EP1328362A1 - Rouleau de coulee destine a la formation d'une barre de coulee, en particulier pour une machine de coulee a deux rouleaux - Google Patents

Rouleau de coulee destine a la formation d'une barre de coulee, en particulier pour une machine de coulee a deux rouleaux

Info

Publication number
EP1328362A1
EP1328362A1 EP01980272A EP01980272A EP1328362A1 EP 1328362 A1 EP1328362 A1 EP 1328362A1 EP 01980272 A EP01980272 A EP 01980272A EP 01980272 A EP01980272 A EP 01980272A EP 1328362 A1 EP1328362 A1 EP 1328362A1
Authority
EP
European Patent Office
Prior art keywords
casting
ring housing
cooling
roll
face
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.)
Withdrawn
Application number
EP01980272A
Other languages
German (de)
English (en)
Inventor
Hans Streubel
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
Priority claimed from DE10057028A external-priority patent/DE10057028A1/de
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1328362A1 publication Critical patent/EP1328362A1/fr
Withdrawn legal-status Critical Current

Links

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

  • Casting roll for forming a casting strand in particular for a two-roll casting machine
  • the invention relates to a casting roller for forming a casting strand, in particular for a two-roller casting machine, with internal roller cooling, the cooling being carried out by means of cooling channels distributed over the circumference in the form of cooling bores or cooling grooves.
  • Casting rolls are known in which the cooling water is supplied through the roll pin and from there is distributed to the cooling channels from the inside to the outside of the roll circumference.
  • the water flow in the roll is very production-intensive and, depending on the roll construction, requires additional seals. Due to the even water distribution, there is a uniform cooling intensity over the circumference of the roll, without taking into account the temperature distribution on the roll surface. Such cooling leads to an asymmetrical thermal deformation of the casting roll with an adverse effect on the casting profile and a large fluctuation range in the surface temperature, which has a negative effect on the roll service life.
  • the even flow distribution also requires unnecessarily high amounts of cooling water.
  • Such water cooling is e.g. known from EP 0 687 515 A1.
  • the invention has for its object to provide a simple and flexible water flow in the roll shell in order to avoid the disadvantages described.
  • the object is achieved according to the invention in that at least one feed ring housing and one discharge ring housing are provided, each of which is arranged either on a first end face and on a second end face or both on at least one end face and each with a coolant supply line and one Coolant discharge are provided.
  • This enables a simple and flexible supply and removal of cooling medium into the roll shell, which can be easily manufactured in terms of production technology.
  • Another advantage is that in the event of leaks, the sealing elements can be replaced easily and without dismantling the entire rollers. Due to the cooling medium supply and discharge ring housing, the distribution of the cooling water over the roller circumference can be divided differently with a reduced amount of cooling medium.
  • a higher amount of water can advantageously be passed through at high water speeds and in areas with lower temperature loads the water amounts and water speeds can be adjusted accordingly.
  • both the thermal deformation and the fluctuation range of the roll surface temperature can be reduced, and thus the roll service life can be improved.
  • roller shell is rotatably mounted on a standing axis. This results in design alternatives for the arrangement, storage and housing of the feed ring housing and the discharge ring housing.
  • One embodiment provides that the cooling medium is guided in adjacent cooling channels in opposite directions. As a result, the cooling effect is evened out over the roll circumference and roll width.
  • the simplified cooling medium supply can be improved in that the supply ring housing and the discharge ring housing can be axially adjusted and / or adjusted against the respective end face.
  • Such an axial displacement of the coolant supply ring housing and the coolant discharge ring housing provides an additional manipulated variable for the water quantities and water velocities.
  • Further refinements consist in that the feed ring housing and / or the discharge ring housing can be adjusted and / or adjusted to the respective end face by means of spring force, hydraulically or pneumatically actuated piston-cylinder unit or by means of spindle lifting elements.
  • a further improvement provides that the feed ring housing and / or the discharge ring housing are supported on the standing axis. This results in simple storage for the respective ring housing.
  • the feed ring housing and the discharge ring housing are each provided with at least one coolant feed line or one coolant discharge line.
  • the amount of cooling medium can be distributed through the ring shape on the ring housing and can be supplied or discharged at several points.
  • the intensity of the cooling medium can be influenced in such a way that the quantity of cooling medium and the cooling medium speed supplied to the cooling channels can be adjusted over the circumference to the temperature stress of the casting roll.
  • a maximum amount of the cooling medium passed through at maximum speed is set at least on the contact surface of the casting roll with the casting metal.
  • These flow cross sections can be formed by reducing the flow cross section over a part of the circumference in the feed ring housing and in the discharge ring housing by means of sheet metal segments. ment has different distances from the end face and channels with different distances are available in the partial circumference.
  • FIG. 1A is an enlarged section "X" according to FIG. 1,
  • Fig. 2B shows an enlarged section "X" through the end of the casting roll for a second embodiment
  • Fig. 3 is an end view of the casting roll.
  • the casting roll (Fig. 1) is used to form (and / or support) a casting strand, e.g. of a casting strand with a flat cross section for the production of hot strip and is mainly used in a two-roll casting machine in a parallel spaced arrangement.
  • the casting roller has an internal roller cooling in the roller jacket 1, the supplied cooling medium (cooling water) under the roller jacket surface 1a being distributed over cooling channels 2, which are designed as cooling bores or cooling grooves, over the roller circumference 3 and removed again after heat absorption.
  • the cooling medium is fed into the roller jacket 1 via a feed ring housing 5 arranged on a first end face 4 of the casting roller and is fed back to a cooling system on a second, opposite end face 6 by means of a largely identical, discharge tube housing 7 arranged in mirror image.
  • the roller jacket 1 is rotatably mounted on a standing axis 8.
  • the roller jacket 1 is cooled particularly evenly when the cooling medium is guided in adjacent cooling channels 2 in alternating opposite directions.
  • the cooling dium supplied via a cooling medium supply line 18 in annular chambers 16 of the supply ring housing 5 with a connecting channel 12 and a channel connection 15 in the flow of a first cooling channel 2.
  • a return line 20 is formed via such a connecting channel 12a and a connection 15a, via which the cooling medium flows into the annular chamber 17 in the opposite direction and is discharged via a coolant discharge line 19.
  • the feed ring housing 5 and the discharge ring housing 7 can be adjusted and / or adjusted against the respective end face 4 and 6 of the casting roller and engage in the groove 11 of the roller shell 1 in the exemplary embodiment.
  • the feed ring housing 5 and the discharge ring housing 7 are either by spring force, by hydraulically or pneumatically actuable piston-cylinder units or by means of screw jack elements on the respective end faces 4, 6 pressed tightly.
  • the feed ring housing 5 and / or the discharge ring housing 7 can advantageously be supported on the standing axis 8.
  • the roller jacket 1 is rotatably supported on the axle 8 via hubs 14.
  • the two hubs 14 are designed as a one-piece sleeve, the length of which corresponds approximately to the roller jacket 1.
  • An electromagnetic brake 24 can be arranged in the casting rolls of a two-roll casting machine between the roll casing 1 and the axis 8.
  • the feed ring housing 5 is at least provided with a water connection (not shown). 2A, the cooling channels 2 run parallel to the (horizontal) central roller longitudinal axis. The feed ring housing 5 feeds the cooling medium through the connecting channel 12, from which the inclined duct connection 15 (15a) leads to the first sealed cooling duct 2.
  • the amount of cooling water passed through can be adjusted depending on the roll surface temperature.
  • the flow cross section of the ring housings 5, 7 over a partial circumference 23 through introduced sheet metal segments with an adapted distance 22 to the end face 4 or 6 of the roller casing 1 and bores with different distances 9 for setting the different cooling medium quantities and cooling medium speeds adjusted the temperature distribution of the casting rolls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

L'invention concerne un rouleau de coulée destiné à la formation d'une barre de coulée, en particulier pour une machine de coulée à deux rouleaux, ledit rouleau comportant un système de refroidissement intérieur de rouleau. Le refroidissement est effectué au moyen de canaux de refroidissement (2) répartis sur la périphérie du rouleau, se présentant sous la forme de perçages ou de rainures de refroidissement. L'invention vise à simplifier la distribution des flux d'eau de refroidissement avec une quantité d'eau de refroidissement réduite. A cet effet, on fait intervenir au moins un boîtier annulaire d'amenée (5) et un boîtier annulaire d'évacuation (7) logés respectivement sur un premier côté frontal (4) et sur un deuxième côté frontal (6), ou ensemble sur au moins un côté frontal (4, 6), lesdits boîtiers étant respectivement pourvus d'une amenée d'agent réfrigérant (18) et d'une évacuation d'agent réfrigérant (19).
EP01980272A 2000-09-27 2001-08-25 Rouleau de coulee destine a la formation d'une barre de coulee, en particulier pour une machine de coulee a deux rouleaux Withdrawn EP1328362A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10048985 2000-09-27
DE10048985 2000-09-27
DE10057028A DE10057028A1 (de) 2000-09-27 2000-11-17 Gießrolle zum Bilden eines Gießstranges, insbesondere für eine Zwei-Rollen-Gießmaschine
DE10057028 2000-11-17
PCT/EP2001/009818 WO2002026425A1 (fr) 2000-09-27 2001-08-25 Rouleau de coulee destine a la formation d'une barre de coulee, en particulier pour une machine de coulee a deux rouleaux

Publications (1)

Publication Number Publication Date
EP1328362A1 true EP1328362A1 (fr) 2003-07-23

Family

ID=26007250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01980272A Withdrawn EP1328362A1 (fr) 2000-09-27 2001-08-25 Rouleau de coulee destine a la formation d'une barre de coulee, en particulier pour une machine de coulee a deux rouleaux

Country Status (3)

Country Link
EP (1) EP1328362A1 (fr)
AU (1) AU2002212158A1 (fr)
WO (1) WO2002026425A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6892793B2 (en) 2003-01-08 2005-05-17 Alcoa Inc. Caster roll

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672523B1 (fr) * 1991-02-13 1995-04-21 Usinor Sacilor Virole de cylindre de coulee continue.
SE501633C2 (sv) * 1992-03-30 1995-04-03 Dalforsaan Ab Kyld stödrulle
EP0687515B1 (fr) * 1994-06-13 2000-09-20 Mitsubishi Jukogyo Kabushiki Kaisha Rouleau de refroidissement pour la coulée continue et procédé pour produire ce rouleau
GB9710663D0 (en) * 1997-04-24 1997-07-16 Kvaerner Clecim Cont Casting A casting roll and roll stand
AUPP331698A0 (en) * 1998-05-04 1998-05-28 Bhp Steel (Jla) Pty Limited Casting steel strip

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0226425A1 *

Also Published As

Publication number Publication date
WO2002026425A1 (fr) 2002-04-04
AU2002212158A1 (en) 2002-04-08

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