公开(公告)号：US20220008991A1

公开(公告)日：2022-01-13

申请号：US17429763

申请日：2020-02-11

Applicant: Desktop Metal, Inc.

Inventor： Nathan Woodard ,  Jonah Samuel Myerberg ,  Emanuel M Sachs ,  Richard Remo Fontana ,  Robert Edward Weiss ,  Yet-Ming Chiang ,  Stephen Dipietro ,  Nicholas Graham Bandiera

IPC: B22F3/00 ,  B22F3/10 ,  B33Y40/20 ,  F27B5/04 ,  F27B5/08 ,  F27D1/00 ,  F27D99/00 ,  F27B5/18

Abstract: A furnace may include an outer wall defining a chamber, the chamber including an internal cavity configured to receive one or more parts, at least one heater positioned within the chamber, the at least one heater being configured to generate temperatures of at least about 800 degrees Celsius within the internal cavity, and a vacuum pump configured to apply a vacuum to at least a portion of the chamber. The furnace may also include at least one layer of inner insulation and at least one layer of outer insulation disposed outward of the inner insulation with respect to the chamber, the at least one layer of outer insulation being sealed with respect to the at least one layer of inner insulation.