JPS55106615A - Rolling method with controlled rolling - Google Patents

Rolling method with controlled rolling

Info

Publication number
JPS55106615A
JPS55106615A JP1480279A JP1480279A JPS55106615A JP S55106615 A JPS55106615 A JP S55106615A JP 1480279 A JP1480279 A JP 1480279A JP 1480279 A JP1480279 A JP 1480279A JP S55106615 A JPS55106615 A JP S55106615A
Authority
JP
Japan
Prior art keywords
steel sheet
rolling
temperature
controlled
cooling
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
JP1480279A
Other languages
Japanese (ja)
Inventor
Kazuya Tsubota
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP1480279A priority Critical patent/JPS55106615A/en
Publication of JPS55106615A publication Critical patent/JPS55106615A/en
Pending legal-status Critical Current

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  • Control Of Metal Rolling (AREA)

Abstract

PURPOSE: To uniformly cooling entire surface of the steel sheet, and to manufacture the steel sheet of excellent strength and toughness, by applying the controlled cooling to the material steel sheet in the longitudinal direction, at the rolling method with the controlled rolling for repressing the temperature of the final pass to somewhat low temperature.
CONSTITUTION: At rolling the steel material 10 with the rolling mill 12, the steel sheet 10, being carried by the table roller 18, is cooled uniformly all over the pass with the jet stream of cooling water jetted from the water jet nozzles 15, 17, of coolers 14, 16. The final finishing temperature is controlled to somewhat low specified temperature, on purpose to refine the structure of the steel sheet containing Nb, V, etc., and to greatly improve the strength and toughness. Hereupon, the longitudinal temperature distribution of the steel sheet 10 is uniformized by controlling the water cooling of the steel sheet by changing the flow rate of water along the longitudinal direction of the steel sheet 10. Hereby, the entire steel sheet 10 including both edges is finished at uniform temperature, and its strength and toughness are uniformly, greatly improved.
COPYRIGHT: (C)1980,JPO&Japio
JP1480279A 1979-02-09 1979-02-09 Rolling method with controlled rolling Pending JPS55106615A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1480279A JPS55106615A (en) 1979-02-09 1979-02-09 Rolling method with controlled rolling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1480279A JPS55106615A (en) 1979-02-09 1979-02-09 Rolling method with controlled rolling

Publications (1)

Publication Number Publication Date
JPS55106615A true JPS55106615A (en) 1980-08-15

Family

ID=11871166

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1480279A Pending JPS55106615A (en) 1979-02-09 1979-02-09 Rolling method with controlled rolling

Country Status (1)

Country Link
JP (1) JPS55106615A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100976758B1 (en) 2007-02-26 2010-08-18 제이에프이 스틸 가부시키가이샤 Device and method for cooling hot-rolled steel strip

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100976758B1 (en) 2007-02-26 2010-08-18 제이에프이 스틸 가부시키가이샤 Device and method for cooling hot-rolled steel strip

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