JPS57137014A - Controlling method for flatness of steel plate by variable crown roll - Google Patents
Controlling method for flatness of steel plate by variable crown rollInfo
- Publication number
- JPS57137014A JPS57137014A JP56021829A JP2182981A JPS57137014A JP S57137014 A JPS57137014 A JP S57137014A JP 56021829 A JP56021829 A JP 56021829A JP 2182981 A JP2182981 A JP 2182981A JP S57137014 A JPS57137014 A JP S57137014A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- flatness
- data
- strip
- press
- 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.)
- Pending
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
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
- B21B37/34—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by hydraulic expansion of the rolls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE:To improve flatness of a strip at the top of rolling and to reduce the time required for shape stabilization, by setting an optimum press. of variable crown rolls at the starting of rolling from various kinds of data, stored in normal rolling, and qualities of material to be rolled and rolling conditions. CONSTITUTION:Strip 4 is rolled by a four-high-mill, equipped with backup rolls 2 and work rolls 3 having variable crowns (expressed as VC hereunder) respectively. Then VC press., sheet thickness, reduction rate, and an amount of crown in normal rolling are stored in a device 6 by a shape detector 5. These data are stored at every rolling of all coils as the data in the past time in good state of flatness. Then, before the starting of rolling at this time, an initial VC press in running is computed from the material quality and the rolling scheduling, referzing to the above-mentioned past data, by a computer 7 in order to set the computed value as an optimum VC pressure. Thus an inferior part in flatness of strip is reduced and a rolling yield is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56021829A JPS57137014A (en) | 1981-02-17 | 1981-02-17 | Controlling method for flatness of steel plate by variable crown roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56021829A JPS57137014A (en) | 1981-02-17 | 1981-02-17 | Controlling method for flatness of steel plate by variable crown roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57137014A true JPS57137014A (en) | 1982-08-24 |
Family
ID=12065951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56021829A Pending JPS57137014A (en) | 1981-02-17 | 1981-02-17 | Controlling method for flatness of steel plate by variable crown roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57137014A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0811435A2 (en) * | 1996-06-07 | 1997-12-10 | BETRIEBSFORSCHUNGSINSTITUT VDEh, INSTITUT FÜR ANGEWANDTE FORSCHUNG GmbH | Presetting for a cold mill reversing stand |
| WO2023146701A1 (en) * | 2022-01-27 | 2023-08-03 | Novelis Inc. | System and method for controlling threading in a rolling mill |
-
1981
- 1981-02-17 JP JP56021829A patent/JPS57137014A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0811435A2 (en) * | 1996-06-07 | 1997-12-10 | BETRIEBSFORSCHUNGSINSTITUT VDEh, INSTITUT FÜR ANGEWANDTE FORSCHUNG GmbH | Presetting for a cold mill reversing stand |
| EP0811435A3 (en) * | 1996-06-07 | 1998-05-06 | BETRIEBSFORSCHUNGSINSTITUT VDEh, INSTITUT FÜR ANGEWANDTE FORSCHUNG GmbH | Presetting for a cold mill reversing stand |
| US5987948A (en) * | 1996-06-07 | 1999-11-23 | Betriebsforschungsinstitut, Vdeh-Institut Fur Angewandte Forschung Gmbh | Presetting for cold-roll reversal stand |
| WO2023146701A1 (en) * | 2022-01-27 | 2023-08-03 | Novelis Inc. | System and method for controlling threading in a rolling mill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES8101937A1 (en) | Cooperative rolling process and apparatus | |
| JPS57137014A (en) | Controlling method for flatness of steel plate by variable crown roll | |
| JPS5614006A (en) | Rolling method for thick plate | |
| GB1496946A (en) | Method for controlling flatness of metal sheet in rolling | |
| ES8306618A1 (en) | Method and apparatus for automatic mill zero correction for strip width | |
| JPS57168703A (en) | Roll changing method for rolling mill | |
| JPS5768206A (en) | Rolling mill | |
| JPS5414356A (en) | Automaic rearranging method for mill roll | |
| JPS57146407A (en) | Rolling method for thick plate | |
| JPS57177828A (en) | Initial setting and setting correcting method for gap between fin pass rolls of electric welded steel pipe | |
| JPS5573413A (en) | Controlling method for sheet thickness in rolling of sheet material | |
| JPS54139864A (en) | Broadside rolling mill for slab | |
| GB2015401A (en) | A Method for Controlling the Flatness of Cold-rolled Plates and Foils | |
| JPS56117804A (en) | Rolling method for steel sheet | |
| JPS56144813A (en) | Controlling method for thickness of tail end of strip | |
| JPS57168708A (en) | Width rolling device | |
| JPS5680311A (en) | Controlling method for rolling mill | |
| JPS57103706A (en) | Method for decreasing plate crown | |
| JPS6478612A (en) | Arithmetic unit for gap between rolls of multistage rolling mill | |
| JPS55139101A (en) | Method and apparatus for strong width-reducing rolling | |
| JPS56131002A (en) | Changing method for roll crown | |
| JPS53113746A (en) | Setting method for roll gap of rolling mill | |
| Yoshii et al. | Development of Variable Crown Roll(VC Roll) System With Strip Shape and Profile Control Device | |
| JPS5545532A (en) | Roll screw-down position setting method of six-high rolling mill | |
| JPS5548147A (en) | Gap controller of coiler pinch roll |