摘要：

The specification discloses a method of forming a composite metal strip comprising a backing layer and a layer of two metals which, in liquid form, are immiscible or partially immiscible and having differing densities. The two metals are maintained in molten state in two crucibles each of which has a bottom outlet from which a stream of molten metal issues. The crucible containing the higher density metal is supported within the other crucible so that the stream of higher density metal passes through the lower density metal and issues concentrically with the stream of lower density metal to atomizing gas jets which atomize the streams of metal and direct a spray of the resulting particles onto a backing layer to which the particles adhere.

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