EP3414358A1 - Metallisches bauteil mit reibungsvermindernder oberflächenbeschichtung - Google Patents
Metallisches bauteil mit reibungsvermindernder oberflächenbeschichtungInfo
- Publication number
- EP3414358A1 EP3414358A1 EP17712046.6A EP17712046A EP3414358A1 EP 3414358 A1 EP3414358 A1 EP 3414358A1 EP 17712046 A EP17712046 A EP 17712046A EP 3414358 A1 EP3414358 A1 EP 3414358A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- precursor
- plasma
- protective layer
- organic
- organic protective
- 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- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/62—Plasma-deposition of organic layers
-
- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/26—Deposition of carbon only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/60—Deposition of organic layers from vapour phase
-
- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/50—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges
- C23C16/513—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using plasma jets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/10—Metallic substrate based on Fe
- B05D2202/15—Stainless steel
Definitions
- the invention relates to a metallic component with a friction-reducing surface coating, in particular also with a protective coating against mechanical damage, as well as a method for carrying out a surface coating and for removing the surface coating in a later process step. Finally, the invention relates to a device for carrying out the method.
- individual components are generally connected to larger components and / or assemblies, for example by screwing, clamping, and / or pressing. The components are brought into direct mechanical contact with each other.
- friction-reducing lubricants and lubricants such as oils or emulsions
- lubricants such as oils or emulsions
- the desired protective effect is based on avoiding a direct surface contact between the connecting elements by the formation of a closed film.
- the problem is, however, when the lubrication used no longer offers a closed lubricating or protective film due to an uneven distribution, too high punctiform load or already heavily deformed or flattened microstructures of the surfaces.
- the sometimes high Nachbearbeitungsaufpole from practice, in ⁇ example, for the correction of interference fit damage show the inadequate effectiveness of previously used solutions.
- oil residues at the assembly and / or at the workplace serve as an undesired collection point for sheared microparticles from the process or environmental contaminants such as dust particles lead to increasing pollution, so that regular cleaning processes are required in the process.
- Object of the present invention is therefore to overcome the disadvantages of the prior art and in particular a means for - even temporary - surface protection and / or to reduce the surface roughness and / or the coefficient of friction for the technique mentioned in the introduction. This object is achieved by the subject matter of the present ⁇ invention as disclosed in the claims and the description.
- the subject of the present invention is a metallic component with at least a part of the
- a particular advantage of the proposed technique is that the layer and / or the protective effect tailored particularly simple manner, that can be applied locally on the component in de ⁇ finierter thickness with enough good adhesion and sliding.
- mosphddruckplasmaer Wegungsmodule inaccessible Stel ⁇ len of the surface can be coated by using suitable therefor atm.
- the plasma generation ⁇ module can be easily used as a compressed air gun.
- the organic protective layers proposed here are less sensitive, more temperature-resistant, have consistent sliding properties at different temperatures and are easily removable again.
- a single or multi-part module is understood herein to which a plasma can be ⁇ he attests. This may, for example, egg ⁇ ne plasma to an electrode configuration with at least one or more electrodes and / or act to another plasma source.
- the plasma generation module is configured to generate a spatially limited plasma. Compared to a plasma which extends substantially over the entire inner surface of a plasma pressure chamber, this has the advantage that the area to be coated is adjustable, wherein a plasma nozzle such as a compressed air gun is manageable. In addition, in the case of a coating, the activation of the precursor can take place directly in the region of the surface to be coated.
- the plasma generation module comprises, for example, a plasma nozzle with which an atmospheric plasma jet can be generated.
- the plasma nozzle for generating an atmo ⁇ spherical plasma jet is established.
- the plasma nozzle comprises a precursor, by which a predetermined precursor with or without process gas and / or ambient air as plasma on the surface of a tool and / or a metallic component or on parts thereof can be applied.
- the me ⁇ - metallic component is locally by plasma polymerization under atmospheric conditions, ie without additional equipment and / or time, with a thin, organic
- Protective layer in the nanometer range so basically provided with a layer thickness less than 1 ym, being used as coating material cost-effective organic precursors, in particular ⁇ special gaseous at room temperature unsaturated carbon compounds, ie with carbon-carbon multiple ⁇ bonds.
- the advantage of a polymeric organic protective layer applied by atmospheric pressure plasma over a conventionally applied oil-based protective layer is not only the layer thickness but also the nature of the layer.
- the organic protective layer which was applied by means of plasma, a robust nature, because it shows at least equivalent effectiveness against the described scoring and / or scratching despite the small layer thickness in tests.
- structure-preserving coated means, for example, that when using a precursor having a carbon-silicon ratio of, for example, 6 to 2, atmospheric pressure plasma coating forms a layer on the metallic component, which always still a ratio of
- a dense layer with little pores, little cracks and a good degree of crosslinking or Schichtzusammen conception can be formed.
- the surface of the metallic structure shows a thermal conductivity in the range of 10 to 150 W / mK, a heat dissipation of the deposited from the atmosphere, a ⁇ rend ruck-plasma molecules or parts of molecules takes place, which promotes the formation of a stable protective layer with good layer holds together.
- An organic or organometallic protective layer produced with atmospheric pressure plasma lies, for example, in one
- layer thicknesses in the range of 80 nm or less, in particular from 50 to 70 nm it is also possible for the absorption characteristics of the layer to influence the color.
- an organic protective layer on a stainless steel surface, which was applied with acetylene precursor and under atmospheric pressure plasma, an absorption in the range between 400 nm and 600 nm wavelength, ie in the visible range and a yellow-brownish color.
- the plasma generation module can be mobile and can be used independently of other machines.
- the atmospheric plasma beam is preferably generated by electric discharge in a working gas, insbeson ⁇ particular in the plasma.
- the atmospheric plasma jet is generated by a generated with a high-frequency RMS voltage arc discharge - depending on the method of viewing also bow-like discharge - in a working gas.
- Under a high-frequency high voltage is typically a voltage of 1 to 100 kV, in particular from 1 to 50 kV, preferably 1 to 50 kV, at a frequency of 1 to 150 kHz, in particular from 10 to 80 kHz, preferably from 10 to 65 kHz, particularly preferably understood from 10 to 50 kHz.
- the plasma can also ⁇ discharges at lower voltage, for example, in the range of a real power of less than 500W, in particular also in the range of 300W, for example in the range of 200 to 300 W to be operated.
- an effective voltage of about 1 kV and an effective current of 0.3 A are present.
- a plasma jet is generated, which on the one hand has a high reactivity and on the other hand a relatively low temperature. Due to the high reactivity, an effective treatment of the surfaces or an effective activation of the precursor and thus an effective and uniform coating or cleaning can be achieved. Due to the low temperature of the plasma jet ande ⁇ hand, damage to the surface can be avoided.
- the metallic component in particular in of surface the metallic component itself act as Ge ⁇ counter-electrode of the plasma generation module.
- the component can be placed in particular to a fixed potential, for example to ground.
- Coating can be moved counter electrode such, for example, together with the Plasmaerzeu ⁇ supply module for the surface treatment or surface-.
- the counter electrode may be insbesonde ⁇ re designed as part of the plasma generation module.
- a high frequency voltage is applied between an electrode of such Plasmaerzeu ⁇ supply module and a counter electrode, causing ei ⁇ ner direct discharge between the electrode and counter electrode.
- a discharge is in contrast to a dielectric barrier discharge understood, in which the electrode and the counter electrode are not electrically isolated from each other so that UNMIT ⁇ nent discharges between the electrode and the counter electrode are possible.
- the discharges between the electrode and the counter electrode may be, in particular arc-like high-frequency discharges, skipped in the individual discharge filaments from the electrode to the counter electrode ⁇ or vice versa.
- a process gas stream flows in the region of the direct discharges between the electrode and the counter electrode.
- the plasma generating module includes an electrode and a process gas supply, wherein the electrode thereto is turned ⁇ aimed to be supplied from a voltage source with a cryfrequen ⁇ th high voltage, and wherein said process gas conduit adapted to make, for example, also laterally moving, Process gas flow to the area of the electrode.
- a moving process gas stream is understood to mean that the process gas stream has a velocity component in
- the process gas guide can have, for example, a ring of bores inclined obliquely in the circumferential direction, through which an inflowing process gas stream becomes a rotating process gas stream.
- the supply line of the precursor is arranged movably, in particular to a ⁇ delivery conduit for a carrier gas.
- a kon ⁇ tinuous and uniform or metered supply of the precursor gas is possible so that a uniform coating of the desired surfaces can be achieved.
- Precursor can also be introduced in gaseous or liquid form through a precursor feed line connected to the plasma generation module.
- the precursor with such a Precursorzu ein, in particular a precursor lance, led into the area of the plasma ⁇ who.
- a precursor inlet allows the precursor to be introduced into the plasma at a defined location and thus to achieve, for example, a spatial separation of the center of the discharges and the activation zone for the precursor.
- an embodiment of the device has a precursor feed, which is set up to guide a precursor into the region of a plasma generated with the plasma generation module.
- the apparatus can have a precursor feed line which is set up to lead a precursor to the surface of the metallic component by means of a carrier gas.
- the metallic component by the treatment with plasma in particular ⁇ with atmospheric pressure plasma with a friction-reducing coating, in particular an organic
- Protective layer in the nanometer range that is provided with a Schichtdi ⁇ cke smaller lOOOnm or less 1 ym.
- a coating which is in the range between 5 nm and 1000 nm, for example between 50 nm and 500 nm, in particular between 100 nm and 400 nm, especially before Trains t ⁇ between 200 nm and 300 nm.
- the plasma generation module after completion of the friction-demanding process step to remove the organic
- the plasma generated by the nozzle is preferably a plasma discharge obtained by a corona discharge, by a dielectric barrier discharge or by an arc-like discharge.
- a precursor is understood as meaning a substance which is suitable for forming a coating on the surface of a metallic component.
- the precursor may be a chemical compound that yields the desired coating material by polymerization or other chemical reaction.
- the plasma can also provide a necessary activation energy available, which is a chemical reaction of the precursor, the ⁇ special for polymerization, is required.
- a precursor may be an organic compound, in particular a hydrocarbon-containing compound or an organometallic compound.
- a precursor may simply be gasoline and / or diesel oil.
- hydrocarbon ⁇ substances can be used as precursors include aliphatic and / or cyclic.
- the precursor can be present, for example, in liquid or gaseous form and be used with or without process gas.
- a metal component for example, organometallic compounds, in particular silicon-organic compounds such as alkylfunktionelle silanes such as HMDSO: hexamethyldisiloxane, TEOS, VTMS: vinyltrimethoxysilane, OMCTS: octamethyltetracyclosiloxane ;
- organometallic compounds in particular silicon-organic compounds such as alkylfunktionelle silanes such as HMDSO: hexamethyldisiloxane, TEOS, VTMS: vinyltrimethoxysilane, OMCTS: octamethyltetracyclosiloxane ;
- hydrocarbons in particular hydrocarbons having at least one carbon-carbon multiple bond; short-chain hydrocarbons, such as methane; unsaturated hydrocarbon ⁇ substances, such as acetylene, ethene; short-chain hydrocarbons which are gaseous at room temperature, as well as any desired cycloaromatics, cycl
- the metallic component is cleaned by treatment with atmospheric pressure plasma without precursor of the friction-reducing protective coating in the nanometer range.
- a precursor is not necessary in this purification phase while working in air.
- the high-bay ⁇ active plasma under atmospheric conditions leads to an oxidation of the organic protective layer and removes the ⁇ se. Another wet cleaning of the surface is no longer necessary.
- the organic protective layer on the finished product is generally no longer visible to the human eye, the material applied by the atmospheric plasma is still very likely to be detectable.
- the material applied by the atmospheric plasma is still very likely to be detectable.
- micro ⁇ scopic examination can be checked whether an organic protective layer according to the present invention was present. The reason for this is that full atmospheric pressure plasma cleaning would be technically straightforward, but would require overly long treatment times since the material is more difficult to remove upon microactivities of the metal surface.
- o precursor acetylene about 40 L / h
- Target range Plasma with active power approximately 300 W, RMS voltage approx. 1 kV, RMS current 0.3 A,
- the invention relates to a metallic component with a friction-reducing surface coating, in particular also with a protective coating against mechanical damage, and to a method for carrying out a surface coating.
- a metallic component with a friction-reducing surface coating in particular also with a protective coating against mechanical damage
- a method for carrying out a surface coating to reduce the occurring through friction and ReibungsC ⁇ during a machining process damage and loss of energy is proposed to provide a plasma generating ⁇ module, can be coated by the selected surfaces of the metallic component with an organic protective coating in the nanometer range.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Vapour Deposition (AREA)
- Plasma Technology (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016204447.8A DE102016204447A1 (de) | 2016-03-17 | 2016-03-17 | Metallisches Bauteil mit reibungsvermindernder Oberflächenbeschichtung, Verfahren zur Herstellung und Vorrichtung zur Durchführung des Verfahrens |
PCT/EP2017/055801 WO2017157833A1 (de) | 2016-03-17 | 2017-03-13 | Metallisches bauteil mit reibungsvermindernder oberflächenbeschichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3414358A1 true EP3414358A1 (de) | 2018-12-19 |
Family
ID=58360967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17712046.6A Withdrawn EP3414358A1 (de) | 2016-03-17 | 2017-03-13 | Metallisches bauteil mit reibungsvermindernder oberflächenbeschichtung |
Country Status (4)
Country | Link |
---|---|
US (1) | US20190151888A1 (de) |
EP (1) | EP3414358A1 (de) |
DE (1) | DE102016204447A1 (de) |
WO (1) | WO2017157833A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112018007648T5 (de) * | 2018-05-22 | 2021-03-18 | Cummins Inc. | Plasma-elektrolytisch polierte dieselmotorkomponenten |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013019108B3 (de) * | 2013-11-14 | 2015-01-22 | Daimler Ag | Bereitstellung einer korrosionsgeschützten Kraftfahrzeug-Abgasanlagenkomponente |
-
2016
- 2016-03-17 DE DE102016204447.8A patent/DE102016204447A1/de not_active Withdrawn
-
2017
- 2017-03-13 WO PCT/EP2017/055801 patent/WO2017157833A1/de active Application Filing
- 2017-03-13 EP EP17712046.6A patent/EP3414358A1/de not_active Withdrawn
- 2017-03-13 US US16/085,198 patent/US20190151888A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20190151888A1 (en) | 2019-05-23 |
DE102016204447A1 (de) | 2017-09-21 |
WO2017157833A1 (de) | 2017-09-21 |
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