JPS5527420A - Treating method before cold rolling of thin plate - Google Patents

Treating method before cold rolling of thin plate

Info

Publication number
JPS5527420A
JPS5527420A JP9906678A JP9906678A JPS5527420A JP S5527420 A JPS5527420 A JP S5527420A JP 9906678 A JP9906678 A JP 9906678A JP 9906678 A JP9906678 A JP 9906678A JP S5527420 A JPS5527420 A JP S5527420A
Authority
JP
Japan
Prior art keywords
rolling
thin plate
trailing end
cold rolling
rolling material
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
JP9906678A
Other languages
Japanese (ja)
Inventor
Bunji Furuyama
Yatsuhiro Wakita
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 JP9906678A priority Critical patent/JPS5527420A/en
Publication of JPS5527420A publication Critical patent/JPS5527420A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent defects of tearing at the trailing end of a thin plate rolling material which occurs at the time of pass-through by bevelling the rectangular parts at the trailing end of the rolling material prior to cold rolling of rollilg material.
CONSTITUTION: Prior to cold rolling with tandem mills, both or one of the rectangular parts of the trailing end of a rolling material 1 is bevelled to taper form by using tools such as of cutting, fusion cutting, grindstone, etc. The sizes of bevelling L, H are suitably determined from the relations between the plate width W and plate thickness T of the rolling material 1. As a result, there will be no more tearing at the trailing end of the thin plate rolling material at the time of pass-through of rolling and no more chances for giving recessed flaws to rolls, thus the rolled materil free from any flaws on the surface is produced.
COPYRIGHT: (C)1980,JPO&Japio
JP9906678A 1978-08-16 1978-08-16 Treating method before cold rolling of thin plate Pending JPS5527420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9906678A JPS5527420A (en) 1978-08-16 1978-08-16 Treating method before cold rolling of thin plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9906678A JPS5527420A (en) 1978-08-16 1978-08-16 Treating method before cold rolling of thin plate

Publications (1)

Publication Number Publication Date
JPS5527420A true JPS5527420A (en) 1980-02-27

Family

ID=14237422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9906678A Pending JPS5527420A (en) 1978-08-16 1978-08-16 Treating method before cold rolling of thin plate

Country Status (1)

Country Link
JP (1) JPS5527420A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111515256A (en) * 2020-04-29 2020-08-11 攀钢集团攀枝花钢钒有限公司 Method for controlling iron sheet sticking of head vertical roll of steel rail universal mill
CN111530939A (en) * 2020-05-11 2020-08-14 攀钢集团攀枝花钢钒有限公司 Method for controlling defect of steel rail rolling head
CN111530938A (en) * 2020-05-11 2020-08-14 攀钢集团攀枝花钢钒有限公司 Method for controlling defect of steel rail rolling head splitting

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111515256A (en) * 2020-04-29 2020-08-11 攀钢集团攀枝花钢钒有限公司 Method for controlling iron sheet sticking of head vertical roll of steel rail universal mill
CN111530939A (en) * 2020-05-11 2020-08-14 攀钢集团攀枝花钢钒有限公司 Method for controlling defect of steel rail rolling head
CN111530938A (en) * 2020-05-11 2020-08-14 攀钢集团攀枝花钢钒有限公司 Method for controlling defect of steel rail rolling head splitting
CN111530938B (en) * 2020-05-11 2021-09-07 攀钢集团攀枝花钢钒有限公司 Method for controlling defect of steel rail rolling head splitting
CN111530939B (en) * 2020-05-11 2021-09-07 攀钢集团攀枝花钢钒有限公司 Method for controlling defect of steel rail rolling head

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