GB1433280A - Heating steel slabs - Google Patents

Heating steel slabs

Info

Publication number
GB1433280A
GB1433280A GB4918974A GB4918974A GB1433280A GB 1433280 A GB1433280 A GB 1433280A GB 4918974 A GB4918974 A GB 4918974A GB 4918974 A GB4918974 A GB 4918974A GB 1433280 A GB1433280 A GB 1433280A
Authority
GB
United Kingdom
Prior art keywords
furnace
slabs
melting
scale
temperature
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.)
Expired
Application number
GB4918974A
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.)
Thyssen AG
Original Assignee
August Thyssen Huette 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 August Thyssen Huette AG filed Critical August Thyssen Huette AG
Publication of GB1433280A publication Critical patent/GB1433280A/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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/22—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on rails, e.g. under the action of scrapers or pushers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Tunnel Furnaces (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Gasification And Melting Of Waste (AREA)

Abstract

1433280 Heating steel slabs AUGUST THYSSEN-HUTTE AG 13 Nov 1974 [20 Dec 1973] 49189/74 Heading C7D Steel slabs are heated to rolling temperature by heating in a first pusher-type furnace to a temperature below the scale-melting temperature, e.g. to 1340‹C, and transferring to a second pusher-type furnace where the slabs are heated to a temperature causing scale-melting, e.g. 1400‹C. The first furnace has upper and lower burners, and the second furnace upper burners only, the fluid slag formed in the second furnace by melting the scale being removed by auxilliary burners and slag runners. The slabs may be of Si-steel and may be pre-rolled between the two furnaces.
GB4918974A 1973-12-20 1974-11-13 Heating steel slabs Expired GB1433280A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2363476A DE2363476C2 (en) 1973-12-20 1973-12-20 StoBofen system for heating steel slabs such as transformer steel up to a rolling temperature of around 1400 degrees C.

Publications (1)

Publication Number Publication Date
GB1433280A true GB1433280A (en) 1976-04-22

Family

ID=5901374

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4918974A Expired GB1433280A (en) 1973-12-20 1974-11-13 Heating steel slabs

Country Status (7)

Country Link
JP (1) JPS536084B2 (en)
BE (1) BE822485A (en)
DE (1) DE2363476C2 (en)
FR (1) FR2255563B1 (en)
GB (1) GB1433280A (en)
IT (1) IT1023223B (en)
SE (1) SE419348B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2706345A1 (en) * 1977-02-11 1978-08-17 Mannesmann Ag OVEN ARRANGEMENT FOR HEATING SLABS
DE4311150C1 (en) * 1993-04-05 1993-12-23 Thyssen Stahl Ag Preheating concast slab in two stages prior to hot rolling - to prevent edge cracking in final strip

Also Published As

Publication number Publication date
JPS536084B2 (en) 1978-03-04
SE419348B (en) 1981-07-27
FR2255563A1 (en) 1975-07-18
SE7414252L (en) 1975-06-23
DE2363476B1 (en) 1974-11-14
IT1023223B (en) 1978-05-10
BE822485A (en) 1975-03-14
FR2255563B1 (en) 1978-12-29
DE2363476C2 (en) 1975-06-26
JPS5095112A (en) 1975-07-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee