GB822533A - Improvements in grain oriented ingots - Google Patents

Improvements in grain oriented ingots

Info

Publication number
GB822533A
GB822533A GB29233/57A GB2923357A GB822533A GB 822533 A GB822533 A GB 822533A GB 29233/57 A GB29233/57 A GB 29233/57A GB 2923357 A GB2923357 A GB 2923357A GB 822533 A GB822533 A GB 822533A
Authority
GB
United Kingdom
Prior art keywords
heat
slab
ingot
mould
melt
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
GB29233/57A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB822533A publication Critical patent/GB822533A/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
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
    • B22D27/045—Directionally solidified castings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)

Abstract

<PICT:0822533/III/1> <PICT:0822533/III/2> Grain-oriented ingots are cast in a mould cavity 18 (Fig. 1) formed in rammed pulverulent moulding material 13, and lined with a compacted mass of pulverulent material 16 which emits heat by an exothermic reaction when contacted with the molten metal, the ingot being formed by removing heat through a base-plate 10 to coolant flowing through a heat-exchanger 11. The material 16 is thicker towards the top to ensure that solidification of the melt progresses from the bottom to the top to obtain an ingot composed of elongated columnar grains. The material 16 may be a mixture of crushed fired clay, powdered aliminium, iron oxide and sodium nitrate. When the ingot is grown on a seed slab 25 (Fig. 4) at the bottom of the mould, the slab 25 is insulated from plate 10 by being supported on spacing elements 26, so that the surface of the seed slab may melt before solidification begins. A limited flow of molten metal passes through a space 28 and fills the insulating space under the slab 25 and solidifies therein, so that heat is then extracted from the melt in the mould by the heat exchanger.
GB29233/57A 1956-09-20 1957-09-17 Improvements in grain oriented ingots Expired GB822533A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US822533XA 1956-09-20 1956-09-20

Publications (1)

Publication Number Publication Date
GB822533A true GB822533A (en) 1959-10-28

Family

ID=22170027

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29233/57A Expired GB822533A (en) 1956-09-20 1957-09-17 Improvements in grain oriented ingots

Country Status (1)

Country Link
GB (1) GB822533A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7204294B2 (en) 2004-03-18 2007-04-17 Rolls-Royce Plc Casting method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7204294B2 (en) 2004-03-18 2007-04-17 Rolls-Royce Plc Casting method

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