公开(公告)号：US20220404026A1

公开(公告)日：2022-12-22

申请号：US17776825

申请日：2020-09-29

Applicant: ELECTROLUX APPLIANCES AKTIEBOLAG

Inventor： Marco BÖCKLER ,  Klaus WÄLZLEIN ,  Gerede AYNUR ,  Paolo CESCOT ,  Andrea BRATTI ,  Georg PAULI ,  Christophe LUCKHARDT

IPC: F24C15/00

Abstract: The present invention relates to fan cover (6), in particular a fan cover (6) for a cooking appliance (1), obtainable by a process characterised by the following steps, a) providing a fan cover (6) having an inner surface (7a), an outer surface (7b) and at least one opening (8) allowing a fluid to flow through, b) pretreating of at least the inner surface (7a) of the fan cover (6) for providing a surface having a roughness being suitable for applying a non-stick and/or non-wetting coating (12) by mechanical treatment, physical treatment or chemical treatment, in particular by sandblasting and/or laser treatment and/or an enamelling process to form a ground layer (13), c) applying the non-stick and/or non-wetting coating (12) to the inner surface (7a) of the fan cover (6) or the surface (14a) of the ground layer (13), wherein the non-stick and/or non-wetting coating (12) comprises at least one layer (17) that is obtained by a sol-gel process from a first composition comprising a silica sol and a silane. The invention further relates to a cooking appliance (1), in particular a domestic oven comprising such a fan cover (6) and a method for manufacturing such a fan cover (6).