DE3374279D1 - Process and apparatus for minimizing foam formation during free falling of molten metal into moulds, launders or other containers - Google Patents

Process and apparatus for minimizing foam formation during free falling of molten metal into moulds, launders or other containers

Info

Publication number
DE3374279D1
DE3374279D1 DE8383113078T DE3374279T DE3374279D1 DE 3374279 D1 DE3374279 D1 DE 3374279D1 DE 8383113078 T DE8383113078 T DE 8383113078T DE 3374279 T DE3374279 T DE 3374279T DE 3374279 D1 DE3374279 D1 DE 3374279D1
Authority
DE
Germany
Prior art keywords
moulds
molten metal
foam formation
launders
containers
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
DE8383113078T
Other languages
German (de)
Inventor
Edouard Gervais
Henri Levert
Laurence C Smyth
George Deep
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.)
Noranda Inc
Original Assignee
Noranda Inc
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 Noranda Inc filed Critical Noranda Inc
Application granted granted Critical
Publication of DE3374279D1 publication Critical patent/DE3374279D1/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
    • B22D5/00—Machines or plants for pig or like casting
    • B22D5/04—Machines or plants for pig or like casting with endless casting conveyors
    • 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
    • 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
    • B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
    • B22D21/027—Casting heavy metals with low melting point, i.e. less than 1000 degrees C, e.g. Zn 419 degrees C, Pb 327 degrees C, Sn 232 degrees C
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/003—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using inert gases

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Silicon Compounds (AREA)

Abstract

Foam formation on the surface of molten metal falling freely into moulds is avoided, by keeping it under a non-oxidising, inert gas atmosphere, e.g. nitrogen. This prevents the entrainment of oxygen, and the formation of bubbles with a tenacious oxide film. Preferably it is done on a continuous casting machine, with a train of closely spaced open top moulds on an endless conveyor. They pass under a cover plate, with a hole for casting molten metal in each mould, as it passes beneath before and beyond this opening, ports in the plate feed nitrogen into the moulds as they approach and pass.
DE8383113078T 1983-12-23 1983-12-23 Process and apparatus for minimizing foam formation during free falling of molten metal into moulds, launders or other containers Expired DE3374279D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19830113078 EP0150226B1 (en) 1983-12-23 1983-12-23 Process and apparatus for minimizing foam formation during free falling of molten metal into moulds, launders or other containers

Publications (1)

Publication Number Publication Date
DE3374279D1 true DE3374279D1 (en) 1987-12-10

Family

ID=8190905

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383113078T Expired DE3374279D1 (en) 1983-12-23 1983-12-23 Process and apparatus for minimizing foam formation during free falling of molten metal into moulds, launders or other containers

Country Status (4)

Country Link
EP (1) EP0150226B1 (en)
JP (1) JPS60145262A (en)
AU (1) AU560253B2 (en)
DE (1) DE3374279D1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2781395B1 (en) * 1998-07-27 2000-10-06 Brochot Sa DEVICE FOR CASTING INGOTS OF NON-FERROUS LIQUID METAL, IN PARTICULAR LIQUID MAGNESIUM, ACCORDING TO LARGE PRODUCTION RATES WITHOUT REDUCING QUALITY
FR2809643B1 (en) * 2000-05-31 2002-10-25 Brochot Sa METHOD AND DEVICE FOR PROTECTING NON-FERROUS MOLTEN METAL
KR101159949B1 (en) 2010-02-26 2012-06-25 현대제철 주식회사 Mold for pig casting machine
CN113492208A (en) * 2020-04-01 2021-10-12 青海北辰科技有限公司 Novel magnesium ingot casting gas protection device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2099208A (en) * 1936-03-02 1937-11-16 William H D Horsfall Apparatus for preventing the oxidation of metals
FR2523005A1 (en) * 1982-03-08 1983-09-16 Air Liquide PROCESS AND INSTALLATION FOR CASTING A NON-FERROUS LINGOTIERE METAL

Also Published As

Publication number Publication date
JPH0431781B2 (en) 1992-05-27
AU2259283A (en) 1985-06-27
EP0150226B1 (en) 1987-11-04
AU560253B2 (en) 1987-04-02
EP0150226A1 (en) 1985-08-07
JPS60145262A (en) 1985-07-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee