GB857304A - Treatment of molten metals and alloys - Google Patents

Treatment of molten metals and alloys

Info

Publication number
GB857304A
GB857304A GB2485258A GB2485258A GB857304A GB 857304 A GB857304 A GB 857304A GB 2485258 A GB2485258 A GB 2485258A GB 2485258 A GB2485258 A GB 2485258A GB 857304 A GB857304 A GB 857304A
Authority
GB
United Kingdom
Prior art keywords
sinker
molten metal
consist
block
alloys
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
GB2485258A
Inventor
Alfred Tresham Andrew
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.)
Foundry Services International Ltd
Original Assignee
Foundry Services International Ltd
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 Foundry Services International Ltd filed Critical Foundry Services International Ltd
Priority to GB2485258A priority Critical patent/GB857304A/en
Publication of GB857304A publication Critical patent/GB857304A/en
Expired 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
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/002—Castings of light metals
    • B22D21/007—Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
    • 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
    • C22B9/04—Refining by applying a vacuum
    • 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
    • C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
    • C22B9/103—Methods of introduction of solid or liquid refining or fluxing agents

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

Modifying or conditioning additives for molten light metals and alloys are formed into blocks which either remain coherent in the molten metal or consist wholly of material which is converted to gas in the molten metal, each block having an aperture through which is securely fastened a sinker of high specific gravity such that the specific gravity of the sinker and additive is greater than that of the molten metal. The sinker may consist of a bolt with a locking nut, or may consist of a curved bar, with or without a stop at one end, the curvature being such that the sinker is retained in place by the pressure of the molten metal. The sinker may be made of cast iron, alloy iron or steel coated with refractory, refractory enamel or graphite, or may be made of tungsten carbide or bonded zircon sand. The block preferably contains, in addition to the active ingredient, a substance which will sinter at the temperature of the molten metal to prevent the block from breaking up. Substances mentioned are common salt, fluorspar, magnesia, or crushed firebrick, optionally with a binding agent, e.g. a silicate. Specification 827,619 is referred to.
GB2485258A 1958-08-01 1958-08-01 Treatment of molten metals and alloys Expired GB857304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2485258A GB857304A (en) 1958-08-01 1958-08-01 Treatment of molten metals and alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2485258A GB857304A (en) 1958-08-01 1958-08-01 Treatment of molten metals and alloys

Publications (1)

Publication Number Publication Date
GB857304A true GB857304A (en) 1960-12-29

Family

ID=10218265

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2485258A Expired GB857304A (en) 1958-08-01 1958-08-01 Treatment of molten metals and alloys

Country Status (1)

Country Link
GB (1) GB857304A (en)

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