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Process for producing spheroidized powder from feedstock materials

  • US 10,639,712 B2
  • Filed: 06/19/2019
  • Issued: 05/05/2020
  • Est. Priority Date: 06/19/2018
  • Status: Active Grant
First Claim
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1. A method for manufacturing a spheroidized powder from scrap metal or used metal parts, the method comprising:

  • providing scrap metal or used metal parts comprising a material selected from the group consisting of metal and metal alloys;

    milling the scrap metal or used metal parts to produce metallic particles within a range of particle volumes suitable for use as feedstock in a microwave plasma process; and

    applying the microwave plasma process to the metallic particles within the range of particle volumes to form spheroidized powder;

    wherein the scrap metal or used metal parts comprise a work hardened microstructure that is retained in the spheroidized powder after applying the microwave plasma process.

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