US3836112A - Flat folded hot topping assemblies - Google Patents

Flat folded hot topping assemblies Download PDF

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Publication number
US3836112A
US3836112A US00214836A US21483672A US3836112A US 3836112 A US3836112 A US 3836112A US 00214836 A US00214836 A US 00214836A US 21483672 A US21483672 A US 21483672A US 3836112 A US3836112 A US 3836112A
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US
United States
Prior art keywords
hot top
hot
lining material
top lining
slabs
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
US00214836A
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English (en)
Inventor
E Jago
Cray W Mc
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
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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 US00214836A priority Critical patent/US3836112A/en
Application granted granted Critical
Publication of US3836112A publication Critical patent/US3836112A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B22D7/06—Ingot moulds or their manufacture
    • B22D7/10—Hot tops therefor
    • B22D7/106—Configuration of hot tops
    • 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
    • B22D7/102—Hot tops therefor from refractorial material only

Definitions

  • Hot topping assemblies consist of an endless belt f [58] Fleld of Search 249/197-202, hot topping material which can be folded flat for Stop 249/106; 229/16 A, 16 R, 16 D, 37 R, 37 E; age and opened out to use 2 Claims, 3 Drawing Figures RELATED APPLICATION This is a continuation-in-part of our application, filed Nov. 30, 1971, entitled HOT TOPPING ASSEMBLIES Ser. No. 203,342, now abandoned.
  • This invention relates to hot topping assemblies.
  • the head metal In the casting of molten metal, it is customary to delay the solidification of the topmost portions of the molten metal (referred to simply as the head metal) in order to allow feed of molten metal from the head metal to the remainder of the casting to compensate for the shrinkage on solidification.
  • the delay must be effected either by thermally insulating the head metal against heat loss, or by supplying heat thereto, or both.
  • the present invention is concerned with assemblies which may constitute hot tops.
  • a hot topping assembly comprising an endless belt of hot top lining material which may be opened from a substantially flat folded two-layer configuration to an open rectangular or other polygonal configuration.
  • the endless belt can consist of a closed loop of flexible hot top lining material bound by at least one closed loop strap.
  • the endless belt may be made up of a number of linked sections of hot top lining material, the linking between the sections being effected by any convenient method.
  • One such method is to join sections by hinge-strips of flexible material, e.g. a flexible plastics sheet material or a textile strip.
  • an endless strip of flexible material may have sections of hot top lining material adhered along the whole of its length.
  • fullthickness sections of hot top lining material may be linked by thinner portions of the same material.
  • the number of sections of hot top lining material is most preferably four, each section corresponding to one wall of a rectangular or generally rectangular section ingot, billet or slab mould.
  • a highly preferred configuration is that of two sections, each of which sections is divided into two further sections by a fold line or portion of lesser thickness material. If desired, the number of sections may be very high, giving an endless belt which may be expanded to line a circular-section mould.
  • the four sections may be rectangular or trapezoidal, the latter in order to allow for mould taper. if the hot top lining material is rigid, then it is preferred to use trapezoidal slabs to obtain a good fit in the mould or headbox. If the material is deformable, then rectangular sections may be used and force-fitted into place.
  • the hot top lining material may be exothermic or heat insulating in nature. Most preferred are heat insulating materials with a considerable degree of inherent flexibility and compressibility, in order that they may easily be pressfitted into the mould or head box cavity to be lined, and in order that rectangular sections may fit into tapered moulds or head boxes.
  • Such heat insulating materials generally comprise refractory filler, inorganic or organic fibre, and a binding agent.
  • refractory filler inorganic or organic fibre
  • binding agent a binding agent
  • a typical preferred hot top lining composition for use in this present invention is as follows'(percentages by weight):
  • the hot top assemblies of the present invention present a number of advantages in use. They are transported and stored in flat folded condition, and this is not only economic of space, but also gives a pack which is not easily damaged or rendered useless in handling.
  • Another advantage lies in the fact that an entire lining assembly can be conveniently picked up, handled and inserted by a setting operator as a single unit, in comparison with hot top lining assemblies consisting of 4 to 8 separate components.
  • the hot top setting operation can thus be done more quickly with hot top assemblies according to this invention.
  • the hot top assembly When it is desired to use the hot top assembly, it is merely folded out to an open shape corresponding to the cavity to be lined, located in position and fixed there, e.g. by nailing, clips, or adhesive, or even in some cases by mere pressfitting.
  • the most preferred mode of manufacture is to form by known methods a single foldable cylinder, two foldable, or four separate hot top lining slabs, arrange and tie longitudinally with a flexible tie strip.
  • a transverse tie strip may be added in order to prevent the assembly opening out before it is desired to be used, this transverse strip being severed by the user.
  • the longitudinal tie strip may be attached to the hot top lining slabs by, for example, staples or adhesive, or it may merely be tied or otherwise affixed round the hot top.
  • One preferred method is to use welded polyethylene or other form of plastic strip. If desired, slabs may have depressions or grooves serving to keep the ties correctly located.
  • FIG. 1 is a plan view of a hot top assembly according to the invention
  • FIG. 2 is a section along the lines 2-2 of FIG. 1;
  • FIG. 3 is a perspective view of the open hot top assembly of FIG. 1.
  • the assembly ready for shipment thus consists of two flat slabs of heat insulating hot top lining material 1 which are face to face and which can have a folding groove 2 on their rear side.
  • the slabs l are held together by means of tie strips 3 which encircle the slabs l longitudinally, and which locate in the optional slots 4 at the ends of the slabs.
  • the arrangement shown in FIGS. 1 and 2 is merely folded out to form the hot top configuration shown in FIG. 3, and fitted into a mould head or head box.
  • a hot topping assembly consisting essentially of a closed loop of hot top lining material which may be opened from a substantially flat folded two-layer configuration to an open shape of a hollow polygonal sleeve, the hot top lining material consisting of two superimposed hot top lining slabs having fold lines, and surrounding the hot top lining material, at least one flexible closed loop strap encircling the slabs in a direcmaterial, at least one flexible closed loop strap.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
US00214836A 1971-01-01 1972-01-03 Flat folded hot topping assemblies Expired - Lifetime US3836112A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US00214836A US3836112A (en) 1971-01-01 1972-01-03 Flat folded hot topping assemblies

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB16071 1971-01-01
US20334271A 1971-11-30 1971-11-30
US00214836A US3836112A (en) 1971-01-01 1972-01-03 Flat folded hot topping assemblies

Publications (1)

Publication Number Publication Date
US3836112A true US3836112A (en) 1974-09-17

Family

ID=9699461

Family Applications (1)

Application Number Title Priority Date Filing Date
US00214836A Expired - Lifetime US3836112A (en) 1971-01-01 1972-01-03 Flat folded hot topping assemblies

Country Status (9)

Country Link
US (1) US3836112A (fr)
JP (1) JPS517129B2 (fr)
CA (1) CA955726A (fr)
DE (1) DE2164977C2 (fr)
ES (1) ES175761Y (fr)
FR (1) FR2119991B1 (fr)
GB (1) GB1344162A (fr)
IT (1) IT945845B (fr)
SE (1) SE383978B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081168A (en) * 1974-09-12 1978-03-28 Foseco Trading, A.G. Hot top lining slabs and sleeves
US4186908A (en) * 1978-05-30 1980-02-05 Insul Company, Inc. Expandable hot top for ingot moulds

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6120036Y2 (fr) * 1981-06-01 1986-06-17

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2173871A (en) * 1936-04-20 1939-09-26 Zalkind Philip Collapsible insulating casing
GB906478A (en) * 1959-10-28 1962-09-19 Henri Jean Daussan Improvements in or relating to a method and a device intended for the improvement ofthe contexture of ingots during their setting
FR81268E (fr) * 1962-03-07 1963-08-23 Fonderite Plaque de revêtement pour lingotières ou moules
US3103046A (en) * 1961-06-01 1963-09-10 Bate Micheal Donald La Consumable hot top
AT239459B (de) * 1962-10-02 1965-04-12 Nolten K G Blockformeinsatz für Gießformen der Stahlindustrie
US3216689A (en) * 1962-09-17 1965-11-09 Oglebay Norton Co Hot top refractory and/or exothermic unit
US3456914A (en) * 1965-10-23 1969-07-22 Johns Manville Inorganic fiber riser sleeves
US3478999A (en) * 1968-04-29 1969-11-18 Oglebay Norton Co Refractory panel unit with hinge means and frangible portions
US3660122A (en) * 1970-02-05 1972-05-02 Susquehanna Corp Hot top liner and refractory ring combination for use with metal casing that is hot

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1798830U (de) * 1959-08-17 1959-10-29 Wilhelm Voellings Einsatz fuer kokillen.
US3391726A (en) * 1964-11-03 1968-07-09 Sandvikens Jernverks Ab Hot top lining
DE1583707A1 (de) * 1967-12-20 1970-08-20 Steibe Gmbh Verfahren zur Herstellung einer Kokillenauskleidung aus einer oder mehreren nebeneinander angeordneten und miteinander verbundenen Wellpappenlagen
LU58058A1 (fr) * 1968-02-24 1969-06-10
DE1989508U (de) * 1968-04-13 1968-07-18 Schmitz Pa Ha Ge Isolierplatte fuer giessformen.
GB1294138A (en) * 1969-06-30 1972-10-25 Foseco Trading Ag Hot tops for ingot moulds
DE7033620U (de) * 1970-09-10 1970-12-10 Gustav Saure Kg Isolierkoerper zur auskleidung von kokillen fuer giessereizwecke.

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2173871A (en) * 1936-04-20 1939-09-26 Zalkind Philip Collapsible insulating casing
GB906478A (en) * 1959-10-28 1962-09-19 Henri Jean Daussan Improvements in or relating to a method and a device intended for the improvement ofthe contexture of ingots during their setting
US3103046A (en) * 1961-06-01 1963-09-10 Bate Micheal Donald La Consumable hot top
FR81268E (fr) * 1962-03-07 1963-08-23 Fonderite Plaque de revêtement pour lingotières ou moules
US3216689A (en) * 1962-09-17 1965-11-09 Oglebay Norton Co Hot top refractory and/or exothermic unit
AT239459B (de) * 1962-10-02 1965-04-12 Nolten K G Blockformeinsatz für Gießformen der Stahlindustrie
US3456914A (en) * 1965-10-23 1969-07-22 Johns Manville Inorganic fiber riser sleeves
US3478999A (en) * 1968-04-29 1969-11-18 Oglebay Norton Co Refractory panel unit with hinge means and frangible portions
US3660122A (en) * 1970-02-05 1972-05-02 Susquehanna Corp Hot top liner and refractory ring combination for use with metal casing that is hot

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081168A (en) * 1974-09-12 1978-03-28 Foseco Trading, A.G. Hot top lining slabs and sleeves
US4186908A (en) * 1978-05-30 1980-02-05 Insul Company, Inc. Expandable hot top for ingot moulds

Also Published As

Publication number Publication date
ES175761U (es) 1972-08-16
ES175761Y (es) 1973-05-01
SE383978B (sv) 1976-04-12
FR2119991B1 (fr) 1974-09-27
CA955726A (en) 1974-10-08
DE2164977C2 (de) 1982-07-01
DE2164977A1 (de) 1972-07-20
JPS4848324A (fr) 1973-07-09
IT945845B (it) 1973-05-10
JPS517129B2 (fr) 1976-03-05
FR2119991A1 (fr) 1972-08-11
GB1344162A (en) 1974-01-16

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