GB1250298A - - Google Patents

Info

Publication number
GB1250298A
GB1250298A GB1250298DA GB1250298A GB 1250298 A GB1250298 A GB 1250298A GB 1250298D A GB1250298D A GB 1250298DA GB 1250298 A GB1250298 A GB 1250298A
Authority
GB
United Kingdom
Prior art keywords
bismuth
ingots
teeming
ceased
moulds
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
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 filed Critical
Publication of GB1250298A publication Critical patent/GB1250298A/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
    • B22D27/06—Heating the top discard of ingots

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

1,250,298. Casting processes. FOSECO INTERNATIONAL Ltd. 28 Jan., 1971 [15 Sept., 1970], No. 43950/70. Heading B3F. A method of treating ingots of killed steel comprises introducing bismuth into the molten steel after teeming has ceased. The bismuth can be introduced as Bi-impregnated sponge iron. Immediately after the bismuth addition, the ingot is capped, e.g. by placing a cast iron plate on its upper surface. The capping plate can be further cooled by spraying with cold water. In the example, 208 gm. blocks of Bi were added to moulds for 5 ton ingots.
GB1250298D 1970-09-15 1970-09-15 Expired GB1250298A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4395070 1970-09-15

Publications (1)

Publication Number Publication Date
GB1250298A true GB1250298A (en) 1971-10-20

Family

ID=10431083

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1250298D Expired GB1250298A (en) 1970-09-15 1970-09-15

Country Status (1)

Country Link
GB (1) GB1250298A (en)

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Legal Events

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