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EP0169290A3 - Device for use in the degassing of molten metal - Google Patents

Device for use in the degassing of molten metal Download PDF

Info

Publication number
EP0169290A3
EP0169290A3 EP84810534A EP84810534A EP0169290A3 EP 0169290 A3 EP0169290 A3 EP 0169290A3 EP 84810534 A EP84810534 A EP 84810534A EP 84810534 A EP84810534 A EP 84810534A EP 0169290 A3 EP0169290 A3 EP 0169290A3
Authority
EP
European Patent Office
Prior art keywords
degassing
molten metal
gas
leakage
nozzle tip
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.)
Granted
Application number
EP84810534A
Other languages
German (de)
Other versions
EP0169290A2 (en
EP0169290B1 (en
Inventor
Robert E. Hershey
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.)
3A Composites International AG
Original Assignee
Schweizerische Aluminium 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 Schweizerische Aluminium AG filed Critical Schweizerische Aluminium AG
Priority to AT84810534T priority Critical patent/ATE51067T1/en
Publication of EP0169290A2 publication Critical patent/EP0169290A2/en
Publication of EP0169290A3 publication Critical patent/EP0169290A3/en
Application granted granted Critical
Publication of EP0169290B1 publication Critical patent/EP0169290B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

A gas injection nozzle design for use in a swirling tank reactor used in the degassing of molten metal with a fluxing gas. The nozzle design eliminates metal leakage from the reactor around the nozzle tip and gas leakage within the fluxing gas delivery line. The nozzle tip is provided with an orifice profile consisting of a straight hole opening of constant diameter or consisting of a converging-diverging profile.
EP84810534A 1983-11-16 1984-11-05 Device for use in the degassing of molten metal Expired - Lifetime EP0169290B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84810534T ATE51067T1 (en) 1983-11-16 1984-11-05 DEVICE FOR USE IN MOLTEN METAL DEGASSING.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/552,340 US4494735A (en) 1983-11-16 1983-11-16 Apparatus for degassing molten metal
US552340 1983-11-16

Publications (3)

Publication Number Publication Date
EP0169290A2 EP0169290A2 (en) 1986-01-29
EP0169290A3 true EP0169290A3 (en) 1987-01-14
EP0169290B1 EP0169290B1 (en) 1990-03-14

Family

ID=24204922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84810534A Expired - Lifetime EP0169290B1 (en) 1983-11-16 1984-11-05 Device for use in the degassing of molten metal

Country Status (11)

Country Link
US (1) US4494735A (en)
EP (1) EP0169290B1 (en)
JP (2) JPS60116731A (en)
AT (1) ATE51067T1 (en)
AU (1) AU567194B2 (en)
CA (1) CA1239791A (en)
DE (1) DE3481640D1 (en)
ES (1) ES8506811A1 (en)
NO (1) NO162866C (en)
NZ (1) NZ210030A (en)
ZA (1) ZA848580B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4647018A (en) * 1986-02-26 1987-03-03 Swiss Aluminium Ltd. Apparatus for degassing molten metal
ZW12087A1 (en) * 1986-07-05 1987-10-28 Injectall Ltd Improvements in nozzles for injecting substances into liquids
US4767598A (en) * 1986-09-22 1988-08-30 Aluminum Company Of America Injection apparatus for introduction of a fluid material into a molten metal bath and associated method
US4744545A (en) * 1987-02-03 1988-05-17 Swiss Aluminium Ltd. Apparatus for degassing molten metal
DE4025956A1 (en) * 1990-08-16 1992-02-20 Didier Werke Ag FIREPROOF FILLING OF A RING GAP IN A METALLURGICAL TANK
DE4213007C1 (en) * 1992-04-21 1993-12-16 Tech Resources Pty Ltd Method and device for sealing nozzles in the surrounding refractory lining
US5794858A (en) * 1996-05-29 1998-08-18 Ingersoll-Rand Company Quick assembly waterjet nozzle
US20020164913A1 (en) * 2001-05-04 2002-11-07 Pieters Gerogeann Composite material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE336995C (en) * 1921-05-20 Herbert Bondy Arrangement of nozzles for furnaces
US3695603A (en) * 1970-09-22 1972-10-03 Kennecott Copper Corp Replaceable insert for tuyere pipes of metal-refining furnaces
FR2498946A1 (en) * 1980-11-10 1982-08-06 Europ Propulsion Cooled injector for feeding corrosive substance into boiler - esp. where sulphur hexa:fluoride is injected into reactor contg. lithium at high temp.
EP0070799A2 (en) * 1981-07-22 1983-01-26 Schweizerische Aluminium Ag Gas spray-nozzle for a swirling tank reactor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4177066A (en) * 1978-06-12 1979-12-04 Swiss Aluminium Ltd. Method and apparatus for the removal of impurities from molten metal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE336995C (en) * 1921-05-20 Herbert Bondy Arrangement of nozzles for furnaces
US3695603A (en) * 1970-09-22 1972-10-03 Kennecott Copper Corp Replaceable insert for tuyere pipes of metal-refining furnaces
FR2498946A1 (en) * 1980-11-10 1982-08-06 Europ Propulsion Cooled injector for feeding corrosive substance into boiler - esp. where sulphur hexa:fluoride is injected into reactor contg. lithium at high temp.
EP0070799A2 (en) * 1981-07-22 1983-01-26 Schweizerische Aluminium Ag Gas spray-nozzle for a swirling tank reactor

Also Published As

Publication number Publication date
NZ210030A (en) 1987-03-31
CA1239791A (en) 1988-08-02
EP0169290A2 (en) 1986-01-29
ATE51067T1 (en) 1990-03-15
ES537232A0 (en) 1985-08-16
ZA848580B (en) 1985-06-26
DE3481640D1 (en) 1990-04-19
AU567194B2 (en) 1987-11-12
NO844534L (en) 1985-05-20
EP0169290B1 (en) 1990-03-14
JPS60116731A (en) 1985-06-24
NO162866C (en) 1990-02-28
JPH0229733B2 (en) 1990-07-02
AU3470684A (en) 1985-05-23
ES8506811A1 (en) 1985-08-16
NO162866B (en) 1989-11-20
US4494735A (en) 1985-01-22
JPH0363493A (en) 1991-03-19

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