JPS56141907A - Thickness controlling method - Google Patents

Thickness controlling method

Info

Publication number
JPS56141907A
JPS56141907A JP4434980A JP4434980A JPS56141907A JP S56141907 A JPS56141907 A JP S56141907A JP 4434980 A JP4434980 A JP 4434980A JP 4434980 A JP4434980 A JP 4434980A JP S56141907 A JPS56141907 A JP S56141907A
Authority
JP
Japan
Prior art keywords
slab
skid
heating furnace
thickness
interval
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
JP4434980A
Other languages
Japanese (ja)
Inventor
Seiji Fukuda
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4434980A priority Critical patent/JPS56141907A/en
Publication of JPS56141907A publication Critical patent/JPS56141907A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To control the thickness correspondingly to the interval of skid masrk of the slab after extracting from the heating furnace in order to improve the accuracy of thickness, by stopping the slab at a fixed position upon the table on the feed-in side of the heating furnace.
CONSTITUTION: A slab 12 is stopped at a fixed position A upon the table 11 on the feed-in side of the heating furnace 13, and is charged into the heating furnace 13 for heating. At this moment, the controller 20 stores the data on the length of slab 12; besides, the stopping point A of the slab 12 is fixed and the interval l of the skid marks is a constant value, so that the controller 20 easily catches the position of skid mark of the slab 12. Next, if the slab 12 is rough rolled by the roughing stand group 16 and is bitten by the final roughing stand 16a, the speed detector 21 inputs the speed signal to the counter 22. Then, the counter 22 makes up a pitch suitable for controlling the rolling process for a size smaller than the interval l of the skid marks, and inputs it as the thickness controlling pitch to the controller 20. On the other hand, since the position of the skid mark of the slab 12 is being caught, the control pitch just corresponding to the skid mark can be discriminated, so that the elimination of thickness variation at the point of the skid mark becomes possible.
COPYRIGHT: (C)1981,JPO&Japio
JP4434980A 1980-04-04 1980-04-04 Thickness controlling method Pending JPS56141907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4434980A JPS56141907A (en) 1980-04-04 1980-04-04 Thickness controlling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4434980A JPS56141907A (en) 1980-04-04 1980-04-04 Thickness controlling method

Publications (1)

Publication Number Publication Date
JPS56141907A true JPS56141907A (en) 1981-11-05

Family

ID=12689026

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4434980A Pending JPS56141907A (en) 1980-04-04 1980-04-04 Thickness controlling method

Country Status (1)

Country Link
JP (1) JPS56141907A (en)

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