JPS55122628A - Roll mark preventing method of strip and device thereof - Google Patents

Roll mark preventing method of strip and device thereof

Info

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
Application number
JP2951479A
Other languages
Japanese (ja)
Other versions
JPS6010813B2 (en
Inventor
Taira Yamazaki
Keiji Yamamoto
Yoshihiro Ushigami
Setsuo Setoguchi
Kiyoshi Kumasaka
Takehiko Matsushige
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Sumitomo Heavy Industries Ltd
Original Assignee
Sumitomo Heavy Industries Ltd
Sumitomo Metal Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Heavy Industries Ltd, Sumitomo Metal Industries Ltd filed Critical Sumitomo Heavy Industries Ltd
Priority to JP2951479A priority Critical patent/JPS6010813B2/en
Publication of JPS55122628A publication Critical patent/JPS55122628A/en
Publication of JPS6010813B2 publication Critical patent/JPS6010813B2/en
Expired legal-status Critical Current

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
JP2951479A 1979-03-14 1979-03-14 Strip roll mark prevention method and device Expired JPS6010813B2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6212767U (en) * 1985-07-05 1987-01-26

Cited By (1)

* Cited by examiner, † Cited by third party
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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