JPS55109502A - Rolling method - Google Patents
Rolling methodInfo
- Publication number
- JPS55109502A JPS55109502A JP1528179A JP1528179A JPS55109502A JP S55109502 A JPS55109502 A JP S55109502A JP 1528179 A JP1528179 A JP 1528179A JP 1528179 A JP1528179 A JP 1528179A JP S55109502 A JPS55109502 A JP S55109502A
- Authority
- JP
- Japan
- Prior art keywords
- crown
- control
- ratio
- controllability
- increase
- 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
Landscapes
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE: To suitably control the sheet crown of the rolled material, and to manufacture beautifully shaped sheet, by increasing the draft percentage of the final stand in order to increase the controlled variable of the crown, and at the same time, by executing the shape control for the crown.
CONSTITUTION: The data control block (DCB) is installed in five stands F2W F6 of the finishing mill group consisting of illustrated six stands F1WF6, and the crown is controlled to the range from maximum increase to maximum decrease; in this case, the variation of crown ratio is expressed as follows. That is, the controllability for the sheet crown is governed by the crown controllability of F6. Accordingly, the crown controllability can be greatly increased by increasing the draft percentage of F6. Besides, in this method, the draft percentage of F6 is increased in order to increase the controlled variable of the crown, and also, the shape control is carried out simultaneously with the crown control. That is, the crown control unit of the F6 stand is actuated so as to make the relation between the crown ratio C0 on the exit side of F6 and the crown ratio C1 on the entry side of F6, to be |C0-C1|≤1/2 × shape allowable crown ratio variation.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54015281A JPS5829162B2 (en) | 1979-02-13 | 1979-02-13 | Hot rolling method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54015281A JPS5829162B2 (en) | 1979-02-13 | 1979-02-13 | Hot rolling method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55109502A true JPS55109502A (en) | 1980-08-23 |
JPS5829162B2 JPS5829162B2 (en) | 1983-06-21 |
Family
ID=11884461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54015281A Expired JPS5829162B2 (en) | 1979-02-13 | 1979-02-13 | Hot rolling method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5829162B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002253483A (en) * | 2001-03-01 | 2002-09-10 | Asahi Optical Co Ltd | Length measurement tool for endoscope |
US7857749B2 (en) | 2001-02-26 | 2010-12-28 | Hoya Corporation | Treatment tools for endoscope |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5391049A (en) * | 1977-01-21 | 1978-08-10 | Mitsubishi Electric Corp | Shape control apparatus for tandem rolling machine |
-
1979
- 1979-02-13 JP JP54015281A patent/JPS5829162B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5391049A (en) * | 1977-01-21 | 1978-08-10 | Mitsubishi Electric Corp | Shape control apparatus for tandem rolling machine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7857749B2 (en) | 2001-02-26 | 2010-12-28 | Hoya Corporation | Treatment tools for endoscope |
JP2002253483A (en) * | 2001-03-01 | 2002-09-10 | Asahi Optical Co Ltd | Length measurement tool for endoscope |
Also Published As
Publication number | Publication date |
---|---|
JPS5829162B2 (en) | 1983-06-21 |
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