METHODS AND APPARATUSES FOR PRODUCING METALLIC POWDER MATERIAL
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United States of America Patent
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Nov 17, 2016
app pub date -
May 14, 2015
filing date -
May 14, 2015
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Abstract
A method of producing a metallic powder material comprises supplying feed materials to a melting hearth, and melting the feed materials on the melting hearth with a first heat source to provide a molten material having a desired chemical composition. At least a portion of the molten material is passed from the melting hearth either directly or indirectly to an atomizing hearth, where it is heated using a second heat source. At least a portion of the molten material from the atomizing hearth is passed in a molten state to an atomizing apparatus, which forms a droplet spray from the molten material. At least a portion of the droplet spray is solidified to provide a metallic powder material.
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