US3815664A - Expansible frame hot topping apparatus - Google Patents

Expansible frame hot topping apparatus Download PDF

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Publication number
US3815664A
US3815664A US00260439A US26043972A US3815664A US 3815664 A US3815664 A US 3815664A US 00260439 A US00260439 A US 00260439A US 26043972 A US26043972 A US 26043972A US 3815664 A US3815664 A US 3815664A
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US
United States
Prior art keywords
frame
mould
wedge
head box
holder
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
US00260439A
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English (en)
Inventor
K Eccleston
R Fieldhouse
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.)
Foseco International Ltd
Original Assignee
Foseco International Ltd
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 Foseco International Ltd filed Critical Foseco International Ltd
Priority to US453958A priority Critical patent/US3863308A/en
Application granted granted Critical
Publication of US3815664A publication Critical patent/US3815664A/en
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
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B22D7/06—Ingot moulds or their manufacture
    • B22D7/10—Hot tops therefor
    • B22D7/108—Devices for making or fixing hot tops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/26—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device
    • B05B7/28—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid
    • B05B7/30—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid the first liquid or other fluent material being fed by gravity, or sucked into the carrying fluid
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53678—Compressing parts together face to face

Definitions

  • ABSTRACT Hot topping apparatus comprises an expansible frame for applying lining slabs to the mould or head box walls, and a holder for refractory wedges, the holder being moveable to drive the wedges between the slabs to secure the lining in position.
  • a method of lining the head of an ingot mould or a head box therefor with a lining of refractory heat insulating material which comprises cating slabs of refractory heat insulating material on an expansible frame, and locating on a holder associated with the said frame one or more wedges of refractory heat-insulating material, the slabs and wedges together constituting a complete hot top, lowering the assembly of frame and holder so that the frame enters an ingot mould or head box, expanding the frame to urge the lining slabs into contact with the mould or head box wall, moving the holder downwardly to drive the wedges between the lining slabs and so form a complete hot-top, contracting the frame and removing the frame and holder from the ingot mould or head box.
  • the frame and holder are preferably mounted together on a common support which is held firm during driving in the wedges by the frame pressing out against the mould wall.
  • the present invention accordingly provides hot topping apparatus comprising an expansible frame adapted to be inserted into an ingot mould or head box, therein to define an annular space between itself and the mould or head box walls, and, associated with theframe, a wedge holder adapted to hold one or more wedges of refractory heat-insulating material, and means for moving the wedge-holder relative to the frame and in a direction perpendicular to the plane of expansion of the frame to insert wedges held therein into the annular space.
  • the apparatus also preferably includes tapered guide members which are located in use below the expansible frame and which serve, by their taper to guide the whole apparatus into the mould or head box to be lined.
  • the apparatus is itself mounted on a common member from which it is suspended via a plurality of tension springs.
  • the common member is itself preferably swivel mounted. All this serves to give the apparatus a degree of freedom of movement which allows of rapid response to impacts on the tapered guide members as the apparatus is moved into position.
  • the frame of the apparatus of this invention is preferably rectangular to match the shape of a rectangular section mould or head box, but other shapes, e.g., round, octagonal or hexagonal may be used with correspondingly shaped moulds or head boxes.
  • a rectangular frame preferably comprises at least one projecting lug on one side of the rectangle and a latch member on an adjacent side of the rectangle, thereby to hold an L- shaped slab. The slab may be fitted over the lug, bent round the corner and engaged by the latch member.
  • the lug is preferably retractable, for example by being fixed to a guide member as set forth above.
  • the guide members may be so dimensioned and controlled that they may project from under the expansible frame at some stage and thus form a ledge to protect the base of a slab of refractory heat insulating material on the frame. Any combination of clips, latches, lugs or the like may serve to secure the slab in place on the frame.
  • a preferred mode of suspending the whole apparatus according to the present invention is on a roller carriage which is adapted to move longitudinally along a beam which itself may be swung about a wide arc in a horizontal place.
  • an ingot mould hot-topping apparatus is illustrated diagrammatically in the accompanying drawings, taken together.
  • FIG. 1 is a diagrammatic perspective view of half whole apparatus, but with the internal detail of-the lower half of the apparatus omitted.
  • FIG. 2 is a plan view of the left hand lower half of the apparatus of FIG. 1, showing some of the internal detail.
  • FIG. 3 is a sectional view of the lower jalf of the apparatus taken partly along the lines 2-2 in FIG. 2.
  • FIG. 4 is a diagrammatic perspective view of the apparatus in use lining the top of an ingot mould with a layer of refractory heat-insulating material. In FIG. 4, most of the apparatus has been omitted for clarity, but the wedge insertion mechanism is partly shown.
  • the apparatus consists basically of two assemblies, each of which includes a ram and a holder for heat insulating material.
  • the first assembly consists of a ram 10 mounted between two subframes 11.
  • the subframes are made of welded angle iron, as shown, and have the cross-sectional shape of a truncated square.
  • the two subframes 11 may be moved together (until they abut) or further apart.
  • the subframes ll slide on a pair of rods 12 when ram 10 is operated (see FIG. 3).
  • Brackets 14 are used to attach members 13 to rod 12.
  • Members 13 are eachconnected to their respective subframe 11 by means of two tension springs 15.
  • the end of the piston rod of ram 10 bears an actuating plate 16 which runs on guide rods 12, and may abut sleeves 17 (which slide on rods 12) to push subframes 11 outwardly or it may abut brackets 14 to draw the two guide members 13 together.
  • the two guide members 13 are biased apart by means of a compression spring 18 mounted on lower rod 12.
  • two holding members are provided.
  • the first is a pair of cylindrical lugs 21 mounted on a bracket 22 on guide member 13, and the second is a one or more spring or gravity operated latches 23 mounted on the top bar of subframe 11.
  • a slab 25 of lining material is engaged over lugs 21 (preferably these lugs engage pre-formed depressions in the slab) and then bent round the corner to an L-shape and engaged under latch 23.
  • the projecting guide members 13 serve to protect the lower edge of the slab 25 when it is later lowered into the ingot mould.
  • each support rod 31 is connected via a tension spring 32 and a wire link 33 to a crosspiece 34, which is rotatably mounted on the piston of a ram 36 (FIG. 1).
  • Ram 36 is carried by a roller carriage 37 which may traverse tracks 38 under power operation.
  • the tracks 38 are mounted on a swivel post 39 which permits free swinging of the tracks in a horizontal plane.
  • the combination of the swivel post 39, the tracks 38 and the free suspension of the apparatus through the springs 32 provides considerable latitude of movement to the apparatus to assist in aligning it in an ingot mould or head box.
  • a frame 30 carrying an assembly of a ram 40, the piston rod 41 of which bears a crosspiece 42, at each end of which are mounted a pair of arms 43 adapted to grip the upper end of a wedge of refractory heat-insulating material 45.
  • Each pair of arms 43 are biased together to grip a wedge 45 by means of a spring 46. Operation of the ram 40 may drive crosspiece 42 downwards or upwards, to insert wedges and to withdraw the crosspiece respectively.
  • ram 10 is operated to force subframes l1 and guide members 13 apart.
  • Guide members 13 first contact the mould walls and then subframes 11 move out further, with extension of springs 15, to press slabs 25 firmly against the walls of the ingot mould. This has the effect of holding subframes 11 firmly in the mould.
  • ram 40 is operated to drive (by means of crosspiece 42) the two corner wedges 45 into the spaces between the two L-shaped slabs 25 and thus secure the hot top in the mould.
  • Ram 40 is then operated to withdraw crosspiece 42, and the wedges 45 are left in position.
  • Ram 10 is now operated to draw subframes 11 together. These move together (pulled by springs 15) until they abut, and further movement of ram 10 now moves guide members 13 together until they are wholly underneath subframes 11. Movement of guide members 13 also withdraws lugs 21 from slab 25, so that the whole apparatus cannow be lifted clear of the ingot mould without disturbing the hot top. Once clear of the mould, ram 10 is operated to mid-stroke to bring guide members out from under subframes 11, and the whole procedure may then be begun again for the next ingot mould.
  • Alternative but similar forms of apparatus to that described above may be constructed to apply a single long slab about four walls with one fixing wedge, or to apply two, three or four slabs with one, two, three or four corner wedges.
  • hot topping apparatus comprising a laterally expansible frame adapted to be inserted into a vertical ingot mould or head box, therein to provide an annular space between itself and the mould or head box walls and means for expanding the frame to urge hot top [in ing slabs located on the outside of the frame against the mould or head box walls, the improvement which comprises, a wedge holder mounted on said frame and adapted to hold at least one wedge of refractory heat insulating material, and ram means for moving the wedge holder vertically from a position in which at least one wedge in the holder is suspended above the annular space to a position in which the wedge is inserted into the annular space between said slabs.
  • Apparatus according to claim 2 and comprising a common mounting member bearing a plurality of tension springs by which the remainder of the apparatus is suspended.
  • Apparatus according to claim 2 wherein the frame is rectangular, and comprises at least one projecting lug on one side of the rectangle and a latch member on an adjacent side of the rectangle, thereby to hold an L- shaped slab.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Casting Devices For Molds (AREA)
US00260439A 1971-06-16 1972-06-07 Expansible frame hot topping apparatus Expired - Lifetime US3815664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US453958A US3863308A (en) 1971-06-16 1974-03-22 Hot top inserting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2824471A GB1359731A (en) 1971-06-16 1971-06-16 Method and apparatus for hot topping ingot moulds or headboxes

Publications (1)

Publication Number Publication Date
US3815664A true US3815664A (en) 1974-06-11

Family

ID=10272619

Family Applications (1)

Application Number Title Priority Date Filing Date
US00260439A Expired - Lifetime US3815664A (en) 1971-06-16 1972-06-07 Expansible frame hot topping apparatus

Country Status (5)

Country Link
US (1) US3815664A (enrdf_load_stackoverflow)
JP (1) JPS5037140B1 (enrdf_load_stackoverflow)
DE (1) DE2229189C3 (enrdf_load_stackoverflow)
FR (1) FR2141996B1 (enrdf_load_stackoverflow)
GB (1) GB1359731A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960199A (en) * 1973-12-21 1976-06-01 Foseco Trading A.G. Expansible frame hot topping apparatus with wedge insertion means

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10118891B2 (en) 2011-12-05 2018-11-06 Allium Vitalis, Inc. Organosulfur compounds for the prevention and treatment of neurodegenerative diseases

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952886A (en) * 1958-06-26 1960-09-20 United States Steel Corp Apparatus for setting hot tops in ingot molds
US3022551A (en) * 1960-03-01 1962-02-27 United States Steel Corp Apparatus for handling sectional hot tops
DE1195919B (de) * 1962-10-17 1965-07-01 Miag Muehlenbau & Ind Gmbh Lastgreifvorrichtung
US3727676A (en) * 1970-04-01 1973-04-17 Foseco Int Apparatus for use in lining cavities

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952886A (en) * 1958-06-26 1960-09-20 United States Steel Corp Apparatus for setting hot tops in ingot molds
US3022551A (en) * 1960-03-01 1962-02-27 United States Steel Corp Apparatus for handling sectional hot tops
DE1195919B (de) * 1962-10-17 1965-07-01 Miag Muehlenbau & Ind Gmbh Lastgreifvorrichtung
US3727676A (en) * 1970-04-01 1973-04-17 Foseco Int Apparatus for use in lining cavities

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960199A (en) * 1973-12-21 1976-06-01 Foseco Trading A.G. Expansible frame hot topping apparatus with wedge insertion means

Also Published As

Publication number Publication date
GB1359731A (en) 1974-07-10
FR2141996B1 (enrdf_load_stackoverflow) 1977-12-23
FR2141996A1 (enrdf_load_stackoverflow) 1973-01-26
DE2229189B2 (de) 1978-03-09
JPS5037140B1 (enrdf_load_stackoverflow) 1975-12-01
DE2229189C3 (de) 1978-10-26
DE2229189A1 (de) 1972-12-28

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