GB1305314A - - Google Patents
Info
- Publication number
- GB1305314A GB1305314A GB2147671A GB2147671A GB1305314A GB 1305314 A GB1305314 A GB 1305314A GB 2147671 A GB2147671 A GB 2147671A GB 2147671 A GB2147671 A GB 2147671A GB 1305314 A GB1305314 A GB 1305314A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- determining
- roll
- exit
- thickness
- 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
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Metal Rolling (AREA)
Abstract
1305314 Programmed process control CENTRE NATIONAL DE RECHERCHES METALLURGIQUES 19 April 1971 [13 Feb 1970] 21476/71 Heading G3N A process for the predetermination of the datum values of a rolling mill finishing train is controlled by a computer wherein are imposed data including the required thickness at the exit of the last frame of the mill, the required temperature at the exit and the required temperature at the coiler, the nature of the steel and the diameters of the working rolls. At the exit of a roughing pass train the width, temperature and thickness of the strip are measured and by means of mathematical models the speed of the strip at the exit from the mill and its profile is determined. The process comprises the following operations: (a) determining the instantaneous values of the rolls, allowing for their wear and thermal condition; (b) determining the force to be applied to the last roll stand; (c) determining the necessary thickness of the strip at the entrance to the last roll stand; (d) selecting on the basis of the strip characteristics, the optimum distribution of power between the roll stands and distributing the total absorbed power accordingly; (e) checking that the power for each stand does not exceed a given maximum; (f) determining consecutively the strip thickness between the roll stands, the corresponding strip speeds, the roll peripheral speeds and the roll driving motor speeds; (g) calculating the forces exerted in the roll stands and checking against a given maximum; (h) checking whether the force distribution renders it possible to produce a plane strip and if not modifying the force distribution; (i) determining the datum values of the train, clamping screws, and forces at gauge control devices; (j) selecting datum values for loop tensioners; (k) feeding all said datum values to corresponding servomechanisms.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE745997 | 1970-02-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1305314A true GB1305314A (en) | 1973-01-31 |
Family
ID=3856087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2147671A Expired GB1305314A (en) | 1970-02-13 | 1971-04-19 |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE745997A (en) |
FR (1) | FR2079413B1 (en) |
GB (1) | GB1305314A (en) |
LU (1) | LU62589A1 (en) |
NL (1) | NL171131C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2193348A (en) * | 1986-07-01 | 1988-02-03 | Sendzimir Inc T | Rolling mill management system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE637694A (en) * | 1962-09-21 | |||
FR1419978A (en) * | 1963-12-10 | 1965-12-03 | Thomson Houston Comp Francaise | Improvements to rolling mill control systems |
US3318124A (en) * | 1964-12-10 | 1967-05-09 | Westinghouse Electric Corp | Workpiece shape control |
GB1199203A (en) * | 1966-11-30 | 1970-07-15 | Nippon Kokan Kk | Apparatus for Controlling the Shape of a Workpiece During Rolling |
GB1280821A (en) * | 1968-05-24 | 1972-07-05 | Davy & United Eng Co Ltd | Improvements in or relating to the rolling of metal strip, sheet or plate |
-
1970
- 1970-02-13 BE BE745997D patent/BE745997A/en not_active IP Right Cessation
-
1971
- 1971-02-11 NL NL7101859A patent/NL171131C/en not_active IP Right Cessation
- 1971-02-12 LU LU62589D patent/LU62589A1/xx unknown
- 1971-02-12 FR FR7104724A patent/FR2079413B1/fr not_active Expired
- 1971-04-19 GB GB2147671A patent/GB1305314A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2193348A (en) * | 1986-07-01 | 1988-02-03 | Sendzimir Inc T | Rolling mill management system |
GB2193348B (en) * | 1986-07-01 | 1990-07-11 | Sendzimir Inc T | Rolling mill management system |
Also Published As
Publication number | Publication date |
---|---|
FR2079413B1 (en) | 1974-02-15 |
NL7101859A (en) | 1971-08-17 |
FR2079413A1 (en) | 1971-11-12 |
LU62589A1 (en) | 1971-08-19 |
DE2106848B2 (en) | 1976-06-10 |
NL171131B (en) | 1982-09-16 |
NL171131C (en) | 1983-02-16 |
BE745997A (en) | 1970-08-13 |
DE2106848A1 (en) | 1971-10-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB982231A (en) | Improvements in or relating to workpiece control in rolling mills | |
US2851911A (en) | Rolling mills | |
US4385511A (en) | Method of rolling metal articles | |
GB1347052A (en) | Controlling rolling mill operation | |
US4261190A (en) | Flatness control in hot strip mill | |
US3518858A (en) | Method of continuously controlling the correcting apparatus for workpiece shape during rolling | |
US2369730A (en) | Method of rolling metal bars | |
US3650135A (en) | Control for rolling means having successine rolling stands | |
US3603124A (en) | Computer control system for rolling metal strips using feed-forward and prediction | |
US3911713A (en) | Method of rolling metal sheet articles | |
US3172313A (en) | Strip rolling apparatus | |
GB1326157A (en) | Control of strip tension in rolling mills | |
GB1307823A (en) | Rolling of strip or plate material | |
GB1305314A (en) | ||
GB1080842A (en) | Method of and apparatus for obtaining flat metallic strip | |
US3290912A (en) | Rolling mill control apparatus | |
US3871221A (en) | Continuous strip rolling mill | |
GB1264876A (en) | ||
US3212310A (en) | Automatic gauge and tension control system | |
EP0109235B1 (en) | Rolling mill control for tandem rolling | |
GB1311566A (en) | Hot-rolling of metal slabs | |
US3808857A (en) | Gage control method and system for tandem rolling mills | |
US3124020A (en) | Methods of and apparatus for controlling rolling mills | |
GB885784A (en) | Improvements in or relating to rolling mills | |
US2370984A (en) | Rolling mill |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |