EP4409053A1 - Oxidationsschutz-schicht für motorkolben aus stahl oder einer eisenbasierten legierung - Google Patents
Oxidationsschutz-schicht für motorkolben aus stahl oder einer eisenbasierten legierungInfo
- Publication number
- EP4409053A1 EP4409053A1 EP22793695.2A EP22793695A EP4409053A1 EP 4409053 A1 EP4409053 A1 EP 4409053A1 EP 22793695 A EP22793695 A EP 22793695A EP 4409053 A1 EP4409053 A1 EP 4409053A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- titanate
- piston
- layer
- composition
- zirconate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003647 oxidation Effects 0.000 title claims abstract description 13
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title description 12
- 229910045601 alloy Inorganic materials 0.000 title description 10
- 239000000956 alloy Substances 0.000 title description 10
- 229910000831 Steel Inorganic materials 0.000 title description 8
- 239000010959 steel Substances 0.000 title description 8
- 229910052742 iron Inorganic materials 0.000 title description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000203 mixture Substances 0.000 claims abstract description 23
- 239000000049 pigment Substances 0.000 claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 17
- 238000002485 combustion reaction Methods 0.000 claims abstract description 9
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 8
- 238000010494 dissociation reaction Methods 0.000 claims description 7
- 230000005593 dissociations Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- PGTXKIZLOWULDJ-UHFFFAOYSA-N [Mg].[Zn] Chemical compound [Mg].[Zn] PGTXKIZLOWULDJ-UHFFFAOYSA-N 0.000 claims description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 4
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims description 2
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 claims description 2
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- ITNVWQNWHXEMNS-UHFFFAOYSA-N methanolate;titanium(4+) Chemical compound [Ti+4].[O-]C.[O-]C.[O-]C.[O-]C ITNVWQNWHXEMNS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- 229910000838 Al alloy Inorganic materials 0.000 claims 2
- 229910001297 Zn alloy Inorganic materials 0.000 claims 2
- 239000011248 coating agent Substances 0.000 abstract description 11
- 238000000576 coating method Methods 0.000 abstract description 11
- 239000010410 layer Substances 0.000 description 33
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229910000611 Zinc aluminium Inorganic materials 0.000 description 1
- 229910007746 Zr—O Inorganic materials 0.000 description 1
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- BSDOQSMQCZQLDV-UHFFFAOYSA-N butan-1-olate;zirconium(4+) Chemical compound [Zr+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] BSDOQSMQCZQLDV-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- BCWYYHBWCZYDNB-UHFFFAOYSA-N propan-2-ol;zirconium Chemical compound [Zr].CC(C)O.CC(C)O.CC(C)O.CC(C)O BCWYYHBWCZYDNB-UHFFFAOYSA-N 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 125000003698 tetramethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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
- 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
- C23C18/1216—Metal oxides
-
- 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
-
- 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
-
- 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/082—Coating starting from inorganic powder by application of heat or pressure and heat without intermediate formation of a liquid in the layer
- C23C24/085—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/01—Pistons; Trunk pistons; Plungers characterised by the use of particular materials
-
- 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
- F02F2200/00—Manufacturing
Definitions
- Anti-oxidation layer for engine pistons made of steel or an iron-based alloy
- the present invention relates to a coating for an engine piston made of steel or another iron-based alloy, the oxidation and possibly. reduces or prevents corrosion of the piston.
- Another way to reduce oxidation is to use special alloys with high chromium and nickel content.
- alloys are expensive and make surface treatment, such as manganese phosphating, more difficult.
- the application of a galvanic protective layer or a ceramic sprayed layer is complicated and associated with high costs.
- US Pat. No. 8,6288,827 describes a coating for metal parts which is intended to protect the surface from atmospheric corrosion at room temperature.
- the coating is obtained by applying a titanate or zirconate-containing composition and curing.
- a small amount of zinc, aluminum or a zinc-aluminum alloy can be added to the composition.
- the use of this coating for pistons in internal combustion engines or other parts that are exposed to high temperatures of up to 550° C. is not disclosed.
- a layer to the piston which can be obtained from a composition containing a titanate or a zirconate and which contains at least one metal pigment.
- a layer obtainable by means of a titanate or a zirconate can be improved if a metal pigment is added to this layer. In this way a layer is obtained which is suitable for the piston of an internal combustion engine.
- FIG. 1 shows micrographs of a coated and an uncoated piston after an engine running test.
- the invention consequently relates to a piston, in particular a piston for an internal combustion engine, made of steel or another iron-based alloy, with a layer that is obtainable from a titanate- or zirconate-containing composition being applied to at least one area of the piston containing at least one metal pigment. Furthermore, the present invention relates to a method for producing this layer and its use to prevent high-temperature oxidation or Hot gas oxidation of the piston.
- a layer which can be obtained from a titanate-containing composition preference is given to a layer which can be obtained from a titanate-containing composition.
- the titanate or zirconate contained in the composition is used as a precursor.
- a layer based on Ti-O- or Zr-O units formed.
- This dissociation process can be initiated after application of a suitable composition by exposure to moisture, including atmospheric moisture, or by the introduction of energy, for example by irradiation or heating. This dissociation process leads to hardening of the layer.
- the layer obtainable from the composition containing titanate or zirconate preferably contains 20 to 40 wt. -% titanium oxide or . 20 to 40 wt. -% zirconium oxide, based on the entire layer.
- the term "fully cured” refers on a layer that is obtained by applying with a spray gun and then heating in the oven at about 250 ° C for 30 minutes.
- the titanate or zirconate molecules "shrink" as a result of the partial or complete elimination of the organic residues, so that the layer produced can have cracks and pores. This leads to problems with the cohesion of the layer.
- R 1 , R 2 , R 3 and R 4 are each independently H or an organic radical; preferably H, a phenyl group or a C1-C6 alkyl group; and particularly preferably a phenyl group or a C1-C4 alkyl group.
- R 1 , R 2 , R 3 and R 4 may optionally have substituents, but they are preferably unsubstituted groups.
- M represents Ti or Zr, preferably Ti.
- n represents a natural number, preferably 1 to 4.
- a titanate which is selected from the group consisting of tetramethyl titanate, tetraisopropyl titanate, tetrabutyl titanate and tetraphenyl titanate.
- the zirconate is preferably selected from the group consisting of tetramethyl zirconate, tetraisopropyl zirconate, tetrabutyl zirconate and tetraphenyl zirconate.
- titanates and zirconates can also be used in the form of chelate complexes.
- At least one metal pigment is contained in the layer obtainable by means of the composition containing titanate or zirconate.
- Alloys based on zinc, magnesium or aluminum are particularly suitable as the metal pigment.
- Aluminum-magnesium and zinc-magnesium alloys are preferred.
- the metal pigment is used, for example, in the form of a powder, preferably a powder with a particle diameter of 50 ⁇ m or less.
- the layer according to the invention preferably has a thickness in the range from 5 to 100 ⁇ m, more preferably 10 to 50 ⁇ m, in particular 10 to 30 ⁇ m.
- the layer according to the invention can also be part of a multi-layer system. D. H .
- further layers can be applied to the piston in order to influence different properties of the piston. These layers can be applied under or on top of the layer according to the invention.
- the layer according to the invention is suitable for all steels and iron-based alloys that are usually used in pistons for internal combustion engines.
- a piston with the layer according to the invention can be produced by means of a method which comprises the following steps: a) applying a composition comprising at least one titanate or zirconate of the general formula (I) to the piston; b) applying at least one metal pigment to the bulb; c ) partial or total dissociation of the titanate or zirconate ; and d) curing the composition.
- steps a) and b) can be carried out individually or together.
- the composition containing titanate or zirconate and the metal pigment are preferably applied together.
- the metal pigment is particularly preferably added to the composition containing titanate or zirconate before it is applied to the piston.
- the metal pigment can be used, for example, in the form of a powder or a paste.
- titanate or the zirconate dissociates as described and the layer hardens.
- the layer according to the invention By using the layer according to the invention, the high-temperature oxidation or Hot gas corrosion of the piston can be reduced.
- a composition containing a titanate and a zinc-magnesium alloy pigment was applied by spraying onto a 42CrMo4 piston. The composition was then heated in an oven at approx. 250 ° C cured for 30 minutes . The coated piston and an uncoated piston were subjected to an engine running test for 516 hours, with the engine being operated alternately for 30 minutes at full load and 2 minutes at idle.
- FIG. 1 Grinding images of the two pistons after the end of the test are shown in FIG. 1 shown .
- an oxidation layer with a thickness of approx. 43 gm formed .
- the high-temperature oxidation hot gas corrosion
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Nanotechnology (AREA)
- Ceramic Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021210995.0A DE102021210995A1 (de) | 2021-09-30 | 2021-09-30 | Oxidationsschutz-Schicht für Motorkolben aus Stahl oder einer eisenbasierten Legierung |
| PCT/EP2022/076178 WO2023052215A1 (de) | 2021-09-30 | 2022-09-21 | Oxidationsschutz-schicht für motorkolben aus stahl oder einer eisenbasierten legierung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4409053A1 true EP4409053A1 (de) | 2024-08-07 |
Family
ID=83995420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22793695.2A Pending EP4409053A1 (de) | 2021-09-30 | 2022-09-21 | Oxidationsschutz-schicht für motorkolben aus stahl oder einer eisenbasierten legierung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12292012B2 (de) |
| EP (1) | EP4409053A1 (de) |
| CN (1) | CN118076766A (de) |
| DE (1) | DE102021210995A1 (de) |
| WO (1) | WO2023052215A1 (de) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5305726A (en) * | 1992-09-30 | 1994-04-26 | United Technologies Corporation | Ceramic composite coating material |
| FR2866029B1 (fr) | 2004-02-11 | 2006-05-26 | Dacral | Composition de revetement anti-corrosion en dispersion aqueuse comprenant un titanate et/ou un zirconate organique |
| DE102005006671A1 (de) | 2005-02-15 | 2006-08-17 | Ks Kolbenschmidt Gmbh | Schutzschicht gegen Heißgaskorrision im Verbrennungsraum einer Brennkraftmaschine |
| US20090098289A1 (en) | 2007-10-12 | 2009-04-16 | Deininger Mark A | Pig and Method for Applying Prophylactic Surface Treatments |
| JP6339118B2 (ja) * | 2015-04-08 | 2018-06-06 | アイシン精機株式会社 | 車両用機械部品およびピストン |
| EP3243878A1 (de) | 2016-05-10 | 2017-11-15 | Rembrandtin Lack GmbH Nfg.KG | Korrosionsschutz |
| US10731259B2 (en) * | 2016-11-04 | 2020-08-04 | Cummins Inc. | Pistons with thermal barrier coatings |
| US20190107045A1 (en) * | 2017-10-11 | 2019-04-11 | GM Global Technology Operations LLC | Multi-layer thermal barrier |
| ES2942851T3 (es) * | 2017-11-14 | 2023-06-07 | Doerken Ewald Ag | Revestimiento anticorrosión |
| US11168643B2 (en) * | 2018-02-21 | 2021-11-09 | Tenneco Inc. | Coating to reduce coking deposits on steel pistons |
| US10889723B2 (en) * | 2018-11-08 | 2021-01-12 | The United States Of America As Represented By The Secretary Of The Navy | Synergistic corrosion inhibitor compositions |
-
2021
- 2021-09-30 DE DE102021210995.0A patent/DE102021210995A1/de active Pending
-
2022
- 2022-09-21 CN CN202280066774.7A patent/CN118076766A/zh active Pending
- 2022-09-21 EP EP22793695.2A patent/EP4409053A1/de active Pending
- 2022-09-21 US US18/697,476 patent/US12292012B2/en active Active
- 2022-09-21 WO PCT/EP2022/076178 patent/WO2023052215A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021210995A1 (de) | 2023-03-30 |
| WO2023052215A1 (de) | 2023-04-06 |
| US12292012B2 (en) | 2025-05-06 |
| CN118076766A (zh) | 2024-05-24 |
| US20240401544A1 (en) | 2024-12-05 |
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