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AssigneePyrogenesis Canada Inc.
InventorsFrançois PROULX, Christopher Alex DORVAL DION, Pierre CARABIN
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The present application relates to a plasma atomization process and apparatus for producing metallic powders from at least one wire/rod feedstock. In the process, an electric arc is applied to the at least one wire/rod feedstock to melt the same. A plasma torch is employed to generate a supersonic plasma stream at an apex at which the electric arc is transferred to the at least one wire/rod feedstock to atomize the molten wire/rod feedstock into particles. A downstream cooling chamber solidifies the particles into the metallic powders. An anti-satellite diffuser is employed to prevent recirculation of the powders in order to avoid satellite formation. In an apparatus where two wires are fed, one wire serves as an anode, and the other as a cathode.
A plasma atomization process comprising:
An apparatus for producing metallic powders from wire feedstock, comprising a plasma torch and a wire adapted to be fed in the plasma torch, the plasma torch being adapted to atomize the molten wire into particles, wherein an arc is adapted to be formed between the wire, which acts as a cathode, and an electrode.
A plasma atomization process comprising:
An apparatus for producing metallic powders from wire feedstock, comprising a plasma torch and a wire adapted to be fed in the plasma torch, the plasma torch being adapted to atomize the molten wire into particles, wherein an arc is adapted to be formed between the wire, which acts as a cathode, and an electrode.
An apparatus for producing metallic powders from wire feedstock, comprising a plasma torch and at least one wire adapted to be fed in the apparatus, the plasma torch being adapted to atomize the molten wire into particles, and a cooling chamber adapted to solidify the particles into powders, and wherein the wire is adapted to serve as a cathode in the plasma torch.
An apparatus for producing metallic powders from wire feedstock, comprising a plasma torch and at least a pair of wires adapted to be fed in the apparatus, the plasma torch being adapted to atomize the molten wires into particles, wherein one of the wires is adapted to serve as an anode, whereas the other wire is adapted to serve as a cathode.
An apparatus for producing metallic powders from wire feedstock, comprising a plasma torch and a wire adapted to be fed in the plasma torch, the plasma torch being adapted to atomize the molten wire into particles, wherein an arc is adapted to be formed between the wire, which acts as a cathode, and an electrode.
An apparatus for producing metallic powders from wire feedstock, comprising a plasma torch and at least one wire adapted to be fed in the plasma torch, the plasma torch being adapted to atomize the molten wire into particles, wherein the apparatus is adapted to be cooled by a gas thereby heating up the gas, with the so heated gas being adapted to be used as the plasma gas.
A plasma atomization process comprising:
A plasma atomization process comprising:
Dependencies are inferred from the claim text.