C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
44/3
C09K 5/00 (2006.01) B23K 23/00 (2006.01) B23K 35/34 (2006.01)
Patent
CA 1123196
ABSTRACT OF THE DISCLOSURE The invention provides a composition for use in the filling of a hole in an ingot mould base or other ferrous metal body which comprises (1) a mixture reactable on ignition to yield a molten slag containing a first metal in an oxidised state and a second metal in the fused metallic state by reaction of the first metal provided in particulate metallic form with the second metal provided in the form of a compound reactable exothermically with the first metal and (2) a refractory material, conveniently crushed firebrick present in an amount such as to be bound together by the slag when the slag has solidified by cooling, said refractory material being in particulate form. By having the refractory material present, at least in part, in the form of particles of size less than one-eighth inch whilst being substantially free from particles of size less than 400 microns (and preferably less than 600 microns) an improved working surface is obtained and the ignition properties of the composition are improved. - 1 -
328436
Swabey Ogilvy Renault
Thomas William O.
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