FR2047895A1 - Slag-forming comp for electro-slag steel- - refining process - Google Patents

Slag-forming comp for electro-slag steel- - refining process

Info

Publication number
FR2047895A1
FR2047895A1 FR7022166A FR7022166A FR2047895A1 FR 2047895 A1 FR2047895 A1 FR 2047895A1 FR 7022166 A FR7022166 A FR 7022166A FR 7022166 A FR7022166 A FR 7022166A FR 2047895 A1 FR2047895 A1 FR 2047895A1
Authority
FR
France
Prior art keywords
slag
electro
refining process
steel
compn
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
FR7022166A
Other languages
French (fr)
Other versions
FR2047895B1 (en
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Publication of FR2047895A1 publication Critical patent/FR2047895A1/en
Application granted granted Critical
Publication of FR2047895B1 publication Critical patent/FR2047895B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • B23K35/362—Selection of compositions of fluxes
    • 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
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/076—Use of slags or fluxes as treating agents
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/16—Remelting metals
    • C22B9/18—Electroslag remelting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Slag-forming comp. for electro-slag steel-refining process. This material (which is ready for use in contrast to known compns. which have to be mixed in situ) is produced by mixing the starting materials and agglomerating them into granules having a uniform compn., or melting the mixture, comminuting the solidified mass, and only then agglomerating the powder to granules, the basicity degree of the composition is pref. 4-10. Pref. compn. comprises (in % by wt.) CaO 20-40, CaF2 30-50, Al2O3 20-40, and up to 10% of other additives, esp. SiO2. The additives may include alloying elements and/or deoxidising agents.
FR7022166A 1969-06-24 1970-06-16 Slag-forming comp for electro-slag steel- - refining process Granted FR2047895A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691931872 DE1931872B2 (en) 1969-06-24 1969-06-24 PORNED ADDITIVE FOR THE GENERATION OF WORKING SLAG IN THE ELECTRIC SLAG MELTING PROCESS OF STEEL

Publications (2)

Publication Number Publication Date
FR2047895A1 true FR2047895A1 (en) 1971-03-19
FR2047895B1 FR2047895B1 (en) 1974-07-12

Family

ID=5737805

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7022166A Granted FR2047895A1 (en) 1969-06-24 1970-06-16 Slag-forming comp for electro-slag steel- - refining process

Country Status (2)

Country Link
DE (1) DE1931872B2 (en)
FR (1) FR2047895A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1499521A (en) * 1966-10-19 1967-10-27 Allegheny Ludlum Steel Electric melting process in slag
GB1092234A (en) * 1965-03-03 1967-11-22 Tesla Np Method of manufacturing permanent magnets using the electro-slag melting and casting method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1092234A (en) * 1965-03-03 1967-11-22 Tesla Np Method of manufacturing permanent magnets using the electro-slag melting and casting method
FR1499521A (en) * 1966-10-19 1967-10-27 Allegheny Ludlum Steel Electric melting process in slag

Also Published As

Publication number Publication date
FR2047895B1 (en) 1974-07-12
DE1931872A1 (en) 1971-03-11
DE1931872B2 (en) 1971-03-11

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Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
ST Notification of lapse