EP0839587A1 - Procédé pour laminer des tÔles fortes - Google Patents
Procédé pour laminer des tÔles fortes Download PDFInfo
- Publication number
- EP0839587A1 EP0839587A1 EP97118206A EP97118206A EP0839587A1 EP 0839587 A1 EP0839587 A1 EP 0839587A1 EP 97118206 A EP97118206 A EP 97118206A EP 97118206 A EP97118206 A EP 97118206A EP 0839587 A1 EP0839587 A1 EP 0839587A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- rolling
- stitch
- head
- pass
- 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.)
- Granted
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000009467 reduction Effects 0.000 claims abstract description 8
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 6
- 230000007423 decrease Effects 0.000 claims description 9
- 238000007620 mathematical function Methods 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 3
- 238000004886 process control Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001228 spectrum 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
- 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
- B21B1/222—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 rolling-drawing process; in a multi-pass mill
-
- 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
- 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
- B21B1/38—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 sheets of limited length, e.g. folded sheets, superimposed sheets, pack 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
- B21B37/58—Roll-force control; Roll-gap control
-
- 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
- B21B1/02—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 heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B1/026—Rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/02—Transverse dimensions
- B21B2261/04—Thickness, gauge
-
- 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
Definitions
- the invention is directed to a method for rolling heavy plates from a primary material in several successive work steps, with a different number "n" of passes in one or more rolling stands, preferably in a hot reversing stand, depending on the desired end product.
- the object is achieved with the measures of the characterizing part of claim 1 in a method for rolling heavy plates from a primary material in several successive work steps, with a different number "n" of passes in one or more rolling stands, preferably depending on the desired end product in a hot reversing stand, in that from the stitch n - k to the stitch n - 1 (where k is a count number that is in the range from 1 to n - 1), higher stitch decreases (smaller sheet thicknesses) are rolled at the strip head than at the end of the strip .
- the reduction in the number of passes from the strip head to the strip end - corresponding to the increase in the rolled sheet thickness from the strip head to the strip end - is constant, i. H. linear.
- the control of the required sheet thickness is possible in a particularly simple manner with the aid of the control systems.
- the difference in thickness between the strip head and the end of the strip is set according to the invention to a smaller amount with each subsequent pass, so that in accordance with the decrease in the average sheet thickness as a result of the rolling progress, the difference in thickness relative to sheet thickness remains approximately constant and, based on the sheet thickness, approximately is in the range of 1-5%.
- the measure according to the invention of increasing the sheet thickness from the strip head to the end of the strip starts from a stitch n - k, where k is a count from 1 to n - 1.
- the measure ends with the last stitch, in which the thickness difference from the previous stitch is equalized and a parallel band, the end product, is generated.
- FIG. 1 shows the entire rolling process with a total of eleven passes in a coordinate system with the rolling forces (RF) in 1,000 kN as the ordinate and the rolling time (t) in seconds as the abscissa.
- FIG. 2 shows the result of a rolling process according to the method of the invention under otherwise the same conditions as in the rolling process of FIG. 1.
- the temperature-related difference in rolling force between the strip head and the strip end is significantly reduced by increasing the stitch decrease on the strip head.
- This difference for the tenth stitch (10) is only 10,000 kN and for the last stitch (11) only 12,000 kN.
- the rolling force differences are reduced by approx. 50%.
- the maximum rolling force values for the last pass are also significantly lower than with the methods previously used, as the following comparison shows: Stitch no. k number maximum rolling force in kN previous author
- the invention 7 4th 48,500 49,000 8th 3rd 55,000 55,500 9 2nd 71,000 65,000 10th 1 76,000 65,000 11 0 63,000 55,000
- the strip in the last stitches, is rolled out with different thicknesses, specifically at the strip head with a smaller thickness, which then leads to the end of the strip increases linearly or non-linearly again according to a certain predetermined mathematical function, not only are the rolling force differences between the strip head and the strip end reduced, but also the maximum rolling forces per pass are reduced.
- this also has a particularly favorable effect on the service life of the wearing parts of the rolling mill and on the rolling energy requirement.
- the invention is not limited to the exemplary embodiment described in the drawing figures and also not applicable to rolling in reversing stands, but in general can also advantageously be used for rolling in multiple passes, which are carried out in succession, as well as for rolling in roughing and finishing lines.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19645497 | 1996-11-05 | ||
DE19645497A DE19645497A1 (de) | 1996-11-05 | 1996-11-05 | Verfahren zum Walzen von Grobblechen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0839587A1 true EP0839587A1 (fr) | 1998-05-06 |
EP0839587B1 EP0839587B1 (fr) | 2001-12-05 |
Family
ID=7810655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97118206A Expired - Lifetime EP0839587B1 (fr) | 1996-11-05 | 1997-10-21 | Procédé pour laminer des tôles fortes |
Country Status (12)
Country | Link |
---|---|
US (1) | US5943894A (fr) |
EP (1) | EP0839587B1 (fr) |
JP (1) | JP4263262B2 (fr) |
KR (1) | KR100517714B1 (fr) |
AT (1) | ATE209974T1 (fr) |
CA (1) | CA2220412C (fr) |
DE (2) | DE19645497A1 (fr) |
ES (1) | ES2169310T3 (fr) |
ID (1) | ID18570A (fr) |
MY (1) | MY123098A (fr) |
RU (1) | RU2203748C2 (fr) |
TW (1) | TW338728B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107377629A (zh) * | 2017-06-28 | 2017-11-24 | 秦皇岛首秦金属材料有限公司 | 一种中厚板轧机精轧阶段规程的分配方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1111576A (en) * | 1965-10-04 | 1968-05-01 | Algoma Steel Corp Ltd | Process for gauge control in hot rolled sheet and strip |
JPS5561311A (en) * | 1978-10-31 | 1980-05-09 | Kawasaki Steel Corp | Method and apparatus for controlling sheet thickness |
US4555922A (en) * | 1984-07-13 | 1985-12-03 | Tippins Machinery Company, Inc. | Adaptive strip wedge control for reversing mill |
US4860564A (en) * | 1987-09-21 | 1989-08-29 | United Engineering, Inc. | Method and apparatus for taper rolling control for a rolling mill |
SU1503902A1 (ru) * | 1987-04-24 | 1989-08-30 | Московский институт стали и сплавов | Способ реверсивной прокатки слитков из малопластичных сталей и сплавов |
GB2308083A (en) * | 1995-12-11 | 1997-06-18 | Encomech Eng Dev Ltd | Hot rolling strip |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1059144A (fr) * | 1952-06-05 | 1954-03-23 | Suermondt & Dumont | Dispositif permettant des déplacements égaux et simultanés des galets ou rouleaux d'entraînement de fils ou bandes métalliques |
SU942840A1 (ru) * | 1980-12-26 | 1982-07-15 | Производственное объединение "Новокраматорский машиностроительный завод" | Устройство дл автоматического регулировани межвалкового зазора при прокатке листа на клин |
JPS6061106A (ja) * | 1983-09-16 | 1985-04-08 | Kawasaki Steel Corp | 異厚鋼板の圧延方法 |
JPS60102208A (ja) * | 1983-11-07 | 1985-06-06 | Kawasaki Steel Corp | 板の可逆圧延方法 |
JPS63144815A (ja) * | 1986-12-09 | 1988-06-17 | Kobe Steel Ltd | リバ−ス圧延機による圧延方法 |
IT1224318B (it) * | 1988-05-26 | 1990-10-04 | Mannesmann Ag | Processo ed impianto per la produzione continua di nastro di acciaio |
JPH0399711A (ja) * | 1989-09-13 | 1991-04-24 | Kawasaki Steel Corp | 反り防止圧延方法 |
-
1996
- 1996-11-05 DE DE19645497A patent/DE19645497A1/de not_active Withdrawn
-
1997
- 1997-10-16 TW TW086115214A patent/TW338728B/zh active
- 1997-10-21 AT AT97118206T patent/ATE209974T1/de active
- 1997-10-21 EP EP97118206A patent/EP0839587B1/fr not_active Expired - Lifetime
- 1997-10-21 DE DE59705654T patent/DE59705654D1/de not_active Expired - Lifetime
- 1997-10-21 ES ES97118206T patent/ES2169310T3/es not_active Expired - Lifetime
- 1997-10-31 JP JP30082097A patent/JP4263262B2/ja not_active Expired - Fee Related
- 1997-11-03 CA CA002220412A patent/CA2220412C/fr not_active Expired - Fee Related
- 1997-11-03 MY MYPI97005188A patent/MY123098A/en unknown
- 1997-11-04 ID IDP973598A patent/ID18570A/id unknown
- 1997-11-04 RU RU97118327/02A patent/RU2203748C2/ru not_active IP Right Cessation
- 1997-11-04 US US08/963,703 patent/US5943894A/en not_active Expired - Lifetime
- 1997-11-05 KR KR1019970058117A patent/KR100517714B1/ko not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1111576A (en) * | 1965-10-04 | 1968-05-01 | Algoma Steel Corp Ltd | Process for gauge control in hot rolled sheet and strip |
JPS5561311A (en) * | 1978-10-31 | 1980-05-09 | Kawasaki Steel Corp | Method and apparatus for controlling sheet thickness |
US4555922A (en) * | 1984-07-13 | 1985-12-03 | Tippins Machinery Company, Inc. | Adaptive strip wedge control for reversing mill |
SU1503902A1 (ru) * | 1987-04-24 | 1989-08-30 | Московский институт стали и сплавов | Способ реверсивной прокатки слитков из малопластичных сталей и сплавов |
US4860564A (en) * | 1987-09-21 | 1989-08-29 | United Engineering, Inc. | Method and apparatus for taper rolling control for a rolling mill |
GB2308083A (en) * | 1995-12-11 | 1997-06-18 | Encomech Eng Dev Ltd | Hot rolling strip |
Non-Patent Citations (3)
Title |
---|
DATABASE WPI Section Ch Derwent World Patents Index; Class M21, AN 71-69205S, XP002056222 * |
DATABASE WPI Section Ch Week 9025, Derwent World Patents Index; Class M21, AN 90-191258, XP002056221 * |
PATENT ABSTRACTS OF JAPAN vol. 004, no. 102 (M - 022) 22 July 1980 (1980-07-22) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107377629A (zh) * | 2017-06-28 | 2017-11-24 | 秦皇岛首秦金属材料有限公司 | 一种中厚板轧机精轧阶段规程的分配方法 |
Also Published As
Publication number | Publication date |
---|---|
KR100517714B1 (ko) | 2005-11-28 |
ATE209974T1 (de) | 2001-12-15 |
EP0839587B1 (fr) | 2001-12-05 |
DE19645497A1 (de) | 1998-05-07 |
TW338728B (en) | 1998-08-21 |
MX9708512A (es) | 1998-05-31 |
CA2220412C (fr) | 2008-03-18 |
MY123098A (en) | 2006-05-31 |
DE59705654D1 (de) | 2002-01-17 |
KR19980042089A (ko) | 1998-08-17 |
US5943894A (en) | 1999-08-31 |
ID18570A (id) | 1998-04-23 |
ES2169310T3 (es) | 2002-07-01 |
RU2203748C2 (ru) | 2003-05-10 |
CA2220412A1 (fr) | 1998-05-05 |
JPH10166003A (ja) | 1998-06-23 |
JP4263262B2 (ja) | 2009-05-13 |
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