtung zum Regeln der Planheit und/oder der Rauheit eines Metallbandes
DE102009019784A1 (de) * 2009-05-02 2010-11-04 Sms Siemag Ag Vorrichtung und Verfahren zur Kühlung eines Metallbandes
EP2418031A1 (fr) * 2010-08-13 2012-02-15 Siemens Aktiengesellschaft Procédé de fabrication d'une bande métallique à l'aide d'une installation de laminage par coulée, dispositif de commande et/ou de réglage pour une installation composite de laminage par coulée et installation composite de laminage par coulée
CN202366958U (zh) * 2011-11-30 2012-08-08 洛阳正扬冶金技术股份有限公司 一种冷轧机、箔轧机的主机上下轧辊双驱动机构

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3411853A1 (de) * 1984-03-30 1985-10-10 SMS Schloemann-Siemag AG, 4000 Düsseldorf Angetriebene stuetzwalzen aufweisendes vier- oder sechswalzengeruest
JPS6268613A (ja) * 1985-09-20 1987-03-28 Hitachi Ltd 圧延機のロ−ル駆動装置
JPS62197207A (ja) * 1985-10-09 1987-08-31 Hitachi Ltd 圧延機の駆動装置
EP1318879B1 (fr) * 2000-09-20 2004-11-03 SMS Demag Aktiengesellschaft Entrainement mixte pour une cage a quatre ou a six cylindres et procede d'utilisation dudit entrainement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021211661A1 (de) 2021-10-15 2023-04-20 Sms Group Gmbh Fluidbehandlung eines bandförmigen Walzprodukts
WO2023061717A1 (fr) 2021-10-15 2023-04-20 Sms Group Gmbh Traitement par un fluide d'un produit laminé de type bande

Also Published As

Publication number Publication date
DE102014207859A1 (de) 2014-10-30
JP2016531754A (ja) 2016-10-13
EP2988884A1 (fr) 2016-03-02
EP2988884B1 (fr) 2016-12-14
CN105142810A (zh) 2015-12-09
US20160059283A1 (en) 2016-03-03
KR20150139571A (ko) 2015-12-11
KR101737945B1 (ko) 2017-05-19

Similar Documents

Publication Publication Date Title
EP2988884B1 (fr) Procédé et cage de laminage à froid d'un produit
EP2691188B1 (fr) Procédé permettant de faire fonctionner un train de laminoir
EP2032276B1 (fr) Cage de laminage et procédé de laminage d'une tôle en bande
EP2588257B1 (fr) Procédé pour faire fonctionner un laminoir pour laminer des produits plats à laminer avec pronostic de l'usure des cylindres
DE3212070C2 (de) Walzgerüst mit einer Vorrichtung zur Einhaltung der Ebenheit des gewalzten Guts
EP3140041B1 (fr) Broyeur à cylindres et son procédé de commande
DE2359201C2 (de) Tandem-Fertigstraße zum Walzen dünner Bleche
WO2008043605A2 (fr) Laminoir et procédé pour commander un laminoir
WO2009004005A1 (fr) Laminage d'un feuillard dans un laminoir en utilisant la dernière cage du laminoir comme réducteur de traction
EP2293889B1 (fr) Train de laminage continental doté d'intégrations et/ou de détachements de cages de laminoir en fonctionnement continu
DE102007041878B4 (de) Verfahren und Rollenmühle zur Zerkleinerung von Mahlgut
DE3109536C3 (de) Regelanordnung für ein Quarto-Metallwalzwerk
DE3422762A1 (de) Verfahren zur reibungskompensation in einem walzwerk
DE112005000112T5 (de) Online-Schleifverfahren für Arbeitswalze
EP1699573B1 (fr) Fonctionnements et types de cages combines dans des trains de laminoir en tandem a froid
EP0349885B1 (fr) Méthode pour laminer à froid des feuilles et des bandes
DE102012101489A1 (de) Vertikalrollenmühle und Verfahren zum Betreiben einer Vertikalrollenmühle
AT406233B (de) Verfahren zum regeln des walzgutdurchlaufes durch eine kontinuierliche walzstrasse
EP1704000B1 (fr) Procede de lubrification de produits a laminer
DE1913105C3 (de) Steuereinrichtung für ein zwei Arbeitswalzen und zwei Stützwalzen aufweisendes Vierwalzengerüst
EP1514616A1 (fr) Dispositif de laminage et procédé de laminage
DE112005000005T5 (de) Mehrwalzenspaltkalander
WO2023186471A1 (fr) Installation de rouleaux lamineurs et procédé pour la faire fonctionner
DE102020215769A1 (de) Warmwalzgerüst für ein Warmwalzwerk und zum Herstellen eines metallenen Flachprodukts, Warmwalzwerk sowie Verfahren zum Betreiben eines Warmwalzwerks
WO2023099531A1 (fr) Procédé pour faire fonctionner une ligne de laminage, et produit-programme informatique pour la mise en œuvre du procédé

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201480023734.X

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14719338

Country of ref document: EP

Kind code of ref document: A1

REEP Request for entry into the european phase

Ref document number: 2014719338

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2014719338

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 14786210

Country of ref document: US

ENP Entry into the national phase

Ref document number: 2016509495

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 20157031474

Country of ref document: KR

Kind code of ref document: A