JPS5744413A - Controlling method for rolling work by reeling mill - Google Patents
Controlling method for rolling work by reeling millInfo
- Publication number
- JPS5744413A JPS5744413A JP55120829A JP12082980A JPS5744413A JP S5744413 A JPS5744413 A JP S5744413A JP 55120829 A JP55120829 A JP 55120829A JP 12082980 A JP12082980 A JP 12082980A JP S5744413 A JPS5744413 A JP S5744413A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- deltato
- deltata
- mill
- wall thickness
- 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
- 238000005096 rolling process Methods 0.000 title abstract 9
- 238000000034 method Methods 0.000 title 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000004513 sizing Methods 0.000 abstract 1
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
- B21B37/78—Control of tube rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/06—Rolling hollow basic material, e.g. Assel mills
- B21B19/08—Enlarging tube diameter
Abstract
PURPOSE:To prevent the variation in the wall thickness of a pipe, and to improve the yield, by controlling the diameter of the pipe to an aimed size of a rolling pass of a sizing mill, while correcting the expansion of the pipe due to a rolling work of a reeling mill, correspondingly to a thickness deviation caused by a plug mill's rolling work. CONSTITUTION:An arithmetic control unit 21 receives following information; material temperature T measured by a thermometer 20; information about the rolling torque Trq sent from torque meters 16, 16' attached to spindles 22, 22' of rolling rolls 10, 10'; wall thickness tp of a blank pipe measured after a plug mill's rolling pass and before being fed to a reeling mill; and outer diameter DP of the blank pipe. The unit 21 then outputs a reduction control signal DELTAE on the basis of said information to a reduction controller 19 which thereby practices the position control for the rolling rolls 10, 10'. Hereby, the roll gap E of rolling rolls 10, 10' is adjusted correspondingly to a difference (DELTAtA-DELTAto) between an aimed wall thickness reduction DELTAto and the actual reduction DELTAtA in the wall thickness. For DELTAtA-DELTAto>0, the gap E is increased, and for DELTAtA-DELTAto<0, the gap E is decreased, and thereby, the control is practiced so as to always make DELTAtA=DELTAto.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55120829A JPS5744413A (en) | 1980-09-01 | 1980-09-01 | Controlling method for rolling work by reeling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55120829A JPS5744413A (en) | 1980-09-01 | 1980-09-01 | Controlling method for rolling work by reeling mill |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60232709A Division JPS6188913A (en) | 1985-10-18 | 1985-10-18 | Rolling control method of reeling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5744413A true JPS5744413A (en) | 1982-03-12 |
| JPS6115761B2 JPS6115761B2 (en) | 1986-04-25 |
Family
ID=14795988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55120829A Granted JPS5744413A (en) | 1980-09-01 | 1980-09-01 | Controlling method for rolling work by reeling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5744413A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009147087A1 (en) * | 2008-06-03 | 2009-12-10 | Danieli & C. Officine Meccaniche S.P.A. | Rolling mill of rotating expander type for tubular bodies with tip-stabilizing system |
| CN113492155A (en) * | 2021-07-12 | 2021-10-12 | 武汉理工大学 | Biting control method for rolling process of large ring piece under deviation of polygonal outline of blank |
-
1980
- 1980-09-01 JP JP55120829A patent/JPS5744413A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009147087A1 (en) * | 2008-06-03 | 2009-12-10 | Danieli & C. Officine Meccaniche S.P.A. | Rolling mill of rotating expander type for tubular bodies with tip-stabilizing system |
| CN102046305A (en) * | 2008-06-03 | 2011-05-04 | 丹尼尔和科菲森梅克尼齐有限公司 | Rolling mill of rotating expander type for tubular bodies with tip-stabilizing system |
| US8800334B2 (en) | 2008-06-03 | 2014-08-12 | Danieli & C. Officine Meccaniche S.P.A. | Rolling mill of rotating expander type for tubular bodies with tip-stabilizing system |
| CN113492155A (en) * | 2021-07-12 | 2021-10-12 | 武汉理工大学 | Biting control method for rolling process of large ring piece under deviation of polygonal outline of blank |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6115761B2 (en) | 1986-04-25 |
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