ZA200308881B - Cold rolling mill and method for cold roll forming a metallic strip. - Google Patents
Cold rolling mill and method for cold roll forming a metallic strip. Download PDFInfo
- Publication number
- ZA200308881B ZA200308881B ZA200308881A ZA200308881A ZA200308881B ZA 200308881 B ZA200308881 B ZA 200308881B ZA 200308881 A ZA200308881 A ZA 200308881A ZA 200308881 A ZA200308881 A ZA 200308881A ZA 200308881 B ZA200308881 B ZA 200308881B
- Authority
- ZA
- South Africa
- Prior art keywords
- strip
- frame
- cold rolling
- mill
- rolling
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005097 cold rolling Methods 0.000 title claims description 28
- 238000005096 rolling process Methods 0.000 claims abstract description 29
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims abstract 6
- 238000003860 storage Methods 0.000 claims description 12
- 238000012937 correction Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
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
- B21B37/48—Tension control; Compression control
- B21B37/50—Tension control; Compression control by looper 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
- B21B37/48—Tension control; Compression control
- B21B37/52—Tension control; Compression control by drive motor control
- B21B37/54—Tension control; Compression control by drive motor control including coiler drive control, e.g. reversing 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
- B21B37/24—Automatic variation of thickness according to a predetermined programme
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
- B21B39/08—Braking or tensioning arrangements
-
- 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
- B21B1/30—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 in a non-continuous process
- B21B1/32—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 in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
- B21B1/36—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 in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by cold-rolling
-
- 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
- B21B2037/002—Mass flow control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
Abstract
The invention relates to a method for cold roll forming a metallic strip (8), a steel strip in particular, comprising a single fame (1), having means for adjusting a roll gap, a winding device (9) which is arranged upstream of the cold roll single frame for unwinding the strip (8), and a winding device (10) which is arranged downstream of the cold roll single frame (1) for winding the strip (8). The aim of the invention is to eliminate all problems connected to strip tension when the thickness of the strip varies and to increase the speed of the strip. To achieve this, a strip accumulator (2) is arranged between the upstream winding device (9) and the single frame (1) for controlling the mass flow and/or tension of the rolling process, particularly when flexible rollers are used.
Description
“ 22714 Transl. of PCT/EP02/07689
TRANSLATION
COLD ROLLING MILL AND METHOD OF COLD ROLLING METAL STRIP
The invention relates to a cold rolling mill and to a method of cold rolling metal strip, especially steel strip, with a ) single-frame rolling mill with means for adjusting a rolling gap and a coiler device upstream of the cold rolling mill frame for uncoiling the strip fed to the mill. :
In previously known cold rolling with single frame mills, only incoming strip with a narrow thickness tolerance can be used and the strip thickness reduction is maintained constant over the strip length. To the extent that these requirements cannot be met, the strip speed is greatly limited and problems have to be expected with respect to the rolling operation. :
In WO 99/55474 a Steckel rolling mill is described for hot rolling, having at least one reversible rolling mill frame as well as coilers disposed upstream and downstream thereof. Between the coilers and the reversing mill frame, respective loop lifters are provided which supply actual values for a tension control and a mass flow control. Such a Steckel rolling mill, however, relates
K) 22714 Transl. of PCT/EP02/07689 to hot rolling mills and, therefore, not to any cold rolling process.
Starting from the background of cold rolling technology, the invention has as its object to provide a method of cold rolling as well as a cold rolling mill with a single-frame mill and which in spite of changes in the strip thickness and large strip speeds does not have any problems with respect to the mass flow and/or the strip tension. :
These objects are achieved with a cold rolling mill with the features of claim 1 as well as by a method with the features of claim 3. Advantageous further developments are described in the dependent claims. :
According to the invention it is proposed that between the upstream coiler and the single mill frame for the cold rolling, a strip storage is disposed for a mass flow regulation and/or a stripper tension regulation of the rolling process, especially in the case of flexible rolling.
Because of the strip storage in the strip travel direction upstream of the single mill frame, mass flow changes or strip speed changes which have their origins in a variation in the strip thickness or a variation in the strip thickness pattern in. flexible rolling are compensated. This has the advantage that a kK) . 22714 Transl. of PCT/EP02/07689 rolling remains possible at higher speeds even in the case of changing strip thicknesses or strip thicknesses which sequentially follow one another.
The speed changes because of changes in the strip thicknesses in the rolling gap are greatest at the inlet side of the single mill frame so that the strip storage dccording to the invention is provided at least at the inlet side or in the inlet region. Since the detriment caused by changes in the strip thickness pattern in the case of flexible rolling occur as well, although they are not as great, at the outlet side and are reflected in changes in the strip speed at the outlet side in a preferred embodiment of the invention, it is also proposed to dispose a strip storage at the outlet side of the single mill frame.
Preferably each of the strip storages has a dancer roller. A dancer roller or a dancer roller arrangement includes a roller which is pressed with a certain force against the strip and which is adjustable within a certain angle so that a loop is formed in the strip around the dancer roller and such that the loop length varies with the position of the roller. In this manner more or less of the strip can be stored. According to a preferred embodiment of the invention, a respective dancer roller is provided both at the inlet and at the outlet regions of the single mill frame and both are advantageously of identical construction.
22714 Transl. of PCT/EP02/07689
The proposed method is described in detail with the aid of the following Figures in which the individual Figures show:
FIG. 1 a layout of an apparatus of an embodiment of a cold rolling frame according to the invention with flexible cold rolling with respective dancer rollers at the inlet and outlet regions; .
FIG. 2 a detailed elevation of the dancer roller as well as a preferred embodiment of its positioning and control; + FIG. 3 an overview of the strip tension and mass flow control circuits with flexible cold rolling using a single frame mill;
FIG. 4 an overview of the strip thickness control circuit in combination with the strip tension control as well as a compensation of the mass flow faults with flexible cold rolling with a single frame mill. ~
FIG. 1 provides an overall view of an apparatus having a single frame cold rolling mill 1 with strip storage 2, 3 at both the inlet region (4) and the outlet region (5) of the single frame mill 1 and each of which encompasses a dancer roller 6, 7. The coiled up strip 8 is uncoiled with the aid of a coiling device 9 and is fed into the rolling frame 1 in the direction of the arrow.
N
22714 . Transl. of PCT/EP02/07689
After traversing the single frame mill 1, the strip is coiled up by means of a second coiler 10. In each of the inlet regions (4) and the outlet regions (5), a respective dancer roller 6, 7 is provided, the dancer coilers being of identical construction and have been illustrated in detail in FIG. 2 with other adjustability.
The single frame mill 1 itself is comprised, in the illustrated embodiment, of two backup rolls 11, two intermediate rolls 12 and the working rolls 13, 14. Any other arrangement of rolls in a single frame can also be used. Between the roll frame 1 and the dancer rolls 6, 7, for example at the outlet side 5, a marking device 15 can be arranged in the strip line.
FIG. 2 shows the mechanism and control of a dancer roller 6 with a flexible cold rolling. With the aid of the adjustment of the dancer roll on the strip 8 with respect to two neighboring rollers 16, 17, a loop is formed inteh striper 8 with a loop length which changes with the position of the dancer roller 6 or its angular setting with respect to the roller 16. The deeper the dancer roller 6 penetrates into the strip 8, the more of the strip which is stored. The illustrated embodiment shows a hydraulic adjustment 18 for the dancer roller 6.
The dancer roller 6 is associated with a force controller 19. For this control, an actual force value as well as an actual angle value of the positioning of the dancer roller 6 are obtained.
This actual force value is supplied to the force controller 19
22714 Transl. of PCT/EP02/07689 together with a force setpoint value. In this case, the force setpoint value is not predetermined but rather is calculated from the measured actual angle value and a predetermined setpoint tension. The force control circuit provides, as a result of the comparison of the setpoint and actual force values, a force correction value which is applied to the positioning unit 18, here a hydraulic piston and cylinder unit for the dancer roller 6. By means of the force correction, a correction of the tension developed by the strip in traction is achieved.
The actual angle value measured at the dancer roller is also used for the control of the rotary speed setting of the coiler devices (9, 10) and thus torque control of the coilers for mass SR flow control. For this purpose the actual angle value as well as a predetermined setpoint angle are fed to an angle controller. As a function of the result of the setpoint-actual value comparison, an angle correction value is calculated. This angle correction value serves for control of the speed in the coiler devices for mass flow control.
An overview of this strip tension control and mass flow control by means of the dancer rollers 6, 7 at the inlet and outlet regions (4, 5) of a cold rolling frame 1 has been shown in FIG. 3.
The strip tension control is effected by calculating a setpoint force for controlling the hydraulic setting of the dancer roller, .
22714 Transl. of PCT/EP02/0768S starting from the actual force value while the mass flow control results from control of the speed of the coilers.
In the control circuit for coiler speed, that is the uncoiler speed or the recoiler speed, the setpoint value is the strip speed. This also serves as a setpoint for the roll speed control. .
With the aid of FIG. 4, the strip thickness control has been shown in the case of flexible rolling. A flexible rolling process means that there will be a change in the rolling gap in the course of rolling and thus an valuation in strip thickness patterns over the strip length. A setpoint strip thickness pattern is predetermined. This setpoint value of the course of the strip thickness is used for initial control of the inlet side dancer roller. From the setpoint course of the strip thickness, the change in the inlet speed of the strip in the rolling mill frame is calculated together with the strip tension required for it to maintain a constant strip tension. For mass flow compensation, the inlet tension can be further smoothed out. Additionally the values of the setpoint strip thickness course can be supplied to a thickness controller which with the aid of actual strip thickness values obtained at the inlet and outlet side, corrections and values for the strip thickness can be calculated, these correction values further supplied to a position controller which controls the rolling gap setting in the cold rolling frame.
Claims (1)
- 22714 Transl. of PCT/EP02/07689 Patent Claims:1 1. A cold rolling mill for the cold rolling metallic : 2 strip (8), especially steel, with a single-frame mill (1) with 3 means for adjusting a rolling gap as well as a coiler device (9) 4 upstream of the single-frame cold rolling mill for unwinding the strip (8) of the single-frame cold rolling mill for unwinding the 6 strip (8) and a coiling device (10) downstream of the single-frame 7 cold rolling mill (1) for winding up the strip (8), characterized 8 in that between the upstream coiling device (9) and the single 9 frame rolling mill (1) a strip storage (2) is arranged for a mass flow control and/or strip tension control of the rolling process, 11 especially in the case of flexible rolling.1 2. A cold rolling mill according to claim 1, 2 characterized in that in addition to the first strip storage (2) 3 arranged between the upstream coiler device (9) and the single frame mill (1), a second strip storage (3) is arranged between the 5 single frame mill (1) and the downstream coiler device (10).1 3. A method of cold rolling a metal strip (8) especially 2 of steel, in a cold rolling mill with a single frame (1) with means 3 for adjusting a rolling gap for the cold rolling of the strip as 4 well as a coiler device (9) arranged upstream of the single frame 5 (1) for unwinding the strip (8) and a coiler device (10) downstream22714 Transl. of PCT/EP02/07689 6 of the single frame (1) for winding up the strip (2), characterized © 7 in that by means of the single frame (1) a rolling, especially a 8 flexible rolling is carried out in which the strip thickness during 9 the rolling is continuously changed in accordance with a 10 predetermined pattern and that by means of a strip storage (2) 11 which is arranged between the upstream coiler device (9) and the 12 single frame mill (1) a mass flow control and/or a strip tension 13 control of the rolling process is effected. : a1 4. The method according to claim 3, characterized in 2 that the coiler devices (9, 10) are speed-controlled coiler 3 devices. :1 5. The method according to claims 3 or 4, characterized 2 in that in a control circuit for the control of the position of the 3 _ strip storage (2, 3), especially of a dancer roller (6, 7), a force 4 correction value is calculated by means of a force controller from an actual force value and a setpoint force value obtained from the . positioning unit (18) whereby the setpoint force value is 7 calculated from an actual angle value derived from the dancer : 8 roller and a predetermined setpoint tension value. 1 [6] The method according to one of claims 3 to 5, 2 characterized in that the strip storage (2, 3) is controlled as a 3 function of a known variation in the strip thickness pattern.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10133756A DE10133756A1 (en) | 2001-07-11 | 2001-07-11 | Cold rolling mill and method for cold rolling metallic strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200308881B true ZA200308881B (en) | 2004-02-20 |
Family
ID=7691436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200308881A ZA200308881B (en) | 2001-07-11 | 2003-11-14 | Cold rolling mill and method for cold roll forming a metallic strip. |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US20040177666A1 (en) |
| EP (1) | EP1406735B1 (en) |
| JP (1) | JP2005500163A (en) |
| KR (1) | KR20040014541A (en) |
| CN (1) | CN1283380C (en) |
| AT (1) | ATE288798T1 (en) |
| BR (1) | BR0209768A (en) |
| CA (1) | CA2453297A1 (en) |
| CZ (1) | CZ20033418A3 (en) |
| DE (2) | DE10133756A1 (en) |
| ES (1) | ES2235086T3 (en) |
| RU (1) | RU2293616C2 (en) |
| TW (1) | TW587965B (en) |
| WO (1) | WO2003008122A1 (en) |
| ZA (1) | ZA200308881B (en) |
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| DE10310399B4 (en) * | 2003-03-07 | 2005-03-03 | Sundwig Gmbh | Apparatus and method for rolling metal strips |
| DE10315357B4 (en) * | 2003-04-03 | 2005-05-25 | Muhr Und Bender Kg | Process for rolling and rolling plant for rolling metal strip |
| AT502723B1 (en) * | 2004-07-07 | 2008-08-15 | Voest Alpine Ind Anlagen | METHOD AND DEVICE FOR REDUCING VIBRATIONS IN A SLIDING ROLLER |
| DE102004041321A1 (en) | 2004-08-26 | 2006-03-02 | Sms Demag Ag | Rolling mill for rolling metallic strip |
| EP1893361A1 (en) * | 2005-05-11 | 2008-03-05 | Corus Staal BV | Method and apparatus for producing strip having a variable thickness |
| DE102005031461A1 (en) * | 2005-07-04 | 2007-01-11 | Bilstein Gmbh & Co. Kg | Method for producing micro alloyed cold rolled strip with varying thickness by two rolling and tempering processes |
| JP4714548B2 (en) * | 2005-10-11 | 2011-06-29 | 新日本製鐵株式会社 | Wet temper rolling method and rolling mill |
| DE102006047463A1 (en) * | 2006-10-07 | 2008-04-17 | ACHENBACH BUSCHHüTTEN GMBH | Rolling mill and method for flexible cold or hot one-way or reverse rolling of metal strip |
| CN100428098C (en) * | 2006-10-19 | 2008-10-22 | 山西太钢不锈钢股份有限公司 | Coiling variable tension control technology for 300 series stainless steel |
| CN100566867C (en) * | 2006-12-21 | 2009-12-09 | 宝山钢铁股份有限公司 | Control method of cold calender einlaufbereich |
| DE102008049180A1 (en) * | 2008-09-26 | 2010-04-01 | Sms Siemag Aktiengesellschaft | Rolling mill for rolling strip-shaped rolling stock |
| CN101817022B (en) * | 2010-05-11 | 2012-05-23 | 唐山建龙实业有限公司 | Method for compensating coiling tension of medium-width steel belt formed by cold continuous rolling |
| KR101148536B1 (en) * | 2010-07-26 | 2012-05-21 | 이도희 | Method of manufacturing a promotion tab end for a can |
| CN102139282B (en) * | 2010-12-10 | 2012-10-24 | 西南铝业（集团）有限责任公司 | Cold rolling machine |
| CN102320000B (en) * | 2011-07-08 | 2013-01-30 | 邢台纳科诺尔极片轧制设备有限公司 | Rolling and slitting system for battery plate |
| CN103717322B (en) * | 2011-08-08 | 2016-09-28 | 首要金属科技奥地利有限责任公司 | Rolling equipment and the method for rolling |
| CN102527717A (en) * | 2012-01-06 | 2012-07-04 | 无锡华精新型材料有限公司 | Cold-rolling method for increasing cold-rolling yield of oriented silicon steel strip |
| CN102847724B (en) * | 2012-08-31 | 2015-03-04 | 安徽精诚铜业股份有限公司 | Edging roll device of rolling mill |
| CN103433297B (en) * | 2013-08-22 | 2015-04-15 | 攀钢集团攀枝花钢钒有限公司 | Tension stable control device for skin pass mill |
| CN103639207B (en) * | 2013-12-19 | 2015-12-02 | 西南铝业（集团）有限责任公司 | A kind of thick control method of second flow of single stand four-roller high-speed cold mill and system |
| JP6438753B2 (en) * | 2014-12-05 | 2018-12-19 | 株式会社日立製作所 | Tandem rolling mill control device and tandem rolling mill control method |
| CN105772512B (en) * | 2014-12-23 | 2018-04-27 | 宝山钢铁股份有限公司 | Tension stability method during Varying Thickness Plates coil rolling |
| DK3097992T3 (en) * | 2015-05-29 | 2017-08-21 | Giebel Kaltwalzwerk Gmbh | PROCEDURE FOR STEP COLLECTION OF A METAL TAPE |
| CN107662835A (en) * | 2017-10-26 | 2018-02-06 | 天津天重中直科技工程有限公司 | A kind of strip automatic clip distribution apparatus |
| EP3610961B1 (en) * | 2018-08-15 | 2023-04-19 | Muhr und Bender KG | Device, rolling mill and method for regulating strip tension during the flexible rolling of metal strips |
| WO2020093259A1 (en) * | 2018-11-07 | 2020-05-14 | 武汉天琪激光设备制造有限公司 | Combined central support for laser cutting pipe |
| DE102019215265A1 (en) * | 2018-12-06 | 2020-06-10 | Sms Group Gmbh | Method for operating a roll stand for step rolling |
| CN112474800A (en) * | 2020-10-21 | 2021-03-12 | 南京钢铁股份有限公司 | Method for producing narrow thickness tolerance X12Ni5 steel by single-stand steckel mill |
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| US3961510A (en) * | 1975-07-11 | 1976-06-08 | Wean United, Inc. | Tension device for a rolling mill and the like |
| DE2605723C2 (en) * | 1976-02-13 | 1982-09-09 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg | Control device on a cold roll stand arranged between sets of tensioning rollers in a continuously running strip processing line |
| JPS60231516A (en) * | 1984-04-28 | 1985-11-18 | Sumitomo Metal Ind Ltd | Coiler having looper mechanism |
| JPH05169126A (en) * | 1991-12-26 | 1993-07-09 | Siemens Ag | Method for controlling cold strip rolling mill |
| US5285670A (en) * | 1992-10-15 | 1994-02-15 | Tippins Incorporated | Pinch roll and shear combination |
| US5540074A (en) * | 1994-12-07 | 1996-07-30 | Ipsco Enterprises Inc. | Unitary assembly of peripheral devices for use with steckel mill |
| DE19514475A1 (en) * | 1995-04-19 | 1996-10-24 | Schloemann Siemag Ag | Steckel rolling mill |
| US5660070A (en) * | 1996-03-18 | 1997-08-26 | Carolina Steel Corporation | Cold rolling mill with tension bridle |
| DE19818207C2 (en) * | 1998-04-23 | 2000-05-31 | Schloemann Siemag Ag | Steckel hot rolling mill |
| DE19945202A1 (en) * | 1999-09-21 | 2001-03-22 | Bfi Vdeh Inst Angewandte Forschung Gmbh | Method and device for rolling or winding tape |
-
2001
- 2001-07-11 DE DE10133756A patent/DE10133756A1/en not_active Withdrawn
-
2002
- 2002-06-20 TW TW091113465A patent/TW587965B/en not_active IP Right Cessation
- 2002-07-10 CA CA002453297A patent/CA2453297A1/en not_active Abandoned
- 2002-07-10 DE DE50202231T patent/DE50202231D1/en not_active Revoked
- 2002-07-10 CZ CZ20033418A patent/CZ20033418A3/en unknown
- 2002-07-10 CN CNB028140036A patent/CN1283380C/en not_active Expired - Fee Related
- 2002-07-10 KR KR10-2003-7015711A patent/KR20040014541A/en not_active Application Discontinuation
- 2002-07-10 US US10/483,706 patent/US20040177666A1/en not_active Abandoned
- 2002-07-10 BR BR0209768-0A patent/BR0209768A/en not_active IP Right Cessation
- 2002-07-10 EP EP02767196A patent/EP1406735B1/en not_active Revoked
- 2002-07-10 RU RU2004103859/02A patent/RU2293616C2/en not_active IP Right Cessation
- 2002-07-10 AT AT02767196T patent/ATE288798T1/en not_active IP Right Cessation
- 2002-07-10 WO PCT/EP2002/007689 patent/WO2003008122A1/en not_active Application Discontinuation
- 2002-07-10 ES ES02767196T patent/ES2235086T3/en not_active Expired - Lifetime
- 2002-07-10 JP JP2003513719A patent/JP2005500163A/en not_active Withdrawn
-
2003
- 2003-11-14 ZA ZA200308881A patent/ZA200308881B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ATE288798T1 (en) | 2005-02-15 |
| WO2003008122A1 (en) | 2003-01-30 |
| EP1406735B1 (en) | 2005-02-09 |
| CN1527750A (en) | 2004-09-08 |
| TW587965B (en) | 2004-05-21 |
| US20040177666A1 (en) | 2004-09-16 |
| EP1406735A1 (en) | 2004-04-14 |
| RU2293616C2 (en) | 2007-02-20 |
| WO2003008122A8 (en) | 2004-10-07 |
| RU2004103859A (en) | 2005-05-10 |
| DE10133756A1 (en) | 2003-01-30 |
| DE50202231D1 (en) | 2005-03-17 |
| CA2453297A1 (en) | 2003-01-30 |
| BR0209768A (en) | 2004-07-27 |
| JP2005500163A (en) | 2005-01-06 |
| KR20040014541A (en) | 2004-02-14 |
| CN1283380C (en) | 2006-11-08 |
| ES2235086T3 (en) | 2005-07-01 |
| CZ20033418A3 (en) | 2004-12-15 |
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