WO2019219402A1 - Corps de freinage et procédé de fabrication d'un corps de freinage - Google Patents

Corps de freinage et procédé de fabrication d'un corps de freinage Download PDF

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Publication number
WO2019219402A1
WO2019219402A1 PCT/EP2019/061332 EP2019061332W WO2019219402A1 WO 2019219402 A1 WO2019219402 A1 WO 2019219402A1 EP 2019061332 W EP2019061332 W EP 2019061332W WO 2019219402 A1 WO2019219402 A1 WO 2019219402A1
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WIPO (PCT)
Prior art keywords
coating
brake
brake body
friction surface
base body
Prior art date
Application number
PCT/EP2019/061332
Other languages
German (de)
English (en)
Inventor
Rainer Langlet
Original Assignee
Langlet GmbH
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Filing date
Publication date
Application filed by Langlet GmbH filed Critical Langlet GmbH
Publication of WO2019219402A1 publication Critical patent/WO2019219402A1/fr

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/22Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
    • B23K20/227Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded with ferrous layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/22Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
    • B23K20/233Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
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    • C23C28/00Coating 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
    • C23C28/04Coating 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 of inorganic non-metallic material
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    • C23C28/00Coating 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
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    • C23C28/00Coating 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
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    • C23C28/048Coating 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 of inorganic non-metallic material with layers graded in composition or physical properties
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    • C23C28/30Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
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    • C23C28/00Coating 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
    • C23C28/30Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
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    • C23C28/00Coating 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
    • C23C28/30Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
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    • C23C28/00Coating 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
    • C23C28/30Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
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    • C23CCOATING 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
    • C23C28/00Coating 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
    • C23C28/30Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34Coatings 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
    • C23C28/345Coatings 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 oxide layer
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    • C23C28/00Coating 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
    • C23C28/30Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34Coatings 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
    • C23C28/345Coatings 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 oxide layer
    • C23C28/3455Coatings 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 oxide layer with a refractory ceramic layer, e.g. refractory metal oxide, ZrO2, rare earth oxides or a thermal barrier system comprising at least one refractory oxide layer
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    • C23C28/00Coating 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
    • C23C28/30Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
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    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
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    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
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    • C23C4/06Metallic material
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    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/10Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
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    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/129Flame spraying
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    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18After-treatment
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/02Braking members; Mounting thereof
    • F16D65/12Discs; Drums for disc brakes
    • F16D65/127Discs; Drums for disc brakes characterised by properties of the disc surface; Discs lined with friction material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00Materials; Production methods therefor
    • F16D2200/0004Materials; Production methods therefor metallic
    • F16D2200/0008Ferro
    • F16D2200/0013Cast iron
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00Materials; Production methods therefor
    • F16D2200/0034Materials; Production methods therefor non-metallic
    • F16D2200/0039Ceramics
    • F16D2200/0043Ceramic base, e.g. metal oxides or ceramic binder
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00Materials; Production methods therefor
    • F16D2200/0034Materials; Production methods therefor non-metallic
    • F16D2200/0052Carbon

Definitions

  • the invention relates to a brake body for a brake, and in particular a brake body with a coated base body.
  • the invention further relates to a method for setting forth a brake body with a coated Grundkör by.
  • Brake body for brakes of, for example, vehicles for example, brake discs or brake discs
  • Gray cast iron is characterized by a high volumetric heat capacity and good thermal shock resistance at a low price.
  • disadvantages which include the high weight, the strong corrosion tendency, as well as the high wear of the material in operation.
  • the corrosion causes optical defects, as the brake disc is often visible.
  • the tendency to corrosion of gray cast iron leads just in economical driving and / or in the case of electric and hybrid vehicles with large Rekuperationsan negligence and thus verbun which rare braking surfaces to surface damage of the friction surfaces that make necessary a premature replacement Kings NEN.
  • the friction wear of a brake disc contributes significantly to the particulate matter emission of a vehicle.
  • Ceramic ceramic discs have a long service life, but are less interesting for the mass of production vehicles because of their high price.
  • a primer layer is used, which is applied between Ba sismaterial and the wear and corrosion coating and mostly consists of metals or Metalllegierun conditions.
  • the application of such an intermediate layer represents a rather complicated additional process step.
  • the adhesion of a thermally sprayed layer on the base material or a primer layer is based on the Prin zip the mechanical clamping of the impinging spray particles on the substrate.
  • a much stronger connection is possible by metallurgical bonding, wherein by using thermal energy, an atomic diffusion process takes place at the interface between substrate and coating.
  • the substrate can be preheated before the injection process, so that the diffusion process can take place directly upon impact of Spritzparti angle.
  • Vorracermtempera are temperatures in the range of 120 ° C to 150 ° C known.
  • energy-consuming process step is effected in a most experienced V ei ne heating up to the limit of the melting temperature of the coating to accommodated.
  • the brake body according to the invention comprises a base body and a coating.
  • the base body may consist of a base material such as cast iron, in particular cast iron, or another iron or steel alloy.
  • the main body has at least one friction surface. Under a friction surface is to understand egg ne surface of the body, which is exposed in the use of the brake body strong friction.
  • the coating is applied to the surface formed as a friction surface of the brake body.
  • the coating may be a wear and / or corrosion resistant coating.
  • the brake body thus produced has an improved adhesion between the coating and the base material of the Grundkör pers.
  • the brake body according to the invention can be used for all brakes that are subject to corrosion and / or high wear during operation.
  • brakes in vehicles these include, for example, brakes in crane systems, wind turbines or elevators.
  • the manufacture of the brake bodies comprises the following steps:
  • the coating is applied to the base body by thermal spraying, preferably high-velocity flame spraying (HVOF).
  • HVOF high-velocity flame spraying
  • a high velocity gas jet is produced by continuous combustion of a fuel with oxygen or air under high pressure to which the material is supplied.
  • a powdery material, or a material in the form of wires or rods fed.
  • the material particles are accelerated to a high speed and divorced from the surface to be coated Reibflä with a high density of the produced layer and high adhesion hab.
  • the brake body according to the invention thus has a high resistance and consequently a long service life.
  • the thermal spraying for applying the coating according to the invention is characterized in particular by the fact that, contrary to the standard, no pure fuel (for example kerosene, propane, propylene, etc.) is used, but hydrogen can be used as fuel additive.
  • no pure fuel for example kerosene, propane, propylene, etc.
  • hydrogen can be used as fuel additive. This gives a more ecological method than the prior art and produces less to no emissions when coating (e.g., nitrogen oxides NO x, carbon dioxide CO 2).
  • the substrate surface or the friction surface is more heated during thermal coating. This will sion process at the interface between the base material of the base body and the coating material, which improves the adhesion to the prior art.
  • Another advantage of the brake body according to the invention be is that by the described acceleration of the particles to a corresponding speed (increase in kinetic energy) a Reibversch spaung between Grundkör by and coating can be achieved. Upon impact of the particles on the base body, it may lead to an at least partially to complete friction welding of the particles with the base material. As a result, a significantly higher adhesion of the coating is achieved on the body.
  • the advantage of this type of friction-welded connection is that the so-called heat-affected zone is substantially smaller than in conventional welding methods and that there is no formation of melt in the "joining zone".
  • the composite of coating and substrate which in this embodiment is referred to as friction welding, can be determined by means of a mechanical load test. After removing a fragment from the coating, it can be seen that some of the substrate residues are still adhering or adhering to the coating itself, on the side toward the substrate. This means that the adhesion or bonding of the substrate to the coating is higher than the binding of the substrate in itself. In this context, one speaks of a partially to complete Reibversch spaung of coating and substrate.
  • the friction-welded coating Due to the friction-welded coating according to the invention a reduced susceptibility to cracking of the body, for example in gray cast iron or similar materials, it is sufficient.
  • the base material gets during braking partially extreme kinetic and thermal loads from which at The body, eg cast brake disc with lamellar structure or the like, depending on the load leads to more or less cracking.
  • a friction-welded Karbidbe coating for example, a tungsten carbide coating
  • the base body is reinforced by the coating and thereby reduces depending on the thickness of the coating, the Rissanorganizement ltechnik on the reduction of the force introduction of kinetic and thermal energy.
  • the microcapillarity is so fine that the penetration of moisture is reduced so much that only a clotting ger water film can build up, which is not noticeable when braking bar or a sliding effect in the wet is not noticeable.
  • the friction surface can be heated immediately before coating by means of the flame of the spraying method used (without using the coating material).
  • a temperature of at least 200 ° C made light diffusion processes in the interface between the base material of the body and to a sufficient extent the coating material for a material connection.
  • the high-energy flame spraying leads to the production of coatings with particularly high adhesive strength and density.
  • the coating may be applied by means of another thermal spraying method, for example arc spraying, plasma spraying, cold gas spraying or detonation spraying.
  • the layer thicknesses can be in the range of about 50 ym to 500 ym. More preferably, however, a range of 100 ym to 300 ym is generated.
  • the layer thickness of the layer structure can be made up to a gewünsch th layer thickness of the coating further preferably by repeated deposition of several individual layers.
  • a material for the coating are in principle all materials in question, compared to the base material, which is in particular gray cast iron, a higher corrosion or wear resistance Ver, preferably both a higher corrosion ons- and a higher wear resistance have.
  • the coating encloses a material made of a non-oxidic ceramic material and / or a metal or a metal alloy.
  • a carbide, a boride, a nitride or mixtures of these used as a non-oxidic Keramikma material More preferably, a carbide, a boride, a nitride or mixtures of these used as a non-oxidic Keramikma material.
  • Carbides, in particular carbidic hard mate rials, have higher adhesive strengths.
  • the thermal conductivity of the carbides has a positive effect compared to oxides.
  • metal or metal alloys are preferential, iron, nickel, chromium and their alloys in question. Ni ckel and nickel-chromium alloys have proved to be advantageous in terms of the achieved layer and connection quality.
  • the material can be set as a powder or powder mixture.
  • tungsten carbide / cobalt, tungsten carbide / cobalt / chromium or chromium carbide or chromium carbide / nickel / chromium are used.
  • the coating has a graduation.
  • a graduated application of the coating with the various aforementioned materials is possible. This means that one can move from a certain material, possibly also a material mixture, over certain mixing ratios to another desired material, possibly also to another mixture of materials. This may be neces sary for certain requirements and environmental conditions to the brake or its friction surface in view of the circumstances. For example, if a friction surface is subject to very high hen temperature fluctuations or is interpreted for very high temperatures, can mix of a material, or a Maschinenstoffge, with, for example, higher linear Ausstehnungskoeffizi ducks to a material, or a mixture of materials, for example, lower linear expansion coefficient, but for example with a higher wear resistance passed or graduated. Basically, with these graduations, the best possible transition from the starting base, the substrate, to the desired properties taking into account the conditions or requirements and environmental influences is made possible.
  • the coating of, for example, tungsten carbide has an additional oxide or ceramic coating, preferably of chromium oxide. Ceramics can no longer oxidize and have a higher hardness than tungsten carbide.
  • the carbide layer for example, tungsten carbide layer, acts as an adhesive layer for the ceramic coating in this embodiment.
  • the carbide coating, in particular the tungsten carbide coating, which is additionally coated with ceramics, e.g. Chromium oxide, coated or implanted, has an even higher hardness and thus clotting Geren wear.
  • Another advantageous aspect of the invention is that contrary to known brake bodies no additional adhesion mediator layers (adhesive layers) and / or Korrosionsschich th are required, which applied in the prior art in an additional step and / or process who need to.
  • the preparation of the friction surface to be coated can be carried out with the usual method in thermal spraying, the blasting of the surface to be coated, and there are no spe- essential measures such as the creation of a special len surface profile required.
  • a final mechanical post-processing of the coating produced can preferably take place after the thermal spraying. This is done before preferably with a tool with geometrically indeterminate edge, for example by grinding.
  • the upper surface roughness can be reworked to a depth that meets the requirements.
  • the described method with a correspondingly fine coating material it is possible to achieve a very fine surface roughness, where with depending on the requirements of the surface roughness of the friction surfaces a possible mechanical post-processing can be superfluous.
  • the coating of the brake body according to the invention has a particularly high adhesive strength.
  • the coating has a very high density with a higher binding enthalpy, which leads to a very good resistance to wear and / or corrosion. Time- and cost-intensive pre-treatment and adhesion promoter layers are superfluous.
  • the partial to full use of hydrogen as fuel is a world-conscious and ecological process in which, compared to the state of the art, less or no emissions (NoX, Co2, etc.) are produced.
  • the brake body according to the invention in particular for a vehicle which is manufactured or can be produced by the described method, it may preferably be a brake act for a disc brake or a brake drum for a drum brake.
  • the invention also relates to a method for producing a brake body with the steps:
  • the brake body according to the invention can be produced for a brake.
  • the braking device thus provided has improved adhesion between the coating and the base material of the base body.
  • the inventive method can be trained with further described in connexion with the braking body according to the invention paint.
  • Fig. 1 a schematic view of the various steps te a) to e) for the production of the brake body according to the invention, wherein
  • 1a is a schematic sectional view and enlarged view of the uncoated base body
  • 1 b shows a schematic sectional view and enlarged view of the base body after roughening or straightening
  • 1c shows a schematic sectional view of the main body after the possible heating
  • Fig. Id a schematic sectional view and an enlarged view of the main body after applying the coating Be
  • Fig. Le a schematic sectional view and enlarged view of the body after the aftertreatment is.
  • a base body to be coated 12 of a brake body 10 is shown, which is a brake disc for a disc brake of a motor vehicle in the water embodiment.
  • the base body 12 has on its outer circumference the friction surface 14 to be coated.
  • the main body 12 is made in this embodiment of gray iron by means of a conventional casting process.
  • a roughening of the Grundkör pers 12 in the region of the friction surface 14. This is preferably done using a blasting machine, in which the base body 12 is inserted into a receptacle and not covered to cover the areas and thus protected from the blasting , Thereafter, the base body 12 is rotated and roughened with a defined jet material and pressure by means of the blasting process.
  • the result of this beam processing is a "mountain profile" or “mountain and valley profile” of the friction surface 14. This can best be explained by the enlargement in FIG Fig. Lb) remove.
  • the roughness depth Rz is in this case determined by the blasting process, the blasting material or material, the pressure and the feed.
  • the desired roughness is defined as a function of the desired layer thickness. Vorlie ing jet particles can be removed by blowing off.
  • Fig. Lc is the possibility of heating the Grundkör pers 12 in the region of the friction surface 14 by means of the spray burner (without the addition of spray materials) shown.
  • the spray burner In order to assist the diffusion processes in the subsequent spraying should be heated to at least 200 ° C to about 1000 ° C. It should be noted that with increasing temperature, the diffusion processes are favored. This step is a way to improve liability even further. Basically, however, it should be noted that the adhesion in the described method is already well above the standard and this step is not required son only optional depending on the application or requirement profile of the brake body can be provided.
  • the coating 16 is applied to the base body 12 by means of a thermal spraying process, in this embodiment the high-speed flame spraying.
  • a thermal spraying process in this embodiment the high-speed flame spraying.
  • a material consisting of tungsten carbide / cobalt is used.
  • the application of the coating 16 takes place in several steps or layers until a desired layer thickness, for example, in the range of 50 ym to 400 ym is obtained.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Ceramic Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Braking Arrangements (AREA)

Abstract

La présente invention concerne un corps de freinage (10) destiné à un frein, comprenant un corps de base (12) qui présente une surface produite par rugosification sous la forme d'une surface de friction (14), ainsi qu'un revêtement (16) appliqué sur la surface de friction (14) à l'issue de la rugosification par un procédé de projection à chaud. Le corps de freinage selon l'invention présente une adhérence améliorée entre le revêtement et le matériau de base du corps de base. L'invention concerne en outre un procédé de fabrication d'un corps de freinage (10).
PCT/EP2019/061332 2018-05-15 2019-05-03 Corps de freinage et procédé de fabrication d'un corps de freinage WO2019219402A1 (fr)

Applications Claiming Priority (2)

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DE202018102703.4U DE202018102703U1 (de) 2018-05-15 2018-05-15 Bremskörper für ein Fahrzeug
DE202018102703.4 2018-05-15

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Cited By (1)

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CN112413012A (zh) * 2020-09-23 2021-02-26 中车戚墅堰机车车辆工艺研究所有限公司 一种复合材料制动盘

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DE202019107269U1 (de) 2019-12-30 2020-01-23 C4 Laser Technology GmbH Verschleiß- und Korrosionsschutzschicht aufweisende Bremseinheit
EP4278109A1 (fr) 2021-01-18 2023-11-22 C4 Laser Technology GmbH Procédé de fabrication d'un élément de freinage et élément de freinage
EP4278108A1 (fr) 2021-01-18 2023-11-22 C4 Laser Technology GmbH Procédé de production d'un élément de freinage et élément de freinage
EP4198159A1 (fr) * 2021-12-15 2023-06-21 Aesculap AG Instrument médical et son procédé de fabrication

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DE102011089125A1 (de) * 2011-12-20 2013-06-20 Robert Bosch Gmbh Bremskörper
DE102016200951A1 (de) * 2016-01-25 2017-07-27 Volkswagen Aktiengesellschaft Verfahren zum Erzeugen einer verschleiß- und/oder korrosionsfesten Beschichtung auf einer Reibfläche eines Bremskörpers sowie nach dem Verfahren herstellbarer Bremskörper

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DE102010048075A1 (de) * 2010-10-09 2012-04-12 Daimler Ag Bremsscheibe und Verfahren zu deren Herstellung
DE102011012320A1 (de) * 2011-02-25 2012-08-30 Daimler Ag Bremsscheibe und deren Herstellungsverfahren
DE102011089125A1 (de) * 2011-12-20 2013-06-20 Robert Bosch Gmbh Bremskörper
DE102016200951A1 (de) * 2016-01-25 2017-07-27 Volkswagen Aktiengesellschaft Verfahren zum Erzeugen einer verschleiß- und/oder korrosionsfesten Beschichtung auf einer Reibfläche eines Bremskörpers sowie nach dem Verfahren herstellbarer Bremskörper

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CN112413012A (zh) * 2020-09-23 2021-02-26 中车戚墅堰机车车辆工艺研究所有限公司 一种复合材料制动盘
CN112413012B (zh) * 2020-09-23 2023-06-23 中车戚墅堰机车车辆工艺研究所有限公司 一种复合材料制动盘

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