EP 3844320 A1 20210707 - COMPONENT OF A BRAKE FOR A VEHICLE
Title (en)
COMPONENT OF A BRAKE FOR A VEHICLE
Title (de)
BAUTEIL EINER BREMSE FÜR EIN FAHRZEUG
Title (fr)
ÉLÉMENT STRUCTURAL D'UN FREIN CONÇU POUR UN VÉHICULE
Publication
Application
Priority
- DE 102018120897 A 20180827
- EP 2019072817 W 20190827
Abstract (en)
[origin: WO2020043712A1] The invention relates to a component of a brake for a vehicle, comprising a metal main body having a surface (5a, 5b) that is provided with a coating (B) for increasing the wear resistance thereof, said coating comprising an intermediate layer (Z) deposited on the main body (2), and a cover layer (D) deposited on the intermediate layer (Z), wherein the intermediate layer (Z) has a higher toughness than the cover layer (D), which in turn has a higher hardness than the intermediate layer (Z). The aim of the invention is to simplify the production of such a component and to optimize the wear resistance thereof. This aim is achieved, according to the invention, in that the intermediate layer (Z) is formed of an Ni or Cr alloy each having an Ni or Cr content of more than 50 wt%, and optionally, in order to improve the wear resistance, having hard material particles embedded in the intermediate layer, and in that the cover layer (D) is formed from a high-grade steel matrix having hard material particles embedded therein, wherein the thermal conductivity of the main body (2) is 1.5 to 3 times greater than the thermal conductivity of the intermediate layer (Z), the thermal conductivity of the cover layer (D) is 2 to 4.5 times greater than the thermal conductivity of the main body (2), and the thickness ratio Vd - Dd/Dz formed from the thickness Dz of the intermediate layer (Z) and the thickness Dd of the cover layer (D) is Vd ≥ 1.5.
IPC 8 full level
C23C 28/02 (2006.01); C23C 24/10 (2006.01); F16D 65/12 (2006.01)
CPC (source: EP)
C23C 24/10 (2013.01); C23C 24/103 (2013.01); C23C 28/021 (2013.01); C23C 28/027 (2013.01); C23C 30/00 (2013.01); F16D 65/127 (2013.01); F16D 69/027 (2013.01); B23K 26/342 (2015.10); F16D 2200/0026 (2013.01); F16D 2200/0047 (2013.01)
Citation (examination)
DE 102008053637 A1 20100512 - DAIMLER AG [DE]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102018120897 A1 20200227; EP 3844320 A1 20210707; WO 2020043712 A1 20200305
DOCDB simple family (application)
DE 102018120897 A 20180827; EP 19762735 A 20190827; EP 2019072817 W 20190827