Bremsscheibe für Scheibenbremsen und Verfahren zur Herstellung einer Bremsscheibe für Scheibenbremsen

Details

Veröffentlichungs-Nr.

EP4764248

Anmeldetag

17. Dezember 2025

Veröffentlichung

24. Juni 2026

Rechtsraum

EP

Abstract

The invention relates to a disc (1) for disc brakes, comprising a braking band (2), equipped with two opposing braking surfaces (2a, 2b), the braking band (2) being made of gray cast iron or steel. Said disk comprises: - a base layer (30) covering at least one of the two braking surfaces (2a, 2b) of the braking band (2), and - a bonding layer (3) which is interposed between said base layer (30) and the braking surface (2a, 2b). Said base layer (30) consists of a matrix of titanium and/or a titanium alloy comprising one or more carbides and defines a tribologically active surface of the disk (1); or said base layer (30) consists of a layer of titanium and/or a titanium alloy and is in turn covered by a coating layer (300), which in turn consists of a layer based on one or more carbides and defines a tribologically active surface of the disk (1). Said one or more carbides are selected from the group consisting of titanium carbide (TiC), tungsten carbide (WC), chromium carbide, niobium carbide (NbC), molybdenum carbide (Mo2C), and silicon carbide (SiC). Said bond layer (3) consists of a layer of titanium, or of a titanium or steel alloy. At the interface between said bond layer (3) and the braking band (2) in gray cast iron or steel there is a first intermediate interfusion layer (32) having a mixed composition between said bond layer (3) and the braking band (2). At the interface between said base layer (30) and said bond layer (3) there is a second intermediate interfusion layer (33) having a mixed composition between said base layer (30) and said bond layer (3). Said base layer (30) and said bond layer (3) both have a crystalline structure with a growth direction predominantly orthogonal to the braking surface.

Anmelder

Firma

BREMBO N.V.

Land

🇮🇹 Italien