EP3619416A1 - Stahlkolben mit einer phosphat-schicht - Google Patents
Stahlkolben mit einer phosphat-schichtInfo
- Publication number
- EP3619416A1 EP3619416A1 EP18722516.4A EP18722516A EP3619416A1 EP 3619416 A1 EP3619416 A1 EP 3619416A1 EP 18722516 A EP18722516 A EP 18722516A EP 3619416 A1 EP3619416 A1 EP 3619416A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- phosphate layer
- piston
- steel
- steel piston
- layer
- 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.)
- Granted
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
- 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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
- C23C22/18—Orthophosphates containing manganese cations
-
- 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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
-
- 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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/82—After-treatment
- C23C22/83—Chemical after-treatment
-
- 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
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2080/00—Special pretreatment of the material to be lubricated, e.g. phosphatising or chromatising of a metal
Definitions
- the present invention relates to a steel piston
- Eating usually provided with a shaft coating.
- a bonded coating which contains one or more solid lubricants, eg graphite or M0S 2 .
- solid lubricants eg graphite or M0S 2 .
- the piston In order to ensure the adhesion of the bonded coating over the entire service life of the piston, the piston must be pretreated.
- a manganese phosphating is used, which is applied by means of dipping method.
- an interruption of the usual manufacturing process and manual handling of the piston is necessary. This can lead to contamination on the surface of the piston.
- the steel piston it is possible for the steel piston to be only neutral, before applying the lubricating varnish.
- this object is achieved by a special phosphating process and a steel piston with an available, amorphous phosphate layer.
- the invention relates to a steel piston, preferably a steel piston for an internal combustion engine, which comprises an amorphous phosphate layer at least in one region. Furthermore, the invention relates to a method for producing such a steel piston.
- amorphous phosphate layer means that the layer has an amorphous structure in plan view.
- Manganese phosphate or zinc phosphate layers with crystalline structure with crystalline structure.
- the amorphous structure of the layer affects the properties of the layer, e.g. their roughness and
- the method according to the invention comprises the following
- step (3) optionally forming a manganese phosphate layer.
- the amorphous phosphate layer formed according to the invention has capillaries and thereby enables a better
- the amorphous phosphate layer acts as a passivation layer, so that a renewed oxidation of the piston is avoided.
- a thin, amorphous phosphate layer can be applied.
- it may be thinner than a conventional, crystalline phosphate layer. This in turn allows lower manufacturing tolerances.
- the amorphous phosphate layer has a thickness of 0.05 ym to 5 ym, more preferably 0.1 ym to 3 ym.
- the amorphous phosphate layer can be applied to the entire piston or individual regions, for example the piston skirt or the pin bore.
- the layer is applied to the entire piston
- a lubricating varnish (2) may further be applied to the amorphous phosphate layer. If appropriate, in step (3) on the piston thus obtained
- the piston can also be coated exclusively with the lubricating varnish.
- the phosphoric acid-containing solution used according to the invention can be applied by spraying, so that the amorphous phosphate layer can be generated inline. By doing so leaves avoid manual handling of the piston, and the risk of contamination of the surface of the piston is reduced.
- the inventive method can be integrated into the process for producing the piston without great expense.
- the solution used in step (1) preferably contains a surfactant in addition to phosphoric acid (ortho-phosphoric acid). In this way, the wetting of the surface can be improved, so that a more uniform layer is formed. Further, the solution may contain other ingredients.
- Suitable nitrates e.g. Sodium nitrate, manganese nitrate and
- Zinc nitrate, and / or sulfonates proved.
- the nitrate, and / or sulfonates proved.
- the solution preferably has a pH of from 1 to 3.
- step (1) After completion of step (1), the solution, e.g. by rinsing, be removed from the surface of the flask.
- step (2) is carried out by a method known to the person skilled in the art.
- a manganese phosphate layer can subsequently be formed in a further step (3).
- This process can be carried out in a manner known to those skilled in the art.
- the treatment according to the invention of the steel piston leads to a better adhesion of the lubricating varnish.
- the lubricating varnish is preferably one
- Anti-friction varnish comprising a polymer matrix.
- a polymer matrix the usual starting materials for piston coatings, such as phenolic resins, epoxy resins, polyamide,
- Polyamide-imide and / or PTFE are used, preferred are phenolic resins and / or epoxy resins.
- a crosslinkable polymer is used as the matrix for the coating, then it is crosslinked after application.
- the crosslinking of the matrix can be effected thermally or by means of radiation, for example by UV or IR radiation.
- the bonded coating further particularly preferred
- Solid lubricant (s) preferably substances with a laminar crystallizing structure used, such as graphite, M0S2, WS2, -BN. Furthermore, polymers such as e.g. PTFE can be used.
- amorphous phosphate layer according to the invention can be improved, are e.g. in DE 10 2009 002 716 AI and 10 2009 002 715 AI described.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Treatment Of Metals (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL18722516T PL3619416T3 (pl) | 2017-05-05 | 2018-05-04 | Tłok stalowy z warstwą fosforanu |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017207591.0A DE102017207591A1 (de) | 2017-05-05 | 2017-05-05 | Stahlkolben mit einer Phosphat-Schicht |
| PCT/EP2018/061497 WO2018202849A1 (de) | 2017-05-05 | 2018-05-04 | Stahlkolben mit einer phosphat-schicht |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3619416A1 true EP3619416A1 (de) | 2020-03-11 |
| EP3619416B1 EP3619416B1 (de) | 2021-10-13 |
Family
ID=62116459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18722516.4A Active EP3619416B1 (de) | 2017-05-05 | 2018-05-04 | Stahlkolben mit einer phosphat-schicht |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20200102656A1 (de) |
| EP (1) | EP3619416B1 (de) |
| CN (1) | CN110892142B (de) |
| BR (1) | BR112019023182A2 (de) |
| DE (1) | DE102017207591A1 (de) |
| PL (1) | PL3619416T3 (de) |
| RU (1) | RU2769041C2 (de) |
| WO (1) | WO2018202849A1 (de) |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1083779A (en) * | 1965-09-08 | 1967-09-20 | Pyrene Co Ltd | Production of phosphate coatings on metal |
| IT1004936B (it) * | 1974-02-13 | 1976-07-20 | Mondial Piston Ec Spa | Pistone con cave per l alloggiamen to dei segmenti rivestite da uno strato di nichelio fosforo amorfo depositato cataliticamente |
| SE441105B (sv) * | 1976-04-05 | 1985-09-09 | Amchem Prod | Forfarande for framstellning av en amorf, lett, hart fastsittande fosfatbeleggning |
| GB2148950B (en) * | 1983-10-26 | 1987-02-04 | Pyrene Chemical Services Ltd | Phosphating composition and processes |
| US5597465A (en) * | 1994-08-05 | 1997-01-28 | Novamax Itb S.R.L. | Acid aqueous phosphatic solution and process using same for phosphating metal surfaces |
| DE4433946A1 (de) * | 1994-09-23 | 1996-03-28 | Henkel Kgaa | Phosphatierverfahren ohne Nachspülung |
| DE19629399B4 (de) * | 1996-07-20 | 2008-10-16 | Mahle Gmbh | Kolben für Verbrennungsmotoren mit einem Kolbenboden oder Kolbenoberteil |
| JP2000249063A (ja) * | 1999-02-26 | 2000-09-12 | Toyota Autom Loom Works Ltd | ピストン式圧縮機のピストン |
| JP2000313967A (ja) * | 1999-04-27 | 2000-11-14 | Sumitomo Metal Ind Ltd | 耐食性に優れた表面処理鋼板 |
| US20040118483A1 (en) * | 2002-12-24 | 2004-06-24 | Michael Deemer | Process and solution for providing a thin corrosion inhibiting coating on a metallic surface |
| DE102005055365A1 (de) * | 2004-12-10 | 2006-06-22 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor und Verfahren zur Beschichtung seiner Nabenbohrungen |
| EP1864048B1 (de) * | 2005-03-29 | 2013-07-17 | Nippon Steel & Sumitomo Metal Corporation | Schraubverbindung für stahlrohre |
| US7687098B1 (en) * | 2005-08-26 | 2010-03-30 | Charlie W. Chi | Chemical mechanical vapor deposition device for production of bone substitute material |
| DE102005042474A1 (de) * | 2005-09-07 | 2007-03-08 | Ks Aluminium-Technologie Ag | Beschichtung eines thermisch und erosiv belasteten Funktionsbauteil, sowie ein Trennmittel und ein Verfahren zur Herstellung der Beschichtung |
| JP5021396B2 (ja) * | 2007-08-24 | 2012-09-05 | 日本ピストンリング株式会社 | ピストンリング |
| JP2009052706A (ja) * | 2007-08-29 | 2009-03-12 | Nok Corp | ゴム部を一体に有する鉄鋼部品の製造方法 |
| TWI457433B (zh) * | 2008-01-30 | 2014-10-21 | Chemetall Gmbh | 將金屬表面施以一磷酸鹽層然後施以一潤滑劑層的方法 |
| DE102009002716A1 (de) | 2009-04-29 | 2010-11-11 | Federal-Mogul Nürnberg GmbH | Verschleißfester Gleitlack für die Beschichtung von Motorkolben |
| DE102009002715B4 (de) | 2009-04-29 | 2017-02-09 | Federal-Mogul Nürnberg GmbH | Verwendung eines wasserverdünnbaren Gleitlacks für die Beschichtung von Motorkolben |
| DE102012215666A1 (de) * | 2012-09-04 | 2014-03-06 | Schaeffler Technologies AG & Co. KG | Funktionsteil, insbesondere Lagerteil, mit reibungsreduzierender Beschichtung |
| DE102014001248A1 (de) * | 2014-02-03 | 2015-08-06 | Gkn Sinter Metals Engineering Gmbh | Pleuel-Kolben-Baugruppe mit einem Pleuel mit Kugelkopf |
| DE102014217040A1 (de) * | 2014-08-27 | 2016-03-03 | Bayerische Motoren Werke Aktiengesellschaft | Beschichtung für Metallbauteile, Verfahren zum Beschichten eines Metallbauteils, Kolben für Verbrennungskraftmaschinen und Kfz |
| RU156583U1 (ru) * | 2015-05-08 | 2015-11-10 | Федеральное государственное унитарное предприятие "Центральный институт авиационного моторостроения им. П.И. Баранова" | Поршень цилиндра двигателя внутреннего сгорания |
-
2017
- 2017-05-05 DE DE102017207591.0A patent/DE102017207591A1/de not_active Ceased
-
2018
- 2018-05-04 WO PCT/EP2018/061497 patent/WO2018202849A1/de not_active Ceased
- 2018-05-04 US US16/611,030 patent/US20200102656A1/en not_active Abandoned
- 2018-05-04 PL PL18722516T patent/PL3619416T3/pl unknown
- 2018-05-04 RU RU2019139407A patent/RU2769041C2/ru active
- 2018-05-04 EP EP18722516.4A patent/EP3619416B1/de active Active
- 2018-05-04 CN CN201880029961.1A patent/CN110892142B/zh not_active Expired - Fee Related
- 2018-05-04 BR BR112019023182A patent/BR112019023182A2/pt not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| PL3619416T3 (pl) | 2022-03-07 |
| CN110892142B (zh) | 2022-12-06 |
| RU2019139407A (ru) | 2021-06-07 |
| WO2018202849A1 (de) | 2018-11-08 |
| RU2769041C2 (ru) | 2022-03-28 |
| RU2019139407A3 (de) | 2021-10-06 |
| US20200102656A1 (en) | 2020-04-02 |
| DE102017207591A1 (de) | 2018-11-08 |
| CN110892142A (zh) | 2020-03-17 |
| BR112019023182A2 (pt) | 2020-05-19 |
| EP3619416B1 (de) | 2021-10-13 |
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