JPS55122628A - Roll mark preventing method of strip and device thereof - Google Patents
Roll mark preventing method of strip and device thereofInfo
- Publication number
- JPS55122628A JPS55122628A JP2951479A JP2951479A JPS55122628A JP S55122628 A JPS55122628 A JP S55122628A JP 2951479 A JP2951479 A JP 2951479A JP 2951479 A JP2951479 A JP 2951479A JP S55122628 A JPS55122628 A JP S55122628A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- strip
- screw
- speed
- leveller
- 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
- Straightening Metal Sheet-Like Bodies (AREA)
Abstract
PURPOSE: To effectively prevent the formation of roll marks by regulating the speed at the quick opening of a leveller roll or the like to the speed at which no roll marks are formed in the contact zone of the strip and roll.
CONSTITUTION: When e.g., qick open control is started by operating a solenoid valve 6, the opening of a flow control valve 5 is kept small of its throttle opening in the throttle control zone where a screw-down roll 1 is contact with the strip by the operation of the regulating cylinder 5' built therein, by which the flow rate on the return side of the cylinder 3 is limited and therefore the screw-down leveller roll 1 descends gradually. As the screw-down leveller roll 1 approaches to the zone to be detached from the strip, the speed gradually increases until finally the val ve is fully opened, so that the screw-down leveller roller 1 descends at the speed having been set by the flow control valve 4.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2951479A JPS6010813B2 (en) | 1979-03-14 | 1979-03-14 | Strip roll mark prevention method and device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2951479A JPS6010813B2 (en) | 1979-03-14 | 1979-03-14 | Strip roll mark prevention method and device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55122628A true JPS55122628A (en) | 1980-09-20 |
JPS6010813B2 JPS6010813B2 (en) | 1985-03-20 |
Family
ID=12278198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2951479A Expired JPS6010813B2 (en) | 1979-03-14 | 1979-03-14 | Strip roll mark prevention method and device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6010813B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105057402A (en) * | 2015-07-17 | 2015-11-18 | 河北钢铁股份有限公司邯郸分公司 | Hot straightening method for low-carbon bainite steel plate with thickness of 25 mm |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6212767U (en) * | 1985-07-05 | 1987-01-26 |
-
1979
- 1979-03-14 JP JP2951479A patent/JPS6010813B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105057402A (en) * | 2015-07-17 | 2015-11-18 | 河北钢铁股份有限公司邯郸分公司 | Hot straightening method for low-carbon bainite steel plate with thickness of 25 mm |
Also Published As
Publication number | Publication date |
---|---|
JPS6010813B2 (en) | 1985-03-20 |
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