CA2097261A1 - Process for treating molten metal during casting operation using a filter and filter for implementing the process - Google Patents

Process for treating molten metal during casting operation using a filter and filter for implementing the process

Info

Publication number
CA2097261A1
CA2097261A1 CA002097261A CA2097261A CA2097261A1 CA 2097261 A1 CA2097261 A1 CA 2097261A1 CA 002097261 A CA002097261 A CA 002097261A CA 2097261 A CA2097261 A CA 2097261A CA 2097261 A1 CA2097261 A1 CA 2097261A1
Authority
CA
Canada
Prior art keywords
filter
implementing
molten metal
during casting
casting operation
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
CA002097261A
Other languages
French (fr)
Other versions
CA2097261C (en
Inventor
Jean-Charles Daussan
Gerard Daussan
Andre Daussan
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.)
Elkem ASA
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
Priority claimed from LU88124A external-priority patent/LU88124A1/en
Priority claimed from FR9213039A external-priority patent/FR2697444B1/en
Application filed by Individual filed Critical Individual
Publication of CA2097261A1 publication Critical patent/CA2097261A1/en
Application granted granted Critical
Publication of CA2097261C publication Critical patent/CA2097261C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
    • B22C9/086—Filters
    • 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
    • B22D1/007—Treatment of the fused masses in the supply runners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/18—Filters characterised by the openings or pores
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/10—Making spheroidal graphite cast-iron

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Filtering Materials (AREA)

Abstract

A filter for molten metal comprises a series of at least two refractory mineral material plates which define between them one or more cavities. The plates each comprise a series of holes through which the liquid metal passes and by which the liquid metal is filtered. At least one of the cavities contains a material for treating the metal, for example a material for inoculating the liquid metal. The filter is used among other things to filter and treat molten metals simultaneously and to improve the quality of the metal.
CA002097261A 1992-05-29 1993-05-28 Process for treating molten metal during casting operation using a filter and filter for implementing the process Expired - Fee Related CA2097261C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
LU88124 1992-05-29
LU88124A LU88124A1 (en) 1992-05-29 1992-05-29 LIQUID METAL FILTER
FR9213039A FR2697444B1 (en) 1992-10-30 1992-10-30 Filter for liquid metal with inoculant.
FR9300062A FR2691654B1 (en) 1992-05-29 1993-01-06 Process for treating molten metal in a casting operation with the interposition of a filter, and filter for implementing this process.
FR9213039 1993-01-06
FR9300062 1993-01-06

Publications (2)

Publication Number Publication Date
CA2097261A1 true CA2097261A1 (en) 1993-11-30
CA2097261C CA2097261C (en) 2001-07-24

Family

ID=27252674

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002097261A Expired - Fee Related CA2097261C (en) 1992-05-29 1993-05-28 Process for treating molten metal during casting operation using a filter and filter for implementing the process

Country Status (5)

Country Link
EP (1) EP0578517B1 (en)
JP (1) JPH06108170A (en)
CA (1) CA2097261C (en)
DE (1) DE69322006T2 (en)
ES (1) ES2126637T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2774611B1 (en) * 1998-02-11 2000-04-28 Daussan & Co DEVICE FOR FILTERING AND TREATING MOLTEN METAL
FR2780322B3 (en) 1998-06-25 2000-05-12 Daussan & Co PROCESS FOR PREPARING A CASTING MOLD
EP1369190A1 (en) 2002-06-03 2003-12-10 Carbon Application Technology Ltd. Filter device for molten metal filtration
GB0613001D0 (en) * 2006-06-30 2006-08-09 Juma Kassim A A filter
DE102018201577B4 (en) * 2017-02-03 2020-02-06 Technische Universität Bergakademie Freiberg Process for producing a molten metal hybrid filter and ceramic molten metal hybrid filter

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3658115A (en) * 1970-11-30 1972-04-25 Gen Motors Corp Method of inoculating nodular cast iron
DE2608282A1 (en) * 1976-02-28 1977-09-08 Baur Eduard Dr Ing Adding inoculants and/or alloying agents to metal before casting - where agents are located in pouring funnel used to fill mould
DE3509113A1 (en) * 1985-03-14 1986-09-18 Stettner & Co, 8560 Lauf DEVICE FOR FILTERING METAL MELT
FR2593077B1 (en) * 1986-01-23 1990-10-19 Desobeau Jacques REFRACTORY MATERIAL FILTER.
JPS62185859A (en) * 1986-02-10 1987-08-14 Kubota Ltd Reaction container for in-mold inoculation
GB8604569D0 (en) * 1986-02-25 1986-04-03 Foseco Int Casting of molten ferrous metal
IT1189162B (en) * 1986-06-11 1988-01-28 Oet Metalconsult Srl PROCESS OF DEGASSING, REFINING OR FILTRATION TREATMENT OF METALS OR ALLOYS IN THE LIQUID STATE AND RELATED DEVICE

Also Published As

Publication number Publication date
CA2097261C (en) 2001-07-24
EP0578517A1 (en) 1994-01-12
DE69322006T2 (en) 1999-06-10
DE69322006D1 (en) 1998-12-17
ES2126637T3 (en) 1999-04-01
EP0578517B1 (en) 1998-11-11
JPH06108170A (en) 1994-04-19

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Legal Events

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EEER Examination request
MKLA Lapsed