EP0499562B1 - Virole de cylindre de coulée continue - Google Patents

Virole de cylindre de coulée continue Download PDF

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Publication number
EP0499562B1
EP0499562B1 EP92470004A EP92470004A EP0499562B1 EP 0499562 B1 EP0499562 B1 EP 0499562B1 EP 92470004 A EP92470004 A EP 92470004A EP 92470004 A EP92470004 A EP 92470004A EP 0499562 B1 EP0499562 B1 EP 0499562B1
Authority
EP
European Patent Office
Prior art keywords
rod
bores
bore
sleeve
rods
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 - Lifetime
Application number
EP92470004A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0499562A1 (fr
Inventor
Jacques Barbe
Gérard Raisson
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 Stahl AG
USINOR SA
Original Assignee
Thyssen Stahl AG
USINOR SA
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 Thyssen Stahl AG, USINOR SA filed Critical Thyssen Stahl AG
Publication of EP0499562A1 publication Critical patent/EP0499562A1/fr
Application granted granted Critical
Publication of EP0499562B1 publication Critical patent/EP0499562B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
    • B22D11/0682—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the casting wheel

Definitions

  • the present invention is in the field of casting continuous metals on one or between two cylinders driven in rotation and whose wall is energetically cooled by internal circulation of a coolant. It concerns more particularly the ferrule of such a cylinder which constitutes said wall.
  • cylinders consisting of a core ensuring the mechanical resistance of the cylinder and its rotational drive, and a ferrule surrounding this core, made of a conductivity material high thermal, in contact with which the cast metal is caused to solidify during the operation of casting.
  • a coolant circulates under pressure in channels drilled in the thickness of this, parallel to the axis of the cylinder. These channels are connected at their ends to conduits supply and return for example in the heart of the cylinder.
  • the channel section of cooling and their distribution in the shell are determined so as to ensure sufficient flow for guarantee the desired heat extraction and a greatest possible homogeneity of cooling all around the cylinder.
  • These channels are therefore usually in large numbers and in diameter relatively small (eg 15 mm).
  • the object of the present invention is to resolve the previously cited problems, including allow easier realization of the cooling. It also aims to increase the overall cooling efficiency, improving heat exchange conditions between the shell and the coolant.
  • the invention has for object a cylindrical shell of a casting cylinder for a continuous casting installation on one or between two such cylinders, having bores forming drilled cooling channels parallel to the axis of said ferrule in the thickness of the latter, characterized in that that it includes inside said bores rods extending over substantially the entire length of said bores, of section smaller than that of said bores, in that for each channel of cooling it comprises between the surface of the bore and said rod of the holding means said rod in a position remote from the surface of the bore which is closest to the external surface of the ferrule, and in that said rods are off-center with respect to said bores towards the axis of the ferrule and immobilized in rotation, so as to provide, between rod and bore, a channel located towards the outer surface of the shell.
  • said means for holding the rod consist of spacers.
  • the ends of the bores are closed by plugs linked to the ends of the rods and comprising means elastic seals to seal the ends of the bores.
  • plugs linked to the ends of the rods comprising means elastic seals to seal the ends of the bores.
  • Such known means consist for example to weld or screw metal plugs to ends of the bores.
  • stresses due to welding appear in the shell and risk causing cracks.
  • subsequent repairs require, to access to the cooling channels, the machining of the zones welded.
  • screw caps tap the ends of the bores, and more cracks can also appear at the bottom of the net in the ferrule.
  • the sealing means according to the latter layout of the invention eliminate these problems and disadvantages by reducing machining to the sole boring, and removing any crack initiation.
  • the casting cylinder according to the prior art shown in Figure 1 has a ferrule 1 in high thermal conductivity material surrounding a core 2 composed of a support piece 3 and two flanges 4 which rigidly hold the ferrule by tightening by means of tie rods 5.
  • Channels cooling 6 are drilled in the shell parallel to the cylinder axis and closed at each end by plugs 7. These channels 6 are connected to supply 8 and return 9 conduits for the coolant.
  • the cooling channels for example have a 15 mm diameter, and the plugs 7 are welded to the ferrule.
  • the drawing of Figure 2 shows, to scale enlarged, the detail, corresponding to zone A of the Figure 1, of the shell in accordance with this invention.
  • the cooling channel 6 is formed by a bore 11 made in the shell, for example of 20 mm in diameter, in which is placed a rod 12 of smaller diameter, for example 13 mm, spanning the entire length of the bore.
  • the rod 12 is offset relative to the bore towards the cylinder axis and maintained in contact with the wall zone 13 of the bore located towards said axis by means of spacers 14 inserted between the rod and the bore on the side diametrically opposite to the contact area 13.
  • the space thus formed between the wall of the bore and the rod constitutes the channel in which the fluid of cooling.
  • spacers 14 are thus distributed over the length of the bore to guarantee constant positioning of the rod therein.
  • the spacers are thin, and have an elongated cross section in the direction from the flow and thinned towards the ends 14 ′, as shown in Figure 4.
  • spacers 14 may be different.
  • the spacer 14 located in a radial plane of the cylinder can be replaced for example by two spacers of similar shape, located symmetrically on both sides and else of this plan.
  • the section of the rod 12 can also be modified.
  • this rod 12a can be cylindrical in diameter substantially equal to that of bore 11, and include a flat 12b, or any other machining carried out so that when this rod is placed in the bore, a channel 6a remains between the rod and the bore, delimited by this flat or machining and the surface of the bore.
  • the rod is then preferably positioned angularly in the bore so that this flat or machining is directed towards the outer surface of the ferrule.
  • the rod 12 Towards its end, and at the outlet in the bore 11 of the supply conduits 8, 9 or return of the coolant, the rod 12 has a part 15 offset from its part median but centered with respect to the bore, so as not to disturb the flow of the fluid.
  • a plug 16 is inserted into the bore and bound only at the end 18 of the rod 12.
  • the plug 16 has an annular seal 17 made of elastic material inserted between the end 18 of the rod 12 and the bore 11.
  • the seal 17 is in axial abutment against a flange 19 of the rod.
  • the cap comprises axial retaining means comprising a cap 21, provided with anchoring elements constituted by deformable tabs 22 notched including the notches 23 are anchored on frustoconical shoulders 24 provided for this purpose on the end 18 of the rod.
  • All tabs 22 has a frustoconical external shape and fits between the end 18 of the rod and the seal 17 which, due to its elasticity, exerts pressure radial on the tabs 22, thus ensuring anchoring notches 23 of the hat on the shoulders frustoconical 24.
  • the seal being thus compressed between the abutment collar 19, cap 21 and its tongues 22, and the wall of the bore 11, provides sealing of the ends of the cooling channels.
  • the seal has at its periphery a groove annular 20 which constitutes a free volume which can absorb any variations in volume or deformation of the seal, and thus preventing the creep of this last between the bore and the cap 21.
  • the hat also has two ears 25 diametrically opposed which engage in clearances 26 of corresponding shapes made in the ferrule, and immobilizing the cap in rotation by compared to the ferrule. Due to the assembly of the cap, tightened on the end 18 of the rod by the joint 17, the rod 12 is itself immobilized in rotation.
  • the ears 25 constitute a stop opposing any significant axial displacement of the rod and plug compared to the ferrule, a slight play, in the axial direction, being however provided between those ears and the 26 clearances to account possible differences in expansion between the upper and the ferrule.
  • the implementation of the plug according to the invention requires no machining of the ferrule other than drilling the bore, which has thus a wall of constant diameter over its entire length, thus providing a smooth surface little likely to constitute crack initiators.
  • the plugs have no connection rigid mechanical direct with the ferrule, and are maintained, in the axial direction, by the mere fact of their anchoring on the ends of the rods. It is therefore only the rod which maintains the plugs. Furthermore, conversely, maintaining axial position of the rod is ensured only by plugs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Continuous Casting (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Moulding By Coating Moulds (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Paper (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
EP92470004A 1991-02-13 1992-02-04 Virole de cylindre de coulée continue Expired - Lifetime EP0499562B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9101865 1991-02-13
FR9101865A FR2672523B1 (fr) 1991-02-13 1991-02-13 Virole de cylindre de coulee continue.

Publications (2)

Publication Number Publication Date
EP0499562A1 EP0499562A1 (fr) 1992-08-19
EP0499562B1 true EP0499562B1 (fr) 1998-05-27

Family

ID=9409791

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92470004A Expired - Lifetime EP0499562B1 (fr) 1991-02-13 1992-02-04 Virole de cylindre de coulée continue

Country Status (7)

Country Link
EP (1) EP0499562B1 (fi)
AT (1) ATE166603T1 (fi)
DE (2) DE69225626T2 (fi)
DK (1) DK0499562T3 (fi)
ES (1) ES2118122T3 (fi)
FI (1) FI97607C (fi)
FR (1) FR2672523B1 (fi)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007012113A1 (en) * 2005-07-25 2007-02-01 Castrip, Llc Twin roll caster, and equipment and method for operating the same

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0680795A1 (de) * 1994-05-02 1995-11-08 Siemens Aktiengesellschaft In Walzenzapfen gelagerte Walze für eine Einrichtung zum kontinuierlichen Giessen von metallischen Bändern
FR2745510B1 (fr) * 1996-02-29 1998-05-22 Usinor Sacilor Cylindre de coulee d'une installation de coulee continue sur un ou entre deux cylindres
FR2770427B1 (fr) * 1997-10-31 1999-12-10 Usinor Procede et installation de coulee de bandes minces metalliques sur un ou entre deux cylindres
AT408199B (de) 1999-09-06 2001-09-25 Voest Alpine Ind Anlagen Giesswalze
AU2002212158A1 (en) * 2000-09-27 2002-04-08 Sms Demag Aktiengesellschaft Casting roll for creating cast bars, especially for a twin-roll casting machine
JP2007136485A (ja) 2005-11-16 2007-06-07 Ishikawajima Harima Heavy Ind Co Ltd 鋳造用ロール
JP5103939B2 (ja) * 2007-02-26 2012-12-19 株式会社Ｉｈｉ 鋳造用ロール

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1382608A (en) * 1920-02-18 1921-06-21 Pennsylvania Wire Glass Compan Machinery for rolling glass
US1813142A (en) * 1927-06-30 1931-07-07 Saint Gobain Glass forming roll
US2015747A (en) * 1932-07-11 1935-10-01 Libbey Owens Ford Glass Co Roll construction
FR1468066A (fr) * 1965-05-13 1967-02-03 Rouleau pour machines à fabriquer le verre en feuilles
US3834205A (en) * 1972-12-20 1974-09-10 Procter & Gamble Selectively insulated mill roll
DE3012736C2 (de) * 1980-03-28 1982-02-18 Mannesmann AG, 4000 Düsseldorf Stranggießrolle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007012113A1 (en) * 2005-07-25 2007-02-01 Castrip, Llc Twin roll caster, and equipment and method for operating the same
CN101227991B (zh) * 2005-07-25 2011-08-10 卡斯特里普公司 双辊铸机及执行该铸机的装置和方法

Also Published As

Publication number Publication date
FR2672523A1 (fr) 1992-08-14
ES2118122T3 (es) 1998-09-16
DK0499562T3 (da) 1999-03-22
DE69225626T2 (de) 1999-01-28
EP0499562A1 (fr) 1992-08-19
ATE166603T1 (de) 1998-06-15
FI920607A (fi) 1992-08-14
DE4203964A1 (de) 1992-08-20
FI97607C (fi) 1997-01-27
FR2672523B1 (fr) 1995-04-21
FI920607A0 (fi) 1992-02-13
FI97607B (fi) 1996-10-15
DE69225626D1 (de) 1998-07-02

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