公开(公告)号：US20240399619A1

公开(公告)日：2024-12-05

申请号：US18679830

申请日：2024-05-31

Applicant: ABB Schweiz AG

Inventor： Christoph Kenel ,  Markus Hoidis ,  Thierry Delachaux

IPC: B28B1/00 ,  B28B11/00 ,  C22C1/10 ,  C22C29/00 ,  C22C29/08

Abstract: A method for forming a contact piece for a circuit breaker, the contact piece comprising a reinforcement phase and a conductive phase, the method comprising: providing a slurry of the reinforcement phase in liquid; freeze casting the slurry, to form a cast comprising a frozen liquid structure and a reinforcement phase structure; removing the frozen liquid structure from the cast, to form a foam comprising the reinforcement phase structure; sintering the foam, to form a sintered foam; and infiltrating the sintered foam with the conductive phase, to form a piece part.

公开(公告)号：US20250018489A1

公开(公告)日：2025-01-16

申请号：US18899793

申请日：2024-09-27

Applicant: ABB Schweiz AG

Inventor： Christoph Kenel ,  Markus Hoidis

IPC: B23K1/19 ,  B23K103/00 ,  B23K103/12

Abstract: A brazing method for providing a brazed joint. The method comprises directly brazing an AgC contact to a Cu carrier using an active braze.