JPS55103211A - Controlling method for tensile force of continuous rolling mill - Google Patents
Controlling method for tensile force of continuous rolling millInfo
- Publication number
- JPS55103211A JPS55103211A JP913379A JP913379A JPS55103211A JP S55103211 A JPS55103211 A JP S55103211A JP 913379 A JP913379 A JP 913379A JP 913379 A JP913379 A JP 913379A JP S55103211 A JPS55103211 A JP S55103211A
- Authority
- JP
- Japan
- Prior art keywords
- tensile force
- stand
- speed
- continuous rolling
- deviates
- 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.)
- Granted
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
- B21B37/48—Tension control; Compression control
- B21B37/52—Tension control; Compression control by drive motor control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE: To prevent previously the abnormal loop hanging on the material to be rolled, by, in controlling the tensile force between continuous rolling stands by FTC system, calculating a specific correcting value in order to correct compulsively the roll speed of the object stand when the tensile force, which is computed by an arithmetic unit, deviates from the upper and lower limits.
CONSTITUTION: When a material 18 to be rolled is delivered from a first stand and is bitten by a second stand, an arithmetic unit 22 calculates the tensile force t between the two stands from the rolling torque G1 and rolling load P1, and feeds the tensile force to a substracting unit 25 and a comparator 23. To the comparator 23 are set previously upper and lower limit values. When the tensile force t deviates from the limit values, a gate 26 is opened and ordinary FTC control is discontinued. At that time, the tensile force deviation corresponding to a desired value tO and a tensile force-speed affecting coefficient α are inputted to an arithmetic memory unit 28 to calculate a speed correction ΔNt, hereby the roll speed of the first stand is corrected.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54009133A JPS5949085B2 (en) | 1979-01-31 | 1979-01-31 | Tension control method for continuous rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54009133A JPS5949085B2 (en) | 1979-01-31 | 1979-01-31 | Tension control method for continuous rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55103211A true JPS55103211A (en) | 1980-08-07 |
| JPS5949085B2 JPS5949085B2 (en) | 1984-11-30 |
Family
ID=11712122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54009133A Expired JPS5949085B2 (en) | 1979-01-31 | 1979-01-31 | Tension control method for continuous rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5949085B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010260067A (en) * | 2009-04-30 | 2010-11-18 | Nippon Steel Corp | Plate rolling mill and its control method |
-
1979
- 1979-01-31 JP JP54009133A patent/JPS5949085B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010260067A (en) * | 2009-04-30 | 2010-11-18 | Nippon Steel Corp | Plate rolling mill and its control method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5949085B2 (en) | 1984-11-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS57130713A (en) | Rolling speed arranging method of cold tandem mill | |
| JPS55103211A (en) | Controlling method for tensile force of continuous rolling mill | |
| JPS53112253A (en) | Controlling method for interstand tension in continuous rolling mill | |
| JPS5471756A (en) | Feed-forward type automatic controlling method for sheet gauge | |
| JPS57206510A (en) | Sheet shape controlling device in continuous rolling mill | |
| JPS5645204A (en) | Controlling method for sheet crown | |
| JPH0239326B2 (en) | ||
| JPS5514136A (en) | Control unit for rolling of steel bar product | |
| JPS56160819A (en) | Controlling method for thickness of front end of steel sheet | |
| JPS57127513A (en) | Zero point adjusting method for roll gap of steel shapes rolling mill | |
| JPS5680311A (en) | Controlling method for rolling mill | |
| JPS5636309A (en) | Controlling mehtod for tension | |
| JPS5577922A (en) | Feedforward controlling method for thickness of rolled material | |
| JPS55139107A (en) | Controlling method for thickness of sheet | |
| JPS56144813A (en) | Controlling method for thickness of tail end of strip | |
| JPS56126015A (en) | Controlling method for breadth of strip in hot strip mill | |
| JPS5744410A (en) | Sheet breadth controller for hot rolling process | |
| JPS5619918A (en) | Controlling system for sheet thickness in hot rolling work | |
| JPS6462205A (en) | Control method for rolling mill in continuous rolling of metal stock | |
| JPS55136507A (en) | Automatic controlling method for sheet thickness by gaugemeter type | |
| JPS57149014A (en) | Method for preventing steel sheet from cambering and rolling mill used therefor | |
| JPH0587326B2 (en) | ||
| JPS56111519A (en) | Automatic thickness controller | |
| JPS5471757A (en) | Feed-forward type automatic controlling method for sheet gauge | |
| JPS54158361A (en) | Controlling method for continuous rolling mill |