JPS57124508A - Method and device for cold rolling of strip - Google Patents
Method and device for cold rolling of stripInfo
- Publication number
- JPS57124508A JPS57124508A JP883881A JP883881A JPS57124508A JP S57124508 A JPS57124508 A JP S57124508A JP 883881 A JP883881 A JP 883881A JP 883881 A JP883881 A JP 883881A JP S57124508 A JPS57124508 A JP S57124508A
- Authority
- JP
- Japan
- Prior art keywords
- pass draft
- rolling
- strip
- side thickness
- rolls
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
- B21B13/147—Cluster mills, e.g. Sendzimir mills, Rohn mills, i.e. each work roll being supported by two rolls only arranged symmetrically with respect to the plane passing through the working rolls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
PURPOSE:To prevent the abnormal rolling phenomena owing to generation of slips between rolls in multiple cold rolling of strips by operating the pass draft from the thicknesses of the strip detected at the start of rolling, and controlling the pass draft to a specific value. CONSTITUTION:In the stage of cold rolling of a strip (a) with 20-stage Sendzimir rolling mills or the like, the inlet side thickness H and outlet side thickness (h) of the strip (a) are measured with a rolling mill inlet side thickness gage A and a rolling mill outlet side thickness gage B respectively. These are put in a pass draft operator C, by which a pass draft (r) is operated. This is compared with the limit pass draft (r) is operated. This is compared with the limit pass draft (r') set in a limit pass draft setter D, and a screw-down cylinder (f) is adjusted via a screw-down controller F in such a way that it attains the value smaller than this, whereby the gap between the work rolls OT and OB on the upper and lower sides is adjusted. When such an abnormal phenomenon wherein the (r) becomes larger than the (r'), a danger signal is emitted by an alarm device E for the generation of the slip between the rolls, whereby the slip is prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP883881A JPS57124508A (en) | 1981-01-23 | 1981-01-23 | Method and device for cold rolling of strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP883881A JPS57124508A (en) | 1981-01-23 | 1981-01-23 | Method and device for cold rolling of strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57124508A true JPS57124508A (en) | 1982-08-03 |
Family
ID=11703915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP883881A Pending JPS57124508A (en) | 1981-01-23 | 1981-01-23 | Method and device for cold rolling of strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57124508A (en) |
-
1981
- 1981-01-23 JP JP883881A patent/JPS57124508A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4238946A (en) | Method for rolling metal plate | |
| JPS60206511A (en) | Method and device for controlling sheet shape | |
| JPS57124508A (en) | Method and device for cold rolling of strip | |
| JPS5722812A (en) | Method for automatic control of plate thickness of multistand rolling mill | |
| Jouet et al. | Automatic flatness control at Solmer hot strip mill using the Lasershape sensor | |
| JPS56158206A (en) | Continuous rolling method for strip | |
| EP0065936A3 (en) | Limited-capacity reversible rolling mill, particularly for the hot-rolling of special steels and non-ferrous metals | |
| JPS5592216A (en) | Method and apparatus for controlling plate crown | |
| JPS56117815A (en) | Method and apparatus for controlling sheet breadth in hot rolling mill | |
| JPS56117814A (en) | Method and apparatus for controlling breadth of sheet in hot rolling mill | |
| JPS5568114A (en) | Controller for rolling work of multistage continuous rolling mill | |
| JPS53119767A (en) | Preventing apparatus for entering of rolled material of anomalous thickness | |
| Xu | Plate and strip mill gauge control model--reference point precontrol and monitor AGC | |
| JPS57106408A (en) | Method for presuming rolling load | |
| JPS55122615A (en) | Plate breadth control method by cold roll tandem mill | |
| JPS5650720A (en) | Tension roller staightener | |
| JPS53118260A (en) | Plate-thickness controlling method for rolling mill | |
| JPS5668519A (en) | Width control device of rolling mill | |
| JPS5662602A (en) | Production of aluminum plate | |
| JPS54122660A (en) | Controlling method for sheet gauge in rolling mill | |
| JPS5441255A (en) | Preventing method for tear of strip in steel strip manufacturing process | |
| JPS54160547A (en) | Control of plate thickness and shape in continuous rolling mill | |
| JPH05293522A (en) | Plate thickness controller for cold mill | |
| JPS55128311A (en) | Shape control method in sextuple rolling mills | |
| JPS55122612A (en) | Shape control method in strip rolling |