US3370642A - Strand guide for a continuous casting plant - Google Patents

Strand guide for a continuous casting plant Download PDF

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Publication number
US3370642A
US3370642A US476865A US47686565A US3370642A US 3370642 A US3370642 A US 3370642A US 476865 A US476865 A US 476865A US 47686565 A US47686565 A US 47686565A US 3370642 A US3370642 A US 3370642A
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Prior art keywords
strand
rollers
pairs
roller
guide
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Expired - Lifetime
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US476865A
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English (en)
Inventor
Meier Walter
Thalmann Armin
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SMS Concast AG
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Concast AG
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Publication date
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    • 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1282—Vertical casting and curving the cast stock to the horizontal

Definitions

  • the strand guide system comprises a roller guide positioned below a continuous casting mold.
  • the roller guide consists of a roller guide mounting means positioned adjacent the desired course of the strand and includes a plurality of guide roll pairs.
  • Each of the roll pairs consists of a first and second roller spaced apart by a predetermined fixed distance and so mounted as to permit a limited deflection of each of the roller pairs in a direction transverse to the longitudinal axis of the strand.
  • the present invention relates to an apparatus for continuous casting of metal and particularly refers to an apparatus for guiding the cast strand immediately below the mold.
  • a strand guide system of this kind comprises guiding elements in the form of rollers.
  • These strand guide systems are known as roller guide systems and consist of a number of successive pairs of rollers, the rollers of each individual pair being disposed one opposite the other with fixed spacing between them. The sum of the distances between the individual pairs of rollers gives the guide path for the strand withdrawn from the mold, such strand being preceded by a dummy bar.
  • this dummy bar and the following cast strand can be satisfactorily introduced, guided and delivered only if casting is preceded by accurate setting up of the various pairs of rolls in relation to one another allowed by setting up of the entire roller guide system with respect to the mold aperture and the rolls situated downstream thereof (for example the withdrawing rolls, bending or straightening rolls).
  • the strand guide system according to the invention obviates these disadvantages, to which end it comprises curved strand guiding means consisting of pairs of rollers where each pair is movable to a limited degree perpendicular to the surface of the strand S and centers of rollers are firmly interconnected by maintaining a fixed distance between each other.
  • FIG. 1 is an elevation view of a continuous casting plant using the strand guide in accordance with the present invention.
  • FIG. 2 is an elevation view of a portion of the strand guide of FIG. 1 to enlarged scale.
  • FIG. 3 is a section on the line IIIIII in FIG. 1.
  • FIG. 4 is a section on the line IV-IV in FIG. 1.
  • FIG. 5 is a section of the movable pair of rollers on the line V-V in FIG. 6, as a detail of a roller guide according to a second embodiment
  • FIG. 6 is an axial section on the line VIVI through the movable pair of rollers of the second embodiment shown in FIG. 5.
  • liquid metal is poured from a container not shown in accompanying drawings, into a cooled mold K.
  • This mold K is closed by a dummy bar at its withdrawal end, reaching down to a withdrawing and straightening aggregate A.
  • the resulting strand S is drawn from the mold K, when the solidified skin is of sufficient strength, guided by curved strand guiding means positioned between mold K and aggregate A and cooled fur ther as already known.
  • the roller gmide system illustrated consists of three parts 2, 3, 4 (alternatively they could be just two or more than three), each consisting of interconnected top and bottom angle-section pairs 5 and 6 respectively.
  • the detachable connection between the adjacent roller guide system elements is by way of stays 7 and 8 which are affixed to the top and to the bottom angle sections 5 and 6 of two adjacent parts.
  • Another two such stays 9 and 10 are also provided at the free ends of the roller guide system parts 2 and 4.
  • the same arrangement is provided on the other side of the rollers (see FIG. 4) at a distance corresponding to the width of the roller guide system.
  • Bearings to receive the journals of rotatably mounted rollers 11, 12 are provided in the stay 9; for rollers 13, 14 in stay 8; for rollers 15, 16 in stay 7; and for rollers 17, 18 in stay 10.
  • the stay mounted rollers are fixedly positioned in a predetermined distance apart.
  • rollers 19 and 20 are provided between these fixed pairs of rollers, but are movable to a limited extent in a direction at rightangles to the strand axis while firm interconnection is maintained between them.
  • this is achieved by the fact that the journals of the rollers 1? on the surface forming the inner radius of the strand, and of the rollers 20 on the surface forming the outer radius of the strand are the pivot axes of link chains 21 and 22, the rollers 11, 13, 15, 17, 19 of the pairs all being situated between the inner two chains 21 and the rollers 12, 14, 16, 18, 2%) all being situated between the two outer chains 22.
  • the chains 21, 22 respectively hang freely between the fixed rollers 11, 13, 15, 17; 12, 14, 16, 18 respectively, the outer chain 22 in each case extending in parallel relationship to the inner chain 21 on the same side of the strand S.
  • the firm distance between the two link chains 21, 22 at each end of the rollers and hence the firm distance between the rollers 19, 20 of each movable pair is achieved by shackles 23 connecting the pivots of the rollers -19, 20 forming a pair.
  • this distance is equal to the distance between the rollers of the fixed, i.e. non-slidable, pairs of rollers.
  • the pairs of rollers are movable independently to a limited extent in a direction at right-angles to the strand axis between the immovable pairs of rollers mounted on the stays 7 to 10.
  • the roller guide system in this embodiment comprises rails 32 to support the consecutive pairs of rollers 30, 31, such rails being disposed on each side of the rollers and the longitudinal axis of the rails corresponding to the imaginary strand axis.
  • the two rollers 30, 31 of each movable pair are kept at a fixed distance according to the strand size by means of shackles 33 at the ends.
  • each of these two-part shackles 33 extends through a boss 34 secured to the rail 32, so that they and the associated rollers 30, 31 are slidable at right-angles to the axis of the strand S at this place between a top and bottom end position.
  • Springs 35, 36 disposed on each side of the boss 34 in the direction of displacement between the latterand a shoulder of the shackle 33 ensure that the rollers 30, 31 are always kept in a middle position between the two end positions, but being displaceable independent of neighbouring pairs of rollers vertical to the strand surface between two end positions against springs with respect to a fixed rail.
  • the slidability of the movable pairs of rollers from the middleposition in each direction is about 1 to 2".
  • the guide elements used may be in the form of sliding elements movable vertically in relation to the strand surface.
  • the continuous casting machine in FIG. 1 shows a curved mold to be used to a cast curved strand.
  • a mold which is straight relative to the axis of the strand casting a straight strand, several consecutively and firmly mounted pairs of rollers 11, 12 have to be disposed to take up the forces arising from bending of the strand at the beginning of the curved strand guiding means -1.
  • the guiding means were confined to two faces (the upper and lower in FIG. 1) of the strand, whereas in certain cases it would be essential to have several consecutively mounted guiding rollers arranged on the other faces as well.
  • An improved strand guide for a continuous casting plant in which liquid metal is poured into a cooled mold to solidify the periphery of said metal into a skin enclosing a molten core and defining a strand which is withdrawn continuously from said mold and is further cooled after it is withdrawn from the mold, which comprises roller guide mounting means positioned below the mold to receive the strand as it is withdrawn from the mold, at least three roller pairs fixedly mounted on said roller guide mounting means, the first of said fixedly mounte roller pairs being positioned at the entrance to said mounting means, the second being positioned at the exit end of said mounting means, and the third being positioned intermediate the entrance and exit of said mounting means, a plurality of deflectable guide roller pairs, each of said roller pairs comprising a first and second roller spaced apart by a predetermined fixed distance, a link coupling together said first and second spaced apart roller of each pair, a plurality of links coupling together a roller in each of said roller pairs with the corresponding roller of each adjacent roller pair, said

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
US476865A 1964-08-04 1965-08-03 Strand guide for a continuous casting plant Expired - Lifetime US3370642A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1017364A CH414957A (de) 1964-08-04 1964-08-04 Strangführung für Stranggussanlage

Publications (1)

Publication Number Publication Date
US3370642A true US3370642A (en) 1968-02-27

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US476865A Expired - Lifetime US3370642A (en) 1964-08-04 1965-08-03 Strand guide for a continuous casting plant
US683677A Expired - Lifetime US3496990A (en) 1964-08-04 1967-11-16 Apparatus for continuous casting of metal

Family Applications After (1)

Application Number Title Priority Date Filing Date
US683677A Expired - Lifetime US3496990A (en) 1964-08-04 1967-11-16 Apparatus for continuous casting of metal

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US (2) US3370642A (de)
CH (1) CH414957A (de)
FR (1) FR1443678A (de)
GB (1) GB1112832A (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441189A (en) * 1967-07-17 1969-04-29 Gen Bearing Co Inc Conduit roller bearing
US3596706A (en) * 1967-12-27 1971-08-03 Boehler & Co Ag Geb Track supporting roller guide means for casting tracks in casting installations and more particularly in curved casting installations
US3730256A (en) * 1969-06-30 1973-05-01 Koppers Co Inc Apparatus for bending continuous cast slabs
US3891026A (en) * 1971-01-07 1975-06-24 Koppers Co Inc Apparatus for bending continuous cast slabs
US3924673A (en) * 1968-03-18 1975-12-09 Gamma Engineering Ltd Apparatus for producing continuous metal castings
JPS5257027A (en) * 1975-11-06 1977-05-11 Ishikawajima Harima Heavy Ind Method of continuous casting
US4120139A (en) * 1976-07-29 1978-10-17 Tatsuta Densen Kabushiki Kaisha Cable making apparatus
US4260119A (en) * 1979-03-28 1981-04-07 Midland Metalcraft Company Apparatus for supporting and guiding a flexible line
EP0064238A1 (de) * 1981-04-30 1982-11-10 Concast Service Union Ag Verfahren und Vorrichtung zum Biegen eines Stranges in einer Stahlstranggiessanlage
US4905754A (en) * 1989-02-28 1990-03-06 Sumitec, Inc. Footroll assembly for a continuous casting apparatus
US5850871A (en) * 1996-04-04 1998-12-22 Ag Industries, Inc. Foot guide and control system for continuous casting machine
US6662927B2 (en) * 2001-09-05 2003-12-16 The Goodyear Tire & Rubber Company Strip inverter

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6918409A (de) * 1968-12-13 1970-06-16
CH515760A (de) * 1969-05-13 1971-11-30 Concast Ag Vorrichtung zum Führen eines Stranges in der Sekundärkühlzone beim Stranggiessen in Bogenanlagen
FR2168134A2 (en) * 1972-01-17 1973-08-31 Fives Lille Cail Continuous casting installation - with ingot guide appts constituted by two roll assemblies
US3920065A (en) * 1973-08-27 1975-11-18 United States Steel Corp Curved roll rack
AT368419B (de) * 1978-09-19 1982-10-11 Voest Alpine Ag Strangfuehrung fuer stranggiessanlagen
RU2136438C1 (ru) * 1998-01-20 1999-09-10 ОАО Оскольский электрометаллургический комбинат Машина непрерывного литья заготовок
CN108080770B (zh) * 2018-02-05 2023-10-31 陈奕蒙 一种板坯连铸机火切机切下辊避让火切枪系统及方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2284503A (en) * 1939-09-14 1942-05-26 Himself And Julia Lce Cox Will Apparatus for continuous casting
US2895190A (en) * 1955-09-12 1959-07-21 Mannesmann Ag Continuous casting plants
GB830852A (en) * 1957-01-11 1960-03-23 Boehler & Co Ag Geb Improvements in or relating to continuous casting plant
US3015862A (en) * 1958-02-26 1962-01-09 Rustemeyer Hans Composite mold
AT234933B (de) * 1962-06-27 1964-07-27 Demag Ag Stützwalzengerüst für eine Stahl- oder Metallstranggießanlage
US3283368A (en) * 1964-03-26 1966-11-08 Koppers Co Inc Roller apron conveyor continuous casting machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1060910A (fr) * 1952-05-21 1954-04-07 Usinor Procédé et installation pour la coulée en continu de metaux et autres produits
US2770021A (en) * 1952-10-23 1956-11-13 Babcock & Wilcox Co Method of and apparatus for continuous casting
DE1111345B (de) * 1957-06-11 1961-07-20 Mannesmann Ag Transportrollenanstellvorrichtung fuer Stranggiessanlagen
US3263284A (en) * 1963-12-20 1966-08-02 United States Steel Corp Constant-pressure pinch rolls for continuous casting

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2284503A (en) * 1939-09-14 1942-05-26 Himself And Julia Lce Cox Will Apparatus for continuous casting
US2895190A (en) * 1955-09-12 1959-07-21 Mannesmann Ag Continuous casting plants
GB830852A (en) * 1957-01-11 1960-03-23 Boehler & Co Ag Geb Improvements in or relating to continuous casting plant
US3015862A (en) * 1958-02-26 1962-01-09 Rustemeyer Hans Composite mold
AT234933B (de) * 1962-06-27 1964-07-27 Demag Ag Stützwalzengerüst für eine Stahl- oder Metallstranggießanlage
US3283368A (en) * 1964-03-26 1966-11-08 Koppers Co Inc Roller apron conveyor continuous casting machine

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441189A (en) * 1967-07-17 1969-04-29 Gen Bearing Co Inc Conduit roller bearing
US3596706A (en) * 1967-12-27 1971-08-03 Boehler & Co Ag Geb Track supporting roller guide means for casting tracks in casting installations and more particularly in curved casting installations
US3924673A (en) * 1968-03-18 1975-12-09 Gamma Engineering Ltd Apparatus for producing continuous metal castings
US3730256A (en) * 1969-06-30 1973-05-01 Koppers Co Inc Apparatus for bending continuous cast slabs
US3891026A (en) * 1971-01-07 1975-06-24 Koppers Co Inc Apparatus for bending continuous cast slabs
JPS5257027A (en) * 1975-11-06 1977-05-11 Ishikawajima Harima Heavy Ind Method of continuous casting
US4120139A (en) * 1976-07-29 1978-10-17 Tatsuta Densen Kabushiki Kaisha Cable making apparatus
US4260119A (en) * 1979-03-28 1981-04-07 Midland Metalcraft Company Apparatus for supporting and guiding a flexible line
EP0064238A1 (de) * 1981-04-30 1982-11-10 Concast Service Union Ag Verfahren und Vorrichtung zum Biegen eines Stranges in einer Stahlstranggiessanlage
US4905754A (en) * 1989-02-28 1990-03-06 Sumitec, Inc. Footroll assembly for a continuous casting apparatus
US5850871A (en) * 1996-04-04 1998-12-22 Ag Industries, Inc. Foot guide and control system for continuous casting machine
US6662927B2 (en) * 2001-09-05 2003-12-16 The Goodyear Tire & Rubber Company Strip inverter

Also Published As

Publication number Publication date
FR1443678A (fr) 1966-06-24
CH414957A (de) 1966-06-15
GB1112832A (en) 1968-05-08
US3496990A (en) 1970-02-24

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