US3501125A - Multiple chill mold device - Google Patents

Multiple chill mold device Download PDF

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Publication number
US3501125A
US3501125A US639552A US3501125DA US3501125A US 3501125 A US3501125 A US 3501125A US 639552 A US639552 A US 639552A US 3501125D A US3501125D A US 3501125DA US 3501125 A US3501125 A US 3501125A
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US
United States
Prior art keywords
mold
metal
plate
molds
holes
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Expired - Lifetime
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US639552A
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English (en)
Inventor
Torgny Eric Charles Fransson
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Saab Bofors AB
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Bofors AB
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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
    • B22D9/00—Machines or plants for casting ingots
    • B22D9/006—Machines or plants for casting ingots for bottom casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D35/00—Equipment for conveying molten metal into beds or moulds
    • B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
    • B22D35/045—Runner base plates for bottom casting ingots

Definitions

  • the present invention relates to a multiple chill mold device for simultaneously casting several ingots according to the so-called bottom casting process.
  • a more specific object of the invention is to provide a novel and improved multiple chill mold device of the general kind above referred to which permits a convenient and rapid removal of all burrs formed in the feed channels or ducts of the device.
  • a multiple chill mold device comprising a plurality of chill molds open at one end and closed at the other end by a bottom wall having a feed hole therethrough and a base plate having a center bore therethrough and in one of its sides a plurality of grooves, one for each chill mold, radially extending from the center bore in communication therewith.
  • the chill molds are secured at their closed end to the other side of the plate in circumferential arrangement about the center hole of the plate in upright position with the bore hole of each mold in communication with the outer end of the respective groove.
  • the open upper side of each chill mold is closed by a so-called hot top which may be held in position by a counterweight and the upper end of the pouring tube is extended by a removable tube part.
  • the holes in the plate and through the bottom of the molds and also the grooves are preferably lined with heat refractory material, for instance, with hollow so-called fire-clay bricks which are cemented to the adjacent walls of the plate and the mold.
  • the entire device is placed upon a suitable flat surface such as a plane metal surface, or also directly upon the floor of a foundry to secure the liners safely in position.
  • molten metal poured into the pouring tube from the top end thereof will fill all the mold cavities and also the grooves in the plate, the holes in the plate and in the chill molds and also the pouring tube itself.
  • the hot tops are removed thereby exposing the top portion of the ingots.
  • the ingots are now jerked loose in the molds and also broken free of the metal in the mold holes.
  • the entire mold device is now lifted and turned upside down, for instance, by means ofvbrackets on the base plate and a suitable crane.
  • the loosened ingots fall down and the upper loose part of the pouring tube also falls down.
  • the part of the hardened metal now protruding from the pouring tube is then bounced hard against a suitable surface.
  • the metal remaining in the mold device after removal of the ingots therefrom is a structure in the form of a bar having a thickness corresponding to the inner diameter of the pouring tube, and at one end several radially extending arms each defined by one of the grooves in the plate. At the end of each arm there is a short transverse extension caused by the bore holes in the molds.
  • FIG. 1 is an elevational perspective view of an assembled multiple mold device according to the invention ready for casting
  • FIG. 2 is a sectional view of FIG. 1;
  • FIG. 3 is an elevational sectional view of the lower part of the device on an enlarged scale
  • FIG. 4 is a perspective view of the device after completion of the casting operation and in an upside down position for removal of the finished ingots.
  • the exemplified ⁇ multiple chill mold device comprises a base plate 1 with a center bore 2 and a plurality of bores in circumferential arrangement about the center bore, two holes 3 and 4 being shown.
  • the lower part of center hole 2 is widened at 5 and grooves or channels 6 to 9 in the bottom side of plate 1 extend radially from center hole portion 5.
  • the outer end of each groove issues into one of the outer plate holes 3, 4
  • the opposite or upper side of the plate mounts a pouring gate in the form of a tube composed of a lower section and an upper section 11.
  • the lower section 10 is suitably secured to plate 1, for instance, by screws (not shown) extending through the plate from the bottom side thereof.
  • the upper section 11 is readily removable from the lower part.
  • the tube sections define pouring ducts 12 and 13, the upper duct 13 being preferably funnel-shaped and the lower part communicating via the central plate hole 2, 5 with grooves 6 to 9 and outer plate holes 3, 4.
  • tube part 10 is widened to form a flange 14 having a vertical peripheral rim.
  • This rim constitutes a locating surface for base portions 21 and 22 of a plurality of chill -molds to 20 disposed on plate 1 about tube 10, 11 in circumferential arrangement.
  • Each mold is open at its top end and closed at its other end by a bottom wall including bore holes 2S and 25a communicating with plate holes 3 and 4.
  • the chill molds are suitably secured to plate 1 for instance, by screw bolts 23 and 24.
  • the upper ends of the molds are closed by hot tops 26 to 31 which may be held in position by counterweights (not shown).
  • each mold is lined with a suitable liner made of heat refractory material such as a hollow fire-clay brick.
  • a brick 32 is shown for mold hole 25. The lower end of the brick connects with a brick 33 placed in one of the grooves in plate 1. As can best be seen in FIG. 3, one end of brick 33 is closed and the other communicates with a hollow brick 34 which, in turn, communicates with bricks 35 and 36.
  • Brick 36 has an opening which is located in alignment with center bore 2 in plate 1 and more specifically, with the opening of a refractory liner 37 inserted in tube portion 10. All the bricks are suitably cemented in the grooves and the holes respectively.
  • Mortar or cement for securing liner 37 is indicated at 38.
  • the channels through the bricks may have any cross-section. A circular cross-section has been found to be particularly suitable. l
  • Brackets 39 and 40 are secured to plate 1, preferably at diametrically opposite edges thereof.
  • the brackets mount trunnions 41 and 42 respectively.
  • a double hook 43 and 44 of a suitable crane or hoist may engage the trunnions for lifting and turning the entire device upside down for a purpose which will be more fully described hereinafter.
  • a support 43a which may be a second base plate or part of the floor.
  • holes and grooves are also filled with metal the quantity of which should be such that the upper level of the metal is close to the rim of tube section 11, or at least substantially above the level of lower tube part 10.
  • the device is now dropped or otherwise caused to strike with a hard impact, a suitable surface such as support 43a.
  • a suitable surface such as support 43a.
  • the metal bar formed in duct 13, 12 is pushed up and with it the spider-like structure formed by the metal in grooves 6 to 9 and the remainders of metal previously formed in holes 3, 4 and 2S, 25a are forced loose and on reinversion of the device will fall out of the device which is thus free of metal.
  • all the unwanted metal left in the device can be easily removed therefrom in one piece.
  • the liners will also fall out, often in more or less broken condition.
  • the cavities, the holes and the grooves of the mold are then cleaned and thereupon relined.
  • a multiple chill mold device for simultaneously casting a plurality of ingots, said device comprising in combination:
  • a plurality of molds each provided with a cavity having a substantially conical volume with the largest diameter at its upper end and each open at its upper end and closed at its lower end by a bottom wall having a feed hole which communicates in flow series with its related cavity therethrough;
  • a base plate having a center bore therethrough and on which the bottom walls are lixedly secured to arrange the lmolds circumferentially about the center bore, the base plate further provided with a mold hole for each mold communicating in ow series with the feed hole of that mold, the base plate in its side remote from the molds provided with a stepped opening communicating in flow series with the center bore and one radially extending groove for each mold communicating in flow series between the stepped opening and the feed hole of that mold;
  • a pouring tube xedly secured to the base plate on the same side as the molds and axially arranged about the center bore to deliver molten metal thereto;
  • each top removably placed upon the upper end of each of the molds, each top enclosing a portion of the cavity of its mold whereby the upper part of a hardened ingot can be exposed upon removal of' said top so that said ingot can be jerked loose and free from metal in its mold hole;
  • the pouring tube comprising a lower section and an References Cited upper section, which upper section projects above UNITED STATES PATENTS the molds and is removably connected to the lower section, whereby the upper section is removable to llg 9/91 Hoyle et al 249 109 X expose hardened metal which thereby can be imi 6921076 llgs ltitsle-r Egli-6611 pacted to remove hardened metal from the pouring tube, the stepped opening, the radially extending FOREIGN PATENTS grooves and the feed holes substantially all together; 510,845 8/1939 Gret Germany.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
US639552A 1966-05-27 1967-05-18 Multiple chill mold device Expired - Lifetime US3501125A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7364/66A SE324431B (en, 2012) 1966-05-27 1966-05-27

Publications (1)

Publication Number Publication Date
US3501125A true US3501125A (en) 1970-03-17

Family

ID=20271157

Family Applications (1)

Application Number Title Priority Date Filing Date
US639552A Expired - Lifetime US3501125A (en) 1966-05-27 1967-05-18 Multiple chill mold device

Country Status (12)

Country Link
US (1) US3501125A (en, 2012)
AT (1) AT269389B (en, 2012)
BE (1) BE696929A (en, 2012)
BR (1) BR6788024D0 (en, 2012)
CH (1) CH456863A (en, 2012)
DE (1) DE1301445B (en, 2012)
ES (1) ES338465A1 (en, 2012)
FI (1) FI46336C (en, 2012)
GB (1) GB1181816A (en, 2012)
NL (1) NL6702989A (en, 2012)
NO (1) NO122392B (en, 2012)
SE (1) SE324431B (en, 2012)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670089A (en) * 1966-10-25 1972-06-13 Inst Elektroswarki Patona Apparatus for electroslag remelting of metals with molten slag introduction
US3765473A (en) * 1971-07-23 1973-10-16 U Brusa Ingotting machine
US3823759A (en) * 1967-09-21 1974-07-16 Patent Management Inc Method for providing and using an installation for the electroslag remelting of metallic consumable electrodes
US4431397A (en) * 1978-10-23 1984-02-14 Fried Robert P Apparatus for producing molded plastic articles
US4512544A (en) * 1982-09-01 1985-04-23 Microdot Inc. Bottom pour ingot mould system
US20130294473A1 (en) * 2012-05-03 2013-11-07 Kepco Nuclear Fuel Co., Ltd. Melting apparatus for melt decontamination of radioactive metal waste
CN110421124A (zh) * 2019-09-06 2019-11-08 大同煤矿集团有限责任公司 一种铸造铸钢支架的浇注和补缩系统
CN112589061A (zh) * 2020-12-15 2021-04-02 浙江三门太和大型锻造有限公司 一种异形锭的同盘浇注工艺及异形锭

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1073988A (en) * 1912-12-13 1913-09-23 Thomas Firth And Sons Ltd Casting ingots.
US1414394A (en) * 1920-05-11 1922-05-02 Batty George Apparatus for casting ingots
US1693076A (en) * 1926-12-08 1928-11-27 Geissler Franz Casting apparatus for first quality and refined steels
GB510845A (en) * 1938-12-13 1939-08-09 Septimus Hugh Griffiths A method of self-stripping an ingot from a mould

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE466145C (de) * 1927-02-22 1928-10-01 Mannesmann Ag Giessplatte zum gleichmaessigen Fuellen von gruppenweise angeordneten Blockformen durch steigenden Guss
GB1029543A (en) * 1963-02-19 1966-05-11 Thomas Marshall & Company Loxl Improvements in and relating to the casting of metal
AT246939B (de) * 1963-12-17 1966-05-10 Andritz Ag Maschf Bodenstein für Gußformen aus feuerfestem Werkstoff

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1073988A (en) * 1912-12-13 1913-09-23 Thomas Firth And Sons Ltd Casting ingots.
US1414394A (en) * 1920-05-11 1922-05-02 Batty George Apparatus for casting ingots
US1693076A (en) * 1926-12-08 1928-11-27 Geissler Franz Casting apparatus for first quality and refined steels
GB510845A (en) * 1938-12-13 1939-08-09 Septimus Hugh Griffiths A method of self-stripping an ingot from a mould

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670089A (en) * 1966-10-25 1972-06-13 Inst Elektroswarki Patona Apparatus for electroslag remelting of metals with molten slag introduction
US3823759A (en) * 1967-09-21 1974-07-16 Patent Management Inc Method for providing and using an installation for the electroslag remelting of metallic consumable electrodes
US3765473A (en) * 1971-07-23 1973-10-16 U Brusa Ingotting machine
US4431397A (en) * 1978-10-23 1984-02-14 Fried Robert P Apparatus for producing molded plastic articles
US4512544A (en) * 1982-09-01 1985-04-23 Microdot Inc. Bottom pour ingot mould system
US20130294473A1 (en) * 2012-05-03 2013-11-07 Kepco Nuclear Fuel Co., Ltd. Melting apparatus for melt decontamination of radioactive metal waste
US9253825B2 (en) * 2012-05-03 2016-02-02 Kepco Nuclear Fuel Co., Ltd. Melting apparatus for melt decontamination of radioactive metal waste
CN110421124A (zh) * 2019-09-06 2019-11-08 大同煤矿集团有限责任公司 一种铸造铸钢支架的浇注和补缩系统
CN112589061A (zh) * 2020-12-15 2021-04-02 浙江三门太和大型锻造有限公司 一种异形锭的同盘浇注工艺及异形锭

Also Published As

Publication number Publication date
FI46336C (fi) 1973-03-12
DE1301445B (de) 1969-08-21
NL6702989A (en, 2012) 1967-11-28
SE324431B (en, 2012) 1970-06-01
ES338465A1 (es) 1968-04-01
GB1181816A (en) 1970-02-18
CH456863A (de) 1968-05-31
FI46336B (en, 2012) 1972-11-30
BE696929A (en, 2012) 1967-09-18
NO122392B (en, 2012) 1971-06-21
BR6788024D0 (pt) 1973-06-26
AT269389B (de) 1969-03-10

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