EP3287546A1 - Système anticalaminage multi-couche pour aciers durcissables par pression - Google Patents

Système anticalaminage multi-couche pour aciers durcissables par pression Download PDF

Info

Publication number
EP3287546A1
EP3287546A1 EP17185771.7A EP17185771A EP3287546A1 EP 3287546 A1 EP3287546 A1 EP 3287546A1 EP 17185771 A EP17185771 A EP 17185771A EP 3287546 A1 EP3287546 A1 EP 3287546A1
Authority
EP
European Patent Office
Prior art keywords
layer
protective layer
layers
protective
steels
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Withdrawn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
EP17185771.7A
Other languages
German (de)
English (en)
Inventor
Volodymyr Kuznetsov
Wolfram FÜRBETH
Sigrid Benfer
Alexander Tenié
Wolfgang Bleck
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.)
DECHEMA -Forschungsinstitut
Rheinisch Westlische Technische Hochschuke RWTH
Original Assignee
DECHEMA -Forschungsinstitut
Rheinisch Westlische Technische Hochschuke RWTH
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 DECHEMA -Forschungsinstitut, Rheinisch Westlische Technische Hochschuke RWTH filed Critical DECHEMA -Forschungsinstitut
Publication of EP3287546A1 publication Critical patent/EP3287546A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • 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
    • C23C28/04—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 of inorganic non-metallic material
    • C23C28/042—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 of inorganic non-metallic material including a refractory ceramic layer, e.g. refractory metal oxides, ZrO2, rare earth oxides
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
    • C23C18/1208—Oxides, e.g. ceramics
    • C23C18/1212—Zeolites, glasses
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/1229—Composition of the substrate
    • C23C18/1241—Metallic substrates
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/125—Process of deposition of the inorganic material
    • C23C18/1254—Sol or sol-gel processing
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/125—Process of deposition of the inorganic material
    • C23C18/1262—Process of deposition of the inorganic material involving particles, e.g. carbon nanotubes [CNT], flakes
    • C23C18/127—Preformed particles
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/125—Process of deposition of the inorganic material
    • C23C18/1295—Process of deposition of the inorganic material with after-treatment of the deposited inorganic material

Definitions

  • the present invention relates to the field of protective layers for steels, in particular press-hardenable steels.
  • a problem with this process is the scaling of the components, which occurs immediately as soon as the heated component (850 ° -950 ° C.) is taken out of the protective gas-containing furnace and comes into contact with atmospheric oxygen. If the component is austenitized under an air atmosphere, the surface is heavily scaled as low as 540 ° C.
  • the resulting scale layer is inhomogeneous, brittle, peels off and offers RD 42016 / A1: AH no basis for subsequent processes such as welding, cathodic dip painting, etc. Therefore, the oxide layer is removed by blasting prior to further processing of the component.
  • a protective layer for steels, in particular press-hardenable steels, characterized in that it comprises at least two layers, both of which are predominantly composed of an oxide material, and wherein the next layer to the steel (hereinafter referred to as "first layer”) Glass transition temperature of ⁇ 400 ° C and ⁇ 500 ° C, and the outer layer (hereinafter referred to as “second layer”) has a glass transition temperature of ⁇ 500 ° C and ⁇ 900 ° C.
  • the glass transition temperature can be measured in particular by dilatometry of the sintered layered body.
  • the term "predominantly consist” within the meaning of the present invention includes and / or in particular comprises a wt .-% proportion of ⁇ 90% by weight, more preferably ⁇ 95% by weight and most preferably ⁇ 97% by weight.
  • the term "predominantly consisting of an oxide material” means that the layer in question contains no or ⁇ 3% by weight, more preferably ⁇ 1% by weight organic residues of organic precursors (such as silanes, etc.).
  • the present protective layer is not limited to two layers but may be composed of multiple layers.
  • first layer refers to all layers that meet the above conditions, the second as well.
  • the first layer has a glass transition temperature of ⁇ 450 ° C and ⁇ 480 ° C. This has proved advantageous in many applications of the present invention.
  • the second layer has a glass transition temperature of ⁇ 600 ° C and ⁇ 750 ° C. This has proved advantageous in many applications of the present invention.
  • the first and / or second layer is produced from a respective starting layer by a sintering process.
  • starting layer is thus understood to mean a non-sintered layer from which the respective final layer, which forms part of the protective layer according to the invention, can be produced by sintering.
  • the first and / or second starting layer comprises nanoparticulate oxide particles. Preference is given to the average size of the oxidic nanoparticles in a layer between ⁇ 5 nm to ⁇ 100 nm, with a regular size distribution of the particles is preferred.
  • the first and / or the second layer and / or the respective starting layers of starting materials from the group comprising oxides, hydroxides, carbonates, nitrates, silicates and salts of organic acids of Al, As, B , Ba, Ca, Ce, Co, Cr, Cu, Eu, Fe, K, La, Li, Mg, Mo, Mn, Na, Ni, P, Sb, Sm, Ti, V, W, Zn, Zr and mixtures generated from it.
  • starting material (s) means and / or comprises in particular that the starting layer in question is produced from this substance (s), it usually being possible to form mixed compounds / mixed oxides or similar compounds.
  • the educts of the first and / or second layer also contain additives selected from the group consisting of organic inhibitors, plasticizers, modifiers of the nanoparticle surfaces.
  • additives selected from the group consisting of organic inhibitors, plasticizers, modifiers of the nanoparticle surfaces
  • the added proportion (in% by weight) of Al 2 O 3 , SiO 2 , TiO 2 , and ZrO 2 in the first layer is preferably ⁇ 50%. It has thus been found that the desired properties of the first layer can often be set particularly easily.
  • the added proportion (in% by weight) of Al 2 O 3 , SiO 2 , TiO 2 , and ZrO 2 in the second layer is preferably ⁇ 75%. It has been found in this way that the desired properties of the second layer can be adjusted very often so often.
  • the total thickness of the protective layer is from ⁇ 2 ⁇ m to ⁇ 10 ⁇ m, preferably ⁇ 4 ⁇ m to ⁇ 6 ⁇ m It turned out that the protective layer usually has excellent protection properties, but at the same time allows good deformability and handling.
  • the ratio between the thickness of the first and the second layer is preferably from ⁇ 0.8 to ⁇ 1.2. This has proven to be advantageous for many applications within the present invention.
  • the present invention also relates to the use of a protective layer according to the invention as a scale protection system for steels.
  • scale protection system means or includes the protection of the steel from the formation of thick layers of oxidation products (scale layers) at temperatures up to 950 ° C. for periods of up to 5 minutes, more preferably up to 10 minutes.
  • the present invention also relates to a process for producing one or more starting layers of the protective layer according to the invention, which process comprises a sol-gel process.
  • sol-gel process means or includes in particular a process using polymeric and / or particulate sols and colloidal dispersions, whereby combinations of sols and dispersions are also possible.
  • the initial protective layer is preferably applied by (possibly repeated) dip coating.
  • this comprises a thermal sintering step which is carried out after the layer application and by which the final protective layer is thus produced.
  • FIG. 1 shows a diagram indicating the increase in mass over time for two steel samples which have been coated with a protective layer according to the invention, as well as two comparative samples.
  • Bindzil 50 / 80® (SiO 2 nanoparticles) is slowly added at 40 ° C. with rapid stirring. These nanoparticles have a corona of a surfactant (1,2-benzisothiazol-3- (2H) -one) that protects the particles from coagulation. 5 ml of water with dissolved Al (NO 3 ) 3 and Ca (NO 3 ) 2 are slowly added to this mixture with vigorous stirring. Later, Levasil 300/30 ® (SiO 2 nanoparticles) is added. At the end, the pH is controlled again, this time within 9-13. The lower it is, the longer the dispersion can be stored. The result is a milky-white, slightly viscous solution. On prolonged standing, however, it tends to form a phase separation, which can be easily eliminated by shaking.
  • a surfactant (1,2-benzisothiazol-3- (2H) -one
  • Levasil 300/30 ® is added .
  • the pH is controlled, which should be within 9-13.
  • protective layers A and B are applied to two steel samples (22MnB5, 35 x 15 x 1.5mm 3 ).
  • the steel samples are blasted with SiO 2 microparticles (70-110 ⁇ m) and they are cleaned in an ethanol bath in an ultrasonic bath (100 W) for 3 minutes of residues of the sand particles.
  • the activation of the samples by immersion in a Nital solution (2 wt .-% HNO 3 in ethanol) for at least 5 seconds.
  • the samples are rinsed with ethanol and dried quickly with hot air (up to 350 ° C).
  • the coating of the substrate is carried out by immersion at room temperature.
  • the pull-out speed is up to 50 mm / s.
  • the dispersion for the steel-proximate first layer is applied by dipping, followed by rapid drying with hot air (up to 350 ° C). A crack-free, slightly white-cloudy and dry layer is obtained.
  • the dispersion for the outer, second layer is applied by immersion, followed by rapid drying with hot air (up to 350 ° C). A crack-free, slightly white-cloudy and dry layer is obtained.
  • Layers A and B are resistant to abrasion and stable under normal conditions against air oxidation.
  • the steel samples on which the protective layers A and B are applied are sintered in a preheated oven (900-950 ° C) in air-atmosphere.
  • Table 2 shows the chemical compositions as well as the glass transition temperatures and the expansion coefficients of the protective layers A and B after sintering.
  • Fig. 1 is the mass increase (as a measure of the oxidation) compared to an uncoated 22MnB5 steel sheet and a AlSi-coated 22MnB5 steel sheet (Usibor 1500 ® ) shown.
  • the protective layers of the invention layer thickness 6.0 ⁇ 0.5 microns
  • the Usibor 1500 has a significantly greater thickness (AlSi layer about 25-30 microns).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Nanotechnology (AREA)
  • Dispersion Chemistry (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
EP17185771.7A 2016-08-24 2017-08-10 Système anticalaminage multi-couche pour aciers durcissables par pression Withdrawn EP3287546A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016115746.5A DE102016115746A1 (de) 2016-08-24 2016-08-24 Mehrschichtiges Zunderschutzsystem für presshärtbare Stähle

Publications (1)

Publication Number Publication Date
EP3287546A1 true EP3287546A1 (fr) 2018-02-28

Family

ID=59713781

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17185771.7A Withdrawn EP3287546A1 (fr) 2016-08-24 2017-08-10 Système anticalaminage multi-couche pour aciers durcissables par pression

Country Status (2)

Country Link
EP (1) EP3287546A1 (fr)
DE (1) DE102016115746A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3974180A1 (fr) 2020-09-28 2022-03-30 Volkswagen Aktiengesellschaft Procédé de fabrication d'un élément en tôle d'acier moulé à chaud et trempé à la presse

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020107749A1 (de) 2020-03-20 2021-09-23 Peter Amborn Verfahren zur Vermeidung der Oxidation der Oberfläche eines metallischen Substrats sowie metallisches Substrat hergestellt nach dem Verfahren

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007015635A1 (de) * 2007-03-31 2008-10-02 Schaeffler Kg Beschichtung eines Bauteils aus gehärtetem Stahl und Verfahren zum Aufbringen der Beschichtung
DE102007038215A1 (de) * 2007-08-13 2009-02-19 Nano-X Gmbh Verfahren zur Herstellung einer aktiven Korrosionsschutzbeschichtung auf Bauteilen aus Stahl
WO2011144603A1 (fr) * 2010-05-20 2011-11-24 Rheinisch-Westfälische Technische Hochschule Aachen Couche à base de nanoparticules servant à protéger des aciers contre le calaminage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006056427B4 (de) 2006-11-28 2016-01-21 Nano-X Gmbh Verfahren zum Aufbringen eines Beschichtungsmaterials auf ein Substrat und Verwendung des Verfahrens
DE102008019785A1 (de) 2008-04-18 2009-10-22 Itn Nanovation Ag Verfahren zum Herstellen einer korrosionsstabilen, gasdichten Beschichtung und Verwendung der Beschichtung
RS54157B1 (en) 2012-12-17 2015-12-31 Henkel Ag & Co. Kgaa MULTI-PHASE METHOD OF COATING STEEL BEFORE THERMO
DE102015204802A1 (de) 2015-03-17 2016-09-22 Magna International Inc. Beschichtetes Stahlbauteil, Verfahren zur Herstellung des Stahlbauteils und Herstellungsanlage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007015635A1 (de) * 2007-03-31 2008-10-02 Schaeffler Kg Beschichtung eines Bauteils aus gehärtetem Stahl und Verfahren zum Aufbringen der Beschichtung
DE102007038215A1 (de) * 2007-08-13 2009-02-19 Nano-X Gmbh Verfahren zur Herstellung einer aktiven Korrosionsschutzbeschichtung auf Bauteilen aus Stahl
WO2011144603A1 (fr) * 2010-05-20 2011-11-24 Rheinisch-Westfälische Technische Hochschule Aachen Couche à base de nanoparticules servant à protéger des aciers contre le calaminage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
YEKEHTAZ M ET AL: "Effect of nano-particulate sol-gel coatings on the oxidation resistance of high-strength steel alloys during the press-hardening process", MATERIALS AND CORROSION, WILEY, vol. 63, no. 10, 1 October 2012 (2012-10-01), pages 940 - 947, XP001579026, ISSN: 0947-5117, [retrieved on 20120807], DOI: 10.1002/MACO.201206729 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3974180A1 (fr) 2020-09-28 2022-03-30 Volkswagen Aktiengesellschaft Procédé de fabrication d'un élément en tôle d'acier moulé à chaud et trempé à la presse

Also Published As

Publication number Publication date
DE102016115746A1 (de) 2018-03-01

Similar Documents

Publication Publication Date Title
DE102010022112A1 (de) Nanopartikelbasiertes Zunderschutzsystem
DE112015002494B4 (de) Brennstoffzellen-Separatormaterial und Verfahren zum Herstellen des Materials
EP2414562B1 (fr) Élément de construction en acier pourvu d'un dépôt anticorrosion, et son procédé de fabrication
DE3048691C2 (fr)
DE102010022272B4 (de) Verwendung eines Emaille-Nanoverbundwerkstoffs zur Beschichtung eines Werkzeugs für das Warmformen von Metall
DE102016114549B4 (de) Abriebfeste kupfer-basierte legierung, plattierschicht, und ventilsystemelement und gleitelement für eine verbrennungsmaschine
DE2740398A1 (de) Zweifachueberzug fuer den schutz gegen thermische beanspruchungen und korrosion
EP2881480A1 (fr) Piston intégré pour moteurs à pistons rotatifs
DE112015004097T5 (de) Magnetischer pulverkern, pulver für magnetische kerne und verfahren zu deren herstellung
EP3645757B1 (fr) Procédé destiné à fabriquer une pièce en acier pourvue d'un revêtement métallique et pièce en acier
DE102020131993A1 (de) Pressgehärteter hochleistungsstahl
EP2460595A2 (fr) Dispositif et procédé de fabrication d'un substrat contenant du magnésium revêtu d'au moins une couche de protection contre la corrosion
EP3287546A1 (fr) Système anticalaminage multi-couche pour aciers durcissables par pression
DE112007000544T5 (de) Titanmaterial und Abgasrohr für Motor
DE102020131989A1 (de) Pressgehärtete hochleistungsstahlanordnung
EP2215285B1 (fr) Phosphatation au zirconium de pièces métalliques, en particulier en fer
AT392088B (de) Bad fuer die herstellung von ueberzuegen auf metallblechen mit hoher stanzbarkeit
DE2713932B2 (de) Verfahren zur Herstellung einer korrosionsbeständigen Deckschicht auf rostfreiem Stahl
DE102018102624A1 (de) Verfahren zur Herstellung eines Stahlbandes mit verbesserter Haftung metallischer Schmelztauchüberzüge
EP2673393B1 (fr) Revêtement protecteur pour des composants de la technique aérospatiale et leur fabrication
DE102020202171A1 (de) Verfahren zur Herstellung eines oberflächenveredelten Stahlblechs und oberflächenveredeltes Stahlblech
WO2014037072A1 (fr) Revêtements contenant du mo sur des outils pour trempe directe sous presse
DE102022115094A1 (de) Verfahren zum Herstellen einer beschichteten weichmagnetischen Legierung
DE102009024802B3 (de) Verwendung einer keramischen Schicht sowie Verfahren zur Erzeugung einer solchen Schicht
DE102017214527A1 (de) Verfahren zur Beschichtung von warmumzuformenden Stahlflachprodukten

Legal Events

Date Code Title Description
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: THE APPLICATION HAS BEEN PUBLISHED

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

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: 20180424

RBV Designated contracting states (corrected)

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

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: 20190201

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20200221

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: 20200703