EP1018376A2 - Walzstrasse zum Walzen von stabförmigem Walzgut, z.B. Stabstahl oder Draht - Google Patents
Walzstrasse zum Walzen von stabförmigem Walzgut, z.B. Stabstahl oder Draht Download PDFInfo
- Publication number
- EP1018376A2 EP1018376A2 EP99124714A EP99124714A EP1018376A2 EP 1018376 A2 EP1018376 A2 EP 1018376A2 EP 99124714 A EP99124714 A EP 99124714A EP 99124714 A EP99124714 A EP 99124714A EP 1018376 A2 EP1018376 A2 EP 1018376A2
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- EP
- European Patent Office
- Prior art keywords
- rolling
- stands
- roll
- stand
- stock
- 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.)
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- 238000005096 rolling process Methods 0.000 title claims abstract description 216
- 229910000831 Steel Inorganic materials 0.000 title claims description 4
- 239000010959 steel Substances 0.000 title claims description 4
- 239000000463 material Substances 0.000 claims abstract description 21
- 238000004513 sizing Methods 0.000 claims description 34
- 230000001419 dependent effect Effects 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 230000002349 favourable effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 description 9
- 238000012937 correction Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
Images
Classifications
-
- 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
- B21B37/58—Roll-force control; Roll-gap control
- B21B37/64—Mill spring or roll spring compensation systems, e.g. control of prestressed mill 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
- B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/18—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
- B21B2203/22—Hinged chocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/16—Adjusting or positioning rolls
- B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
- B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
- B21B31/28—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by toggle-lever mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/16—Adjusting or positioning rolls
- B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
- B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting
-
- 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
- B21B37/48—Tension control; Compression control
- B21B37/52—Tension control; Compression control by drive motor control
-
- 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
- B21B37/58—Roll-force control; Roll-gap control
- B21B37/62—Roll-force control; Roll-gap control by control of a hydraulic adjusting device
Definitions
- the present invention relates to a rolling mill for rolling rod-shaped Rolled material, e.g. B. steel bars or wire, with several adjustable on nips, of the rolling stock passed through one after the other, combined into pairs of rolling stands active rolling stands, by means of which the rolling stock is applied with Rolling forces can be rolled to a final height and a vertical width perpendicular thereto.
- a rolling mill for rolling rod-shaped Rolled material e.g. B. steel bars or wire
- several adjustable on nips of the rolling stock passed through one after the other, combined into pairs of rolling stands active rolling stands, by means of which the rolling stock is applied with Rolling forces can be rolled to a final height and a vertical width perpendicular thereto.
- Rolling mills of this type are generally known.
- the individual mill stands one Such rolling mill are alternately as horizontal and as vertical stands trained, the last pass rolling mill always the end profile, z. B. a round, square or hexagonal caliber.
- the roll stands are open by means of electric or hydraulic motors Roll gap adjustable.
- the setting of the roll gap can usually only in load-free state. It is not possible to adjust the nips under load possible. It is only possible to change the speeds of the roll stands during the Operating change. Other interventions such as B. are a roll gap correction not possible.
- the rolling stands take over in the rolling train depending on the rolling Product, various tasks, namely either an acceptance or a so-called Presizing or a so-called sizing.
- the main task of acceptance stands is to make the cross section of the rolling stock possible greatly reduce.
- the respective roll stand should be as rigid as possible his.
- the cross section can be optimized.
- the main task of presizing scaffolds is the ratio of height to width of the rolling stock in front of the subsequent sizing stands to a defined value adjust. For this, z. B. with a round end profile, the oval frameworks high and the round frameworks have an optimal rigidity. Because by that temperature and cross-sectional disturbances are even on both dimensions distributed.
- the main task of sizing stands is to roll the rolling stock to the desired final dimensions to be rolled and at the same time to ensure good ovality of the rolling stock.
- z. B. with a round end profile the oval structure relatively high and the round scaffold have a lower, optimal rigidity.
- the last two active roll stands always work in sizing mode. At least a pair of mill stands directly upstream of the sizing stands works in Presizing mode. The remaining mill stands work in acceptance mode. Because of The adjustability of the fractions can now be set which rolling stands work in sizing mode, in presizing mode and in acceptance mode.
- the ovality of the end product is particularly good if the rolling force-related Springing of the sizing frames was compensated on average for smaller fractions are called the spring force-related spring-ups of the presizing stands.
- Tolerance compliance is even better when the rolling stock is removed from the presizing stands is rolled such that the sizing frames in their most favorable dynamic range operate.
- This can e.g. B. can be achieved in that the roll gaps of the presizing stands can be determined from the roll gaps of the sizing stands.
- the dimensional accuracy of the rolled rolling stock can be increased even further, if a measuring device is added to the sizing stand that is later passed through by the rolling stock is subordinate to the detection of the final height and final width of the rolling stock and the roll gaps of the sizing stands based on the recorded end height and width can be corrected (monitor control).
- the rolling stock can be rolled even more precisely, even if the other pairs of stands, preferably even any other roll stand, measuring devices are subordinate to record the height and width of the rolling stock.
- the roll gaps for these roll stands can be taken directly from the detected heights and widths can be determined.
- the rolling mill a storage device for storing a Variety of material properties of rolled goods, the final height, the final width, the framework parameters and the framework settings, an input device for entering the material properties, the final height and the final width of a new rolling stock to be rolled and a comparison device for comparing the material properties, the final height and the final width of the rolling stock to be rolled with the material properties, the final height and the final width of the saved Rolled goods and the current stand parameters with the saved Has stand parameters, so that the roll stands at matching Stand parameters when rolling a new rolling stock onto the stand settings for an already rolled rolling stock with corresponding material properties and final dimensions can be preset.
- the stand parameters particularly include the roll diameters.
- the scaffold settings include in particular the roll gaps, the rolling speeds and the fractions.
- the material properties of the rolling stock include in particular the temperature, the initial dimensions and the quality of the rolling stock.
- the rolling mill a comparison device to compare yourself when rolling the new rolling stock resulting rolling parameters with those corresponding to the new stand settings Rolling parameters and an output device for outputting a Warning signal when there are significant deviations when rolling the new one Rolling stock resulting from the rolling parameters with the new stand settings
- Corresponding rolling parameters it is possible to use the billet to check whether he actually entered the material properties having.
- the rolling parameters include in particular the rolling forces and / or the rolling moments.
- a rolling mill has roll stands 1-10, which are in succession are passed through by a rolling stock 11.
- the rolling stock 11 is in the present Case a rod-shaped rolling stock 11, for. B. steel bars or wire.
- the roll stand 10 is the first to pass through the roll stand 1 as the last.
- the mill stands 1 - 10 are alternately designed as horizontal and vertical frames. she have z. B. alternately round and oval calibers. That of the rolling stock 11 last passed through mill stand 1 z. B. a round caliber.
- Two in a row Roll stands 1 - 10 are combined to form a pair of roll stands.
- the rolling stock 11 is subjected to rolling forces by means of the roll stands 1-10 F3 - F10 can be rolled to a final height h and a vertical width b perpendicular to this.
- the last two roll stands 1 and 2 are according to the embodiment inactive. So you do not roll the rolling stock 11.
- the rolling stock 11 passes through only the last two roll stands 1, 2. So there are only the roll stands 3 - 10 active. This is possible because the final dimensions h, b according to the embodiment are relatively large. With smaller values for the final dimensions h, b would the last two roll stands 1, 2 are also activated.
- the quick-change devices have inactive mill stands - in this case the Rolling stands 1 and 2 - extended from the rolling mill and only when necessary entered the rolling mill.
- the roll stands 1 - 10 are all constructed in the same way. The following is therefore only the structure of the roll stand 3 described.
- a hydraulic cylinder unit 12 is assigned to the roll stand 3, by means of which a roll gap s3 can be set under load.
- the required rolling force F3 is associated with the hydraulic cylinder unit 12 and the working pressure p3 to whom this is applied.
- the hydraulic cylinder unit 12 is from controlled a roll gap control 13.
- the hydraulic cylinder unit 12 is controlled by the roll gap control 13 first controlled in such a way that the roll gap s3 closed becomes.
- the working pressure p3 is practically zero. If the roll gap s3 completely has closed, the working pressure p3 increases. Because of the increasing working pressure p3 increases the force F3 exerted on the roll stand 3.
- the mill stand 3 thereby springs open.
- the roll gap control 13 is continuously transmitted at which working pressure p3 which adjustment path a3 of the hydraulic cylinder unit 12 is taken. From this curve, the roll gap control 13 can then on the one hand the zero point of the roll gap s3 and the spring constant C3 of the Determine roll stand 3.
- the spring constant C3 is required to when rolling the spring force-related suspension, which is the product of spring constant C3 and rolling force F3 results.
- the roll gap control 13 becomes a desired roll gap s3 * and an expected rolling force F3 * is given. Due to the known zero point of the Roll gap s3 and the known spring constant C3 can control the roll gap 13 then position the hydraulic cylinder unit 12 in such a way that the roll stand 3 assumes the target roll gap s3 * after springing open.
- the rolling force F3 varies during rolling.
- the roll stand 3 springs up more or less in accordance with the variable rolling force F3.
- the spring-force-related spring-back can be continuously measured by detecting the working pressure p3 and correspondingly correcting the adjustment path a3 C3 ⁇ (F3 - F3 *) be compensated.
- the lamination of the roll stand 3 due to the rolling force is therefore only compensated to a fraction t3.
- the fraction t3 is given to the roll gap control 13 by a higher-level computer 14 - see FIG. 1.
- the sizing frames 3, 4 only work with optimal dynamics if the cross section of the rolling stock 11 fed to them in a predetermined cross-sectional area Therefore, the rolling stock 11 is from the rolling stands 5, 6, the sizing stands 3, 4 are immediately upstream, always rolled such that the Sizing stands 3, 4 are operated in their most favorable dynamic range.
- the Roll stands 5, 6 thus work as so-called presizing stands 5, 6.
- rolling stands 7-10 are immediately upstream of the presizing stands 5, 6. In these, the rolling stock 11 is rolled as much as possible to make it with a minimum total number of stitches to its final dimensions h, b roll can.
- the rolling stands 7-10 thus work as so-called acceptance stands 7 - 10th
- the roll stands 5, 6 are used as presizing stands 5, 6 operated.
- the rolling stands of two or even could three pairs of mill stands can be operated as presizing stands.
- the two inactive roll stands 1 and 2 a measuring device 15 for detecting the final height h and final width b of the rolling stock 11.
- the detected end values h, b are transmitted to the higher-level computer 14.
- the roll gaps s3, s4 are thus due to the final height h and the detected final width b can be corrected.
- the superordinate computer 14 can on the basis of the transmitted final dimensions h, b and the nominal roll gap s3 *, s4 * of the sizing stands 3, 4 the dimensions determine the rolling stock 11 between the roll stands 4 and 5. Based on these Ascertainable dimensions, the higher-level computer 14 can then also target roll gaps Determine s5 *, s6 * for the presizing stands 5, 6 and their roll gap controls pretend.
- the measuring device 15 behind the Roll stand 1 it is also possible, in addition to the measuring device 15 behind the Roll stand 1 to provide further measuring devices 16 - 19, which are immediately behind the pair of sizing stands, the pair of presizing stands and the pairs of acceptance stands are arranged. There is preferably even 1 behind each roll stand - 10 a measuring device 15 -19 arranged. Using the higher-level computer 14 is then the respective roll gap regulations of the individual roll stands 3 - 10 can be specified directly which roll gap s3 * - s10 * you should set.
- Tension measuring devices are arranged between the roll stands 1-10.
- the measured values of the tension measuring devices 20 are also transmitted to the higher-level computer 14. This can by comparing the train measurements with the positions of the previous one Roll stands 1 - 10 determine whether the fraction t3 - t10 by which the rolling force-related Spring deflections are compensated for, is optimally set. Possibly the respective fraction t3 - t10 can be corrected, so the result during of rolling are optimized.
- the parent computer 14 For each rolled material 11 that has already been rolled, the parent computer 14 stored a record.
- the record includes on the one hand the roll diameters of the roll stands 1 - 10 as stand parameters, on the other hand the stand settings s3 - s10, t3 - t10 of the roll stands 1 - 10 and thirdly, the material properties of the rolling stock 11.
- the roll stand 1 - 10 are therefore in particular the roll diameters, the roll gaps s3-s10, the rolling speeds and the fractions t3 - t10 are stored. Furthermore, it is saved what temperature, what initial dimensions and what quality has a rolled rolling stock 11.
- the data set also includes 11 per rolling stock the final height to be rolled h and the final width to be rolled b.
- Finally includes the data set also includes the rolling parameters resulting from the rolling of the rolling stock 11 F3 - F10, i.e. the rolling forces F3 - F10 and / or the rolling moments.
- the temperature of the rolling stock 11 can, for example, by means of a temperature measuring device 22 are determined, which are arranged at the entrance of the rolling mill is.
- the material properties of the rolling stock 11 can, for example, have a Keyboard 23 serving as an input device in the higher-level computer 14 can be entered.
- each roll stand is 1 - 10 can be activated individually. You can also set 1-10 for each individual roll stand, which fraction t3 - t10 of its spring force-related spring deflection it compensates for. In addition, it can be specified for each individual scaffold whether it is a monitor control, d. H. a correction of his target roll gap s3 * - s10 * due to the measured heights h and widths b of the measuring devices 15-19 or Not.
- each of the roll stands 1 - 10 can be used as a sizing stand, as a presizing stand or operated as acceptance scaffolding. This is no longer one Question of the construction of the respective mill stand 1 - 10, but only one question the corresponding setting of the roll gap regulations, which is in seconds can be made.
- all roll stands 1-10 are of identical design.
- all roll stands 1 - 10 can be adjusted via hydraulic cylinder units 12. If it is known from the outset that only some of the roll stands 1 - 10 can be considered as sizing and presizing stands, the other rolling stands, e.g. B. the roll stands 9 and 10, but also be made in a different way. At least the presizing and sizing frameworks, at least the last four active roll stands 3 - 6, but should be hydraulically adjustable.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
- Metal Rolling (AREA)
Abstract
Description
- daß die Walzspalte der aktiven Walzgerüste über Hydraulikzylindereinheiten einstellbar sind,
- daß die Hydraulikzylindereinheiten von Walzspaltregelungen ansteuerbar sind, mittels derer walzkraftbedingte Auffederungen der aktiven Walzgerüste zumindest zu Bruchteilen kompensierbar sind, und
- daß die Bruchteile für jedes aktive Walzgerüst separat einstellbar sind.
- Die walzkraftbedingte Auffederung des von dem Walzgut später durchlaufenen Sizinggerüsts wird zu einem kleineren Bruchteil kompensiert als die walzkraftbedingte Auffederung des von dem Walzgut vorher durchlaufenen Sizinggerüsts.
- Die walzkraftbedingte Auffederung des von dem Walzgut später durchlaufenen Presizinggerüsts wird zu einem kleineren Bruchteil kompensiert als die walzkraftbedingte Auffederung des von dem Walzgut vorher durchlaufenen Presizinggerüsts.
- Die walzkraftbedingten Auffederungen der Abnahmegerüste werden zumindest im wesentlichen in vollem Umfang kompensiert.
- Figur 1
- eine Walzstraße für stabförmiges Walzgut und
- Figur 2
- eine Hydraulikzylindereinheit mit einer Walzspaltregelung.
- Die walzkraftbedingte Auffederung des Sizinggerüsts 3 wird zu einem kleineren Bruchteil t3 kompensiert als die walzkraftbedingte Auffederung des Sizinggerüsts 4.
- Die walzkraftbedingte Auffederung des Presizinggerüsts 5 wird zu einem kleineren Bruchteil t5 kompensiert als die walzkraftbedingte Auffederung des Presizinggerüsts 6.
- Die walzkraftbedingten Auffederungen der Sizinggerüste 3, 4 werden im Mittel zu geringeren Bruchteilen t3, t4 kompensiert als die walzkraftbedingten Auffederungen der Presizinggerüste 5, 6.
- Die walzkraftbedingten Auffederungen der Abnahmegerüste 7 - 10 werden zu 90 % - 100 %, also zumindest im wesentlichen in vollem Umfang, kompensiert.
- 1 - 10
- Walzgerüste
- 11
- Walzgut
- 12
- Hydraulikzylindereinheit
- 13
- Walzspaltregelung
- 14
- übergeordneter Rechner
- 15 - 19
- Meßeinrichtungen
- 20
- Zugmeßeinrichtung
- 21
- Speichereinrichtung
- 22
- Temperaturmeßeinrichtung
- 23
- Tastatur
- 24
- Monitor
- a3
- Verstellweg
- b
- Endhöhe
- C3
- Federkonstante
- F3 - F10
- Walzkräfte
- F3* - F10*
- erwartete Walzkräfte
- h
- Endbreite
- p3
- Arbeitsdruck
- s3 - s10
- Walzspalte
- s3* - s10*
- Sollwalzspalte
- t3 - t10
- Bruchteile
Claims (17)
- Walzstraße zum Walzen von stabförmigem Walzgut (11), z. B. Stabstahl oder Draht, mit mehreren auf Walzspalte (s3 - s10) einstellbaren, von dem Walzgut (11) nacheinander durchlaufenen, zu Walzgerüstpaaren zusammengefaßten aktiven Walzgerüsten (3 - 10), mittels derer das Walzgut (11) unter Aufbringung von Walzkräften (F3 - F10) auf eine Endhöhe (h) und eine hierzu senkrechte Endbreite (b) walzbar ist,
dadurch gekennzeichnet,daß die Walzspalte (s3 - s10) der aktiven Walzgerüste (3 - 10) über Hydraulikzylindereinheiten (12) einstellbar sind,daß die Hydraulikzylindereinheiten (12) von Walzspaltregelungen (13) ansteuerbar sind, mittels derer walzkraftbedingte Auffederungen der aktiven Walzgerüste (3 - 10) zumindest zu Bruchteilen (t3 - t10) kompensierbar sind, unddaß die Bruchteile (t3 - t10) für jedes aktive Walzgerüst (3 - 10) separat einstellbar sind. - Walzstraße nach Anspruch 1,
dadurch gekennzeichnet,
daß bei den Walzgerüsten (3, 4) (Sizinggerüsten) des zuletzt durchlaufenen Walzgerüstpaares die walzkraftbedingte Auffederung des von dem Walzgut (11) später durchlaufenen Sizinggerüsts (3) zu einem kleineren Bruchteil (t3) kompensiert wird als die walzkraftbedingte Auffederung des von dem Walzgut (11) vorher durchlaufenen Sizinggerüsts (4). - Walzstraße nach Anspruch 2,
dadurch gekennzeichnet,
daß das Walzgut (11) von den Walzgerüsten (5, 6) (Presizinggerüsten) mindestens eines den Sizinggerüsten (3, 4) unmittelbar vorgeordneten Walzgerüstpaares derart gewalzt wird, daß die Sizinggerüste (3, 4) in ihrem günstigsten Dynamikbereich betrieben werden. - Walzstraße nach Anspruch 3,
dadurch gekennzeichnet,
daß die walzkraftbedingte Auffederung des von dem Walzgut (11) später durchlaufenen Presizinggerüsts (5) zu einem kleineren Bruchteil (t5) kompensiert wird als die walzkraftbedingte Auffederung des von dem Walzgut (11) vorher durchlaufenen Presizinggerüsts (6). - Walzstraße nach Anspruch 3 oder 4,
dadurch gekennzeichnet,
daß die walzkraftbedingten Auffederungen der Sizinggerüste (3, 4) im Mittel zu geringeren Bruchteilen (t3, t4) kompensiert werden als die walzkraftbedingten Auffederungen der Presizinggerüste (5, 6). - Walzstraße nach Anspruch 3, 4 oder 5,
dadurch gekennzeichnet,
daß die Walzspalte (s5, s6) der Presizinggerüste (5, 6) aus den Walzspalten (s3, s4) der Sizinggerüste (3, 4) bestimmt werden. - Walzstraße nach Anspruch 3, 4, 5 oder 6,
dadurch gekennzeichnet,
daß den Presizinggerüsten (5, 6) mindestens ein Walzgerüstpaar unmittelbar vorgeordnet ist, in dessen Walzgerüsten (7 - 10) (Abnahmegerüsten) das Walzgut (11) so stark wie möglich im Querschnitt reduziert wird. - Walzstraße nach Anspruch 7,
dadurch gekennzeichnet,
daß die walzkraftbedingten Auffederungen der Abnahmegerüste (7 - 10) zumindest im wesentlichen in vollem Umfang kompensiert werden. - Walzstraße nach einem der Ansprüche 2 bis 8,
dadurch gekennzeichnet,
daß dem von dem Walzgut (11) später durchlaufenen Sizinggerüst (3) eine Meßeinrichtung (15) zur Erfassung von Endhöhe (h) und Endbreite (b) des Walzguts (11) nachgeordnet ist und daß die Walzspalte (s3, s4) der Sizinggerüste (3, 4) aufgrund der erfaßten Endhöhe (h) und Endbreite (b) korrigierbar sind. - Walzstraße nach Anspruch 9,
dadurch gekennzeichnet,
daß auch den anderen Walzgerüstpaaren, vorzugsweise sogar jedem anderen Walzgerüst (4 - 10), Meßeinrichtungen (17 - 19) zur Erfassung von Höhe und Breite des Walzguts (11) nachgeordnet sind. - Walzstraße nach einem der obigen Ansprüche,
dadurch gekennzeichnet,
daß sie mindestens eine Temperaturmeßeinrichtung (22) zur Messung der Temperatur des Walzguts (11) aufweist. - Walzstraße nach einem der obigen Ansprüche,
dadurch gekennzeichnet,
daß die Bruchteile (t3 - t10) anhand von Zug- und/oder Höhen- und Breitenmessungen während des Walzens optimierbar sind. - Walzstraße nach einem der obigen Ansprüche,
dadurch gekennzeichnet,
daß sie eine Speichereinrichtung (21) zum Abspeichern einer Vielzahl von Materialeigenschaften von Walzgütern (11), der Endhöhe (h), der Endbreite (b), der Gerüstparameter und der Gerüsteinstellungen (s3 - s10, t3 - t10), eine Eingabeeinrichtung (23) zur Eingabe der Materialeigenschaften, der Endhöhe (h) und der Endbreite (b) eines neu zu walzenden Walzguts (11) und eine Vergleichseinrichtung (14) zum Vergleichen der Materialeigenschaffen, der Endhöhe (h) und der Endbreite (b) des neu zu walzenden Walzguts (11) mit den Materialeigenschaften, der Endhöhe (h) und der Endbreite (b) der abgespeicherten Walzgüter (11) und der momentanen Gerüstparameter mit den abgespeicherten Gerüstparametern aufweist, so daß die Walzgerüste (1 - 10) bei übereinstimmenden Gerüstparametern beim Walzen eines neuen Walzguts (11) auf die Gerüsteinstellungen (s3 - s10, t3 - t10) für ein bereits gewalztes Walzgut (11) mit korrespondierenden Materialeigenschaften und Endabmessungen (h, b) voreinstellbar sind. - Walzstraße nach Anspruch 13,
dadurch gekennzeichnet,
daß die Gerüstparameter die Walzendurchmesser und die Gerüsteinstellungen (s3 - s10, t3 - t10), die Walzspalte (s3 - s10), die Walzdrehzahlen und die Bruchteile (t3 - t10) umfassen. - Walzstraße nach Anspruch 13 oder 14,
dadurch gekennzeichnet,
daß die Materialeigenschaften des Walzguts (11) die Temperatur, die Anfangsabmessungen und die Qualität des Walzguts (11) umfassen. - Walzstraße nach Anspruch 13, 14 oder 15,
dadurch gekennzeichnet,
daß in der Speichereinrichtung (21) auch eine Vielzahl sich beim Walzen der Walzgüter (11) ergebender Walzparameter (F3 - F10) abspeicherbar ist und daß die Walzstraße eine Vergleichseinrichtung (14) zum Vergleichen der beim Walzen des neuen Walzguts (11) sich ergebenden Walzparameter (F3 - F10) mit den mit den neuen Gerüsteinstellungen (s3 - s10, t3 - t10) korrespondierenden Walzparametern (F3 - F10) und eine Ausgabeeinrichtung (24) zum Ausgeben eines Warnsignals bei signifikanten Abweichungen der beim Walzen des neuen Walzguts (11) sich ergebenden Walzparameter (F3 - F10) von den mit den neuen Gerüsteinstellungen (s3 - s10, t3 - t10) korrespondierenden Walzparametern (F3 - F10) aufweist. - Walzstraße nach Anspruch 16,
dadurch gekennzeichnet,
daß die Walzparameter (F3 - F10) die Walzkräfte (F3 - F10) und/oder die Walzmomente umfassen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19900428 | 1999-01-08 | ||
DE19900428A DE19900428A1 (de) | 1999-01-08 | 1999-01-08 | Walzstraße zum Walzen von stabförmigem Walzgut, z. B. Stabstahl oder Draht |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1018376A2 true EP1018376A2 (de) | 2000-07-12 |
EP1018376A3 EP1018376A3 (de) | 2002-12-18 |
Family
ID=7893765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99124714A Withdrawn EP1018376A3 (de) | 1999-01-08 | 1999-12-11 | Walzstrasse zum Walzen von stabförmigem Walzgut, z.B. Stabstahl oder Draht |
Country Status (3)
Country | Link |
---|---|
US (1) | US6202459B1 (de) |
EP (1) | EP1018376A3 (de) |
DE (1) | DE19900428A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006013921A1 (de) * | 2006-03-25 | 2007-09-27 | Sms Meer Gmbh | Verfahren zum Walzen eines Drahts und Drahtstraße |
EP2014380A1 (de) * | 2007-06-11 | 2009-01-14 | ArcelorMittal France | Verfahren zum Walzen eines Metallstreifens mit Einstellung seiner Seitenposition und entsprechendes Walzwerk |
BRPI1013747B1 (pt) * | 2009-05-06 | 2020-10-27 | Primetals Technologies Germany Gmbh | método para fabricar um estoque de laminação laminado em um trem laminador de uma usina de laminação e usina de laminação |
US20110158767A1 (en) * | 2009-12-29 | 2011-06-30 | Ohio Rod Products | Reduced material, content fasteners and systems and methods for manufacturing the same |
ITMI20120057A1 (it) * | 2012-01-20 | 2013-07-21 | Danieli Off Mecc | Gabbia di laminazione con rulli di lavoro sghembi con dispositivo di precarico dei rulli |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3402254A1 (de) * | 1983-02-25 | 1984-08-30 | Mitsubishi Denki K.K., Tokio/Tokyo | Walzstrasse |
US4860564A (en) * | 1987-09-21 | 1989-08-29 | United Engineering, Inc. | Method and apparatus for taper rolling control for a rolling mill |
EP0972581A2 (de) * | 1998-07-14 | 2000-01-19 | Sms Schloemann-Siemag Aktiengesellschaft | Walzverfahren für stabförmiges Walzgut, insbesondere Stabstahl oder Draht |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4583384A (en) * | 1981-09-30 | 1986-04-22 | Mitsubishi Denki Kabushiki Kaisha | Control device for continuous rolling machine |
JPS61159217A (ja) * | 1984-12-29 | 1986-07-18 | Asahi Chem Ind Co Ltd | 線材の高速伸線設備 |
US4607511A (en) * | 1985-04-26 | 1986-08-26 | Morgan Construction Company | Tension prefinishing with sizing stands |
JPH02197310A (ja) * | 1989-01-24 | 1990-08-03 | Mitsubishi Electric Corp | 連続圧延機の制御方法 |
CN1040073C (zh) * | 1989-12-25 | 1998-10-07 | 石川岛播磨重工业株式会社 | 轧机的板厚控制系统 |
DE4117054A1 (de) * | 1991-05-22 | 1992-11-26 | Mannesmann Ag | Sizing-geruest gruppe |
DE19622825B4 (de) * | 1996-06-07 | 2005-03-31 | Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH | Voreinstellung für Kaltwalzreversiergerüst |
-
1999
- 1999-01-08 DE DE19900428A patent/DE19900428A1/de not_active Withdrawn
- 1999-12-11 EP EP99124714A patent/EP1018376A3/de not_active Withdrawn
-
2000
- 2000-01-07 US US09/479,609 patent/US6202459B1/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3402254A1 (de) * | 1983-02-25 | 1984-08-30 | Mitsubishi Denki K.K., Tokio/Tokyo | Walzstrasse |
US4860564A (en) * | 1987-09-21 | 1989-08-29 | United Engineering, Inc. | Method and apparatus for taper rolling control for a rolling mill |
EP0972581A2 (de) * | 1998-07-14 | 2000-01-19 | Sms Schloemann-Siemag Aktiengesellschaft | Walzverfahren für stabförmiges Walzgut, insbesondere Stabstahl oder Draht |
Also Published As
Publication number | Publication date |
---|---|
EP1018376A3 (de) | 2002-12-18 |
DE19900428A1 (de) | 2000-07-13 |
US6202459B1 (en) | 2001-03-20 |
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