公开(公告)号：US20200255922A1

公开(公告)日：2020-08-13

申请号：US16860301

申请日：2020-04-28

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： Mark T. Kruzynski ,  Gregg E. Kruzynski ,  Vivek M. Sample ,  Achim Hofmann

IPC: C22B21/00 ,  C22B1/248 ,  C22B7/00 ,  C22B21/06 ,  C22B26/12

Abstract: A method including providing a quantity of metal, the quantity of metal being contaminated by a contaminant including a quantity of carbon; configuring a vacuum induction furnace to operate according to a set of operating parameters, the set of operating parameters being selected based on characteristics of the contaminant, the set of operating parameters including at least one of a pressure, an atmosphere composition, a pour temperature, or a hold time; charging the vacuum induction furnace with the quantity of metal; and operating the vacuum induction furnace to melt the quantity of metal in accordance with the set of operating parameters, whereby at least some of the contaminant is removed from the quantity of metal so as to provide an output metal having a concentration of carbon that is less than or equal to a concentration of carbon in the metal as cast.