GB1341059A - Rolling mill control system - Google Patents
Rolling mill control systemInfo
- Publication number
- GB1341059A GB1341059A GB1999871*[A GB1999871A GB1341059A GB 1341059 A GB1341059 A GB 1341059A GB 1999871 A GB1999871 A GB 1999871A GB 1341059 A GB1341059 A GB 1341059A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gauge
- input
- output
- actual
- measured
- 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
Links
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
- B21B37/18—Automatic gauge 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
- B21B1/22—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
1341059 Automatic control of rolling mills ALLEGHENY LUDLUM INDUSTRIES Inc 10 June 1971 [ 15 June 1970] 19998/71 Heading G3R A rolling mill gauge is controlled in response to an error between the actual or average strip input or output speed, and a value calculated, using constant volume of material through the mill, from measurements of the input gauge, the input and output actual or average speed, and a desired output gauge. In the embodiment shown, input gauge G, is measured by an X-ray or contact device 36, and fed through digitizer 40 to shift register 44 which is pulsed at intervals corresponding to predetermined input lengths e.g. 1 foot, as measured by roll 28, pulse generator 48 and interval counter 50. Register 44 acts as a time delay compensating for the distance between device 36 and the bite of the rolls. As shown, a computer 46, is fed by pulses proportional to the output length L 2 measured over the interval by roll 30, pulse generator 54 and interval counter 56; the desired output gauge G 2 d , set manually; and the input gauge G 1 , and calculates a value of input length L 1 which is compared with an actual value, measured over the same interval, from counter 58, to provide a gauge correction signal applied to the screw control 20 and /or the tension control 34. To compensate for errors in the computation, the actual output gauge G 2 may be measured by device 38 and compared with desired output gauge D 2 d to provide a further correction signal. In other embodiments Figs. 2-4, (not shown) the values of input speed, output speed or length are calculated and compared with their respective actual values to provide a gauge correction signal.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US4632070A | 1970-06-15 | 1970-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1341059A true GB1341059A (en) | 1973-12-19 |
Family
ID=21942821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1999871*[A Expired GB1341059A (en) | 1970-06-15 | 1971-06-10 | Rolling mill control system |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3636743A (en) |
| JP (1) | JPS549141B1 (en) |
| CA (1) | CA919803A (en) |
| DE (1) | DE2129629A1 (en) |
| FR (1) | FR2095254B1 (en) |
| GB (1) | GB1341059A (en) |
| SE (1) | SE383612B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5315703B2 (en) * | 1973-09-12 | 1978-05-26 | ||
| DE3177252D1 (en) * | 1981-04-29 | 1991-09-05 | Kawasaki Steel Co | METHOD FOR AUTOMATICALLY CONTROLLING THE THICKNESS REDUCTION IN A ROLLING MILL. |
| DE3925104A1 (en) * | 1988-08-12 | 1990-02-15 | Siemens Ag | Appts. for regulating strip feed from coil into cold rolling stand - using signals relating to rate of rotation of feed-off coil and change in radius of coil |
| DE4141742A1 (en) * | 1991-12-13 | 1993-06-17 | Licentia Gmbh | Method to regulate rolling stock thickness in strip rolling mill - uses mass flow regulation and formula to calculate initial strip thickness, for direct influence on roller position |
| DE19962183A1 (en) * | 1999-12-22 | 2001-07-12 | Siemens Ag | Control device for single or multi-stand rolling mills |
| DE10233118B3 (en) * | 2002-07-20 | 2004-04-29 | Aluminium Norf Gmbh | Dynamic thickness correction |
| DE102009012028A1 (en) | 2009-03-10 | 2010-09-23 | Converteam Gmbh | Method for operating a rolling train, in particular a cold rolling mill |
| EP2823901A1 (en) | 2013-07-11 | 2015-01-14 | Siemens Aktiengesellschaft | Reversing rolling mill with earliest possible activation of a thickness regulation |
| CN111250540A (en) * | 2020-01-22 | 2020-06-09 | 武汉科技大学 | Silicon steel cold rolling process based on direct current assistance |
-
1970
- 1970-06-15 US US46320A patent/US3636743A/en not_active Expired - Lifetime
-
1971
- 1971-06-01 CA CA114674A patent/CA919803A/en not_active Expired
- 1971-06-10 GB GB1999871*[A patent/GB1341059A/en not_active Expired
- 1971-06-11 FR FR7121253A patent/FR2095254B1/fr not_active Expired
- 1971-06-14 SE SE7107678A patent/SE383612B/en unknown
- 1971-06-15 DE DE19712129629 patent/DE2129629A1/en not_active Ceased
- 1971-06-15 JP JP4287471A patent/JPS549141B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3636743A (en) | 1972-01-25 |
| JPS549141B1 (en) | 1979-04-21 |
| DE2129629A1 (en) | 1971-12-23 |
| SE383612B (en) | 1976-03-22 |
| CA919803A (en) | 1973-01-23 |
| FR2095254A1 (en) | 1972-02-11 |
| FR2095254B1 (en) | 1975-02-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |