EP0232470A1 - Gasspülstopfen für ein Schmelzengefäss - Google Patents

Gasspülstopfen für ein Schmelzengefäss Download PDF

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Publication number
EP0232470A1
EP0232470A1 EP86114859A EP86114859A EP0232470A1 EP 0232470 A1 EP0232470 A1 EP 0232470A1 EP 86114859 A EP86114859 A EP 86114859A EP 86114859 A EP86114859 A EP 86114859A EP 0232470 A1 EP0232470 A1 EP 0232470A1
Authority
EP
European Patent Office
Prior art keywords
gas
sealing body
channel
purging
gas channel
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.)
Withdrawn
Application number
EP86114859A
Other languages
German (de)
English (en)
French (fr)
Inventor
Gerd-Erich Dobner
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.)
Didier Werke AG
Original Assignee
Didier Werke AG
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 Didier Werke AG filed Critical Didier Werke AG
Publication of EP0232470A1 publication Critical patent/EP0232470A1/de
Withdrawn legal-status Critical Current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
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B22D1/002—Treatment with gases
    • B22D1/005—Injection assemblies therefor
    • 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
    • B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
    • B22D41/18—Stopper-rods therefor
    • B22D41/186—Stopper-rods therefor with means for injecting a fluid into the melt

Definitions

  • the invention relates to a gas purging plug for a melt vessel, the gas purging plug having an axial gas channel and a holding device at its end facing away from its gas purging opening.
  • atmospheric oxygen which mixes with the purging gas, is drawn in via the mounting device when purging gas, for example argon, is introduced.
  • purging gas for example argon
  • the object of the invention is to propose a gas purging plug of the type mentioned, in which air is not sucked in when purging gas is supplied.
  • the above object is achieved in the case of a gas purging plug of the type mentioned at the outset in that a sealing body is inserted into the gas channel, which seals an upper section of the gas channel in a gas-tight manner against a lower section of the gas channel leading to the gas purging opening, and in that in the lower section a gas line flows.
  • a gas purging plug 1 has an axial gas channel 2, which is provided at the bottom with a gas purging opening 3.
  • a gas-permeable purging piece 4 is inserted into the gas purging opening 3.
  • a holding device 5 is arranged at the top of the gas purging plug 1.
  • a gas-tight sealing body 6 is inserted, which stands on a step 7 of the gas channel 2 and is mortar-sealed in the gas channel 2.
  • the sealing body 6 thus separates an upper section 2 ′ of the gas channel 2 from a lower section 2 ′′ of the gas channel 2.
  • a gas passage opening 8 is formed on the sealing body 6, into which a sleeve 9 having an internal thread is inserted.
  • One end 10 of a gas pipe 11 is screwed into the internal thread of the sleeve 9.
  • a guide rod 12 projects into the upper section 2 'of the gas channel 2.
  • a cemented retaining pin 13 is inserted through the gas purging plug 1 and the guide rod 12.
  • a nut 14 is screwed onto the guide rod 12 and presses on the upper edge of the gas flushing plug 1 via two disks 15.
  • the gas line pipe 11 is inserted into the gas flushing plug 1 and runs next to the guide rod 12 to the sealing body 6. It opens into the lower one Section 2 "of the gas channel 2.
  • purge gas is introduced through the gas line pipe 11, then this enters directly into the lower section 2 ′′ of the gas channel 2, so that in its upper section 2 ′ there is no suction effect through which air could be sucked in via the holding device 6.
  • a threaded sleeve 16 with an external thread is screwed into the gas purging plug 1 at the top.
  • the guide rod 12 is designed as a tube which has a collar 17.
  • the collar 17 is pressed by the threaded sleeve 16 against an annular edge 18 of the gas purging plug 1.
  • the gas line pipe 11 is passed coaxially through the tubular guide rod 12 and screwed into the sleeve 9. Since, in the exemplary embodiment according to FIG. 2, the gas line tube 11 is not guided next to the guide rod 12 but in this, the gas flushing plug 1 is not weakened.
  • the sealing body 6 takes over on the one hand the sealing of the lower section 2 ′′ with respect to the upper section 2 ′ of the gas channel 2 and on the other hand also the tight connection of the gas line pipe 11 to the lower section 2 ′′ of the gas channel 2
  • the counter thread of the end 10 of the gas pipe 11 can be slightly conical.
  • the sealing body 6 has no gas passage opening 8 and no sleeve 9. It is closed.
  • the gas line pipe 11 is then connected separately, bypassing the sealing body 6, directly to the lower section 2 ′′.
  • the gas line pipe 11 acts between the sealing body 6 and the gas purging opening 3 in the lower section 2 ′′ of the gas channel 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP86114859A 1985-12-21 1986-10-25 Gasspülstopfen für ein Schmelzengefäss Withdrawn EP0232470A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3545763 1985-12-21
DE19853545763 DE3545763A1 (de) 1985-12-21 1985-12-21 Gasspuelstopfen fuer ein schmelzengefaess

Publications (1)

Publication Number Publication Date
EP0232470A1 true EP0232470A1 (de) 1987-08-19

Family

ID=6289378

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86114859A Withdrawn EP0232470A1 (de) 1985-12-21 1986-10-25 Gasspülstopfen für ein Schmelzengefäss

Country Status (5)

Country Link
US (1) US4691901A (enrdf_load_stackoverflow)
EP (1) EP0232470A1 (enrdf_load_stackoverflow)
CN (1) CN1006125B (enrdf_load_stackoverflow)
BR (1) BR8606301A (enrdf_load_stackoverflow)
DE (1) DE3545763A1 (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4791978A (en) * 1987-11-25 1988-12-20 Vesuvius Crucible Company Gas permeable stopper rod
US4946083A (en) * 1988-12-29 1990-08-07 Vesuvius Crucible Company One-piece stopper rod
DE4142773A1 (de) * 1991-12-23 1993-06-24 Thyssen Stahl Ag Stopfen fuer metallurgische gefaesse
JPH0941024A (ja) * 1995-05-25 1997-02-10 Japan Casting & Forging Corp 溶融金属へのガス吹込みノズル及びその使用方法
JP2984206B2 (ja) * 1995-09-18 1999-11-29 明智セラミックス株式会社 連続鋳造用タンディッシュストッパー
FR2787045B1 (fr) * 1998-12-10 2001-02-09 Lorraine Laminage Piece refractaire d'injection de gaz dans un circuit de coulee de metal liquide
CN1232372C (zh) * 2001-06-12 2005-12-21 维苏维尤斯·克鲁斯布公司 用于可靠进行气体注入的塞棒
GB0507939D0 (en) * 2005-04-20 2005-05-25 Foseco Int Stopper red
EP2067549B1 (en) * 2007-11-24 2010-03-24 Refractory Intellectual Property GmbH & Co. KG Stopper rod
AT515496B1 (de) * 2014-03-12 2017-05-15 Sheffield Hi-Tech Refractories Germany Gmbh Stopfen in einem Verteilergefäß

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1915133B1 (de) * 1969-03-25 1971-09-30 Noranda Mines Ltd Lanze zum Einleiten von Gasen in geschmolzenes Material bei hohen Temperaturen
WO1982003349A1 (en) * 1981-04-01 1982-10-14 James Menzies Thornton Improved monoblock one-piece pouring stopper
EP0106822A1 (en) * 1982-10-15 1984-04-25 IFM Development AB Nozzle for injection lance
WO1985005506A1 (fr) * 1984-05-23 1985-12-05 Precision Mecanique Labinal Societe Anonyme Perfectionnement aux machines tournantes a aimants au rotor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214804A (en) * 1963-03-18 1965-11-02 Allegheny Ludlum Steel Ladles
US3200457A (en) * 1964-03-09 1965-08-17 United States Steel Corp Method of regulating the discharge of molten metal from ladles
US3565412A (en) * 1968-12-03 1971-02-23 Dresser Ind Device for stirring molten metal
US3964535A (en) * 1975-02-20 1976-06-22 Allied Chemical Corporation Stopper rod tapping assembly and filament forming process
AT340620B (de) * 1975-02-25 1977-12-27 Voest Ag Einrichtung zur behandlung von metallschmelzen wahrend des stranggiessens mit spulgas
DE2713421C3 (de) * 1977-03-26 1979-12-06 Didier-Werke Ag, 6200 Wiesbaden Verwendung von keramischem Fasermaterial und Gasspüllanze für Metallschmelzen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1915133B1 (de) * 1969-03-25 1971-09-30 Noranda Mines Ltd Lanze zum Einleiten von Gasen in geschmolzenes Material bei hohen Temperaturen
WO1982003349A1 (en) * 1981-04-01 1982-10-14 James Menzies Thornton Improved monoblock one-piece pouring stopper
EP0106822A1 (en) * 1982-10-15 1984-04-25 IFM Development AB Nozzle for injection lance
WO1985005506A1 (fr) * 1984-05-23 1985-12-05 Precision Mecanique Labinal Societe Anonyme Perfectionnement aux machines tournantes a aimants au rotor

Also Published As

Publication number Publication date
CN86107878A (zh) 1987-07-01
US4691901A (en) 1987-09-08
BR8606301A (pt) 1987-10-06
DE3545763A1 (de) 1987-06-25
CN1006125B (zh) 1989-12-20
DE3545763C2 (enrdf_load_stackoverflow) 1990-03-08

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19861110

AK Designated contracting states

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Designated state(s): AT BE DE ES FR GB IT LU SE

17Q First examination report despatched

Effective date: 19890418

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18W Application withdrawn

Withdrawal date: 19910523

R18W Application withdrawn (corrected)

Effective date: 19910523

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DOBNER, GERD-ERICH