GB1212391A - Process of reforming molten metal in a casting process - Google Patents

Process of reforming molten metal in a casting process

Info

Publication number
GB1212391A
GB1212391A GB222568A GB222568A GB1212391A GB 1212391 A GB1212391 A GB 1212391A GB 222568 A GB222568 A GB 222568A GB 222568 A GB222568 A GB 222568A GB 1212391 A GB1212391 A GB 1212391A
Authority
GB
United Kingdom
Prior art keywords
molten metal
metal
mixture
carbon
hydrocarbon
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
GB222568A
Inventor
Kokichi Otani
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.)
Individual
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
Application filed by Individual filed Critical Individual
Publication of GB1212391A publication Critical patent/GB1212391A/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
    • 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
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/20—Measures not previously mentioned for influencing the grain structure or texture; Selection of compositions therefor
    • 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
    • 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
    • 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
    • C21C7/06—Deoxidising, e.g. killing
    • 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

Landscapes

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

Abstract

1,212,391. Casting processes. K. OTANI. 15 Jan., 1968 [19 Jan., 1967; 27 Jan., 1967; 10 Feb., 1967], No. 2225/68. Heading B3F. [Also in Division C7] In a metal casting process, a mixture of amorphous carbon or organic carbon compound, and hydrocarbon is placed in direct contact with the molten metal at some stage during the process to produce a reducing atmosphere of carbon monoxide and hydrogen gases. The mixture may contact the molten metal in a shoot leading from a furnace to a ladle, in the ladle itself, or in the mould, by placing the mixture in the shoot, ladle or mould prior to pouring or by sprinkling the mixture on the surface of the molten metal. The hydrocarbon material is preferably a petroleum material, such as kerosene, and can be applied in a liquid, grease or wax form. The carbon or carbonaceous material may be breeze, graphite, charcoal, or organic materials such as straw, chaff, pasteboard, dry fiber, saw dust, cardboard, millboard or straw and wood ash. The hydrocarbon material may be impregnated in the carbonaceous material or the carbonaceous material may be encapsulated in metal tubes separate from the hydrocarbon material, The burning of the hydrocarbon material with the carbon or carbonaceous material produces a reducing atmosphere to prevent oxide films forming on the molten metal, provides heat to keep the molten metal fluid for a longer period, and enables the evolving gases to deoxidize the melt. The process is applied to producing pig iron, killed steel, rimmed steel, pure copper, and copper-titanium ingots, and white-metal castings. The metals produced are (a) a steel including 0À17% C, 0À35% Si, 0À98% Mn and 0À018% P; (b) a steel including 0À17% C, 0À22% Si, 0À45% Mn, 0À09% Cu, 0À022% Sn, 0À024% P and 0À019% S; (c) 0À55% C, 0À25% Si, 0À64% Mn, 0À08% Cu, 0À023% P, 0À018% S; (d) 0À16% C, 0À23% Si, 1À30% Mn, 0À022% P, 0À016% S; (e) a rimmed steel including 0À15- 0À17% C, 0À41-0À44% Mn, 0À018-0À021% P and 0À020-0À028% S; (f) a cast iron including, 3À74% C, 1À66% Si, 0À44% Mn, 0À09% P and 0À062% S; and (g) a white metal comprising 74% Pb, 14% Sb, and 12% Sn.
GB222568A 1967-01-19 1968-01-15 Process of reforming molten metal in a casting process Expired GB1212391A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP333167 1967-01-19
JP501067 1967-01-27
JP815667 1967-02-10
JP2337467 1967-04-14
JP2485567 1967-04-20
JP3859967 1967-05-24

Publications (1)

Publication Number Publication Date
GB1212391A true GB1212391A (en) 1970-11-18

Family

ID=27547763

Family Applications (1)

Application Number Title Priority Date Filing Date
GB222568A Expired GB1212391A (en) 1967-01-19 1968-01-15 Process of reforming molten metal in a casting process

Country Status (6)

Country Link
BE (1) BE709558A (en)
BG (1) BG17473A3 (en)
FR (1) FR1594547A (en)
GB (1) GB1212391A (en)
NO (1) NO129614B (en)
SE (1) SE340507B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2407563A1 (en) * 2010-07-13 2012-01-18 Denain Anzin Métallurgie D.A.MET Covering powder for liquid steel and method for manufacturing same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2407563A1 (en) * 2010-07-13 2012-01-18 Denain Anzin Métallurgie D.A.MET Covering powder for liquid steel and method for manufacturing same

Also Published As

Publication number Publication date
NO129614B (en) 1974-05-06
BE709558A (en) 1968-07-18
FR1594547A (en) 1970-06-08
SE340507B (en) 1971-11-22
BG17473A3 (en) 1973-11-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee