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GB967922A - Process for the manufacture of iron-silicon-magnesium prealloys - Google Patents

Process for the manufacture of iron-silicon-magnesium prealloys

Info

Publication number
GB967922A
GB967922A GB34682/62A GB3468262A GB967922A GB 967922 A GB967922 A GB 967922A GB 34682/62 A GB34682/62 A GB 34682/62A GB 3468262 A GB3468262 A GB 3468262A GB 967922 A GB967922 A GB 967922A
Authority
GB
United Kingdom
Prior art keywords
magnesium
silicon
melt
iron
manufacture
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
GB34682/62A
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.)
Knapsack AG
Knapsack Griesheim AG
Original Assignee
Knapsack AG
Knapsack Griesheim AG
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 Knapsack AG, Knapsack Griesheim AG filed Critical Knapsack AG
Publication of GB967922A publication Critical patent/GB967922A/en
Expired 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/10—Making spheroidal graphite cast-iron
    • C21C1/105—Nodularising additive agents
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/08—Making cast-iron alloys
    • C22C33/10—Making cast-iron alloys including procedures for adding magnesium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Silicon Compounds (AREA)

Abstract

A process for the manufacture of Fe-Si-Mg alloys, e.g. for use in inoculation of cast iron to get spheroidal graphite, comprises forming a magnesium melt at 650 DEG C., covering the melt with flowers of sulphur or other known slag for magnesium, and adding solid Fe-Si containing at least 70% Si while increasing the temperature of the melt to 1070-1100 DEG C., any further alloying additions, e.g. Cu, Ni, Fe-Si low in Si, Ca, Mn or Lanthanides, being made to the resultant alloy heated to a temperature of 1150-1200 DEG C. Calcium silicon may be added with the Fe-Si in the first stage which is preferably carried out in harmony with, and more preferably up to 50 DEG C. above, the known liquidus curves of the Si-Mg diagram (see the Figure, not shown). The alloy may consist of 10-40% magnesium, 30-60% silicon, 10-25% calcium, 10-30% iron, and copper, nickel and manganese as further optional alloying constituents. The primary melting is preferably carried out in a graphite rod furnace or a mains-frequency induction crucible furnace.
GB34682/62A 1961-09-25 1962-09-11 Process for the manufacture of iron-silicon-magnesium prealloys Expired GB967922A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK44783A DE1190198B (en) 1961-09-25 1961-09-25 Process for the production of silicon-magnesium-iron master alloys

Publications (1)

Publication Number Publication Date
GB967922A true GB967922A (en) 1964-08-26

Family

ID=7223596

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34682/62A Expired GB967922A (en) 1961-09-25 1962-09-11 Process for the manufacture of iron-silicon-magnesium prealloys

Country Status (3)

Country Link
US (1) US3177071A (en)
DE (1) DE1190198B (en)
GB (1) GB967922A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3367771A (en) * 1965-02-23 1968-02-06 Dow Chemical Co Process for preparation of magnesium ferrosilicon alloys
US3375104A (en) * 1965-05-27 1968-03-26 Union Carbide Corp Method of producing magnesium ferrosilicon
US3765876A (en) * 1972-11-01 1973-10-16 W Moore Method of making nodular iron castings
US4147533A (en) * 1977-07-11 1979-04-03 Flinn Richard A Process for the production of ferro-magnesium and the like
FR2421948A1 (en) * 1978-04-06 1979-11-02 Pro Chi Met Produits Chim Meta PROCESS FOR THE PREPARATION OF FERROUS ALLOYS SENSITIVELY FREE OF CERIUM, ALLOWING IN PARTICULAR IMPROVEMENT OF THEIR MECHANICAL PROPERTIES THANKS TO THE USE OF LANTHANE, AND FERROUS ALLOYS OBTAINED BY THIS PROCESS
BR7908986A (en) * 1979-03-09 1981-08-04 R Flinn PROCESS FOR THE PRODUCTION OF A METALLIC COMPOSITION AND APPLIANCE FOR THE SAME
US4214899A (en) * 1979-03-09 1980-07-29 Union Carbide Corporation Method for the addition of a reactive metal to a molten metal bath
DE3924558C1 (en) * 1989-07-25 1990-11-22 Skw Trostberg Ag, 8223 Trostberg, De

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE901960C (en) * 1951-03-08 1954-01-18 Vanadium Corp Of America Magnesium alloys and processes for their manufacture
GB721738A (en) * 1952-12-24 1955-01-12 Metallhutte Mark Ag Improvements in or relating to alloys for addition to cast iron
US2762705A (en) * 1953-01-23 1956-09-11 Int Nickel Co Addition agent and process for producing magnesium-containing cast iron
FR1251093A (en) * 1960-03-14 1961-01-13 Metallgesellschaft Ag Manufacturing process of silicon alloys

Also Published As

Publication number Publication date
DE1190198B (en) 1965-04-01
US3177071A (en) 1965-04-06

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