US20150017430A1 - Component with a metallurgically bonded coating - Google Patents

Component with a metallurgically bonded coating Download PDF

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Publication number
US20150017430A1
US20150017430A1 US14/384,731 US201314384731A US2015017430A1 US 20150017430 A1 US20150017430 A1 US 20150017430A1 US 201314384731 A US201314384731 A US 201314384731A US 2015017430 A1 US2015017430 A1 US 2015017430A1
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US
United States
Prior art keywords
layer
coating
component
melted
metallurgically bonded
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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.)
Abandoned
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US14/384,731
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English (en)
Inventor
Goetz Matthaeus
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.)
Thermico & Co KG GmbH
Original Assignee
Thermico & Co KG GmbH
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Filing date
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Assigned to THERMICO GMBH & CO. KG reassignment THERMICO GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MATTHAEUS, GOETZ
Publication of US20150017430A1 publication Critical patent/US20150017430A1/en
Abandoned legal-status Critical Current

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Classifications

    • C23C4/124—
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • C23C4/105—
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • C23C4/11—Oxides
    • C23C4/127—
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/129—Flame spraying
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/134—Plasma spraying
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal

Definitions

  • the invention relates to a component having a coating that is metallurgically bonded as well as thermally sprayed on and re-melted.
  • the invention relates to a method for the production of a metallurgically bonded coating, which is thermally sprayed onto a surface of a component and re-melted.
  • Metallurgically bonded coatings in the production of which the advantages of thermal spraying are combined with those of laser re-melting, demonstrate high-quality wear-protection and corrosion-protection properties.
  • Industrial implementation takes place in such a manner that after the coating, which is present in the form of an IN 625 HVOF layer, for example, is applied to a surface of a component, such as a turbine blade, individual melting lines are produced by means of the movement of a concentrated circle and an approximately circular, rectangular or ellipsoid point of light.
  • the movement devices of the bean guides required for this purpose require great precision, which is dependent on the geometry of the melting point, the requirements of the overlap of the melting lines, and on the required reproducibility of the production of the melting line.
  • a metallurgically bonded layer of the type mentioned initially is disclosed, for example, by GB 10 39 633, whereby re-melting of a thermally sprayed-on layer takes place by means of a laser apparatus that guides a point-shaped point of light over the sprayed-on layer and melts the latter.
  • both the spray ply, in each instance, and the entire layer are re-melted by means of the laser.
  • Improved mechanical properties of the coating result from this; in particular, the mechanical adhesion of the thermal spray layer is improved by means of the re-melting.
  • Metallurgically bonded coatings of the type mentioned initially are also the topic of a recently published work that discusses inherent stresses of IN 625 HVOF layers applied to steel and TI6AI4V, which layers have been re-melted by means of lasers. In this connection, inherent tensile stresses were found in the re-melted IN 625 layer.
  • the publication shows the difficulties in achieving non-critical stress states, i.e. neutral stress and pressure clamping, by means of laser re-melting. A CO 2 laser with a round laser spot was used, which was guided over the component surface at a frequency of 200 Hz, over a length of 126 mm (Arif, A. F. M., Yilbas, B. S., Surface Engineering, Volume 25, No. 3, April 2009, pp. 249-256).
  • HVOF WC—CrC—Ni layers having a thickness of 280 ⁇ m were heat-treated and compacted by means of a laser.
  • the laser spot selected was an oval geometry 5 mm ⁇ 4 mm with an overlap of 30% at a displacement speed of 400 mm/min, at 400 Watts laser power (Journal of the Korean Physical Society, Volume 54, No. 3; March 2009).
  • the invention provides that the metallurgically bonded coating is provided with at least one thermal spray layer.
  • the core idea of the invention is to provide the metallurgically bonded coating with a cover ply that is thermally sprayed on. Surprisingly, it was shown that during expansion of a component to which a metallurgical coating is bonded, beyond the value permissible for the cover ply, tearing of the cover ply alone occurs. In the coating according to the invention, therefore no continuation of the crack into the re-melted coating takes place. As a result, a tight corrosion-protection layer continues to exist, which protects the base material, i.e. the material of the component, from corrosion attack.
  • Concrete components according to one of claims 1 to 10 are double cylinders and screws that are used in plastics-processing extrusion machines.
  • two screws convey and compact thermoplastic plastic material such as PVC, among others, for example, under high pressure and temperature.
  • the plastic materials have abrasive additives such as glass fibers, wood flour, and pigments mixed into them.
  • the proportion of abrasively acting additives can amount to more than 50 vol.-%.
  • the double cylinders and screws are subject to great wear; furthermore, the screws support themselves on the interior cylinder surface, which leads to great surface pressure and milling stress of the surfaces.
  • the decomposition of PVC can occur and hydrochloric acid can be formed, which causes corrosion on cylinder and screw.
  • a hard-metallic layer on the basis of metal-bonded tungsten carbide such as WC—CoCr or WC—CrC—Ni, applied by means of the HVOF method, is suitable as a coating for withstanding abrasive wear.
  • HVOF layers on the basis of WC have no metallurgical bond, but rather adhere on the basis of a mechanical adhesion mechanism.
  • the mechanical adhesion is predominantly influenced by the kinetic energy of the particles and the hardness of the base material.
  • the HVOF layers When applied to medium-hard base materials with 40-45 HRC, the HVOF layers achieve a shear strength of 250-350 MPa, and in the case of hard base materials with 55-57 HRC, a lower shear strength of 50-150 MPa.
  • the coating must be applied to the base material with great adhesion and a shear strength of 250 MPa, so that the coating is able to withstand the mechanical stress. Furthermore, a supporting zone with a depth of at least 0.5 mm and a hardness of 55 HRC must be present underneath the coating, so that the metal-bonded WC layer is not pressed into the base material by means of the high surface pressure and rolling action.
  • the proposed coating system allows a shear strength of >250 MPa of the hard-metallic coating on a supporting layer in the base material having a hardness of 55 HRC.
  • a first, thin, medium-hard layer is applied to a Ni base alloy and re-melted by means of a laser, and subsequently, a WC-HVOF coating is applied.
  • the metallurgically bonded layer is, according to the invention, a medium-hard coating having a hardness of 40-45 HRC, composed of a Ni base alloy, for example of the NiCrMo type, with components of boron, silicon, and carbon.
  • NiCrMo—BSiC coating that is tight and protects against corrosion.
  • Hardening of the base material underneath the first layer composed of the NiCrMo—BSiC alloy takes place as the result of the laser re-melting.
  • a hardness zone having a hardness of 55-57 HRC is produced at a depth of approx. 0.5-2 mm.
  • the first re-melted layer is thin, 5-30 ⁇ m, and has an average hardness of 40-45 HRC.
  • the coating according to the invention allows a hard-metallic HVOF coating having a shear strength of 250 MPa, applied to the inner surface of the double cylinder and the cylinder surface of the screw, which brings about hardening of the base material by means of the laser re-melting of the first thermally applied coating, and allows a sufficient supporting effect of the coating.
  • the coating allows protection from hydrochloric acid sub-surface corrosion by means of the laser re-melted NiCrMo—BSiC alloy, if cracks in the HVOF WC coating occur as the result of the great mechanical stress.
  • the coating according to the invention is not only corrosion-resistant, impact-resistant, and crack-resistant, but also has great tolerance to expansion.
  • Applications can be components having a complex geometry, such as, for example, turbine blades, ball valves, screw rotors or the inner surfaces of pipes, such as cylinders.
  • a thin coating by means of thermal spraying i.e. a coating having a thickness of preferably between 5 and 300 ⁇ m, on the surface of a component.
  • an oxidation-resistant and/or corrosion-resistant material serves as the material of the surface.
  • Re-melting of the thermally applied coating preferably takes place by means of laser technology.
  • the layer is preferably a plasma layer composed of oxide ceramic material or an HVOF layer composed of metal-bonded carbides.
  • Plasma spraying and high-velocity flame spraying are variants of thermal spraying that can particularly be used.
  • the thermal spray layer is re-melted.
  • laser technology is a proven tool for re-melting.
  • the advantage of the re-melted layer is the formation of an alloy in the metallurgically bonded, thermally sprayed-on and re-melted coating that lies underneath.
  • a further advantageous embodiment of the invention provides that the layer is a plasma layer composed of oxide ceramic material.
  • This layer is advantageously characterized in that it has great hardness and low heat conductivity, so that this layer is particularly suitable for heat-insulating components.
  • the layer composed of metal-bonded carbides is, in particular, an HVOF layer composed of WC—CrC—Ni.
  • a layer is produced that has great hardness and impact resistance.
  • it is electrically conductive and demonstrates great heat conductivity.
  • FIG. 1 a conventional component that is provided with a metallurgically bonded as well as thermally sprayed on and re-melted coating, and
  • FIGS. 2 a to 2 b a component according to the invention with and without crack formation.
  • FIG. 1 shows a conventional component that is provided with a coating 3 .
  • the coating 3 is metallurgically bonded to the surface 2 of the component 1 and re-melted. Previously, the coating 3 was thermally sprayed onto the surface 2 of the component 1 .
  • the component shown in FIG. 1 is a screw rotor.
  • the thickness of the coating 2 amounts to 5 ⁇ m to 300 ⁇ m.
  • the metallurgically bonded coating 3 is provided with a thermal spray layer 4 , as is furthermore evident from FIG. 2 a .
  • the layer 4 the thickness of which amounts to approx. 30 ⁇ m, is a layer that has been thermally sprayed onto the metallurgically bonded coating 3 .
  • the layer 4 is a plasma layer composed of an oxide ceramic material.
  • the layer can also be an HVOF layer composed of WC—CrC—Ni.
  • FIG. 2 b The advantage of the layer structure from FIG. 2 a is illustrated by FIG. 2 b . If crack formation occurs due to increased stress on the component, the crack formation occurs only in the layer 4 . As is evident from FIG. 1 b , the crack 5 extends only in the layer 4 , without having any continuation in the metallurgically bonded coating 3 .
  • the present invention is not restricted, in terms of its embodiment, to the exemplary embodiment indicated above. Instead, a number of variants is possible, which make use of the solution shown also in embodiments of a different type.
  • the layer 4 can also have a thickness between 5 ⁇ m and 300 ⁇ m, preferably 5 ⁇ m and 150 ⁇ m, for reasons of cost reduction particularly preferably 5 ⁇ m to 30 ⁇ m.
  • the coating 3 can be composed of a hot-gas-oxidation-resistant material such as MGAlY, or of a corrosion-resistant material such as NiGMo.
  • the carbon is present in excess and is released as graphite. This promotes the suppression of n-carbides that cause brittleness.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating By Spraying Or Casting (AREA)
US14/384,731 2012-03-13 2013-03-11 Component with a metallurgically bonded coating Abandoned US20150017430A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102012102087.6 2012-03-13
DE201210102087 DE102012102087A1 (de) 2012-03-13 2012-03-13 Bauteil mit einer metallurgisch angebundenen Beschichtung
PCT/EP2013/054901 WO2013135638A1 (de) 2012-03-13 2013-03-11 Bauteil mit einer metallurgisch angebundenen beschichtung

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US20150017430A1 true US20150017430A1 (en) 2015-01-15

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US14/384,731 Abandoned US20150017430A1 (en) 2012-03-13 2013-03-11 Component with a metallurgically bonded coating

Country Status (6)

Country Link
US (1) US20150017430A1 (enExample)
EP (1) EP2825681A1 (enExample)
JP (1) JP2015518085A (enExample)
CA (1) CA2867192A1 (enExample)
DE (1) DE102012102087A1 (enExample)
WO (1) WO2013135638A1 (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160348971A1 (en) * 2014-10-02 2016-12-01 Nippon Steel & Sumitomo Metal Corporation Hearth roll and manufacturing method therefor
CN108220860A (zh) * 2017-12-21 2018-06-29 中国科学院兰州化学物理研究所 一种梯度复合耐磨耐蚀涂层的制备方法
CN109554656A (zh) * 2018-12-13 2019-04-02 西安交通大学 一种常温大气氛围下致密陶瓷涂层的制备方法和系统
CN113260730A (zh) * 2018-12-14 2021-08-13 霍加纳斯股份有限公司 覆层、尤其是用于制动盘、制动鼓和离合器盘的覆层，用于盘式制动器的制动盘或用于鼓式制动器的制动鼓或者用于离合器的离合器盘，盘式制动器或者鼓式制动器或者离合器，用于制造覆层、尤其是用于制动盘、制动鼓和离合器盘的覆层的方法，以及覆层的用途
EP3971137A4 (en) * 2019-05-13 2022-07-13 Sumitomo Electric Industries, Ltd. MOLYBDENUM CARBIDE POWDER

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EP2871257A1 (de) * 2013-11-11 2015-05-13 Siemens Aktiengesellschaft Verfahren zum Beschichten mit anschließendem Umschmelzverfahren
CN104388887B (zh) * 2014-11-20 2017-01-04 西安交通大学 一种重载齿轮表面复合梯度涂层及其制备方法
CN109266997B (zh) * 2018-10-30 2020-10-09 广东技术师范学院 一种适用于高温环境的金属工件双层涂层及其制作方法
CN117255872A (zh) * 2021-12-16 2023-12-19 日本活塞环株式会社 喷镀被膜、滑动构件及活塞环

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US20110227590A1 (en) * 2010-03-16 2011-09-22 Eaton Corporation Corrosion-resistant position measurement system and method of forming same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160348971A1 (en) * 2014-10-02 2016-12-01 Nippon Steel & Sumitomo Metal Corporation Hearth roll and manufacturing method therefor
US10088236B2 (en) * 2014-10-02 2018-10-02 Nippon Steel & Sumitomo Metal Corporation Hearth roll and manufacturing method therefor
CN108220860A (zh) * 2017-12-21 2018-06-29 中国科学院兰州化学物理研究所 一种梯度复合耐磨耐蚀涂层的制备方法
CN109554656A (zh) * 2018-12-13 2019-04-02 西安交通大学 一种常温大气氛围下致密陶瓷涂层的制备方法和系统
CN113260730A (zh) * 2018-12-14 2021-08-13 霍加纳斯股份有限公司 覆层、尤其是用于制动盘、制动鼓和离合器盘的覆层，用于盘式制动器的制动盘或用于鼓式制动器的制动鼓或者用于离合器的离合器盘，盘式制动器或者鼓式制动器或者离合器，用于制造覆层、尤其是用于制动盘、制动鼓和离合器盘的覆层的方法，以及覆层的用途
US20210396291A1 (en) * 2018-12-14 2021-12-23 Höganäs Ab (Publ) Coating, in particular for brake discs, brake drums and clutch discs, brake disc for a disc brake or brake drum for a drum brake or clutch disc for a clutch, disc brake or drum brake or clutch, method for producing a coating in particular for brake discs, brake drums and clutch discs, and use of a coating
EP3971137A4 (en) * 2019-05-13 2022-07-13 Sumitomo Electric Industries, Ltd. MOLYBDENUM CARBIDE POWDER

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Publication number Publication date
DE102012102087A1 (de) 2013-09-19
JP2015518085A (ja) 2015-06-25
WO2013135638A1 (de) 2013-09-19
EP2825681A1 (de) 2015-01-21
CA2867192A1 (en) 2013-09-19

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