EP0875304A3 - Method and cooling aggregate for cooling rolling stock at rolling-temperature, especially hot wide strip - Google Patents

Method and cooling aggregate for cooling rolling stock at rolling-temperature, especially hot wide strip Download PDF

Info

Publication number
EP0875304A3
EP0875304A3 EP98107703A EP98107703A EP0875304A3 EP 0875304 A3 EP0875304 A3 EP 0875304A3 EP 98107703 A EP98107703 A EP 98107703A EP 98107703 A EP98107703 A EP 98107703A EP 0875304 A3 EP0875304 A3 EP 0875304A3
Authority
EP
European Patent Office
Prior art keywords
cooling
pressure
rolling
amount
convection
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
EP98107703A
Other languages
German (de)
French (fr)
Other versions
EP0875304B1 (en
EP0875304A2 (en
Inventor
Meinert Dipl.-Ing. Meyer
Uwe Dipl.-Ing. Plociennik
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.)
SMS Siemag AG
Original Assignee
SMS Demag AG
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 SMS Demag AG filed Critical SMS Demag AG
Publication of EP0875304A2 publication Critical patent/EP0875304A2/en
Publication of EP0875304A3 publication Critical patent/EP0875304A3/en
Application granted granted Critical
Publication of EP0875304B1 publication Critical patent/EP0875304B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21B45/0218—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/04—Ferritic rolling
    • 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

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)
  • Metal Rolling (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

Cooling of a rolled product (1) is by forced convection, with pressurised water stream in a pressure space (10) and a convection space (13). The intensity of forced convection is controlled by individually adjustable parameters such as the duration of stay of the product in the spaces (10, 13), as well as the amount, pressure and flow velocity of the cooling medium. The amount of heat taken from the product is preferably such that a safe distance from the boiling point is attained, and unstable film evaporation is avoided. The corresponding apparatus includes an amount and pressure controllable nozzle gap (11) for entry of the cooling medium into the pressure space (10), and diffusor (12) with means (16) for extraction of the cooling medium. A constriction (33) is located between the pressure and convection spaces.
EP98107703A 1997-05-02 1998-04-28 Method and cooling aggregate for cooling rolling stock at rolling-temperature, especially hot wide strip Expired - Lifetime EP0875304B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19718530 1997-05-02
DE19718530A DE19718530B4 (en) 1997-05-02 1997-05-02 Process for cooling of rolling-cold rolling stock and apparatus for carrying out the method and use of the apparatus

Publications (3)

Publication Number Publication Date
EP0875304A2 EP0875304A2 (en) 1998-11-04
EP0875304A3 true EP0875304A3 (en) 2002-01-02
EP0875304B1 EP0875304B1 (en) 2003-12-10

Family

ID=7828395

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98107703A Expired - Lifetime EP0875304B1 (en) 1997-05-02 1998-04-28 Method and cooling aggregate for cooling rolling stock at rolling-temperature, especially hot wide strip

Country Status (4)

Country Link
EP (1) EP0875304B1 (en)
AT (1) ATE255965T1 (en)
DE (2) DE19718530B4 (en)
ES (1) ES2212167T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10215118C1 (en) * 2002-04-05 2003-06-12 Rainer Menge Device for cooling heat-treated wires comprises a cooling nozzle having a nozzle body in the form of a central part containing a wire feeding channel, the nozzle and coolant feeding channels and removing channels
DE102008032932A1 (en) * 2008-07-12 2010-01-14 Sms Siemag Aktiengesellschaft Method for longitudinally guiding a rolling stock, in particular a hot-rolled steel strip and hot rolling mill for carrying out the method
DE102012211454A1 (en) 2012-07-02 2014-01-02 Sms Siemag Ag Method and device for cooling surfaces in casting plants, rolling mills or other strip processing lines
DE102012223848A1 (en) 2012-12-19 2014-06-26 Sms Siemag Ag Apparatus and method for cooling rolling stock

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543750A1 (en) * 1974-10-04 1976-04-15 Centre Rech Metallurgique Cooling and drying box for metal strip - to sharply cool the strip during rolling
EP0266302A1 (en) * 1986-08-07 1988-05-04 Walter Dipl.-Ing. Krenn Cooling aggregate and method for cooling hotrolled rolling stock with/without direct patenting in presswater
JPS63101017A (en) * 1986-10-15 1988-05-06 Kawasaki Steel Corp Cooling device for hot steel sheet
WO1989007993A1 (en) * 1988-03-02 1989-09-08 Ashlow Engineering Limited Pressure pipe
DE4009228A1 (en) * 1990-03-22 1991-09-26 Krenn Walter Differential cooling system for profiled metal prods. e.g. rails - has controlled flows of pressurised water, some mixed with air, directed at different parts of prod.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3266328D1 (en) * 1981-05-13 1985-10-24 Florin Stahl Walzwerk Pressurised cooling pipe for the direct intensive cooling of rolling mill products
DD244298B1 (en) * 1985-12-11 1988-02-10 Florin Stahl Walzwerk HEATHER REPLACEMENT WITH RECTANGULAR CROSS SECTION FOR A PRESSURE COOLANT
DE3708128A1 (en) * 1987-03-13 1988-09-22 Krenn Walter PROCESS AND PRESSURE COOLING UNIT FOR LEADED COOLING SHAPED, HEAVY TO LIGHT, HOT, CONTINUOUS PRODUCTS OF STEEL AND METAL IN PRESSURE WATER
DE3927276A1 (en) * 1989-08-18 1991-02-21 Schloemann Siemag Ag METHOD FOR HARDENING STEEL WITH THE AID OF LIQUID COOLING MEDIA
DE4429203C2 (en) * 1994-08-18 1997-05-28 Krenn Walter Process and pressure cooling unit for cooling a continuous production item made of steel or other

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543750A1 (en) * 1974-10-04 1976-04-15 Centre Rech Metallurgique Cooling and drying box for metal strip - to sharply cool the strip during rolling
EP0266302A1 (en) * 1986-08-07 1988-05-04 Walter Dipl.-Ing. Krenn Cooling aggregate and method for cooling hotrolled rolling stock with/without direct patenting in presswater
JPS63101017A (en) * 1986-10-15 1988-05-06 Kawasaki Steel Corp Cooling device for hot steel sheet
WO1989007993A1 (en) * 1988-03-02 1989-09-08 Ashlow Engineering Limited Pressure pipe
DE4009228A1 (en) * 1990-03-22 1991-09-26 Krenn Walter Differential cooling system for profiled metal prods. e.g. rails - has controlled flows of pressurised water, some mixed with air, directed at different parts of prod.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 012, no. 340 (M - 740) 13 September 1988 (1988-09-13) *

Also Published As

Publication number Publication date
EP0875304B1 (en) 2003-12-10
EP0875304A2 (en) 1998-11-04
ATE255965T1 (en) 2003-12-15
DE59810374D1 (en) 2004-01-22
ES2212167T3 (en) 2004-07-16
DE19718530A1 (en) 1998-11-12
DE19718530B4 (en) 2005-02-03

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