JPS5450455A - Elongation controller for rolling mill - Google Patents

Elongation controller for rolling mill

Info

Publication number
JPS5450455A
JPS5450455A JP11735377A JP11735377A JPS5450455A JP S5450455 A JPS5450455 A JP S5450455A JP 11735377 A JP11735377 A JP 11735377A JP 11735377 A JP11735377 A JP 11735377A JP S5450455 A JPS5450455 A JP S5450455A
Authority
JP
Japan
Prior art keywords
elongation
operated
deviation
controller
setter
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.)
Pending
Application number
JP11735377A
Other languages
Japanese (ja)
Inventor
Isao Imai
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.)
IHI Corp
Original Assignee
IHI Corp
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 IHI Corp filed Critical IHI Corp
Priority to JP11735377A priority Critical patent/JPS5450455A/en
Publication of JPS5450455A publication Critical patent/JPS5450455A/en
Pending legal-status Critical Current

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  • Control Of Metal Rolling (AREA)

Abstract

PURPOSE: To make possible the elongation to be exactly, easily controlled, by connecting the elongation setter to the sheet elongation arithmetic unit, and the arithmetic unit to the draft controller, on purpose to correct the rolling load depending on the deviation obtained from those devices.
CONSTITUTION: In the rolling mill where the circumferential speed ratio of upper and lower work rolls 1, 2, is different, the sheet speeds on the feeding side and on the outgoing side are detected by the speed meters 21, 22, and are sent to the elongation meter 19. The ratio of integrated values, on the feeding side and the outgoing side for a specified time, is operated by the elongation meter 19, and its deviation from the signal given by the elongation setter 20 is operated. This deviation signal is sent from the proportional plus integral controller 18 to the draft controller 11 so as to control the screw down device 10 for holding constant the elongation. According to this mechanism, the elongation control can be simply operated, so that the product quality is improved
COPYRIGHT: (C)1979,JPO&Japio
JP11735377A 1977-09-29 1977-09-29 Elongation controller for rolling mill Pending JPS5450455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11735377A JPS5450455A (en) 1977-09-29 1977-09-29 Elongation controller for rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11735377A JPS5450455A (en) 1977-09-29 1977-09-29 Elongation controller for rolling mill

Publications (1)

Publication Number Publication Date
JPS5450455A true JPS5450455A (en) 1979-04-20

Family

ID=14709580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11735377A Pending JPS5450455A (en) 1977-09-29 1977-09-29 Elongation controller for rolling mill

Country Status (1)

Country Link
JP (1) JPS5450455A (en)

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