EP0111985A3 - Process for cooling thin metal strips - Google Patents

Process for cooling thin metal strips Download PDF

Info

Publication number
EP0111985A3
EP0111985A3 EP83201820A EP83201820A EP0111985A3 EP 0111985 A3 EP0111985 A3 EP 0111985A3 EP 83201820 A EP83201820 A EP 83201820A EP 83201820 A EP83201820 A EP 83201820A EP 0111985 A3 EP0111985 A3 EP 0111985A3
Authority
EP
European Patent Office
Prior art keywords
degrees
phase
cooling
thin metal
metal strips
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
EP83201820A
Other languages
French (fr)
Other versions
EP0111985A2 (en
EP0111985B1 (en
Inventor
Stephan Wilmotte
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.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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
Priority claimed from BE6/47760A external-priority patent/BE895434A/en
Application filed by Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Priority to AT83201820T priority Critical patent/ATE41789T1/en
Publication of EP0111985A2 publication Critical patent/EP0111985A2/en
Publication of EP0111985A3 publication Critical patent/EP0111985A3/en
Application granted granted Critical
Publication of EP0111985B1 publication Critical patent/EP0111985B1/en
Expired 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
    • 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
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (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)
  • Secondary Cells (AREA)

Abstract

1. Process for cooling a moving thin steel strip by spraying a refrigerant onto the surface of the strip, in which the said steel strip is subjected to a low intensity cooling phase followed by a high intensity cooling phase, characterized in that the said low intensity phase is carried out with a heat exchange coefficient less than or equal to 3 kW/m**2 degrees C and in the said high intensity phase is carried out with a heat exchange coefficient greater than 3 kW/m**2 degrees C, and in that the said low intensity phase is interrupted when the strip has reached a temperature of between 600 degrees C and 350 degrees C.
EP83201820A 1982-12-21 1983-12-20 Process for cooling thin metal strips Expired EP0111985B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83201820T ATE41789T1 (en) 1982-12-21 1983-12-20 METHOD OF COOLING THIN METAL STRIPS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE6047760 1982-12-21
BE6/47760A BE895434A (en) 1982-12-21 1982-12-21 Cooling of moving thin steel strip - by low intensity and then high intensity cooling to avoid strip distortion

Publications (3)

Publication Number Publication Date
EP0111985A2 EP0111985A2 (en) 1984-06-27
EP0111985A3 true EP0111985A3 (en) 1985-08-07
EP0111985B1 EP0111985B1 (en) 1989-03-29

Family

ID=3874917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83201820A Expired EP0111985B1 (en) 1982-12-21 1983-12-20 Process for cooling thin metal strips

Country Status (3)

Country Link
EP (1) EP0111985B1 (en)
AT (1) ATE41789T1 (en)
DE (1) DE3379508D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11172401A (en) 1997-12-05 1999-06-29 Mitsubishi Heavy Ind Ltd Cooling of strip and device therefor
FR2940978B1 (en) 2009-01-09 2011-11-11 Fives Stein METHOD AND COOLING SECTION OF A METAL BAND THROUGH A PROJECTION OF A LIQUID

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1151265A (en) * 1966-08-09 1969-05-07 Olin Mathieson Apparatus for the Controlled Cooling of Metal Sheet
BE873060A (en) * 1978-12-22 1979-06-22 Centre Rech Metallurgique METHOD AND DEVICE FOR ACCELERATED COOLING OF THIN BANDS
BE880587A (en) * 1979-12-12 1980-06-12 Centre Rech Metallurgique CONTINUOUS HEAT TREATMENT PLANT FOR STEEL SHEETS
BE895434A (en) * 1982-12-21 1983-04-15 Centre Rech Metallurgique Cooling of moving thin steel strip - by low intensity and then high intensity cooling to avoid strip distortion

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58120748A (en) * 1982-01-13 1983-07-18 Nippon Steel Corp Continuous heat treatment installation for cold-rolled steel strip for working and high tensile cold-rolled steel strip

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1151265A (en) * 1966-08-09 1969-05-07 Olin Mathieson Apparatus for the Controlled Cooling of Metal Sheet
BE873060A (en) * 1978-12-22 1979-06-22 Centre Rech Metallurgique METHOD AND DEVICE FOR ACCELERATED COOLING OF THIN BANDS
BE880587A (en) * 1979-12-12 1980-06-12 Centre Rech Metallurgique CONTINUOUS HEAT TREATMENT PLANT FOR STEEL SHEETS
BE895434A (en) * 1982-12-21 1983-04-15 Centre Rech Metallurgique Cooling of moving thin steel strip - by low intensity and then high intensity cooling to avoid strip distortion

Also Published As

Publication number Publication date
DE3379508D1 (en) 1989-05-03
EP0111985A2 (en) 1984-06-27
ATE41789T1 (en) 1989-04-15
EP0111985B1 (en) 1989-03-29

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