EP0120045B1 - Mode de controle et d'ouverture des orifices de coulee des recipients conteneurs de metaux liquides et dispositif de mise en o euvre - Google Patents

Mode de controle et d'ouverture des orifices de coulee des recipients conteneurs de metaux liquides et dispositif de mise en o euvre Download PDF

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Publication number
EP0120045B1
EP0120045B1 EP83902994A EP83902994A EP0120045B1 EP 0120045 B1 EP0120045 B1 EP 0120045B1 EP 83902994 A EP83902994 A EP 83902994A EP 83902994 A EP83902994 A EP 83902994A EP 0120045 B1 EP0120045 B1 EP 0120045B1
Authority
EP
European Patent Office
Prior art keywords
pouring
receptacle
cylinder
plunger
opening
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
Application number
EP83902994A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0120045A1 (fr
Inventor
Richard Detalle
Pol Detalle
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT83902994T priority Critical patent/ATE23958T1/de
Publication of EP0120045A1 publication Critical patent/EP0120045A1/fr
Application granted granted Critical
Publication of EP0120045B1 publication Critical patent/EP0120045B1/fr
Expired 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
    • 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
    • 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
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/42—Features relating to gas injection

Definitions

  • the present invention relates to the means for opening an orifice formed in a container intended to contain a material capable of solidifying, such as a molten metal, in particular steel or cast iron.
  • the wall of the container receives an internal nozzle and a fixed refractory plate pierced with orifices opposite, and a mobile external shutter.
  • the freezing of the molten metal comes from an excessive loss of heat which it undergoes in contact with the refractory materials constituting the internal nozzle of the fixed plate and of the movable plate of the shutter and the obligatory geometry of the pouring channel in this zone.
  • the product may be in the form of a solid, deformable or fusible plug, of a liquid aggregate such as for example lead or more generally in the form of a sand, for example of zircon, of silica, of chronite, pure graphite or mixed.
  • a characteristic of these proposals is that the shutter product is always supposed to flow through the pouring orifice when the shutter is opened, which can have certain drawbacks moreover.
  • a more recent invention proposes to avoid or eliminate the above-mentioned freezing of the molten metal in the runner by blowing pressurized gas into the lower part of said runner.
  • the introduction of the gas is obtained in particular by means of a gas supply opening into an additional hole at least formed in the movable obturator plate of the obturator, said hole being able to be or not closed by a refractory material permeable to gases and tight to the metal at least when the gas is allowed to pass through said material.
  • the gas can in fact continue to pass through one or more channels within a metal plug being solidified.
  • the subject of the invention is a method of controlling and opening the pouring orifices of container containers of liquid metals, which consists in preventing the freezing of the molten metal in the pouring orifice or in causing the return of the frozen metal in the sliding shutter, using a gas supplied by a gas supply line, characterized in that, before filling the container, the following is introduced into the pouring channel a cylinder of suitable dimensions in which is located a piston emerging widely inside the container, said cylinder being advantageously wedged with sand and located above a pressurized fluid inlet regulated by a distributor, said pressure being of sufficient force to propel the piston inside the container.
  • these will be made of graphite.
  • FIG. 1 there is shown schematically shown a bottom wall of a container for casting metal equipped with a casting device.
  • the wall 1 is provided with an internal nozzle 2 having a pouring channel 3. Under the bottom is located a fixed plate 4a having an orifice 5a and the movable shutter plate 4b having an orifice 5b which can be brought below the channel 3.
  • a gas supply pipe 6 in communication by a rotary distributor 7 with a pressurized gas tank 8 (fig. 2).
  • a cylinder of suitable rigid dimensions, 9, is introduced, comprising inside a sliding cylindrical piston 10 (fig. 1).
  • the cylinder can be made of steel or graphite and the piston - its dimensions and characteristics must oppose the infiltration of the metal inside the cylinder - graphite.
  • the cylinder which emerges widely inside the container, is wedged in the vertical position using sand 11, which also seals between the cylinder and the wall of the pouring channel.
  • the distributor which is preferably of the rotary type, once set in rotation, at an adjustable speed, makes it possible to introduce pressurized gas into the orifice 5, preferably by successive pulses, which produces a succession of impact shocks. variable amplitude and frequency to act on the piston and propel it inward.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Moulding By Coating Moulds (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Coating With Molten Metal (AREA)
EP83902994A 1982-09-28 1983-09-28 Mode de controle et d'ouverture des orifices de coulee des recipients conteneurs de metaux liquides et dispositif de mise en o euvre Expired EP0120045B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83902994T ATE23958T1 (de) 1982-09-28 1983-09-28 Verfahren zur ueberwachung und zum oeffnen der giessoeffnungen von fluessige metalle enthaltenden gefaessen und vorrichtung zur durchfuehrung des verfahrens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8216322 1982-09-28
FR8216322A FR2533473A1 (fr) 1982-09-28 1982-09-28 Mode de controle et d'ouverture des orifices de coulee des recipients conteneurs de metaux liquides et autres, et dispositif de mise en oeuvre

Publications (2)

Publication Number Publication Date
EP0120045A1 EP0120045A1 (fr) 1984-10-03
EP0120045B1 true EP0120045B1 (fr) 1986-12-03

Family

ID=9277815

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83902994A Expired EP0120045B1 (fr) 1982-09-28 1983-09-28 Mode de controle et d'ouverture des orifices de coulee des recipients conteneurs de metaux liquides et dispositif de mise en o euvre

Country Status (7)

Country Link
US (1) US4688704A (enrdf_load_stackoverflow)
EP (1) EP0120045B1 (enrdf_load_stackoverflow)
JP (1) JPS59501739A (enrdf_load_stackoverflow)
AT (1) ATE23958T1 (enrdf_load_stackoverflow)
DE (1) DE3368025D1 (enrdf_load_stackoverflow)
FR (1) FR2533473A1 (enrdf_load_stackoverflow)
WO (1) WO1984001315A1 (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3506426C1 (de) * 1985-02-23 1985-11-28 Stopinc Ag, Baar Verfahren zum Abgiessen von Metallschmelze aus einem ein Absperrorgan aufweisenden Behaelter
US4755994A (en) * 1985-09-06 1988-07-05 Republic Telcom Systems Corporation Capacity expander for telephone line
US5167902A (en) * 1991-07-19 1992-12-01 Tri-C Corporation Device for piercing an obstruction in a well-block opening of a ladle for transporting molten steel
DE19620592A1 (de) * 1996-05-22 1997-11-27 Dislich Margrit Verfahren zum Ausgießen einer Stahlschmelze
FI20040678A7 (fi) * 2004-05-13 2005-11-14 Outokumpu Tech Oy Liukusuljin sulan metallin virtauksen säätämiseksi
DE102014114301A1 (de) * 2014-10-01 2016-04-07 Hermann Rauen GmbH & Co vorm. Steinhandel Rauen Vorrichtung und Verfahren zum Öffnen eines Ausgusskanals von metallurgischen Gefäßen

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2348199A (en) * 1943-10-20 1944-05-09 Henry G Freeman Ladle for molten metal and method of sealing closures therein
CH478613A (de) * 1968-07-12 1969-09-30 Interstop Ag Schiebeverschluss für mit einer Bodenausgussöffnung versehene Behälter zum Giessen von flüssigen Metallen, insbesondere Stahl
US3581948A (en) * 1969-08-11 1971-06-01 Interstop Ag Sliding gate of a casting ladle for pouring liquid metals
US3684267A (en) * 1970-01-12 1972-08-15 United States Steel Corp Apparatus for introducing gas to hot metal in a bottom-pour vessel
US3809146A (en) * 1972-02-18 1974-05-07 Steel Corp Method of opening an intermediate vessel nozzle for continuous casting
GB1494477A (en) * 1973-11-16 1977-12-07 Stopinc Ag Slide gate nozzle
FR2395095A1 (fr) * 1977-06-24 1979-01-19 Detalle Pol Perfectionnements aux obturateurs a tiroir pour poches de coulee ou autres recipients de metal en fusion presentant un trou de coulee
GB1581058A (en) * 1978-03-23 1980-12-10 Robson Refractories Steel casting
FR2429063A1 (fr) * 1978-06-22 1980-01-18 Eurdic Sa Procede et dispositif de regulation de debit du gaz introduit dans l'obturateur exterieur d'un conteneur metallurgique
CA1151835A (en) * 1979-02-17 1983-08-16 Jan O. Kristiansen Metallurgical pouring vessels
US4325495A (en) * 1979-07-16 1982-04-20 Pulsonics Corporation Storage bin activator device and method for restoring bulk material free flow
GB2094954B (en) * 1981-03-13 1984-05-10 Flogates Ltd Metal pouring apparatus
US4450986A (en) * 1982-07-09 1984-05-29 Harasym Michael F Apparatus for unplugging a vessel discharge port

Also Published As

Publication number Publication date
ATE23958T1 (de) 1986-12-15
FR2533473B1 (enrdf_load_stackoverflow) 1985-03-22
US4688704A (en) 1987-08-25
DE3368025D1 (en) 1987-01-15
WO1984001315A1 (fr) 1984-04-12
FR2533473A1 (fr) 1984-03-30
EP0120045A1 (fr) 1984-10-03
JPS59501739A (ja) 1984-10-18

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