Equipment for the manufacture of spray-deposited, rapidly solidified, thick-walled tubes directly from molten alloy is described. Examples are given of roll sleeves in high carbon, high speed steels. The superior microstructure of the spray-deposited alloy is shown to result in a longer life in service compared to conventionally produced rolls. The manufacture of spray-deposited billets in' a horizontal mode is also described with examples given of high speed steel billets. Again superior properties are evident compared to conventionally produced high speed steel as a consequence of the finer microstructures generated and the absence of macro-segregation. The versatility of the Osprey Process is illustrated by its application to clad billets where combinations of different materials, can be economically produced, offering a unique opportunity for tailor designed products to suit many individual applications. Examples are given of stainless steel/low alloy steel compound bar. The stainless steel is shown to exhibit properties similar to more expensive ESR material.
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