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DE29617774U1 - Brake disc - Google Patents

Brake disc

Info

Publication number
DE29617774U1
DE29617774U1 DE29617774U DE29617774U DE29617774U1 DE 29617774 U1 DE29617774 U1 DE 29617774U1 DE 29617774 U DE29617774 U DE 29617774U DE 29617774 U DE29617774 U DE 29617774U DE 29617774 U1 DE29617774 U1 DE 29617774U1
Authority
DE
Germany
Prior art keywords
brake disc
brake
coating
disc
friction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE29617774U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Priority to DE29617774U priority Critical patent/DE29617774U1/en
Publication of DE29617774U1 publication Critical patent/DE29617774U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
    • F16D63/004—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00 comprising a rotor engaged both axially and radially by braking members, e.g. combined drum and disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F16D65/127—Discs; Drums for disc brakes characterised by properties of the disc surface; Discs lined with friction material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F16D65/128—Discs; Drums for disc brakes characterised by means for cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • F16D66/02—Apparatus for indicating wear

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Description

ANIl . ..ANIL . ..

BremsscheibeBrake disc

Die Erfindung bezieht sich auf eine Bremsscheibe nach dem Oberbegriff des Anspruchs 1.The invention relates to a brake disc according to the preamble of claim 1.

Aus der DE 34 06 450 Al ist eine Bremsscheibe bekannt, die eine Beschichtung aus einem keramischen Werkstoff aufweist, um eine Geräuschdämpfung zu erzielen sowie eine Korrosions- und Hochtemperaturwiderstand zu bilden. Derartige keramische &iacgr;&ogr; Werkstoffe vermindern die Wärmeleitfähigkeit der Bremsscheibe unnötig.DE 34 06 450 A1 discloses a brake disc that has a coating made of a ceramic material in order to achieve noise dampening and to provide corrosion and high temperature resistance. Such ceramic materials unnecessarily reduce the thermal conductivity of the brake disc.

Der Erfindung liegt die Aufgabe zugrunde, diese Nachteile zu vermeiden und eine Bremsscheibe mit einer Beschichtung der Reibflächen zu schaffen, die ein unverändertes Reibwertverhalten bewirkt sowie die Lebensdauer der Bremsscheibe nicht beeinträchtigt.The invention is based on the object of avoiding these disadvantages and of creating a brake disc with a coating of the friction surfaces which ensures an unchanged friction coefficient behavior and does not impair the service life of the brake disc.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Weitere vorteilhafte Merkmale beinhalten die Unteransprüche.This object is achieved according to the invention by the characterizing features of claim 1. Further advantageous features are contained in the subclaims.

Die mit der Erfindung hauptsächlich erzielten Vorteile bestehen darin, daß eine metallische Beschichtung aus einer Chromcarbid-Schicht besteht, welche auf den Reibflächen der Bremsscheibe einen optimalen Korrosionsschutz bilden, D.h. bei einem Nichtgebrauch des Fahrzeugs weisen die Reibflächen keine Rostschicht mehr auf, da die Chromcarbid-Schicht diese verhindert. Desweiteren wird über die Beschichtung keine ungünstige Beeinflussung des Reibwertverhaltens der Bremsscheibe sowie des Rißverhaltens bewirkt. Auch bei einer Hochbeiastung der Bremsscheibe treten keine Ablösungen der Beschichtung auf.The main advantages achieved with the invention are that a metallic coating consists of a chromium carbide layer, which forms optimal corrosion protection on the friction surfaces of the brake disc. This means that when the vehicle is not in use, the friction surfaces no longer have a layer of rust, as the chromium carbide layer prevents this. Furthermore, the coating does not have an adverse effect on the friction coefficient behavior of the brake disc or on the cracking behavior. Even when the brake disc is subjected to high loads, the coating does not come off.

Die Beschichtung wird thermisch über ein Flammspritzverfahren oder ein so Hochgeschwindigkeitsspritzverfahren durchgeführt. Die Schichtdicke ist vorzugsweise von 0,3 bis 1 mm möglich.The coating is applied thermally using a flame spraying process or a high-velocity spraying process. The layer thickness is preferably between 0.3 and 1 mm.

Die Beschichtung ist bei Bremsscheibe!!, bestehend aus einem Werkstoff, wie Grauguß oder Karbon oder Leichtmetallegierung in einfacher Weise möglich.The coating can be easily applied to brake discs made of a material such as gray cast iron or carbon or light metal alloy.

Wird die Schichtstärke entsprechend der Lebensdauer gewählt, so übernimmt die Oberfiächenbeschichtung gleichzeitig die Funktion einer optischen Verschleißanzeige, d.h. bei beginnender Rostbildung muß die Bremsscheibe erneuert werden.If the layer thickness is selected according to the service life, the surface coating also takes on the function of an optical wear indicator, i.e. if rust begins to form, the brake disc must be replaced.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt, weiche einen Schnitt durch eine innenbelüftete Bremsscheibe zeigt.An embodiment of the invention is shown in the drawing, which shows a section through an internally ventilated brake disc.

Eine innenbelüftete Bremsscheibe 1 ist auf den Außenflächen 2, 3 seiner Reibscheiben 4, 5 mit einer Beschichtung 6, 6a aus Chromkarbid versehen, die thermisch aufgebracht werden, z.B. durch ein Flammspritzverfahren oder durch ein Hochgeschwindigkeitsspritzverfahren.An internally ventilated brake disc 1 is provided on the outer surfaces 2, 3 of its friction discs 4, 5 with a coating 6, 6a made of chromium carbide, which is applied thermally, e.g. by a flame spraying process or by a high-velocity spraying process.

Die Schichtdicke der Beschichtung kann bis zu 1 mm betragen, wobei eine ßeschichtungsdicke von 5/10 sich als vorteilig herausgestellt hat.The coating layer thickness can be up to 1 mm, whereby a coating thickness of 5/10 has proven to be advantageous.

Eine weitere Beschichtung 6b kann auch im Bremsentopf 7 für die Bremsbacken einer Handbremse vorgesehen werden.A further coating 6b can also be provided in the brake pot 7 for the brake shoes of a handbrake.

Die Beschichtung kann auf Bremsscheiben aus Grauguß, aus einer Leichtmetallegierung oder aus einem Karbonwerkstoff aufgebracht werden.The coating can be applied to brake discs made of grey cast iron, a light metal alloy or a carbon material.

Claims (3)

SchutzansprücheProtection claims 1. Bremsscheibe für eine Scheibenbremse eines Kraftfahrzeuges mit mindestens einer Reibscheibe, deren Reibflächen eine Beschichtung aufweisen, dadurch gekennzeichnet, daß die Beschichtung {6, 6a) der Reibflächen (2, 3) aus einer Chromcarbid-Schicht besteht, die in einem thermischen Spritzverfahren aufbringbar ist und eine maximale Dicke von 1 mm aufweist.1. Brake disc for a disc brake of a motor vehicle with at least one friction disc, the friction surfaces of which have a coating, characterized in that the coating (6, 6a) of the friction surfaces (2, 3) consists of a chromium carbide layer which can be applied in a thermal spraying process and has a maximum thickness of 1 mm. 2. Bremsscheibe nach Anspruch 1, dadurch gekennzeichnet, daß die Bremsscheibe aus Grauguß oder einem Karbonwerkstoff besteht.2. Brake disc according to claim 1, characterized in that the brake disc is made of gray cast iron or a carbon material. 3. Bremsscheibe nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, daß die außenliegenden Reibflächen (2, 3) der Bremsscheibe (1) und eine weitere inneniiegende Reibfläche im Topf (7) der Bremsscheibe für Bremsbacken einer Handbremse eine Chromcarbid-Schicht aufweist3. Brake disc according to claims 1 or 2, characterized in that the outer friction surfaces (2, 3) of the brake disc (1) and a further inner friction surface in the cup (7) of the brake disc for brake shoes of a hand brake have a chromium carbide layer
DE29617774U 1996-10-12 1996-10-12 Brake disc Expired - Lifetime DE29617774U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29617774U DE29617774U1 (en) 1996-10-12 1996-10-12 Brake disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29617774U DE29617774U1 (en) 1996-10-12 1996-10-12 Brake disc

Publications (1)

Publication Number Publication Date
DE29617774U1 true DE29617774U1 (en) 1996-11-28

Family

ID=8030509

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29617774U Expired - Lifetime DE29617774U1 (en) 1996-10-12 1996-10-12 Brake disc

Country Status (1)

Country Link
DE (1) DE29617774U1 (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002038978A1 (en) * 2000-11-13 2002-05-16 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Brake disk and method for the production thereof
EP1258647A2 (en) 2001-05-15 2002-11-20 Volkswagen AG Brake disc for a vehicle and method for its production
GB2388560A (en) * 2002-04-26 2003-11-19 Martin John Michael Murphy Carbon-carbon brake disc with protective outer layer on friction surface
FR2855575A1 (en) 2003-05-28 2004-12-03 Volkswagen Ag BRAKE DISC FOR VEHICLES AND MANUFACTURING METHOD THEREOF
DE102004016098A1 (en) * 2004-04-01 2005-10-20 Volkswagen Ag Production process for brake disk involves galvanic application of at least one intermediate layer
DE102004016092A1 (en) * 2004-04-01 2005-10-20 Volkswagen Ag Brake disk for a motor vehicle has a main body with a coating partly in an outer surface area and a layer resistant to wear
DE102006004156A1 (en) * 2006-01-30 2007-08-09 Daimlerchrysler Ag Composite brake disc with steel coating
DE102008012683A1 (en) * 2008-03-05 2009-09-10 Audi Ag Process for producing friction surfaces or friction layers of a carbon-ceramic brake disk and a carbon-ceramic brake disk equipped with such friction surfaces or friction layers
DE102008026503A1 (en) * 2008-05-27 2009-12-03 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Braking device for vehicle, has actuator device provided with brake lining, and carrier body provided with ring-shaped surface area, where brake lining and ring-shaped surface area contact each other during application of brake
DE102008035849A1 (en) * 2008-08-01 2010-02-04 Klaus John Eisenmenger Method for coating a brake area of brake disks or other friction elements of brakes, comprises applying a wear-resistant coating on the brake area through thermal injection
EP2213901A1 (en) * 2009-01-30 2010-08-04 Audi AG Brake disc for disk brakes and method for producing a brake disc
WO2011124312A3 (en) * 2010-03-30 2013-04-04 Daimler Ag Friction disk having an anti-wear layer and integrated wear indication and compositions of the anti-wear layer
DE102011056307A1 (en) * 2011-12-13 2013-06-13 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Brake disc, used for motor car, includes brake disc pot, and brake disc ring provided with friction surfaces, where brake disc ring consists of cast iron material, which is coated with protective coating in region of the friction surfaces
DE102022211519A1 (en) * 2022-10-31 2024-05-02 Stellantis Auto Sas Friction disc with wear indicator
DE102024201234A1 (en) * 2024-02-12 2025-08-14 Stellantis Auto Sas Coated brake disc for a vehicle, testing device for testing such a brake disc and method for detecting whether a critical friction layer thickness of a friction layer of such a brake disc has been reached or fallen below

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE825032C (en) * 1949-02-26 1951-12-17 Demag Zug Gmbh Brake or clutch disc
DE3406450A1 (en) * 1983-02-28 1984-08-30 The Budd Co., Troy, Mich. Disc brake rotor
DE4125064A1 (en) * 1991-07-29 1993-02-04 Linde Ag BRAKE DISC
DE19505724A1 (en) * 1995-02-20 1996-08-29 Daimler Benz Ag Aluminum brake disc

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE825032C (en) * 1949-02-26 1951-12-17 Demag Zug Gmbh Brake or clutch disc
DE3406450A1 (en) * 1983-02-28 1984-08-30 The Budd Co., Troy, Mich. Disc brake rotor
DE4125064A1 (en) * 1991-07-29 1993-02-04 Linde Ag BRAKE DISC
DE19505724A1 (en) * 1995-02-20 1996-08-29 Daimler Benz Ag Aluminum brake disc

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JP 1-116326 A.,In: Patents Abstracts of Japan, M-857,July 31,1989,Vol.13,No.340 *
SCHWARZ,E.: Verschleißfestes Hartbeschichten durch Plasma- und Flammschockspritzen (Detonationsspritzen). In: Werkstatt und Betrieb 110, 1977, 10, S.724-729 *

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7261192B2 (en) 2000-11-13 2007-08-28 Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh Brake disk and method for the production thereof
DE10056161A1 (en) * 2000-11-13 2002-05-29 Knorr Bremse Systeme Brake disc and process for its manufacture
WO2002038978A1 (en) * 2000-11-13 2002-05-16 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Brake disk and method for the production thereof
EP1258647A2 (en) 2001-05-15 2002-11-20 Volkswagen AG Brake disc for a vehicle and method for its production
EP1258647A3 (en) * 2001-05-15 2003-04-16 Volkswagen AG Brake disc for a vehicle and method for its production
GB2388560A (en) * 2002-04-26 2003-11-19 Martin John Michael Murphy Carbon-carbon brake disc with protective outer layer on friction surface
FR2855575A1 (en) 2003-05-28 2004-12-03 Volkswagen Ag BRAKE DISC FOR VEHICLES AND MANUFACTURING METHOD THEREOF
DE10324186A1 (en) * 2003-05-28 2004-12-16 Volkswagen Ag Brake disc for a vehicle
DE102004016098A1 (en) * 2004-04-01 2005-10-20 Volkswagen Ag Production process for brake disk involves galvanic application of at least one intermediate layer
DE102004016092A1 (en) * 2004-04-01 2005-10-20 Volkswagen Ag Brake disk for a motor vehicle has a main body with a coating partly in an outer surface area and a layer resistant to wear
DE102006004156A1 (en) * 2006-01-30 2007-08-09 Daimlerchrysler Ag Composite brake disc with steel coating
DE102008012683A1 (en) * 2008-03-05 2009-09-10 Audi Ag Process for producing friction surfaces or friction layers of a carbon-ceramic brake disk and a carbon-ceramic brake disk equipped with such friction surfaces or friction layers
EP2100864A1 (en) * 2008-03-05 2009-09-16 Audi AG Method for producing friction surfaces or friction layers of a carbon-ceramic brake disk and a carbon-ceramic brake disk equipped with same
DE102008026503A1 (en) * 2008-05-27 2009-12-03 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Braking device for vehicle, has actuator device provided with brake lining, and carrier body provided with ring-shaped surface area, where brake lining and ring-shaped surface area contact each other during application of brake
DE102008035849A1 (en) * 2008-08-01 2010-02-04 Klaus John Eisenmenger Method for coating a brake area of brake disks or other friction elements of brakes, comprises applying a wear-resistant coating on the brake area through thermal injection
EP2213901A1 (en) * 2009-01-30 2010-08-04 Audi AG Brake disc for disk brakes and method for producing a brake disc
WO2011124312A3 (en) * 2010-03-30 2013-04-04 Daimler Ag Friction disk having an anti-wear layer and integrated wear indication and compositions of the anti-wear layer
DE102011056307A1 (en) * 2011-12-13 2013-06-13 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Brake disc, used for motor car, includes brake disc pot, and brake disc ring provided with friction surfaces, where brake disc ring consists of cast iron material, which is coated with protective coating in region of the friction surfaces
DE102022211519A1 (en) * 2022-10-31 2024-05-02 Stellantis Auto Sas Friction disc with wear indicator
DE102024201234A1 (en) * 2024-02-12 2025-08-14 Stellantis Auto Sas Coated brake disc for a vehicle, testing device for testing such a brake disc and method for detecting whether a critical friction layer thickness of a friction layer of such a brake disc has been reached or fallen below

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19970116

R163 Identified publications notified

Effective date: 19961211

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 19990924

R157 Lapse of ip right after 6 years

Effective date: 20030501