GB1326157A - Control of strip tension in rolling mills - Google Patents
Control of strip tension in rolling millsInfo
- Publication number
- GB1326157A GB1326157A GB3977371A GB3977371A GB1326157A GB 1326157 A GB1326157 A GB 1326157A GB 3977371 A GB3977371 A GB 3977371A GB 3977371 A GB3977371 A GB 3977371A GB 1326157 A GB1326157 A GB 1326157A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- thickness
- meter
- counter
- width
- 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
- B21B37/24—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
1326157 Rolling mills NIPPON KOKAN KK 25 Aug 1971 [26 Aug 1970] 39773/71 Heading B3M In a method of controlling a cold tandem strip mill having stands 1 and 2, the tensile stress acting on a rolled strip is kept constant despite changes in its width or thickness. The method is applicable to a mill in which lengths of strips having different widths or thickness are joined together before rolling, to provide one continuous strip. The thickness of the strip is measured by a counter 7, its width by a counter 8, and its tension by a meter 9. The thickness and width signals are fed to a multiplier 10, and to a calculator 11 which provides a signal corresponding to the desired total tension in the strip. This signal is compared with the actual tension from the meter 9, and any error signal is used to control the speeds of the stands or the screwdown of stand 2 so that the error signal is reduced. Instead of the thickness counter 7, a load cell and screwdown position indicator associated with stand 1 may be employed. To compensate for the different positions of the counters 7 and 8 and meter 9 relative to the strip, delay circuits which are sensitive to the strip speed, may be positioned between the counters and the multiplier 10.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP45074281A JPS4938977B1 (en) | 1970-08-26 | 1970-08-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1326157A true GB1326157A (en) | 1973-08-08 |
Family
ID=13542558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3977371A Expired GB1326157A (en) | 1970-08-26 | 1971-08-25 | Control of strip tension in rolling mills |
Country Status (5)
Country | Link |
---|---|
US (1) | US3760621A (en) |
JP (1) | JPS4938977B1 (en) |
DE (1) | DE2142859C3 (en) |
FR (1) | FR2104876B1 (en) |
GB (1) | GB1326157A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2160136A (en) * | 1984-05-23 | 1985-12-18 | Achenbach Buschhuetten Gmbh | Apparatus for cold rolling mills for detecting and controlling the flatness of rolled strip |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3852983A (en) * | 1973-04-25 | 1974-12-10 | Westinghouse Electric Corp | Work strip gauge change during rolling in a tandem rolling mill |
US4011743A (en) * | 1976-04-20 | 1977-03-15 | Westinghouse Electric Corporation | Stand speed reference circuit for a continuous tandem rolling mill |
JPS595364B2 (en) * | 1977-01-07 | 1984-02-04 | 株式会社日立製作所 | Tension control method |
US4520642A (en) * | 1981-09-30 | 1985-06-04 | Mitsubishi Denki Kabushiki Kaisha | Control device for continuous rolling machine |
US4558577A (en) * | 1983-01-19 | 1985-12-17 | Ukrainsky Nauchnoissledovatelsky Institut Metallov | Roll-forming machine for making articles having cross-sectional configurations varying lengthwise |
DE3525457C3 (en) * | 1985-07-17 | 1999-06-10 | Mannesmann Ag | Rolling mill for the production of hot-rolled steel strips |
FR2628347B1 (en) * | 1988-03-09 | 1990-12-21 | Clecim Sa | IMPROVED PROCESS AND INSTALLATION FOR THE CONTINUOUS LAMINATION OF A METAL STRIP |
US5590556A (en) * | 1993-02-11 | 1997-01-07 | Fourie; Eugene | Apparatus for the manufacture of a thin metallic strip |
US5875672A (en) * | 1993-02-11 | 1999-03-02 | Fourie; Eugene | Method and apparatus for manufacturing metallic support beams for windscreen wiper blade assemblies |
CN109731921B (en) * | 2019-03-01 | 2020-05-19 | 北京金自天正智能控制股份有限公司 | Method for calculating tension between finishing mill frames |
DE102019131761A1 (en) * | 2019-11-25 | 2021-05-27 | Norbert Umlauf | ROLLING LINE |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3186201A (en) * | 1961-06-21 | 1965-06-01 | Steelworks Automation Ltd | Production of metal strip |
US3281917A (en) * | 1964-01-08 | 1966-11-01 | United States Steel Corp | Method and apparatus for coldrolling strip continuously |
US3603124A (en) * | 1968-05-09 | 1971-09-07 | Nippon Kokan Kk | Computer control system for rolling metal strips using feed-forward and prediction |
US3618348A (en) * | 1968-05-21 | 1971-11-09 | Nippon Kokan Kk | Method of controlling rolling of metal strips |
-
1970
- 1970-08-26 JP JP45074281A patent/JPS4938977B1/ja active Pending
-
1971
- 1971-08-20 US US00176766A patent/US3760621A/en not_active Expired - Lifetime
- 1971-08-25 GB GB3977371A patent/GB1326157A/en not_active Expired
- 1971-08-26 FR FR7130958A patent/FR2104876B1/fr not_active Expired
- 1971-08-26 DE DE2142859A patent/DE2142859C3/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2160136A (en) * | 1984-05-23 | 1985-12-18 | Achenbach Buschhuetten Gmbh | Apparatus for cold rolling mills for detecting and controlling the flatness of rolled strip |
US4750343A (en) * | 1984-05-23 | 1988-06-14 | Gerhard Richter | Device for detecting and regulating the planeness of strip-shaped rolled products, especially thin-gage strips, for cold rolling mills |
Also Published As
Publication number | Publication date |
---|---|
DE2142859A1 (en) | 1972-03-02 |
FR2104876B1 (en) | 1974-03-29 |
FR2104876A1 (en) | 1972-04-21 |
DE2142859C3 (en) | 1980-06-19 |
JPS4938977B1 (en) | 1974-10-22 |
DE2142859B2 (en) | 1979-10-11 |
US3760621A (en) | 1973-09-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2851911A (en) | Rolling mills | |
GB1326157A (en) | Control of strip tension in rolling mills | |
GB982232A (en) | Improvements in or relating to automatic strip gauge control for a rolling mill | |
GB1347052A (en) | Controlling rolling mill operation | |
GB1465792A (en) | Method of and apparatus for controlling strip flatness during the cold-rolling of strip material | |
GB892058A (en) | Improvements in or relating to rolling mills | |
GB1269267A (en) | Controlling the rolling of metal strip | |
US3841124A (en) | Width controlling apparatus and method for rolled strips | |
GB1487743A (en) | Method and apparatus for controlling roll gaps of cold rolling mills | |
GB1231008A (en) | ||
GB1270246A (en) | Improvements in or relating to rolling | |
US3722244A (en) | Method of controlling continuous rolling of metal strips | |
GB1307823A (en) | Rolling of strip or plate material | |
US3290912A (en) | Rolling mill control apparatus | |
GB1264876A (en) | ||
GB1224713A (en) | Improvements in or relating to rolling mill control systems | |
GB1290162A (en) | ||
GB1408573A (en) | Method and apparatus for tensioning strip | |
GB1341059A (en) | Rolling mill control system | |
GB898613A (en) | Automatic control system for continuous strip mill | |
GB1270788A (en) | Improvements in or relating to cold rolling stands | |
GB885784A (en) | Improvements in or relating to rolling mills | |
GB1300281A (en) | Width gage for plate mill | |
GB1326169A (en) | Control of strip tension in rolling mills | |
GB1225520A (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PE20 | Patent expired after termination of 20 years |