JPS5695405A - Preventing method for pit flaw of steel strip in continuous cold rolling pass - Google Patents

Preventing method for pit flaw of steel strip in continuous cold rolling pass

Info

Publication number
JPS5695405A
JPS5695405A JP17050779A JP17050779A JPS5695405A JP S5695405 A JPS5695405 A JP S5695405A JP 17050779 A JP17050779 A JP 17050779A JP 17050779 A JP17050779 A JP 17050779A JP S5695405 A JPS5695405 A JP S5695405A
Authority
JP
Japan
Prior art keywords
steel strip
welding
cold rolling
bead
cleaning solution
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
JP17050779A
Other languages
Japanese (ja)
Inventor
Hiroyuki Sato
Shoichi Tanaka
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 Nisshin Co Ltd
Original Assignee
Nisshin Steel 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 Nisshin Steel Co Ltd filed Critical Nisshin Steel Co Ltd
Priority to JP17050779A priority Critical patent/JPS5695405A/en
Publication of JPS5695405A publication Critical patent/JPS5695405A/en
Pending legal-status Critical Current

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  • Metal Rolling (AREA)

Abstract

PURPOSE: To prevent generation of pit flaws in the steel strip, by installing a cleaning apparatus for removing the dross generated by the welding work, at cold rolling the steel strip being successively jointed by the welding.
CONSTITUTION: The steel strip 1 is welded by the welding machine 4 and is fed to the cold rolling mill group 10W13 through the bead trimmer 5, the looper 6 and the feed roll 9; hereupon, the cleaning solution jetter 8 and the brushing roll 7 are arranged between the looper 6 and the feed roll 9. The cleaning solution jetter 8 jets the cleaning solution at 40°C or higher temperatures against front and back surfaces of the steel strip to be fed to the mill groups 10W13. The brushing roll 7 comprises one or plural couples of upper and lower brushing rolls in order to brush up front and back surfaces of the steel strip. Hereby, the dross such as the trimming scrap of welding bead caused when the welding bead is trimmed away from the weld zone of the steel strip 1 by the bead trimmer 5, and the spatter of weld metal, both sticking on the steel strip 1, is cleaned away.
COPYRIGHT: (C)1981,JPO&Japio
JP17050779A 1979-12-28 1979-12-28 Preventing method for pit flaw of steel strip in continuous cold rolling pass Pending JPS5695405A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17050779A JPS5695405A (en) 1979-12-28 1979-12-28 Preventing method for pit flaw of steel strip in continuous cold rolling pass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17050779A JPS5695405A (en) 1979-12-28 1979-12-28 Preventing method for pit flaw of steel strip in continuous cold rolling pass

Publications (1)

Publication Number Publication Date
JPS5695405A true JPS5695405A (en) 1981-08-01

Family

ID=15906226

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17050779A Pending JPS5695405A (en) 1979-12-28 1979-12-28 Preventing method for pit flaw of steel strip in continuous cold rolling pass

Country Status (1)

Country Link
JP (1) JPS5695405A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59104202A (en) * 1982-12-06 1984-06-16 Nisshin Steel Co Ltd Cold rolling method of ferritic stainless steel
JP2008126229A (en) * 2006-11-16 2008-06-05 Nippon Steel Corp Continuous cold rolling equipment and its operating method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS502476A (en) * 1973-05-07 1975-01-11
JPS5397948A (en) * 1977-02-08 1978-08-26 Mitsubishi Heavy Ind Ltd Coil connector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS502476A (en) * 1973-05-07 1975-01-11
JPS5397948A (en) * 1977-02-08 1978-08-26 Mitsubishi Heavy Ind Ltd Coil connector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59104202A (en) * 1982-12-06 1984-06-16 Nisshin Steel Co Ltd Cold rolling method of ferritic stainless steel
JPH0375241B2 (en) * 1982-12-06 1991-11-29
JP2008126229A (en) * 2006-11-16 2008-06-05 Nippon Steel Corp Continuous cold rolling equipment and its operating method

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