JPS56165504A - Rolling method for sheet material - Google Patents

Rolling method for sheet material

Info

Publication number
JPS56165504A
JPS56165504A JP6770380A JP6770380A JPS56165504A JP S56165504 A JPS56165504 A JP S56165504A JP 6770380 A JP6770380 A JP 6770380A JP 6770380 A JP6770380 A JP 6770380A JP S56165504 A JPS56165504 A JP S56165504A
Authority
JP
Japan
Prior art keywords
rolled
sheet material
hereby
rolling mill
fish tail
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
JP6770380A
Other languages
Japanese (ja)
Inventor
Hiroshi Awatsuhara
Sukefumi Tsumura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6770380A priority Critical patent/JPS56165504A/en
Publication of JPS56165504A publication Critical patent/JPS56165504A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To diminish the amount of fish tail to be generated at the top and bottom ends of a material to be rolled, at carrying out an edging pass, by making the cross section of the material to be rolled, keeping a variation of rate of thickness difference larger than a prescribed value, into a domed shape.
CONSTITUTION: A sheet material 1 is rolled by a horizontal rolling mill R1 with work rolls 3, 3' whose diameter at both ends is made larger than that of the middle zone; hereby, the cross section of the sheet material 1 is formed into a domed shape. The material 1 is then subjected to an edging pass carried out by a vertical rolling mill E1 with vertical rolls 2; hereby, the breadth of material 1 is reduced to a prescribed size. The material 1, wherein a fish tail is formed as a result of the said edging pass, is then rolled by the next rolling mill R2 with work rolls 3, 3' keeping a rolling reduction so as to hold the final variation of the rate of thickness difference at ≥0.2; hereby, a sheet material with a small fish tail is obtained.
COPYRIGHT: (C)1981,JPO&Japio
JP6770380A 1980-05-23 1980-05-23 Rolling method for sheet material Pending JPS56165504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6770380A JPS56165504A (en) 1980-05-23 1980-05-23 Rolling method for sheet material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6770380A JPS56165504A (en) 1980-05-23 1980-05-23 Rolling method for sheet material

Publications (1)

Publication Number Publication Date
JPS56165504A true JPS56165504A (en) 1981-12-19

Family

ID=13352573

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6770380A Pending JPS56165504A (en) 1980-05-23 1980-05-23 Rolling method for sheet material

Country Status (1)

Country Link
JP (1) JPS56165504A (en)

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