GB1453489A - Processing of billets slabs strips and other metal workpieces - Google Patents

Processing of billets slabs strips and other metal workpieces

Info

Publication number
GB1453489A
GB1453489A GB1033674A GB1033674A GB1453489A GB 1453489 A GB1453489 A GB 1453489A GB 1033674 A GB1033674 A GB 1033674A GB 1033674 A GB1033674 A GB 1033674A GB 1453489 A GB1453489 A GB 1453489A
Authority
GB
United Kingdom
Prior art keywords
strip
along
path
inductors
metal workpieces
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
GB1033674A
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.)
Electricity Council
Original Assignee
Electricity Council
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 Electricity Council filed Critical Electricity Council
Priority to GB1033674A priority Critical patent/GB1453489A/en
Publication of GB1453489A publication Critical patent/GB1453489A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • 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
    • B21B45/004—Heating the product
    • 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
    • F27B9/14—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
    • F27B9/222—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 the path comprising a section specially adapted for effecting equalisation of the temperature of the charge
    • 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
    • B21B1/22—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 plates, strips, bands or sheets of indefinite length
    • B21B1/24—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B21B1/26—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • B21B39/12—Arrangement or installation of roller tables in relation to a roll stand

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • General Engineering & Computer Science (AREA)
  • General Induction Heating (AREA)

Abstract

1453489 Heating metal workpieces ELECTRICITY COUNCIL 9 June 1975 [7 March 1974] 10336/74 Heading B3M [Also in Division H5] Slabs, billets, or other metal workpieces moving along a path are heated by controlled switching of one or more induction heaters located along the path, so that the heat input to the workpiece varies along its length in a predetermined non-uniform manner. The figure shows reheating of a strip 11 passing from a reheating furnace to a roughing mill, or between roughing and finishing stages, on a roller table 11. Induction heaters 12 are located between the rollers 10, and are cyclically switched on and off in sequence in accordance with the location and the known or measured speed of the strip so as to compensate for sinusoidal temperature distribution along the strip caused by the supports on which the strip rests in the furnace. The heat input may also compensate for a temperature gradient along the strip. Additional inductors or lamination packs may be located above or below the strip path to modify the flux path and hence the distribution of heating. The switching may be effected by a mechanical commutator or by solid state switches. The inductors may employ U-shaped cores having a single slot between two upstanding teeth, each coil being wound with a turn extending along a slot in one core and back along a slot in an adjacent core, or E-shaped cores, each coil being wound around a central tooth. Fig. 3 shows a laminated core 13 with slots 14 in which inductors 15 are wound.
GB1033674A 1974-03-07 1974-03-07 Processing of billets slabs strips and other metal workpieces Expired GB1453489A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1033674A GB1453489A (en) 1974-03-07 1974-03-07 Processing of billets slabs strips and other metal workpieces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1033674A GB1453489A (en) 1974-03-07 1974-03-07 Processing of billets slabs strips and other metal workpieces

Publications (1)

Publication Number Publication Date
GB1453489A true GB1453489A (en) 1976-10-20

Family

ID=9965988

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1033674A Expired GB1453489A (en) 1974-03-07 1974-03-07 Processing of billets slabs strips and other metal workpieces

Country Status (1)

Country Link
GB (1) GB1453489A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507297A1 (en) * 1981-06-09 1982-12-10 Cem Comp Electro Mec PROCESS FOR REGULATING THE TEMPERATURE OF FLAT METAL PRODUCTS SUBJECT TO ROLLING, IN PARTICULAR FOR DELETING BLACK TRACES, AND DEVICE FOR CARRYING OUT SAID METHOD
FR2523395A1 (en) * 1982-03-12 1983-09-16 Cem Comp Electro Mec METHOD AND DEVICE FOR ADJUSTING THE AVERAGE INDUCED HEATING POWER IN A CONDUCTIVE FLAT CONTAINING ELECTROMAGNETICALLY IN CONTACTLESS POSITION
EP0810044A1 (en) * 1996-05-28 1997-12-03 Nkk Corporation Method for making hot-rolled steel sheet and apparatus therefor
EP3094425B1 (en) 2014-01-17 2018-06-20 Danieli & C. Officine Meccaniche, S.p.A. Plant and method for the production of metal products
CN112453768A (en) * 2020-11-05 2021-03-09 宁波晶成机械制造有限公司 Electromagnetic induction heating device for preheating welding workpiece

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507297A1 (en) * 1981-06-09 1982-12-10 Cem Comp Electro Mec PROCESS FOR REGULATING THE TEMPERATURE OF FLAT METAL PRODUCTS SUBJECT TO ROLLING, IN PARTICULAR FOR DELETING BLACK TRACES, AND DEVICE FOR CARRYING OUT SAID METHOD
EP0067759A1 (en) * 1981-06-09 1982-12-22 Alsthom Apparatus for treating metallic flat products first heated non-homogeneously in an oven and then undergoing a hot-rolling process in order to erase black marks
FR2523395A1 (en) * 1982-03-12 1983-09-16 Cem Comp Electro Mec METHOD AND DEVICE FOR ADJUSTING THE AVERAGE INDUCED HEATING POWER IN A CONDUCTIVE FLAT CONTAINING ELECTROMAGNETICALLY IN CONTACTLESS POSITION
EP0090676A1 (en) * 1982-03-12 1983-10-05 Alsthom Method and devices for regulating the mean induced heating power in a flat conductive product maintained in position electromagnetically without contact
EP0810044A1 (en) * 1996-05-28 1997-12-03 Nkk Corporation Method for making hot-rolled steel sheet and apparatus therefor
US5927118A (en) * 1996-05-28 1999-07-27 Nkk Corporation Method for making hot-rolled steel sheet and apparatus therefor
EP3094425B1 (en) 2014-01-17 2018-06-20 Danieli & C. Officine Meccaniche, S.p.A. Plant and method for the production of metal products
CN112453768A (en) * 2020-11-05 2021-03-09 宁波晶成机械制造有限公司 Electromagnetic induction heating device for preheating welding workpiece

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940609