GB1354971A - Method and apparatus for controlling delivery gauge in a metals rolling mill - Google Patents
Method and apparatus for controlling delivery gauge in a metals rolling millInfo
- Publication number
- GB1354971A GB1354971A GB3613271A GB3613271A GB1354971A GB 1354971 A GB1354971 A GB 1354971A GB 3613271 A GB3613271 A GB 3613271A GB 3613271 A GB3613271 A GB 3613271A GB 1354971 A GB1354971 A GB 1354971A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stand
- exit
- thickness
- rolling mill
- strip speed
- 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
- B21B37/58—Roll-force control; Roll-gap control
-
- 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
-
- 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
- B21B37/56—Elongation control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
1354971 Automatic control of rolling mills GENERAL ELECTRIC CO 2 Aug 1971 [13 Aug 1970] 36132/71 Heading G3R In a multiple stand rolling mill, the exit thickness of strip from a stand is controlled by the difference between valves of exit thickness calculated (a) from the force on the rolls, the unloaded roll gap and the mill modulus of elasticity and (b) from the exit strip speed at that stand, and the exit strip speed and thickness at the final stand. In the embodiment, the force on the rolls is measured by load cells 20, 30, the strip speed by tachogenerators 21, 39 and the output thickness by an X-ray gauge. For stand II, for example, the calculations of exit thickness using "gaugemeter" and "mass flow" techniques are differenced, and fed to a summer 25 and position control 26 to adjust the screwdowns. The "mass flow" calculation may be corrected according to the proportion of the total load exerted by the stand. The differenced signal may be passed periodically to the roll gap adjuster, which may be digital or analogue.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US6342670A | 1970-08-13 | 1970-08-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1354971A true GB1354971A (en) | 1974-06-05 |
Family
ID=22049116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3613271A Expired GB1354971A (en) | 1970-08-13 | 1971-08-02 | Method and apparatus for controlling delivery gauge in a metals rolling mill |
Country Status (5)
Country | Link |
---|---|
AU (1) | AU3139571A (en) |
DE (1) | DE2139954A1 (en) |
FR (1) | FR2102229B1 (en) |
GB (1) | GB1354971A (en) |
NL (1) | NL7110887A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5125833B2 (en) * | 1972-02-21 | 1976-08-03 | ||
BE793760A (en) * | 1972-11-06 | 1973-07-09 | Westinghouse Electric Corp | PROCESS AND APPARATUS FOR CONTROL OF THE ROLLER CALIBER INCLUDING THE REACTION CORRECTION |
BE793762A (en) * | 1972-11-06 | 1973-07-09 | Westinghouse Electric Corp | ROLLER GAUGE CONTROL PROCESS AND APPARATUS INCLUDING SPEED CORRECTION |
-
1971
- 1971-07-19 AU AU31395/71A patent/AU3139571A/en not_active Expired
- 1971-08-02 GB GB3613271A patent/GB1354971A/en not_active Expired
- 1971-08-06 NL NL7110887A patent/NL7110887A/xx unknown
- 1971-08-09 FR FR7129119A patent/FR2102229B1/fr not_active Expired
- 1971-08-10 DE DE19712139954 patent/DE2139954A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
AU3139571A (en) | 1973-01-25 |
FR2102229B1 (en) | 1974-02-15 |
DE2139954A1 (en) | 1972-02-17 |
NL7110887A (en) | 1972-02-15 |
FR2102229A1 (en) | 1972-04-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |