公开(公告)号：US11268166B2

公开(公告)日：2022-03-08

申请号：US16608470

申请日：2019-01-24

Applicant: Foroni S.p.A.

Inventor： Andrea Foroni ,  Luca Foroni

IPC: B22D1/00 ,  B22D7/00 ,  C21D9/70 ,  C22B9/20 ,  C22B9/04 ,  C22B9/05 ,  C22C1/02 ,  C22C1/10 ,  C22C33/04

Abstract: A method of producing a metal superalloy may include: providing a charge of metal materials; melting the charge of metal materials in an electric-arc furnace to obtain a first melt of the charge of metal materials; performing Argon Oxygen Decarburization (A.O.D.) treatment on the first melt to obtain a decarburized and refined first melt; solidifying the decarburized and refined first melt to obtain first ingots; melting the first ingots in a Vacuum Induction Degassing and Pouring (V.I.D.P.) furnace to obtain a second melt; solidifying the second melt to obtain second ingots; melting the second ingots in a Vacuum Arc Remelting (V.A.R.) furnace to obtain a third melt; and solidifying the third melt to obtain the metal superalloy. The charge of metal materials may have a weight greater than or equal to forty tons and less than or equal to sixty tons.