JPS56146830A - Cooling device for hot rolled steel sheet - Google Patents

Cooling device for hot rolled steel sheet

Info

Publication number
JPS56146830A
JPS56146830A JP4810880A JP4810880A JPS56146830A JP S56146830 A JPS56146830 A JP S56146830A JP 4810880 A JP4810880 A JP 4810880A JP 4810880 A JP4810880 A JP 4810880A JP S56146830 A JPS56146830 A JP S56146830A
Authority
JP
Japan
Prior art keywords
steel sheet
cooling
advancing direction
water
onto
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
JP4810880A
Other languages
Japanese (ja)
Inventor
Shinji Seze
Katsumi Makihara
Kenichi Yanagi
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP4810880A priority Critical patent/JPS56146830A/en
Publication of JPS56146830A publication Critical patent/JPS56146830A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling

Abstract

PURPOSE:To provide a cooling device of improved uniform cooling and cooling capacity for hot-rolled steel sheets by providing plural slit nozzle for supplying cooling water provided with angles so as to spread in the width direction of the steel sheet with respect to the advancing direction of the steel sheet after hot rolling. CONSTITUTION:While a steel sheet 3 after hot rolling is traveling in an advancing direction 4 at a predetermined cooling speed, cooling water is dropped in the form of film from slit nozzles 10 onto the steel sheet 3, so that the steel sheet 3 is cooled. In this case, the cooling waer 12 is first flowed in the width direction of the steel sheet 3 at the front face of the cooling water film 11 falling from the nozzles 10 onto the steel sheet 3 under traveling, thence it is flowed between the water films 11 along the advancing direction 4 of the steel sheet 3 so as to prevent the thickness of the water films from increasing. Hence, disturbing of the collision of the water films 11 dropping in succession onto the steel sheet 3 against the steel sheet 3 does not occur and the decrease in the cooling capacity for the steel sheet 3 is prevented. It is necessary to set the above-described nozzles 10 at angles of 45-90 deg. with respect to the advancing direction of the steel sheet 3.
JP4810880A 1980-04-14 1980-04-14 Cooling device for hot rolled steel sheet Pending JPS56146830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4810880A JPS56146830A (en) 1980-04-14 1980-04-14 Cooling device for hot rolled steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4810880A JPS56146830A (en) 1980-04-14 1980-04-14 Cooling device for hot rolled steel sheet

Publications (1)

Publication Number Publication Date
JPS56146830A true JPS56146830A (en) 1981-11-14

Family

ID=12794112

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4810880A Pending JPS56146830A (en) 1980-04-14 1980-04-14 Cooling device for hot rolled steel sheet

Country Status (1)

Country Link
JP (1) JPS56146830A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60206516A (en) * 1984-03-30 1985-10-18 Nippon Steel Corp Cooling device of thick steel plate

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53129109A (en) * 1977-04-19 1978-11-10 Nippon Steel Corp Cooling method for metal plate of high temperature

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53129109A (en) * 1977-04-19 1978-11-10 Nippon Steel Corp Cooling method for metal plate of high temperature

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60206516A (en) * 1984-03-30 1985-10-18 Nippon Steel Corp Cooling device of thick steel plate

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