JPS5510355A - Cooling method of hot rolled coil - Google Patents

Cooling method of hot rolled coil

Info

Publication number
JPS5510355A
JPS5510355A JP8367578A JP8367578A JPS5510355A JP S5510355 A JPS5510355 A JP S5510355A JP 8367578 A JP8367578 A JP 8367578A JP 8367578 A JP8367578 A JP 8367578A JP S5510355 A JPS5510355 A JP S5510355A
Authority
JP
Japan
Prior art keywords
cooling
water
water cooling
hot
suppress
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
JP8367578A
Other languages
Japanese (ja)
Inventor
Keizo Fujiwara
Taketoshi Taira
Yasutaka Nawata
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 Corp
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP8367578A priority Critical patent/JPS5510355A/en
Publication of JPS5510355A publication Critical patent/JPS5510355A/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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/667—Quenching devices for spray quenching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To improve the efficiency of pickling process by water cooling the hot rolled coils under the specific conditions to suppress the scale of the edges and central part to the same amount. CONSTITUTION:Water cooling is started from the plural water injection nozzles 3 provided above and below a conveyor 1 which conveys the hot-rolled steel plate coils having been coiled at coiling temperatures within a range from 650 to 750 deg.C in hot rolling to a cooling yard within 60 minutes after coiling. The cooling is accomplished under the water cooling conditions wherein the water cooling time (t) and cooling water volume (Q) per one side of coil end faces satisfy formula 1 to suppress the amount of scale formation at the strip edges and strip center part to about the same amount.
JP8367578A 1978-07-10 1978-07-10 Cooling method of hot rolled coil Pending JPS5510355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8367578A JPS5510355A (en) 1978-07-10 1978-07-10 Cooling method of hot rolled coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8367578A JPS5510355A (en) 1978-07-10 1978-07-10 Cooling method of hot rolled coil

Publications (1)

Publication Number Publication Date
JPS5510355A true JPS5510355A (en) 1980-01-24

Family

ID=13809048

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8367578A Pending JPS5510355A (en) 1978-07-10 1978-07-10 Cooling method of hot rolled coil

Country Status (1)

Country Link
JP (1) JPS5510355A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2674540A3 (en) * 1991-03-28 1992-10-02 Lorraine Laminage Heat treatment of reels of flat metal products and plant for its use
US6776857B2 (en) 2000-12-27 2004-08-17 Posco Method and device for manufacturing a hot rolled steel strip

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2674540A3 (en) * 1991-03-28 1992-10-02 Lorraine Laminage Heat treatment of reels of flat metal products and plant for its use
US6776857B2 (en) 2000-12-27 2004-08-17 Posco Method and device for manufacturing a hot rolled steel strip

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