公开(公告)号：US20230366628A1

公开(公告)日：2023-11-16

申请号：US18030644

申请日：2021-09-13

Applicant: SMS group GmbH

Inventor： Frank MASCHLER ,  Jörg ROSTEK ,  Hardy Maaß ,  Andreas ELSING

IPC: F27D9/00 ,  F27D7/02 ,  F27B11/00

CPC classification number: F27D9/00 ,  F27B11/00 ,  F27D7/02 ,  F27D2009/0005 ,  F27D2009/0078

Abstract: A hood-type annealing furnace has a base, which has a site on which a batch of a annealing material can be arranged. The annealing material arranged on the site can be covered by a protective hood, which forms an annealing space enclosed by the protective hood and the site. The protective hood can be covered by a heating hood, thereby forming an intermediate space arranged between the heating hood and the protective hood and bounded at the bottom by the base. A cooling gas system is communicably connected or connectable to the intermediate space. The cooling gas system is communicably connected or connectable to the intermediate space, to a cooling gas outlet formed on the base and communicably connected to the intermediate space, and at least one cooling gas inlet formed on the base and communicably connected to the intermediate space.