EP0936002B1 - Walzverfahren für ein Band, insbesondere ein Metallband - Google Patents
Walzverfahren für ein Band, insbesondere ein Metallband Download PDFInfo
- Publication number
- EP0936002B1 EP0936002B1 EP99102576A EP99102576A EP0936002B1 EP 0936002 B1 EP0936002 B1 EP 0936002B1 EP 99102576 A EP99102576 A EP 99102576A EP 99102576 A EP99102576 A EP 99102576A EP 0936002 B1 EP0936002 B1 EP 0936002B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- rolling
- thickness
- roll
- stand
- 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.)
- Expired - Lifetime
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims description 11
- 239000002184 metal Substances 0.000 title claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims description 14
- 238000005098 hot rolling Methods 0.000 claims description 5
- 238000005097 cold rolling Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003466 welding 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
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
- B21B37/24—Automatic variation of thickness according to a predetermined programme
- B21B37/26—Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness
Definitions
- Such a rolling process is for example from DE 29 44 035 C2 known.
- the object of the present invention is a method state at which the impact on the Rolling process when changing the strip thickness as short a transition area as possible accrues.
- the object is achieved in that the changes in the nominal thickness values in the possible one downstream of the rolling stand Roll stands in such a way that for each of these roll stands Quotient of its current thickness setpoint and its current one Target inlet thickness is a constant.
- the peculiarity of the rolling process is that only in a change in the first rolling stand rolling the change in thickness relative thickness decrease occurs in all subsequent rolling stands however the relative decrease always remains constant. This will minimizes the mass flow disturbance between the mill stands, and it is no or only a very slight adjustment of the speeds of the Roll stands required. Thus, the length of the transition area be kept very short.
- Roll stands Due to the constant relative decrease in stitch in the following Roll stands are of course also their target thickness values possibly changed in a ramp shape. With a desired change in thickness behind the last rolling stand can also be this relationship between the thickness setpoints all other changes the target thickness values in the upstream rolling stands predict.
- a cold rolling mill consists, for example, of six rolling stands 1 to 6 arranged one behind the other.
- a steel strip 7 is rolled from an initial thickness d 0 to a final thickness d 6 .
- the strip 7 is first unwound from a decoiler 8, then passes through a strip store 9 and is then threaded into the rolling train. After the rolling mill, the strip 7 is wound up on a reel 10. During the rolling of the strip 7, the strip 7 should run into each of the roll stands 1 to 6 with a nominal inlet thickness e 1 * to e 6 * according to a rolling schedule. Each of the roll stands 1 to 6 is also given a target thickness value a 1 * to a 6 * with which the strip 7 is to run out of the respective roll stand 1 to 6.
- the strip store 9 between the uncoiler 8 and the first roll stand 1 is used to store a certain amount of tape 7. So can cause short disruptions when unwinding or welding on new belt 11 to a belt already entering the rolling mill 7 can be bridged without causing the rolling mill to stop comes.
- the new strip 11 applied has a different strip thickness d 0 than the currently rolled strip 7.
- the applied strip 11 is therefore subjected to different rolling conditions.
- a transition region 7 'must therefore be provided, in which the rolling conditions are adapted to the new strip 11.
- the nominal thickness value a 1 * of the first roll stand 1 is changed in a ramp-like manner from an initial nominal value to an end nominal value during the rolling of the transition region 7 'of the strip 7.
- the thickness setpoints a 2 * to a 6 * are also changed in a ramp from initial setpoints to end setpoints. The changes take place in each of the roll stands 2 to 6 at the point in time at which the transition region 7 'is rolled by the respective roll stand 2 to 6.
- the ramp-shaped changes in the target thickness values a 2 * to a 6 * take place in such a way that in each of the roll stands 2 to 6 the quotient of the current target thickness value a 2 * to a 6 * of this roll stand 2 to 6 and the current target Inlet thickness e 2 * to e 6 * of this roll stand 2 to 6 is a constant.
- changing the thickness setpoint can be limited to a part of the roll stands 1 to 6, e.g. B. on the last three roll stands 4 to 6.
- the thickness setpoints a 1 * to a 3 * of the roll stands 1 to 3 are kept constant, while the thickness setpoints a 4 * to a 6 * of the roll stands 4 to 6 can be changed in a ramp.
- a change in the relative pass reduction takes place only in the fourth roll stand 4. The relative pass decreases of the roll stands 5 and 6 remain constant. This case is shown in Figure 2.
- the control dynamics of the roll stands 1 to 6 allow it, even the nominal thickness values a 1 * to a 4 * or a 5 * of the roll stands 1 to 4 or 5 can be kept constant. In this case, only the thickness setpoints a 5 * and a 6 * of the last two roll stands 5, 6 or only the thickness setpoint a 6 * of the last roll stand 6 need to be changed from an initial setpoint to an end setpoint ,
- the method according to the invention can also be used in hot rolling mills.
- a hot rolling mill is shown in Figure 3.
- a descaler 12 and a compensating furnace 13 are arranged in front of the first roll stand 1.
- the slab 14 is heated through before being introduced into the hot rolling mill and, if necessary, also temporarily stored.
- the slab 14 is to be rolled into two or three strips with different final thicknesses a 6 *.
- the individual strips are then separated behind the last roll stand 6 by means of a pair of scissors 15 and alternately wound onto one of the reels 10, 10 '.
Description
- wobei während des Walzens des Bandes dieses in jedes der Walzgerüste mit einer Soll-Einlaufdicke einlaufen soll und jedem der Walzgerüste ein Dicken-Sollwert vorgegeben wird, mit dem das Band aus dem jeweiligen Walzgerüst auslaufen soll,
- wobei während des Walzens eines Übergangsbereichs des Bandes der Dicken-Sollwert eines der Walzgerüste von einem Anfangsauf einen End-Sollwert geändert wird,
- wobei in etwaigen dem einen Walzgerüst nachgeordneten Walzgerüsten während des Walzens des Übergangsbereichs des Bandes deren Dicken-Sollwerte ebenfalls von Anfangs- in End-Sollwerte geändert werden.
- Figur 1
- eine sechsgerüstige Kaltwalzstraße,
- Figur 2
- einen Dicken-Sollwertverlauf für die letzten drei Walzgerüste und
- Figur 3
- eine sechsgerüstige Warmwalzstraße.
- 1 - 6
- Walzgerüste
- 7
- Band
- 7'
- Übergangsbereich
- 8
- Abhaspel
- 9
- Bandspeicher
- 10, 10'
- Aufhaspel
- 11
- neues Band
- 12
- Entzunderer
- 13
- Ausgleichsofen
- 14
- Bramme
- 15
- Schere
- a1* - a6*
- Dicken-Sollwerte
- d0
- Anfangsdicke
- d6
- Enddicke
- e1* - e6*
- Soll-Einlaufdicken
Claims (6)
- Walzverfahren für ein Band (7), insbesondere ein Metallband (7), zum Beispiel ein Stahlband (7), in einer Walzstraße mit mehreren hintereinander angeordneten Walzgerüsten (1 bis 6),wobei während des Walzens des Bandes (7) dieses in jedes der Walzgerüste (1 bis 6) mit einer Soll-Einlaufdicke (e1* bis e6*) einlaufen soll und jedem der Walzgerüste (1 bis 6) ein Dicken-Sollwert (a1* bis a6*) vorgegeben wird, mit dem das Band (7) aus dem jeweiligen Walzgerüst (1 bis 6) auslaufen soll,wobei während des Walzens eines Übergangsbereichs (7') des Bandes (7) der Dicken-Sollwert (zum Beipiel a4*) eines der Walzgerüste (zum Beispiel 4) von einem Anfangs- auf einen End-Sollwert geändert wird,wobei in etwaigen dem einen Walzgerüst (zum Beispiel 4) nachgeordneten Walzgerüsten (zum Beispiel 5, 6) während des Walzens des Übergangsbereichs (7') des Bandes (7) deren Dicken-Sollwerte (zum Beispiel a5*, a6*) ebenfalls von Anfangs- in End-Sollwerte geändert werden,wobei die Änderungen der Dicken-Sollwerte (zum Beispiel a5*, a6*) in den etwaigen dem einen Walzgerüst (zum Beispiel 4) nachgeordneten Walzgerüsten (zum Beispiel 5, 6) derart erfolgt, daß für jedes dieser Walzgerüste (zum Beispiel 5, 6) der Quotient aus dessen momentanen Dicken-Sollwert (zum Beispiel a5*, a6*) und dessen momentaner Soll-Einlaufdicke (zum Beispiel e5*, e6*) eine Konstante ist.
- Walzverfahren nach Anspruch 1,
dadurch gekennzeichnet, daß der Dicken-Sollwert (zum Beispiel a4*) des einen Walzgerüsts (zum Beispiel 4) während des Walzens des Übergangsbereichs (7') des Bandes (7) rampenförmig geändert wird. - Walzverfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß dem einen Walzgerüst (zum Beispiel 5) mindestens ein Walzgerüst (zum Beispiel 6) nachgeordnet ist. - Walzverfahren nach Anspruch 3,
dadurch gekennzeichnet, daß das eine Walzgerüst (1) das erste Walzgerüst (1) der Walzstraße ist. - Walzverfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß es bei einem Warmwalzwerk angewendet wird. - Walzverfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß es bei einem Kaltwalzwerk angewendet wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19806161A DE19806161A1 (de) | 1998-02-14 | 1998-02-14 | Walzverfahren für ein Band, insbesondere ein Metallband |
DE19806161 | 1998-02-14 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0936002A2 EP0936002A2 (de) | 1999-08-18 |
EP0936002A3 EP0936002A3 (de) | 2001-01-03 |
EP0936002B1 true EP0936002B1 (de) | 2003-10-22 |
Family
ID=7857778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99102576A Expired - Lifetime EP0936002B1 (de) | 1998-02-14 | 1999-02-11 | Walzverfahren für ein Band, insbesondere ein Metallband |
Country Status (5)
Country | Link |
---|---|
US (1) | US6035684A (de) |
EP (1) | EP0936002B1 (de) |
AT (1) | ATE252424T1 (de) |
DE (2) | DE19806161A1 (de) |
ES (1) | ES2210871T3 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19950609C2 (de) * | 1999-10-21 | 2001-10-18 | Bwg Bergwerk Walzwerk | Verfahren zum Reduzieren der Schrottlänge beim Walzen von mittels Schweißnähten verbundener Metallbänder und Tandemstraße zur Durchführung des Verfahrens |
US20090273135A1 (en) * | 2008-05-05 | 2009-11-05 | Bowe Bell + Howell Scanners L.L.C. | Feeder system with independent control of rollers |
JP6628049B2 (ja) * | 2017-04-07 | 2020-01-08 | Jfeスチール株式会社 | タンデム圧延機における走間板厚変更方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4936548B1 (de) * | 1970-03-16 | 1974-10-01 | ||
US3807206A (en) * | 1972-09-29 | 1974-04-30 | J Connors | Strip gage change during rolling in a tanden rolling mill |
JPS5561306A (en) * | 1978-11-01 | 1980-05-09 | Mitsubishi Electric Corp | Changing system for rolling schedule while running rolling stand |
JPS5666315A (en) * | 1979-10-31 | 1981-06-04 | Sumitomo Metal Ind Ltd | Controlling method for sheet thickness in strip mill |
JPS60148621A (ja) * | 1984-01-13 | 1985-08-05 | Kawasaki Steel Corp | タンデム圧延機の走間板厚変更方法 |
JPH05200420A (ja) * | 1992-01-28 | 1993-08-10 | Toshiba Corp | マットロール圧延用板厚制御装置 |
DE19505694C1 (de) * | 1995-02-20 | 1996-07-04 | Siemens Ag | Einrichtung zur Dickenregelung von Walzgut |
KR100241167B1 (ko) * | 1995-04-18 | 2000-03-02 | 에모토 간지 | 연속열간압연에 있어서의 강편접합부의 압연방법 |
-
1998
- 1998-02-14 DE DE19806161A patent/DE19806161A1/de not_active Withdrawn
-
1999
- 1999-02-10 US US09/247,456 patent/US6035684A/en not_active Expired - Fee Related
- 1999-02-11 ES ES99102576T patent/ES2210871T3/es not_active Expired - Lifetime
- 1999-02-11 AT AT99102576T patent/ATE252424T1/de active
- 1999-02-11 DE DE59907404T patent/DE59907404D1/de not_active Expired - Lifetime
- 1999-02-11 EP EP99102576A patent/EP0936002B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6035684A (en) | 2000-03-14 |
ATE252424T1 (de) | 2003-11-15 |
DE59907404D1 (de) | 2003-11-27 |
DE19806161A1 (de) | 1999-08-19 |
EP0936002A3 (de) | 2001-01-03 |
ES2210871T3 (es) | 2004-07-01 |
EP0936002A2 (de) | 1999-08-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1799368B1 (de) | Verfahren und vorrichtung zum kontinuierlichen herstellen eines dünnen metallbandes | |
EP1406735B1 (de) | Kaltwalzerk sowie verfahren zum kaltwalzen von metallischem band | |
EP0121148B1 (de) | Verfahren zum Herstellen von Walzband mit hoher Bandprofil- und Bandplanheitsgüte | |
EP0761326B1 (de) | Warmbandproduktionsanlage für das Walzen von dünnem Walzband | |
EP1519798B1 (de) | Verfahren und giesswalzanlage zum semi-endloswalzen oder endloswalzen durch giessen eines metalls insbesondere eines stahlstrangs, der nach dem erstarren bei bedarf quergeteilt wird | |
DE19514475A1 (de) | Steckel-Walzwerk | |
DE2944035A1 (de) | Verfahren zur aenderung eines walzplans | |
EP1456421B1 (de) | Verfahren und einrichtung zum kontrollierten richten und kühlen von aus einem warmband-walzwerk auslaufendem, breitem metallband, insbesondere von stahlband oder blech | |
DE3430034A1 (de) | Planheitsregelung an bandwalzgeruesten | |
EP0936002B1 (de) | Walzverfahren für ein Band, insbesondere ein Metallband | |
DE3240602A1 (de) | Verfahren zum regeln der zugspannungsverteilung beim kaltwalzen von baendern | |
DE10357622A1 (de) | Verfahren und Anlage zum Walzen von Walzgut | |
EP0761325A1 (de) | Verfahren und Anlage zur Herstellung von ferritisch warmgewalztem Band | |
DE19524729A1 (de) | Verfahren und Vorrichtung zum Walzen von Bändern mit über ihrer Breite ungleichförmige Dicken- und/oder Längenverteilung | |
DE2848727C2 (de) | Vorrichtung zur Regelung der Planheit bandförmigen Walzguts | |
EP1084004B1 (de) | Walzverfahren für ein metallband | |
AT409597B (de) | Verfahren und einrichtung zur verlaufsregelung eines walzbandes | |
EP3823771B1 (de) | Verfahren zum ermitteln von stellgrössen für aktive profil- und planheitsstellglieder für ein walzgerüst und von profil- und mittenplanheitswerten für warmgewalztes metallband | |
DE102004022334A1 (de) | Verfahren zum Walzen eines Walzgutes mit Übergangsbereich | |
DE19744504B4 (de) | Walzverfahren für Bandmaterial in einer Walzstraße | |
DE1958162A1 (de) | Verfahren zur Vorausregelung eines Tandemwalzwerkes | |
EP1192014B1 (de) | Verfahren und einrichtung zum walzen eines walzbandes mit variierender dicke | |
EP1040878B1 (de) | Verfahren und Einrichtung zum Walzen eines Metallbandes, insbesondere eines gespaltenen Metallbandes | |
EP0947265A2 (de) | Verfahren zum Stranggiessen und Fertigwalzen eines Giessstranges innerhalb einer vorgegebenen Fertigbreitentoleranz | |
DE19757486A1 (de) | Walzverfahren für ein Metallband |
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: 19990211 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE DE ES FI FR GB IT NL SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SMS DEMAG AG |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
AKX | Designation fees paid |
Free format text: AT BE DE ES FI FR GB IT NL SE |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
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 DE ES FI FR GB IT NL SE |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
REF | Corresponds to: |
Ref document number: 59907404 Country of ref document: DE Date of ref document: 20031127 Kind code of ref document: P |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20040126 |
|
ET | Fr: translation filed | ||
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2210871 Country of ref document: ES Kind code of ref document: T3 |
|
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: 20040723 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FI Payment date: 20110214 Year of fee payment: 13 Ref country code: NL Payment date: 20110216 Year of fee payment: 13 Ref country code: FR Payment date: 20110302 Year of fee payment: 13 Ref country code: IT Payment date: 20110221 Year of fee payment: 13 Ref country code: SE Payment date: 20110214 Year of fee payment: 13 Ref country code: DE Payment date: 20110218 Year of fee payment: 13 Ref country code: AT Payment date: 20110214 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20110222 Year of fee payment: 13 Ref country code: GB Payment date: 20110217 Year of fee payment: 13 Ref country code: BE Payment date: 20110211 Year of fee payment: 13 |
|
BERE | Be: lapsed |
Owner name: *SMS DEMAG A.G. Effective date: 20120228 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: V1 Effective date: 20120901 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20120211 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120212 Ref country code: FI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120211 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20121031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120211 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59907404 Country of ref document: DE Effective date: 20120901 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 252424 Country of ref document: AT Kind code of ref document: T Effective date: 20120211 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20120228 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120211 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120211 Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120901 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120229 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120901 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20130709 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120212 |