JPS5639111A - Controlling method for coiling temperature at hot rolling of rod material - Google Patents

Controlling method for coiling temperature at hot rolling of rod material

Info

Publication number
JPS5639111A
JPS5639111A JP11479579A JP11479579A JPS5639111A JP S5639111 A JPS5639111 A JP S5639111A JP 11479579 A JP11479579 A JP 11479579A JP 11479579 A JP11479579 A JP 11479579A JP S5639111 A JPS5639111 A JP S5639111A
Authority
JP
Japan
Prior art keywords
temperature
rod material
mill
finishing mill
time
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
JP11479579A
Other languages
Japanese (ja)
Other versions
JPS6350085B2 (en
Inventor
Yasuhisa Abe
Masaaki Murakami
Manabu Ogura
Tatsuro Sato
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 JP11479579A priority Critical patent/JPS5639111A/en
Publication of JPS5639111A publication Critical patent/JPS5639111A/en
Publication of JPS6350085B2 publication Critical patent/JPS6350085B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
    • 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
    • B21B2045/0236—Laying heads for overlapping rings on cooling conveyor
    • 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
    • B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

PURPOSE:To cool the hot rolled rod material exactly to the aim coiling temperature without time- lag, by forecasting the mill's run-out side temperature from the actually measured rod material's temperature at the feed-in side of the finishing mill, and by controlling the amount of the cooling water according to the forecasted run-out side temperature, in case of cooling the hot rolled rod material. CONSTITUTION:In case of finish rolling the rod material by the hot finishing mill 5, the rod temperature T1(t) at the feed-in side of the finishing mill 5 at the time (t) is measured by the thermometer 10. From the correlation between the inlet and outlet temperatures of the finishing mill 5, the forecasted temperature T2'(t+DELTAt12) of the rod material on the run-out side of the finishing mill 5 after passing the time DELTAt12 required by the rod material in passing through the finishing mill 5, that is the time (t+DELTAt12), is obtained. Next, from the correlatin model for the mill's run-out side temperature, the amount of the cooling water, and the coiling temperature, the temperature T3'(t+DELTAt13) after the time DELTAt13 required by the rod material from running out of the mill till arriving at the coiler 7 is forecasted. The amount of the cooling water Q(t+DELTAt13) required in making above forecasted temperature to be equal to the aim coiling temperature T3 is calculated, and this amount of cooling water is supplied from the water cooling device 6 for cooling the rod material.
JP11479579A 1979-09-07 1979-09-07 Controlling method for coiling temperature at hot rolling of rod material Granted JPS5639111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11479579A JPS5639111A (en) 1979-09-07 1979-09-07 Controlling method for coiling temperature at hot rolling of rod material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11479579A JPS5639111A (en) 1979-09-07 1979-09-07 Controlling method for coiling temperature at hot rolling of rod material

Publications (2)

Publication Number Publication Date
JPS5639111A true JPS5639111A (en) 1981-04-14
JPS6350085B2 JPS6350085B2 (en) 1988-10-06

Family

ID=14646872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11479579A Granted JPS5639111A (en) 1979-09-07 1979-09-07 Controlling method for coiling temperature at hot rolling of rod material

Country Status (1)

Country Link
JP (1) JPS5639111A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58125308A (en) * 1982-01-19 1983-07-26 Mitsubishi Electric Corp Device for controlling temperature of wire rod

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58125308A (en) * 1982-01-19 1983-07-26 Mitsubishi Electric Corp Device for controlling temperature of wire rod

Also Published As

Publication number Publication date
JPS6350085B2 (en) 1988-10-06

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