GB939541A - Improvements in the production of castings and ingots - Google Patents

Improvements in the production of castings and ingots

Info

Publication number
GB939541A
GB939541A GB1816860A GB1816860A GB939541A GB 939541 A GB939541 A GB 939541A GB 1816860 A GB1816860 A GB 1816860A GB 1816860 A GB1816860 A GB 1816860A GB 939541 A GB939541 A GB 939541A
Authority
GB
United Kingdom
Prior art keywords
sensitive material
composition
greater sensitivity
aluminium
exothermic
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
GB1816860A
Inventor
Roland Dudley Hume
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.)
Foseco International Ltd
Original Assignee
Foseco International Ltd
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 Foseco International Ltd filed Critical Foseco International Ltd
Priority to GB1816860A priority Critical patent/GB939541A/en
Priority to BE604041A priority patent/BE604041A/en
Publication of GB939541A publication Critical patent/GB939541A/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
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B22D7/06—Ingot moulds or their manufacture
    • B22D7/10—Hot tops therefor
    • B22D7/104—Hot tops therefor from exothermic material only

Abstract

A method for the production of ingots and castings comprises locating in the mould or the head-box or riser thereof an exothermic product consisting of a major portion of a composition which is not directly ignitable in contact with the molten metal but which retains its shape when burnt out, in association with a minor proportion of exothermic material having much greater sensitivity to ignition. Both compositions may consist of aluminium, an oxidising agent, fluoride and a filler, the greater sensitivity being obtained by variation of composition or by use of very finely divided aluminium, or the more sensitive material may be a readily oxidisable substance such as magnesium or silicon. The more sensitive material may be present as a layer on a preformed body of the major constituent, or as inserts therein. For example wire, cord or tube, e.g. of woven synthetic fibre may be coated by immersion in a slurry of the more sensitive material, placed in position and the less sensitive material rammed round it. When surface finish of the insert is important the major constituent may be faced with an inert, metal-impermeable material, plugs of sensitive material being located in that surface and extending through to the less sensitive backing. Specifications 627,678, 769,719, 772,273, 774,490, 774,491, 775,380, 785,984 and 805,823 are referred to.
GB1816860A 1960-05-23 1960-05-23 Improvements in the production of castings and ingots Expired GB939541A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1816860A GB939541A (en) 1960-05-23 1960-05-23 Improvements in the production of castings and ingots
BE604041A BE604041A (en) 1960-05-23 1961-05-19 Improvements in the production of castings and ingots and exothermic products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1816860A GB939541A (en) 1960-05-23 1960-05-23 Improvements in the production of castings and ingots

Publications (1)

Publication Number Publication Date
GB939541A true GB939541A (en) 1963-10-16

Family

ID=10107826

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1816860A Expired GB939541A (en) 1960-05-23 1960-05-23 Improvements in the production of castings and ingots

Country Status (2)

Country Link
BE (1) BE604041A (en)
GB (1) GB939541A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4767800A (en) * 1986-05-01 1988-08-30 Foseco International Limited Exothermic compositions
US5632326A (en) * 1993-04-22 1997-05-27 Foseco International Limited Mould and a method for the casting of metals and refractory compositions for use therein
WO1998003284A1 (en) * 1996-07-18 1998-01-29 Kemen Recupac, S.A. Process for fabricating couplings and other elements for hot topping and supply for cast-iron molds, and formulation for producing such couplings and elements

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4767800A (en) * 1986-05-01 1988-08-30 Foseco International Limited Exothermic compositions
US5632326A (en) * 1993-04-22 1997-05-27 Foseco International Limited Mould and a method for the casting of metals and refractory compositions for use therein
WO1998003284A1 (en) * 1996-07-18 1998-01-29 Kemen Recupac, S.A. Process for fabricating couplings and other elements for hot topping and supply for cast-iron molds, and formulation for producing such couplings and elements
ES2134729A1 (en) * 1996-07-18 1999-10-01 Kemen Recupac Sa Procedure for the production of sleeves and other feeder head and supply elements for casting molds, and composition for preparing said sleeves and elements
US6197850B1 (en) 1996-07-18 2001-03-06 Kemen Recupac, S.A. Process for fabricating couplings and other elements for hot topping and supply for castiron molds, and formulation for producing such couplings and elements
EP1273369A2 (en) 1996-07-18 2003-01-08 Kemen Recupac, S.A. Procedure for the production of sleeves and other feeder head and supply elements for casting molds, and composition for preparing said sleeves and elements

Also Published As

Publication number Publication date
BE604041A (en) 1961-09-18

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