DE102019202476A1 - Friction brake body for a friction brake of a motor vehicle, in particular a brake disc, method for producing a friction brake body - Google Patents

Friction brake body for a friction brake of a motor vehicle, in particular a brake disc, method for producing a friction brake body Download PDF

Info

Publication number
DE102019202476A1
DE102019202476A1 DE102019202476.9A DE102019202476A DE102019202476A1 DE 102019202476 A1 DE102019202476 A1 DE 102019202476A1 DE 102019202476 A DE102019202476 A DE 102019202476A DE 102019202476 A1 DE102019202476 A1 DE 102019202476A1
Authority
DE
Germany
Prior art keywords
friction brake
base body
wear protection
protection layer
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.)
Pending
Application number
DE102019202476.9A
Other languages
German (de)
Inventor
Christian Schnatterer
Kangjian Wu
Ilja Potapenko
Simon Loskyll
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE102019202476.9A priority Critical patent/DE102019202476A1/en
Priority to PCT/EP2020/054137 priority patent/WO2020173742A1/en
Publication of DE102019202476A1 publication Critical patent/DE102019202476A1/en
Pending legal-status Critical Current

Links

Images

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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/12—Aluminium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/021—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material including at least one metal alloy layer
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/321—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with at least one metal alloy layer
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C23C28/341—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one carbide layer
    • 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
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D69/0408—Attachment of linings specially adapted for plane linings
    • 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
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D2069/0425—Attachment methods or devices
    • F16D2069/045—Bonding
    • F16D2069/0458—Bonding metallurgic, e.g. welding, brazing, sintering
    • 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
    • F16D2250/00—Manufacturing; Assembly
    • F16D2250/0038—Surface treatment
    • F16D2250/0053—Hardening

Abstract

Die Erfindung betrifft ein Reibbremskörper (1) für eine Reibbremse eines Kraftfahrzeugs, insbesondere Bremsscheibe (2), wobei der Reibbremskörper (1) einen Basiskörper (3) aus Grauguss mit zumindest einer Verschleißschutzschicht (5) auf zumindest einer Reibkontaktoberfläche (4) des Basiskörpers (3) aufweist. Es ist vorgesehen, dass zwischen der Verschleißschutzschicht (5) und dem Basiskörper (3) eine Zwischenschicht (6) aus einer Aluminium-Silizium-Legierung vorhanden ist.The invention relates to a friction brake body (1) for a friction brake of a motor vehicle, in particular a brake disc (2), the friction brake body (1) having a base body (3) made of gray cast iron with at least one wear protection layer (5) on at least one friction contact surface (4) of the base body ( 3). It is provided that an intermediate layer (6) made of an aluminum-silicon alloy is present between the wear protection layer (5) and the base body (3).

Description

Die Erfindung betrifft einen Reibbremskörper für eine Reibbremse eines Kraftfahrzeugs, insbesondere Bremsscheibe, wobei der Reibbremskörper einen Basiskörper aus Grauguss mit zumindest einer Verschleißschutzschicht auf zumindest einer Reibkontaktoberfläche des Basiskörpers aufweist.The invention relates to a friction brake body for a friction brake of a motor vehicle, in particular a brake disc, the friction brake body having a base body made of gray cast iron with at least one wear protection layer on at least one friction contact surface of the base body.

Weiterhin betrifft die Erfindung ein Verfahren zum Herstellen eines wie obenstehend beschriebenen Reibbremskörpers.The invention also relates to a method for producing a friction brake body as described above.

Stand der TechnikState of the art

Reibbremskörper, insbesondere Bremsscheiben, für Reibbremsen von Kraftfahrzeugen werden üblicherweise zumindest im Wesentlichen aus Grauguss gefertigt. Während des Bremsens erfolgt ein relativ starker Abrieb zwischen dem Reibbremskörper und einem gegen den Reibbremskörper gepressten Bremsklotz der Reibbremse. Durch den Abrieb verschleißt der Reibbremskörper und es entsteht Bremsstaub, der in die Umwelt gelangt.Friction brake bodies, in particular brake disks, for friction brakes in motor vehicles are usually manufactured at least essentially from gray cast iron. During braking, there is relatively strong abrasion between the friction brake body and a brake pad of the friction brake that is pressed against the friction brake body. As a result of the abrasion, the friction brake body wears out and brake dust is generated which is released into the environment.

Um den Verschleiß des Reibbremskörpers zu reduzieren, ist es bekannt, eine Verschleißschutzschicht auf zumindest einer Reibkontaktoberfläche, die dem Zusammenwirken mit dem Bremsklotz dient, vorzusehen, welche beispielsweise aus verschleißfesten Materialien, wie beispielsweise als Hartmetallbeschichtung gefertigt werden.In order to reduce the wear of the friction brake body, it is known to provide a wear protection layer on at least one friction contact surface, which is used to interact with the brake pad, which is made, for example, of wear-resistant materials such as a hard metal coating.

Offenbarung der ErfindungDisclosure of the invention

Der erfindungsgemäße Reibbremskörper mit den Merkmalen des Anspruchs 1 hat den Vorteil, dass durch kostengünstige Mittel eine verbesserte Haftung der Verschleißschutzschicht auf dem Basiskörper gewährleistet wird. Erfindungsgemäß ist hierzu zwischen der Verschleißschutzschicht und dem Basiskörper eine Zwischenschicht aus einer Aluminium-Silizium-Legierung ausgebildet. Durch die Aluminium-Silizium-Legierung erfolgt eine vorteilhafte Verbindung der Verschleißschutzschicht, beispielsweise Hartmetallschicht, mit dem Grauguss des Basiskörpers. Außerdem dient die Zwischenschicht als Korrosionsschutzschicht, die im Falle von Rissen durch die Verschleißschutzschicht Unterkorrosion im Grauguss-Basiskörper verhindert.The friction brake body according to the invention with the features of claim 1 has the advantage that an improved adhesion of the wear protection layer on the base body is ensured by inexpensive means. According to the invention, an intermediate layer made of an aluminum-silicon alloy is formed for this purpose between the wear protection layer and the base body. The aluminum-silicon alloy creates an advantageous connection between the wear protection layer, for example a hard metal layer, with the gray cast iron of the base body. In addition, the intermediate layer serves as a corrosion protection layer, which prevents undercorrosion in the gray cast iron base in the event of cracks through the wear protection layer.

Vorzugsweise weist die Zwischenschicht einen Silizium-Gehalt von 1 % bis 12 % des Gewichts der Zwischenschicht auf. Durch die Höhe des Silizium-Gehalts wird die sich ausbildende Aluminium-Silizium-Schichtdicke während der Herstellung kontrolliert. Insbesondere wird das schnelle Aufwachsen unerwünschter dicker Schichten durch den gewählten Silizium-Gehalt verhindert.The intermediate layer preferably has a silicon content of 1% to 12% of the weight of the intermediate layer. The aluminum-silicon layer thickness that forms is controlled by the level of the silicon content during manufacture. In particular, the rapid growth of undesired thick layers is prevented by the selected silicon content.

Besonders bevorzugt erstreckt sich die Zwischenschicht über die gesamte Oberfläche des Basiskörpers, sodass der gesamte Basiskörper mit der vorteilhaften Aluminium-Silizium-Legierung beschichtet ist. Alternativ wird die Zwischenschicht nur im Bereich der Reibkontaktoberflächen auf dem Basiskörper aufgebracht, um Materialressourcen zu sparen.The intermediate layer particularly preferably extends over the entire surface of the base body, so that the entire base body is coated with the advantageous aluminum-silicon alloy. Alternatively, the intermediate layer is only applied to the base body in the area of the frictional contact surfaces in order to save material resources.

Gemäß einer bevorzugten Weiterbildung der Erfindung weist die Verschleißschutzschicht Hartmetalle oder Karbide auf, um eine besonders hohe Verschleißbeständigkeit zu gewährleisten.According to a preferred development of the invention, the wear protection layer has hard metals or carbides in order to ensure particularly high wear resistance.

Das erfindungsgemäße Verfahren mit den Merkmalen des Anspruchs 6 zeichnet sich dadurch aus, dass zwischen der Verschleißschutzschicht und dem Basiskörper eine Zwischenschicht aus einer Aluminium-Silizium-Legierung hergestellt wird. Es ergeben sich dadurch die bereits genannten Vorteile.The method according to the invention with the features of claim 6 is characterized in that an intermediate layer made of an aluminum-silicon alloy is produced between the wear protection layer and the base body. This results in the advantages already mentioned.

Insbesondere wird vor dem Aufbringen der Verschleißschutzschicht der Basiskörper zum Herstellen der Zwischenschicht tauchbeschichtet. Durch das Tauchbeschichten wird der Reibbremskörper insgesamt in eine Aluminium-Silizium-Schmelze eingetaucht, die die gesamte Oberfläche des Basiskörpers bedeckt, sodass der gesamte Basiskörper mit der Aluminium-Silizium-Legierung versehen wird. Diese hat den Vorteil, dass bevorzugt auch in dem Basiskörper ausgebildete Kühlkanäle mit der Aluminium-Silizium-Legierung beschichtet werden. Dadurch ergibt sich ein vorteilhafter Korrosionsschutz für die Kühlkanäle. Ein nachträglicher Prozessschritt, bei welchem ein Korrosionsschutzlack auf die Kühlkanäle aufgebracht wird, kann somit entfallen und entfällt bevorzugt. Insbesondere wird der Reibbremskörper während des Tauchbeschichtens gedreht beziehungsweise rotiert, sodass eine gleichmäßige Beschichtung mit der Aluminium-Silizium-Legierung gewährleistet wird.In particular, before the wear protection layer is applied, the base body is dip-coated for producing the intermediate layer. As a result of the dip coating, the friction brake body as a whole is immersed in an aluminum-silicon melt that covers the entire surface of the base body, so that the entire base body is provided with the aluminum-silicon alloy. This has the advantage that cooling channels formed in the base body are also coated with the aluminum-silicon alloy. This results in an advantageous corrosion protection for the cooling channels. A subsequent process step in which a corrosion protection lacquer is applied to the cooling channels can thus be omitted and is preferably omitted. In particular, the friction brake body is rotated or rotated during the dip coating so that a uniform coating with the aluminum-silicon alloy is ensured.

Vorzugsweise weist die Verschleißschutzschicht Hartmetalle oder Karbide auf.The wear protection layer preferably has hard metals or carbides.

Besonders bevorzugt wird die Verschleißschutzschicht nach dem Tauchbeschichten hergestellt, wobei hier auf bekannte Verfahren zurückgegriffen werden kann.The wear protection layer is particularly preferably produced after the dip coating, it being possible to use known methods here.

Besonders bevorzugt wird die Aluminium-Silizium-Legierung mit einem Silizium-Gehalt von 1 % bis 12 % des Gewichts der Zwischenschicht hergestellt, um ein schnelles Aufwachsen unerwünschter dicker Schichten zu verhindern. Es ergeben sich die bereits genannten Vorteile. Optional werden die Zwischenschicht und/oder die Verschleißschutzschicht nur im Bereich der Reibkontaktoberflächen oder Reibkontaktoberfläche auf den Basiskörper aufgebracht, um Materialressourcen zu sparen. In diesem Fall müssen die Kühlkanäle während des Tauchbeschichtens verschlossen werden und nicht zu beschichtende Bereiche abgedeckt werden.The aluminum-silicon alloy is particularly preferably produced with a silicon content of 1% to 12% of the weight of the intermediate layer, in order to prevent undesired thick layers from growing rapidly. The advantages already mentioned result. Optionally, the intermediate layer and / or the wear protection layer are only applied to the base body in the area of the frictional contact surfaces or the frictional contact surface in order to save material resources. In this case the cooling channels have to be closed during the dip coating and areas not to be coated have to be covered.

Obwohl in der vorliegenden Beschreibung die Erfindung anhand einer Bremsscheibe beschrieben wird, soll hier deutlich darauf hingewiesen werden, dass der erfindungsgemäße Reibbremskörper neben einer Bremsscheibe auch den Reibbremskörper bei einer Trommelbremse betrifft.Although in the present description the invention is described with reference to a brake disk, it should be clearly pointed out here that the friction brake body according to the invention relates not only to a brake disk but also to the friction brake body in a drum brake.

Weitere Vorteile und bevorzugte Merkmale und Merkmalskombinationen ergeben sich insbesondere aus dem zuvor Beschriebenen sowie aus den Ansprüchen. Im Folgenden soll die Erfindung anhand der Zeichnungen näher erläutert werden. Dazu zeigen

  • 1 eine vorteilhafte Bremsscheibe in einer vereinfachten perspektivischen Darstellung und
  • 2 ein Flussdiagramm zur Erläuterung eines vorteilhaften Verfahrens zum Herstellen der Bremsscheibe.
Further advantages and preferred features and combinations of features emerge in particular from what has been described above and from the claims. The invention will be explained in more detail below with reference to the drawings. To show
  • 1 an advantageous brake disc in a simplified perspective illustration and
  • 2 a flow chart to explain an advantageous method for producing the brake disc.

1 zeigt in einer vereinfachten perspektivischen Darstellung einen Reibbremskörper 1 in Form einer Bremsscheibe 2 für eine Reibbremse eines Kraftfahrzeugs. Der Reibbremskörper 1 weist einen kreisringförmigen Basiskörper 3 auf, der an seinen (axialen) Stirnseiten jeweils eine kreisringförmige Reibkontaktoberfläche 4 aufweist. Ein optional vorhandener Bremsscheibentopf ist in 1 nicht dargestellt. Die Reibkontaktoberfläche 4 wird dabei von einer Verschleißschutzschicht 5 gebildet, die beispielsweise Hartmetalle oder Karbide aufweist. 1 shows a friction brake body in a simplified perspective illustration 1 in the form of a brake disc 2 for a friction brake of a motor vehicle. The friction brake body 1 has an annular base body 3 on, which has an annular frictional contact surface on its (axial) end faces 4th having. An optionally available brake disc chamber is in 1 not shown. The frictional contact surface 4th is covered by a wear protection layer 5 formed, which has, for example, hard metals or carbides.

Die Verschleißschutzschicht 5 ist nicht direkt auf dem Grauguss des Basiskörpers 3, der bevorzugt perlitisch oder ferritisch-perlitisch vorliegt, aufgebracht, sondern auf einer dazwischenliegenden Zwischenschicht 6, die aus einer Aluminium-Silizium-Legierung gebildet ist.The wear protection layer 5 is not directly on the cast iron base 3 , which is preferably pearlitic or ferritic-pearlitic, applied, but on an intermediate layer in between 6th made of an aluminum-silicon alloy.

2 zeigt dazu anhand eines Flussdiagramms ein vorteilhaftes Verfahren zum Herstellen der Bremsscheibe 2. 2 shows an advantageous method for producing the brake disk with the aid of a flow chart 2 .

In einem ersten Schritt S1 wird dabei der Basiskörper 3 aus Grauguss bereitgestellt. Der Basiskörper 3 wird in einem darauffolgenden Schritt S2 einem Tauchbeschichtungsverfahren unterzogen, bei welchem der Basiskörper in eine Aluminium-Silizium-Schmelze eingetaucht wird, sodass die gesamte Oberfläche des Basiskörpers 3 von der Schmelze bedeckt wird. Optional weist der Basiskörper 3 einen oder mehrere Kühlkanäle 7 auf, in welche dann die Schmelze auch eindringt und die Oberflächen der Kühlkanäle 7 benetzt. Vorzugsweise wird der Basiskörper in der Schmelze gedreht beziehungsweise rotiert, sodass eine gleichmäßige Benetzung beziehungsweise Bedeckung des Basiskörpers 3 gewährleistet ist und sich eine gleichmäßige Zwischenschicht 6 aus der Aluminium-Silizium-Legierung auf dem Basiskörper ausbildet. Der Silizium-Gehalt der Aluminium-Silizium-Schmelze weist bevorzugt 1 bis 12 % ihres Gewichtsanteils auf. Während des Tauchbeschichtens bildet sich ein zweiphasiges Schichtsystem, das aus einer äußeren metallischen Schicht und einer inneren intermetallischen Schicht besteht. Weil für die Funktionalität der Zwischenschicht des Reibbremskörpers 1 primär die metallische Schicht benötigt wird, ist eine Reduzierung der Dicke der intermetallischen Schicht bevorzugt.In a first step S1 becomes the base body 3 made of gray cast iron. The base body 3 will in a subsequent step S2 subjected to a dip coating process in which the base body is immersed in an aluminum-silicon melt so that the entire surface of the base body 3 is covered by the melt. Optionally, the base body 3 one or more cooling channels 7th into which the melt then also penetrates and the surfaces of the cooling channels 7th wetted. The base body is preferably rotated or rotated in the melt so that uniform wetting or coverage of the base body is achieved 3 is guaranteed and a uniform intermediate layer 6th from the aluminum-silicon alloy on the base body. The silicon content of the aluminum-silicon melt is preferably 1 to 12% of its weight fraction. During dip coating, a two-phase layer system is formed, which consists of an outer metallic layer and an inner intermetallic layer. Because for the functionality of the intermediate layer of the friction brake body 1 primarily the metallic layer is required, a reduction in the thickness of the intermetallic layer is preferred.

In einem darauffolgenden Schritt S3 wird der Basiskörper 3, der nunmehr die Aluminium-Silizium-Legierung aufweist, mit der Verschleißschutzschicht 5 versehen, die bevorzugt Hartmetalle oder Karbide enthält. Bevorzugt wird die Verschleißschutzschicht 5 nur im Bereich der Reibkontaktoberfläche 4 hergestellt, sodass ressourcensparend gearbeitet wird, und die Oberflächenhärte besonders dort erreicht wird, wo sie während eines Bremsvorgangs benötigt wird. In einem darauffolgenden Schritt S4 wird die fertige Bremsscheibe 2 erhalten.In a subsequent step S3 becomes the base body 3 , which now has the aluminum-silicon alloy, with the wear protection layer 5 provided, which preferably contains hard metals or carbides. The wear protection layer is preferred 5 only in the area of the friction contact surface 4th manufactured so that it saves resources and the surface hardness is achieved especially where it is needed during a braking process. In a subsequent step S4 becomes the finished brake disc 2 receive.

Claims (10)

Reibbremskörper (1) für eine Reibbremse eines Kraftfahrzeugs, insbesondere Bremsscheibe (2), wobei der Reibbremskörper (1) einen Basiskörper (3) aus Grauguss mit zumindest einer Verschleißschutzschicht (5) auf zumindest einer Reibkontaktoberfläche (4) des Basiskörpers (3) aufweist, dadurch gekennzeichnet, dass zwischen der Verschleißschutzschicht (5) und dem Basiskörper (3) eine Zwischenschicht (6) aus einer Aluminium-Silizium-Legierung vorhanden ist.Friction brake body (1) for a friction brake of a motor vehicle, in particular a brake disc (2), the friction brake body (1) having a base body (3) made of gray cast iron with at least one wear protection layer (5) on at least one friction contact surface (4) of the base body (3), characterized in that an intermediate layer (6) made of an aluminum-silicon alloy is present between the wear protection layer (5) and the base body (3). Reibbremskörper nach Anspruch 1, dadurch gekennzeichnet, dass die Zwischenschicht (6) einen Silizium-Gehalt von 1 % bis 12 % des Gewichts der Zwischenschicht (6) aufweist.Friction brake body after Claim 1 , characterized in that the intermediate layer (6) has a silicon content of 1% to 12% of the weight of the intermediate layer (6). Reibbremskörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sich die Zwischenschicht (6) über die gesamte Oberfläche des Basiskörpers (3) erstreckt.Friction brake body according to one of the preceding claims, characterized in that the intermediate layer (6) extends over the entire surface of the base body (3). Reibbremskörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sich die Zwischenschicht (6) und/oder die Verschleißschutzschicht (5) nur über die Reibkontaktoberfläche (4) erstrecken.Friction brake body according to one of the preceding claims, characterized in that the intermediate layer (6) and / or the wear protection layer (5) only extend over the friction contact surface (4). Reibbremskörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Verschleißschutzschicht (5) Hartmetalle oder Karbide enthält.Friction brake body according to one of the preceding claims, characterized in that the wear protection layer (5) contains hard metals or carbides. Verfahren zum Herstellen eines Reibbremskörpers (1), insbesondere Bremsscheibe (2), für eine Reibbremse eines Kraftfahrzeugs, wobei ein Basiskörper (3) des Reibbremskörpers (1) aus Grauguss gefertigt und mit einer Verschleißschutzschicht (5) versehen wird, dadurch gekennzeichnet, dass zwischen der Verschleißschutzschicht (5) und dem Basiskörper (3) eine Zwischenschicht (6) aus einer Aluminium-Silizium-Legierung tauchbeschichtet wird. A method for producing a friction brake body (1), in particular a brake disc (2), for a friction brake of a motor vehicle, wherein a base body (3) of the friction brake body (1) is made of gray cast iron and provided with a wear protection layer (5), characterized in that between the wear protection layer (5) and the base body (3) an intermediate layer (6) made of an aluminum-silicon alloy is dip-coated. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass vor dem Aufbringen der Verschleißschutzschicht (5)der Basiskörper (3) zum Herstellen der Zwischenschicht (6) tauchbeschichtet wird.Procedure according to Claim 6 , characterized in that before the wear protection layer (5) is applied, the base body (3) is dip-coated to produce the intermediate layer (6). Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Verschleißschutzschicht (5) aus Hartmetallen oder Karbiden enthaltenden Werkstoffen gefertigt wird.Method according to one of the preceding claims, characterized in that the wear protection layer (5) is manufactured from hard metals or materials containing carbides. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Verschleißschutzschicht (5) nach dem Tauchbeschichten hergestellt wird.Method according to one of the preceding claims, characterized in that the wear protection layer (5) is produced after the dip coating. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Aluminium-Silizium-Legierung mit einem Silizium-Gehalt von 1 % bis 12 % des Gewichts der Zwischenschicht (6) hergestellt wird.Method according to one of the preceding claims, characterized in that the aluminum-silicon alloy is produced with a silicon content of 1% to 12% of the weight of the intermediate layer (6).
DE102019202476.9A 2019-02-25 2019-02-25 Friction brake body for a friction brake of a motor vehicle, in particular a brake disc, method for producing a friction brake body Pending DE102019202476A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE102019202476.9A DE102019202476A1 (en) 2019-02-25 2019-02-25 Friction brake body for a friction brake of a motor vehicle, in particular a brake disc, method for producing a friction brake body
PCT/EP2020/054137 WO2020173742A1 (en) 2019-02-25 2020-02-18 Friction brake body for a friction brake of a motor vehicle, friction brake and method for producing a friction brake body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019202476.9A DE102019202476A1 (en) 2019-02-25 2019-02-25 Friction brake body for a friction brake of a motor vehicle, in particular a brake disc, method for producing a friction brake body

Publications (1)

Publication Number Publication Date
DE102019202476A1 true DE102019202476A1 (en) 2020-08-27

Family

ID=69723900

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102019202476.9A Pending DE102019202476A1 (en) 2019-02-25 2019-02-25 Friction brake body for a friction brake of a motor vehicle, in particular a brake disc, method for producing a friction brake body

Country Status (2)

Country Link
DE (1) DE102019202476A1 (en)
WO (1) WO2020173742A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010035646B3 (en) * 2010-08-27 2011-12-15 Daimler Ag Method for manufacturing brake disk for disk brake of motor vehicle i.e. passenger car, involves forming two regions of brake disk with different material compositions such that regions have different coefficient of thermal expansions
DE102014205666A1 (en) * 2014-03-26 2015-10-01 Ford Global Technologies, Llc Method for producing a brake disk and brake disk

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0201773D0 (en) * 2002-06-11 2002-06-11 Scania Cv Ab Wear resistant coating and wear resistant coated component
DE102004016095A1 (en) * 2004-04-01 2005-10-20 Volkswagen Ag Brake disk for a vehicle comprises an intermediate layer having increased diffusion compactness against moisture and/or ions arranged between an outer wear-resistant layer and a base body
DE102008053637B4 (en) * 2008-10-29 2012-01-19 Daimler Ag Friction ring of an internally ventilated brake disk
DE102013213790A1 (en) * 2013-07-15 2015-06-11 Ford Global Technologies, Llc Method for producing a brake disk and brake disk

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010035646B3 (en) * 2010-08-27 2011-12-15 Daimler Ag Method for manufacturing brake disk for disk brake of motor vehicle i.e. passenger car, involves forming two regions of brake disk with different material compositions such that regions have different coefficient of thermal expansions
DE102014205666A1 (en) * 2014-03-26 2015-10-01 Ford Global Technologies, Llc Method for producing a brake disk and brake disk

Also Published As

Publication number Publication date
WO2020173742A1 (en) 2020-09-03

Similar Documents

Publication Publication Date Title
DE102010047307B4 (en) Method for improving the corrosion resistance of a brake rotor and brake rotor
DE102014008844A1 (en) Brake disc for a motor vehicle
WO2006048084A1 (en) Wear-resistant brake disk or brake drum and method for the production thereof
DE102011075821A1 (en) Brake disc and method for producing a brake disc
DE102014205666A1 (en) Method for producing a brake disk and brake disk
DE102017212706A1 (en) Brake disc and method for producing a brake disc
DE112007000435T5 (en) piston ring
DE102019207292A1 (en) Friction brake body for a friction brake of a motor vehicle, friction brake and method for producing a friction brake body
DE1965754A1 (en) Machine element with at least one friction surface and process for its manufacture
DE102019208411A1 (en) Friction brake body for a friction brake of a motor vehicle, friction brake and method for producing a friction brake body
DE102013213790A1 (en) Method for producing a brake disk and brake disk
DE102014006064A1 (en) Coated cast iron component and manufacturing process
DE102006035948A1 (en) Brake disk for deceleration of rotating motion of e.g. shaft in train, has base electrolytically coated with wear resistant material, where material of coating is ductile metallic basic material, in which hard material particle is laid
DE102015204813A1 (en) Method for producing a brake disk and brake disk
WO2021254857A1 (en) Friction brake body, friction brake, and method for producing a friction brake body
DE102012207814A1 (en) Component, preferably sliding element comprises a substrate element, and a protective coating applied on the substrate element, comprising a primary layer, whose primary components are molybdenum and nitrogen
DE102019202476A1 (en) Friction brake body for a friction brake of a motor vehicle, in particular a brake disc, method for producing a friction brake body
DE102012005174A1 (en) Piston ring e.g. pressure ring, for use in groove of piston of e.g. diesel engine, has bonding layer made of pure chromium material and arranged between lower and exterior layers of outer peripheral front side of main annular metallic base
EP4029966A1 (en) Method for producing a coated grey cast iron brake disc
WO2020173756A1 (en) Friction brake body for a friction brake of a motor vehicle, friction brake and method for producing a friction brake body
DE102019209424B3 (en) Friction brake body for a wheel brake of a motor vehicle, friction brake and method for producing a friction brake body
DE102020200146A1 (en) Ferrous metal component with an alloyed burnishing layer
DE102004010212B4 (en) Coating system for corrosion protection and its use
DE3212214C2 (en) Piston ring and process for its manufacture
DE102019209420A1 (en) Friction brake body for a friction brake, friction brake and method for producing a friction brake body

Legal Events

Date Code Title Description
R012 Request for examination validly filed
R016 Response to examination communication
R082 Change of representative

Representative=s name: GLEISS GROSSE SCHRELL UND PARTNER MBB PATENTAN, DE