GB931259A - Annealing of malleable iron - Google Patents

Annealing of malleable iron

Info

Publication number
GB931259A
GB931259A GB1695161A GB1695161A GB931259A GB 931259 A GB931259 A GB 931259A GB 1695161 A GB1695161 A GB 1695161A GB 1695161 A GB1695161 A GB 1695161A GB 931259 A GB931259 A GB 931259A
Authority
GB
United Kingdom
Prior art keywords
ore
annealing
iron
magnetite
mixture
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
GB1695161A
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.)
IAN GRIFFITH SLATER
JACK CHARLES BILLINGTON
Original Assignee
IAN GRIFFITH SLATER
JACK CHARLES BILLINGTON
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 IAN GRIFFITH SLATER, JACK CHARLES BILLINGTON filed Critical IAN GRIFFITH SLATER
Priority to GB1695161A priority Critical patent/GB931259A/en
Publication of GB931259A publication Critical patent/GB931259A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D5/00—Heat treatments of cast-iron
    • C21D5/04—Heat treatments of cast-iron of white cast-iron
    • C21D5/06—Malleabilising
    • C21D5/08—Malleabilising with oxidation of carbon
    • C21D5/10—Malleabilising with oxidation of carbon in gaseous agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

A process for annealing white iron castings comprises packing the castings in a mixture of iron ore and a granular refractory material which is inert to the ore and the casting. The mixture may comprise one part of ore to more than four parts of crushed waste firebrick or crushed chromite, magnetite, chrome-magnetite or high alumina slag, and the heating may be between 1025 DEG and 1100 DEG C. for at least 1 1/2 days. The resulting partially reduced ore may be separated magnetically and the sponge iron used for other purposes.
GB1695161A 1961-05-10 1961-05-10 Annealing of malleable iron Expired GB931259A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1695161A GB931259A (en) 1961-05-10 1961-05-10 Annealing of malleable iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1695161A GB931259A (en) 1961-05-10 1961-05-10 Annealing of malleable iron

Publications (1)

Publication Number Publication Date
GB931259A true GB931259A (en) 1963-07-17

Family

ID=10086599

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1695161A Expired GB931259A (en) 1961-05-10 1961-05-10 Annealing of malleable iron

Country Status (1)

Country Link
GB (1) GB931259A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7344608B2 (en) 2003-12-17 2008-03-18 Rolls-Royce Plc Method and apparatus for heat-treating an article and a fixture for use in the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7344608B2 (en) 2003-12-17 2008-03-18 Rolls-Royce Plc Method and apparatus for heat-treating an article and a fixture for use in the same
US7718015B2 (en) 2003-12-17 2010-05-18 Rolls-Royce Plc Method and apparatus for heat-treating an article and a fixture for use in the same

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