JPS55156612A - Cooling method for undersurface of steel sheet - Google Patents

Cooling method for undersurface of steel sheet

Info

Publication number
JPS55156612A
JPS55156612A JP6270579A JP6270579A JPS55156612A JP S55156612 A JPS55156612 A JP S55156612A JP 6270579 A JP6270579 A JP 6270579A JP 6270579 A JP6270579 A JP 6270579A JP S55156612 A JPS55156612 A JP S55156612A
Authority
JP
Japan
Prior art keywords
water
water tank
cooling
steel sheet
sheet
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.)
Granted
Application number
JP6270579A
Other languages
Japanese (ja)
Other versions
JPS5922605B2 (en
Inventor
Yasushi Ueno
Shuzo Fukuda
Takao Noguchi
Hiroshi Kamio
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 Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP6270579A priority Critical patent/JPS5922605B2/en
Publication of JPS55156612A publication Critical patent/JPS55156612A/en
Publication of JPS5922605B2 publication Critical patent/JPS5922605B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0233—Spray nozzles, Nozzle headers; Spray systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To effeciently carry out the uniform cooling with a little amount of water, and to reduce the cooling distorsion and the material irregularity, by spouting water from the underwater nozzle to form the water column above the water surface, by cooling the steel sheet's undersurface with this water column, and by permitting the water to fall down into the water tank after colliding with the steel sheet. CONSTITUTION:A rectangular water tank 4 is installed below and between the carrier rollers 9, and several upward nozzles 5 are arranged in the bottom of the water tank 4 along the sheet breadth. The length of the water tank 4 in the direction of sheet breadth is made longer than the maximum sheet breadth in order to permit the cooling water forming laminar flow on top surface of the steel sheet 1 to fall from the edge of sheet breadth down into the water tank 4. After previously filling up to full the water tank 4 with water supplied from the pipe line 11, the water spout from the nozzle 5 is started through the header 10 so as to match with the timing of pass of the steel sheet 1, and then, the water supply from the pipe line 11 is stopped. After starting the cooling, the flooded condition of the water tank 4 is kept by only the cooling water returning to the water tank 4, and the excess water overflows from the upper edge 8 of the water tank 4 and falls down into the pit.
JP6270579A 1979-05-23 1979-05-23 Method for cooling the bottom surface of steel plates Expired JPS5922605B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6270579A JPS5922605B2 (en) 1979-05-23 1979-05-23 Method for cooling the bottom surface of steel plates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6270579A JPS5922605B2 (en) 1979-05-23 1979-05-23 Method for cooling the bottom surface of steel plates

Publications (2)

Publication Number Publication Date
JPS55156612A true JPS55156612A (en) 1980-12-05
JPS5922605B2 JPS5922605B2 (en) 1984-05-28

Family

ID=13207989

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6270579A Expired JPS5922605B2 (en) 1979-05-23 1979-05-23 Method for cooling the bottom surface of steel plates

Country Status (1)

Country Link
JP (1) JPS5922605B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552448A1 (en) * 1983-09-27 1985-03-29 Nippon Kokan Kk APPARATUS FOR CONTINUOUSLY COOLING A HEATED METAL PLATE

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552448A1 (en) * 1983-09-27 1985-03-29 Nippon Kokan Kk APPARATUS FOR CONTINUOUSLY COOLING A HEATED METAL PLATE
DE3435501A1 (en) * 1983-09-27 1985-04-25 Nippon Kokan K.K., Tokio/Tokyo DEVICE FOR CONTINUOUSLY COOLING A WARMED, HORIZONTAL METAL PLATE
US4570453A (en) * 1983-09-27 1986-02-18 Nippon Kokan Kabushiki Kaisha Apparatus for continuously cooling heated metal plate
DE3435501C2 (en) * 1983-09-27 1986-04-17 Nippon Kokan K.K., Tokio/Tokyo Device for the continuous cooling of a heated, horizontally lying metal plate

Also Published As

Publication number Publication date
JPS5922605B2 (en) 1984-05-28

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