EP3292087A1 - Pièce métallique et son procédé de fabrication - Google Patents

Pièce métallique et son procédé de fabrication

Info

Publication number
EP3292087A1
EP3292087A1 EP16724697.4A EP16724697A EP3292087A1 EP 3292087 A1 EP3292087 A1 EP 3292087A1 EP 16724697 A EP16724697 A EP 16724697A EP 3292087 A1 EP3292087 A1 EP 3292087A1
Authority
EP
European Patent Office
Prior art keywords
enamel
metal part
glaze
layer
part according
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.)
Withdrawn
Application number
EP16724697.4A
Other languages
German (de)
English (en)
Inventor
Wolfgang KÜHN
Annett Bretschneider
Rolf Gosch
Bernhard Stauder
Jurij GONTAREV
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.)
Nemak SAB de CV
Original Assignee
Nemak SAB de CV
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 Nemak SAB de CV filed Critical Nemak SAB de CV
Publication of EP3292087A1 publication Critical patent/EP3292087A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D5/00—Coating with enamels or vitreous layers
    • C23D5/08—Applying enamels non-uniformly over the surface
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C03C8/14—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C03C8/14—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
    • C03C8/20—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions containing titanium compounds; containing zirconium compounds
    • 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
    • C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D13/00—After-treatment of the enamelled articles
    • 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
    • C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D5/00—Coating with enamels or vitreous layers
    • C23D5/02—Coating with enamels or vitreous layers by wet methods
    • 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
    • C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D7/00—Treating the coatings, e.g. drying before burning
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2207/00—Compositions specially applicable for the manufacture of vitreous enamels
    • C03C2207/08—Compositions specially applicable for the manufacture of vitreous enamels for light metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/10—Pistons  having surface coverings
    • F02F3/12—Pistons  having surface coverings on piston heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2251/00—Material properties
    • F05C2251/04—Thermal properties
    • F05C2251/042—Expansivity

Definitions

  • the invention relates to a metal part, which has a surface which is thermally or mechanically higher in use than its environment is charged, said surface at least in sections with a glaze or to protect against thermal or mechanical stresses
  • Enamel layer is occupied.
  • the metal part is a cast part cast from a metallic cast material.
  • the invention relates to a method for producing a metal part, in particular casting, with a
  • Components made of lightweight materials such as aluminum,
  • enamel coatings are glass layers which, above all with regard to the melting temperature and the coefficients of thermal expansion, are provided for them
  • Carrier materials were adjusted. They connect the
  • enameled workpieces can be machined by bending, sawing or drilling and can additionally be provided with functional nanoscale sol-gel layers, for example to supplement the hard, scratch-resistant enamel layer with a temperature-resistant non-stick effect.
  • Resilience further optimized enamel coating can be with the in DE 10 2013 108 428 AI and
  • the invention has this object _ by a with the features mentioned in claim 1
  • the internal combustion engine has one in use
  • the glaze or enamel layer contains, based on the enamel frit used to form the enamel layer, 2 to 35% by weight of an admixture of particles which consist of at least one material from the group "glass, organic plastics,
  • Glaze or enamel layer layers consisting of
  • inorganic compounds consist of fused together oxides of alkali and
  • the layers may additionally inorganic or organic compounds in the form of fibers, such as. As SiC or C fibers, and other enamel typical, known in the art additives. In the production of the glaze or
  • Enamel layers are ground the premelted compounds used as frit with water.
  • the fibers are optionally added.
  • particles are additionally added to the slip, preferably after its production, which contribute a minimized coefficient of thermal expansion
  • Die_s_e._Par-tike.l- consist of materials belonging to the group "glass, organic plastics, synthetically produced oxides and mixtures of such oxides, wherein the production of the oxides has optionally taken place via a melt" belong.
  • the materials in question are characterized by having a very low maximum coefficient of thermal expansion of not more than 50 x 10 -7 K -1 and a high melting temperature of not less than 500 ° C
  • Particulate addition provided according to the invention is particularly suitable for materials which have a
  • Powders for the purposes of the invention must also have a high melting temperature.
  • the amount of admixture added according to the invention is determined by the weight of the enamel frit provided to form the enamel layer. That is, should the enamel or glaze coating of 100 grams
  • Baking can be carried out in a conventional manner by bringing the metal part in total to the required temperature. If this results in the course of processing of the metal part, can be used for drying and baking a process in the respective metal part due to existing heat for drying become. This is suitable, for example, for castings in which the cast part, which is still cast, is coated in accordance with the invention. Similar possibilities arise when the metal part is a thermoformed, in particular hot-forged, component. Also, the drying and baking can be completed in the course of a heat treatment, which passes through the metal part to adjust its mechanical and other properties.
  • Glaze layer as a result of addition according to the invention additionally admixtures of particles of materials, in which a particularly low coefficient of thermal expansion is combined with a high melting temperature, is also insensitive to temperature changes, if this
  • Temperature changes take place at high speed. Such extreme temperature changes occur, for example, when quenching metal parts after a
  • Quenchant e.g. Water, spray or liquid nitrogen
  • cooling rates of more than 2 K / s, typically at least 5 K / s
  • Glaze layer thus allows on different
  • the invention is suitable for coating metal parts
  • Ferrous material as well as for_dle_es_chi.cht.ung_von-T-ei-len -, - which are made of a light metal casting material, in particular an Al-casting material.
  • the adhesion of the coating to the respective metal substrate is ensured by the reactivity between the base material and the enamel.
  • the additional addition according to the invention then ensures the required
  • At least 8% by weight, in particular at least 10% by weight is.
  • An optimal utilization of the properties of the particulate powder admixed according to the invention results when the content of powder particles based on the weight of the enamel frit is at most 30% by weight, in particular at most 20% by weight.
  • pre-ground ceramic particles as an admixture.
  • particles have a positive effect with respect to the thermal shock resistance of the enamel or
  • Glaze coating consisting of a fineness of
  • Glaze layer then particularly effective if it is 50-1000 ⁇ thick, with an optimal effect at the same time optimized durability of the layer at a
  • Glaze layer has a thermal conductivity of less than
  • the particles added according to the invention as admixtures can, but do not have to consist of a material of pure sort. Rather, mixtures can also be used
  • refractory materials and in particular material particles from the group of magnesium aluminum silicates are suitable as material for the particles added as admixture of the coating according to the invention.
  • Lithium glass ceramics Quar_zgläs_er _, _ . ZirkojLaluminLums-ili-ka-te or alumo-silicates.
  • MgO Al 2 0 3 -Si02 magnesium aluminum silicates
  • M2A2S5 cordierite
  • a 3 S 2 mullite
  • particles consist of components of these systems are used, in particular particles of Si0 2 in amorphous or crystalline structure or A1 2 0 3 in Korundmodtechnische.
  • zirconium aluminum silicates Zr0 2 -Al 2 0 3 -Si0 2
  • ZSA 3 zirconium mullite
  • ZS zirconia
  • Lithium ceramics or technical glasses such as quartz glass, also have minimized expansion coefficients at high melting temperatures and can be in
  • Porcelain materials which is a typical
  • the admixtures provided according to the invention can be added in commercially available form.
  • the materials used to prepare the admixture which are suitable here are known to the person skilled in the art, as are the methods for suitable comminution of the relevant materials (see, for example, Gerald Routschka, Hartmut Wuthnow [Ed.] "Practical Guide Refractory Materials"), 5th edition , Vulkan Verlag, ISBN 13: 978-3802731617).
  • the organic plastics which are suitable for the purposes according to the invention are described, for example, in the AVK - Industrievealism Reinforced Plastics Association "Handbuch Faserverbundkunststoffe: Kunststoff, Dahl, etc.
  • the coating according to the invention is particularly suitable for protecting those surfaces of a metal part which are thermally stressed thermally during use by a gas forming or flowing through it.
  • Such surfaces may be present in a space or channel of the metal part in which, in use, correspondingly hot gas forms or is flowed through in use of hot gas.
  • Such conditions arise for example in metal parts, in particular castings, for
  • the exhaust gas-carrying manifolds of the exhaust system of an internal combustion engine be formed from a sheet metal material.
  • the glaze or enamel layer according to the invention can be a corrosion protection that protects the insert against a chemically aggressive liquid or gaseous medium.
  • the typical application for the invention is a cylinder head produced as a casting for a
  • the invention is also suitable for a housing for a turbocharger, which is arranged in the exhaust gas stream of an internal combustion engine and whose exhaust gas flowed through channel in accordance with the invention is coated.
  • the coating according to the invention makes it possible to decisively increase the power of an internal combustion engine.
  • the areas surrounding the combustion chamber such as pistons, block running surface and cylinder head combustion chamber roof surfaces can be coated in accordance with the invention.
  • Heat losses are one step closer to the goal of an "adiabatic engine.” Furthermore, it may be expedient to have the intake ports of the internal combustion engine at least
  • the coating according to the invention is to be embodied as an enamel layer, then it is suitable as the basis for this
  • Enamel powder is particularly suitable for covering in operation thermally and mechanically highly loaded metallic surfaces and is present as a mixture containing 100 parts of a glass powder, optionally 10 - 22 parts of coarse glass grains, which are larger than the particles of the glass powder, 0.1 -. 7 , 5 parts of ceramic fibers, glass fibers or carbon fibers, and alternatively to each other or in combination with each other, 10-2 parts of a powdery oxidic compound of a light metal or 1-5 parts of a powder of a
  • Metal part which has a surface in use thermally or mechanically higher than its surroundings
  • Heat treating the metal part wherein the heat treatment optionally comprises cooling at a cooling rate higher than the cooling rate achieved by cooling in still air, in particular cooling on agitated air;
  • the invention is suitable for any metal parts that are exposed to the conditions of use discussed above. These include on metal base by forming produce metal parts as well as metal parts that are made by applying a primary molding process, such as casting or forging.
  • the invention thus provides a metal part and a
  • a particular advantage of the coating according to the invention consists in the fact that it protects highly effectively against thermal, corrosive or mechanical loads without the need for additional components. Tolerance problems, as would be the case with molded parts are avoided in this way.
  • the possible by the invention minimized layer thickness while optimized protection function allow optimized in terms of weight savings interpretation and
  • the baking of the coating can be particularly desirable
  • Solution annealing process to be completed as it is usually passed through in the production of castings for internal combustion engines.
  • the invention is based on
  • a cylinder head cast from a conventional Al casting alloy for a high compression diesel engine is annealed at 500 ° C for 30 minutes and then cooled to room temperature.
  • the oxide reaction products in particular ⁇ 1 2 0 3 , and the other incurred in the course of annealing
  • the surfaces concerned are stained with dilute nitric acid HN0 3 .
  • This mixture has been ground in a porcelain mill.
  • Enamel frit 20 wt .-% Codierit been added in powder form, which has a thermal expansion coefficient of
  • the enamel layer thus obtained showed good adhesion to the Al casting substrate and high insensitivity even under extreme temperature changes
  • Turbocharger housing for an internal combustion engine has been annealed at a temperature of 500 ° C for 30 minutes and then cooled to room temperature. The one with
  • Enamel layer to be coated inner surfaces of the turbocharger housing are then oxidic
  • Slip mixture has also been ground in a porcelain mill to the desired grinding fineness.
  • the mixture is based on the weight of the enamel frit contained in the mixture 17.5 wt .-% quartz glass powder with a
  • the slip obtained is filled in the turbocharger housing and distributed by rotating the housing evenly on the surfaces to be coated.
  • the enamel layer thus obtained showed a good adhesion to the AI even under extreme temperature changes. Cast substrate and a high insensitivity to cracking.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Glass Compositions (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

La présente invention concerne une pièce métallique qui présente une surface qui est, lors de l'utilisation, sollicitée plus fortement de manière thermique ou mécanique que son environnement, laquelle surface est garnie au moins dans certaines régions d'une couche de glaçure ou d'émail, et son procédé de fabrication. Grâce à la pièce métallique selon l'invention, il n'existe aucune restriction particulière lors du traitement thermique et une protection optimale des surfaces respectivement fortement sollicitées lors de l'utilisation est cependant assurée. Cet objectif est atteint par le fait que la couche de glaçure ou d'émail contient 2 à 35 % en poids d'un mélange de particules rapporté à la fritte d'émail utilisée pour la formation de la couche d'émail, lesquelles particules sont constituées d'au moins un matériau du groupe "verres, plastiques organiques, mélanges d'oxydes synthétiques ou masses fondues", lequel matériau présente respectivement un coefficient de dilatation thermique d'au maximum 50 x 10-7 K-1 et une température de fusion d'au moins 500 °C.
EP16724697.4A 2015-05-07 2016-05-06 Pièce métallique et son procédé de fabrication Withdrawn EP3292087A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015107171.1A DE102015107171A1 (de) 2015-05-07 2015-05-07 Metallteil und Verfahren zu seiner Herstellung
PCT/IB2016/000587 WO2016178079A1 (fr) 2015-05-07 2016-05-06 Pièce métallique et son procédé de fabrication

Publications (1)

Publication Number Publication Date
EP3292087A1 true EP3292087A1 (fr) 2018-03-14

Family

ID=56072359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16724697.4A Withdrawn EP3292087A1 (fr) 2015-05-07 2016-05-06 Pièce métallique et son procédé de fabrication

Country Status (6)

Country Link
US (1) US20180148845A1 (fr)
EP (1) EP3292087A1 (fr)
CN (1) CN107635938A (fr)
DE (1) DE102015107171A1 (fr)
TW (1) TWI703106B (fr)
WO (1) WO2016178079A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10288081B1 (en) * 2018-04-30 2019-05-14 PumpWorks, LLC Power end for a single-stage end suction centrifugal pump

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507687A (en) * 1966-03-09 1970-04-21 James A Laird Glass coated ferrous article and method of making the same
US4196004A (en) * 1978-03-22 1980-04-01 Manfred Berretz Corrosion resistant glasses that contain chemical additives for application over metal substrates
DE2829993A1 (de) * 1978-07-07 1980-01-17 Reimbold & Strick Emaillierte abgasanlagen von verbrennungsmotoren
DE4136115C1 (fr) * 1991-11-02 1993-01-28 Schott Glaswerke, 6500 Mainz, De
US7410672B2 (en) * 1999-10-12 2008-08-12 Aos Holding Company Water-resistant porcelain enamel coatings and method of manufacturing same
US7604867B2 (en) * 2005-12-20 2009-10-20 General Electric Company Particulate corrosion resistant coating composition, coated turbine component and method for coating same
DE102006028763B4 (de) * 2006-06-23 2013-02-07 Schott Ag Alkali- blei- und cadmiumfreie Glasfritte, Verfahren zu deren Herstellung und deren Verwendung, Verfahren zur Herstellung einer keramischen Farbe und daraus erhältliche keramische Farbe
DE102007025465B3 (de) * 2007-05-30 2008-09-25 Schott Ag Niedrig aufschmelzendes bleifreies Lotglas und dessen Verwendung
DE102010025286B4 (de) 2010-06-28 2013-08-01 Nemak Linz Gmbh Leichtmetallgussteil für einen Verbrennungsmotor
ITMI20121966A1 (it) * 2012-11-19 2014-05-20 3V Tech Spa Materiale composito a matrice vetrosa
DE102013108428A1 (de) 2013-08-05 2015-02-05 Tenedora Nemak, S.A. De C.V. Emaillepulver, Metallbauteil mit einem mit einer Emaillebeschichtung versehenen Flächenabschnitt und Verfahren zum Herstellen eines solchen Metallbauteils

Also Published As

Publication number Publication date
TWI703106B (zh) 2020-09-01
DE102015107171A1 (de) 2016-11-10
CN107635938A (zh) 2018-01-26
TW201702204A (zh) 2017-01-16
US20180148845A1 (en) 2018-05-31
WO2016178079A1 (fr) 2016-11-10

Similar Documents

Publication Publication Date Title
EP3030528B1 (fr) Poudre d'émaillage, composant métallique possédant une portion de surface dotée d'un revêtement émaillé et procédé de fabrication d'un tel composant métallique
DE60012605T2 (de) Silizium enthaltendes Substrat mit Calciumaluminiumsilikat-Wärmedämmschicht
EP0984839B1 (fr) Materiau a gradient d'indice metal-ceramique, produit realise a partir dudit materiau et procede pour produire un materiau a gradient d'indice metal-ceramique
EP0119499A1 (fr) Culasse de cylindre et procédé de fabrication
DE102006056209A1 (de) Panzermaterial und Verfahren zu dessen Herstellung
WO2008071184A2 (fr) Matériau composite en métal et céramique et procédé pour sa préparation
EP3484838B1 (fr) Rouleau pour four à rouleaux, comprenant au moins un revêtement sur la surface
DE102005036394A1 (de) Thermoschock- und korrosionsbeständiger Keramikwerkstoff auf der Basis eines zirkondioxidfreien feuerfesten Oxides und Verfahren zu seiner Herstellung
EP3097298A1 (fr) Pièce coulée et insert destiné à une telle pièce coulée
WO2016178079A1 (fr) Pièce métallique et son procédé de fabrication
DE3707396C2 (fr)
DE102009006778B4 (de) Verfahren zur Herstellung einer flamm- oder plasmagespritzten thermoschock- und korrosionsbeständigen Keramikschicht auf Basis von Al2O3-TiO2-ZrO2
EP2723916B1 (fr) Élément fabriqué pour la technique de coulée et procédé d'application d'une couche de protection contre la corrosion
EP0707188B1 (fr) Support en SiC
EP3201459B1 (fr) Piston, moteur à pistons avec un tel piston et véhicule automobile avec un tel moteur à pistons
DE102009037540A1 (de) Gepresste, kohlenstoffhaltige bzw. kohlenstoffgebundene Feuerfesterzeugnisse auf Aluminiumoxidbasis und Verfahren zu ihrer Herstellung
EP0101911A2 (fr) Revêtements céramiques résistants aux chocs thermiques
WO1997021644A1 (fr) Procede pour produire du nitrure de silicium fritte
DE102007037592B3 (de) Halbzeug aus Refraktärmetallen, insbesondere aus Molybdän oder Titan, welches mit einer Schutzschicht versehen ist und Verfahren zur Herstellung der Schutzschicht
EP1072573A1 (fr) Procédé de fabrication d'une pièce réfractaire et brique céramique de chambre de combustion
DE202014102781U1 (de) Gleitlager für eine Brennkraftmaschine
DE102016103866B3 (de) Verfahren zum Wärmebehandeln eines aus einem Metallwerkstoff bestehenden Bauteils mit mindestens einem mit einer Glasur- oder Emaille-Beschichtung beschichteten Flächenabschnitt
DE10007780B4 (de) Gesintertes Produkt auf Basis von Siliciumnitrid und dessen Verwendung
DE102014202135A1 (de) Verfahren zum Beschichten einer Bohrung und Zylinderblock eines Verbrennungsmotors
DE202015101383U1 (de) Gussteil und Einsatz für ein solches Gussteil

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20171207

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIN1 Information on inventor provided before grant (corrected)

Inventor name: GONTAREV, JURIJ

Inventor name: STAUDER, BERNHARD

Inventor name: BRETSCHNEIDER, ANNETT

Inventor name: GOSCH, ROLF

Inventor name: KUEHN, WOLFGANG

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20210304

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20210715