B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
22/178, 13/22, 1
B23K 20/00 (2006.01) B22D 19/08 (2006.01) B22D 19/16 (2006.01)
Patent
CA 1227910
ABSTRACT A method of forming a composite article having a first and a second metal component, and a resultant composite metal article, wherein a flux coating is applied over at least a substantially oxide-free bond surface of the first component, the first component with said flux coating is preheated and, with said first component positioned in a mould to fill a portion of a cavity of the mould, a melt for providing the second component is poured into the mould so as to flow over said bond surface; the first component being preheated to a first temperature and the melt being poured at a second temperature such that, on flowing over the bond surface, the melt displaces said flux coating and wets said bond surface, and that such initial temperature equilibration between said surface and the melt results in an interface temperature there between at least equal to the liquidus temperature of the melt, thereby resulting on solidification of the melt in attainment of a bond between the components.
458048
Arnold Brian K.
Aspin Ronald E.
Bosworth Michael R.
Heijkoop Teunis
Henderson Ian D.
Commonwealth Scientific And Industrial Research Organization
Sim & Mcburney
Vida-Weld Pty. Limited
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