US3730252A - Process for pouring liquid melts from metallurgical vessels - Google Patents

Process for pouring liquid melts from metallurgical vessels Download PDF

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Publication number
US3730252A
US3730252A US00214165A US3730252DA US3730252A US 3730252 A US3730252 A US 3730252A US 00214165 A US00214165 A US 00214165A US 3730252D A US3730252D A US 3730252DA US 3730252 A US3730252 A US 3730252A
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United States
Prior art keywords
pouring
screen
melt
vessel
container
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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
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US00214165A
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English (en)
Inventor
E Schnurrenberger
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Interstop AG
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Interstop AG
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Filing date
Publication date
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Publication of US3730252A publication Critical patent/US3730252A/en
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/44—Consumable closure means, i.e. closure means being used only once
    • B22D41/46—Refractory plugging masses
    • B22D41/465—Unplugging a vessel discharge port

Definitions

  • ABSTRACT A process and apparatus for pouring a liquid melt from a metallurgical vessel such as a ladle wherein the pouring-out opening is provided with a solidification preventing, loose filler, before the vessel is filled with the liquid melt.
  • the pouring-in opening of the container prior to pouring which receives the liquid melt is covered with a protective screen inclined in relation to the axis of the pouring jet.
  • the screen consists of a material that cannot be inflamed by the filler but is inflammable by the melt.
  • the protective screen between the pouring-out opening of the vessel and the pouringin Opening of the container to receive the liquid melt may be paper, cardboard or areadily inflammable synthetic resin.
  • the screen may have a thickness of about 1 2 mm and a smooth surface on the side which faces the outflowing melt.
  • the screen may be a conically shaped protective screen or a roof-shaped protective screen.
  • the invention relates to a process for pouring liquid melts from metallurgical vessels such as particularly ladles, wherein a solidification-preventing, loose filler is introduced into the discharge opening of the vessels prior to the filling of the vessels with the liquid melt, which filler is to prevent a solidification of the melt in the relatively narrow through-flow channel prior to the start of pouring casting and to secure an uninterrupted pouring-out of the melt.
  • the sand which is introduced in advance prevents the contact of the melt, introduced into the ladle, with the freezing-promoting zones of the refractory ceramic closure parts, that are relatively colder in relation to the bottom brickwork of the ladle which is subjected to the direct action of the melt.
  • This process has the disadvantage that, during the pouring, the sand introduced in advance reaches the casting mold and contaminates the casting. In order "to avoid such a contamination, it is also possible to pour out initially over a scrap iron mold, then to close the discharge opening and, subsequently, to start the pouring procedure proper.
  • valuable melt material is lost in this connection, so that one does not like to apply this procedure for reasons of its wastefulness.
  • An object of the invention is to avoid the known difficulties and disadvantages and to produce a process associated with an apparatus for pouring liquid melts, which process and apparatus should prevent in a reliable manner the entry of sand (introduced in the pouring-out spout of the pouring vessel before the vessel is filled, for the purpose of preventing the freezing) into
  • the invention solves the problem in such a manner that, prior to pouring, the pouring-in opening of the container which receives the liquid'melt is covered with a protective screen inclined in relation to the axis of the pouring jet and consisting of a material that cannot be inflamed by the tiller but is inflammable by the melt, preferably paper.
  • This protective screen may advantageously consist of a paper material having a thickness of l 2 mm and a smooth surface on the side facing the outflowing rnelt.
  • the solidification-preventing filler e.g., sand
  • the solidification-preventing filler which is discharged first during the pouring from the spout of the pouring container, slides over the inclined surface of the protective screen laterally beyond the edge of the casting mold or chill and the following liquid melt passes into the mold or chill free of impurities while the protective screen is burned.
  • a further object is to provide the protective screen in the shape of a cone or a roof.
  • FIG. 1 is a perspective view of a protective screen in the shape of a hollow cone
  • FIG. 2 is a similar view of a roof-shaped embodiment of such a screen
  • FIGS. 3 5 show cross-sectional views of examples of application of the process of the invention employing a protective screen.
  • FIG. 3 shows a hollow-cone protective screen of paper 1 which, in the case of top casting, is placed as it were a hat on a chill 2 in front of the spout 3 designating the spout of a casting ladle, which is not illustrated, and it can be seen that, during pouring, sand 4 which is discharged first from the spout slides over the protective screen and along the sides of the chill.
  • the protective screen 1 is placed on the funnel of a funnel pipe 5.
  • FIG. 5 which represents a continuous casting operation the protective screenl is placed over a pouring-in opening 6 of a tundish 7.
  • the protective screen may also be suspended from the spout as by means of a wire. Besides, it may consist of cardboard or a readily inflammable synthetic resin.
  • a process for pouring a liquid melt froma metallurgical vessel to a container comprising providing a solidification-preventing loose filler in the pouring-out opening of said vessel before said vessel is filled with the liquid melt, covering the pouring-in opening of the container prior to pouring with a protective screen inclined in relation to the axis of the pouring jet and consisting of a material that cannot be inflamedby said filler but is inflammable by said melt, and discharging said filler from saidopening whereby the filler material slides over the inclined surface of said screen followed by the liquid melt which inflames said screen and passes into said container.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
US00214165A 1971-01-08 1971-12-30 Process for pouring liquid melts from metallurgical vessels Expired - Lifetime US3730252A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2100632A DE2100632B2 (de) 1971-01-08 1971-01-08 Verfahren und Vorrichtung zum Gießen von flüssigen Schmelzen aus metallurgischen Behältern

Publications (1)

Publication Number Publication Date
US3730252A true US3730252A (en) 1973-05-01

Family

ID=5795366

Family Applications (1)

Application Number Title Priority Date Filing Date
US00214165A Expired - Lifetime US3730252A (en) 1971-01-08 1971-12-30 Process for pouring liquid melts from metallurgical vessels

Country Status (7)

Country Link
US (1) US3730252A (enExample)
AT (1) AT315400B (enExample)
CH (1) CH547141A (enExample)
DE (1) DE2100632B2 (enExample)
FR (1) FR2121530B1 (enExample)
GB (1) GB1360734A (enExample)
SE (1) SE367558B (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919370A (en) * 1972-07-21 1975-11-11 Profile Expanded Plastics Limi Moulding heat expandable thermoplastic material
US4836270A (en) * 1988-02-16 1989-06-06 Design Packaging, Inc. Consumable deflector tent
US5390723A (en) * 1992-03-09 1995-02-21 Mohla; Prem P. Method of treating casting metals
CN108015261A (zh) * 2017-12-01 2018-05-11 中钢集团邢台机械轧辊有限公司 一种防止挡砂帽与浇口杯粘连的铸造方法
CN110303123A (zh) * 2019-08-02 2019-10-08 建龙北满特殊钢有限责任公司 一种大包引流剂外接装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8527264D0 (en) * 1985-11-05 1985-12-11 Foseci International Ltd Continuous casting device
CN112620622A (zh) * 2020-12-11 2021-04-09 北京首钢股份有限公司 一种钢包引流砂分离装置和中间包

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US947835A (en) * 1908-08-04 1910-02-01 Scott Meissner Fusing process.
DE1132297B (de) * 1959-07-10 1962-06-28 Henri Jean Daussan Umhuellung fuer den Giessstrahl beim fallenden Kokillenguss

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US947835A (en) * 1908-08-04 1910-02-01 Scott Meissner Fusing process.
DE1132297B (de) * 1959-07-10 1962-06-28 Henri Jean Daussan Umhuellung fuer den Giessstrahl beim fallenden Kokillenguss

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919370A (en) * 1972-07-21 1975-11-11 Profile Expanded Plastics Limi Moulding heat expandable thermoplastic material
US4836270A (en) * 1988-02-16 1989-06-06 Design Packaging, Inc. Consumable deflector tent
US5390723A (en) * 1992-03-09 1995-02-21 Mohla; Prem P. Method of treating casting metals
CN108015261A (zh) * 2017-12-01 2018-05-11 中钢集团邢台机械轧辊有限公司 一种防止挡砂帽与浇口杯粘连的铸造方法
CN110303123A (zh) * 2019-08-02 2019-10-08 建龙北满特殊钢有限责任公司 一种大包引流剂外接装置

Also Published As

Publication number Publication date
GB1360734A (en) 1974-07-24
CH547141A (de) 1974-03-29
DE2100632B2 (de) 1974-07-25
AT315400B (de) 1974-05-27
SE367558B (enExample) 1974-06-04
FR2121530B1 (enExample) 1976-03-26
DE2100632A1 (de) 1972-08-17
FR2121530A1 (enExample) 1972-08-25

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