WO1998011270A1 - Verfahren und vorrichtung zum innenbeschichten metallischer bauteile - Google Patents
Verfahren und vorrichtung zum innenbeschichten metallischer bauteile Download PDFInfo
- Publication number
- WO1998011270A1 WO1998011270A1 PCT/EP1997/004968 EP9704968W WO9811270A1 WO 1998011270 A1 WO1998011270 A1 WO 1998011270A1 EP 9704968 W EP9704968 W EP 9704968W WO 9811270 A1 WO9811270 A1 WO 9811270A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coating
- cavity
- component
- cathode
- reaction chamber
- Prior art date
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
- 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
- C23C16/04—Coating on selected surface areas, e.g. using masks
- C23C16/045—Coating cavities or hollow spaces, e.g. interior of tubes; Infiltration of porous 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/04—Coating on selected surface areas, e.g. using masks
- C23C14/046—Coating cavities or hollow spaces, e.g. interior of tubes; Infiltration of porous substrates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/34—Gas-filled discharge tubes operating with cathodic sputtering
Definitions
- the invention relates to a method for the internal coating of metallic components - with a wear-resistant layer - by a deposition process for the coating material from the vapor phase or by sputtering.
- the invention also relates to a device for internal coating.
- Such deposition processes have long been known per se as (physical vapor deposit) PVD processes or (chemical vapor deposit) CVD processes. They are mainly used for the flat application of thin layers based on nitride, oxide or carbide. It is also possible to use this method to deposit metals and / or metal alloys or their compounds.
- WO 89/03 930 describes a method in which a heat insulation layer of small thickness is introduced into a combustion chamber of an engine.
- the coating of the treads - to improve the running properties - is not dealt with in this document.
- a thermal barrier coating made of metal oxides is introduced into a combustion chamber, which can also be used for the tread.
- Thermal spraying processes can be used for internal coating, but these problems arise with regard to the layer thickness, the possible coating material, the tightness of the layer, its surface roughness or the like. pose.
- an inner coating method for cavities, inner surfaces of bushes or larger bores and in particular for cylinder recesses in engine blocks is to be created.
- the inventor has set itself the goal of developing a suitable device or system, which should preferably be suitable for automation.
- the process conditions required for the coating process in the cavity (s) of the component having the surface to be coated are produced by changing the air composition and / or the air pressure, for example generating a gas atmosphere or — preferably — a vacuum.
- the component can be fixed in a vacuum system in a coating system, for example before the coating process, and then subjected to the coating.
- the cavity of the component is sealed before the coating process by closure elements applied to the component and its interior is vented; the cavity itself becomes a vacuum chamber.
- At least one rod cathode is lowered into the cylinder recess in a cylinder surface and the coating process is carried out at a vacuum of approximately 10 " " mbar and a substrate temperature of ⁇ 400 ° C. - preferably ⁇ 250 ° C - performed.
- a vacuum of approximately 10 " " mbar
- a substrate temperature of ⁇ 400 ° C. - preferably ⁇ 250 ° C - performed.
- several layers should possibly also be built up on the surface, for example a TiAl layer with a hard material layer.
- a total layer thickness between 0.1 ⁇ m and 30 ⁇ m, in particular 0.5 ⁇ m to 20 ⁇ m, and a roughness (R R ; R L ; R Z ) of the coating between 0.1 ⁇ m and 10 ⁇ m have proven advantageous, in particular 0.3 ⁇ m and 6 ⁇ m - - proven.
- the initial roughness before coating should be influenced by the coating process by less than 10%.
- a device for internally coating metallic components by means of a deposition process for the coating material from the vapor phase - which should be particularly suitable for carrying out the method discussed above - with a reaction chamber for the deposition process in the form of a vacuum chamber or a plurality of vacuum chamber parts which can be assembled and with at least one cathode (28) which can be moved relative to the component (10, 40).
- the component containing the cavity is intended to be fixed in the vacuum chamber and the cathode is to be movable relative to the cavity and to be inserted therein. It is preferred to form the vacuum chamber of the component itself by means of closure elements tightly attached to it and to arrange the cathode movably in it.
- closure elements sealing the cavity should be designed as closure plates which are placed with sealing surfaces on mating surfaces of the component and with the latter delimit the cavity in an airtight manner.
- the cavity can have any shape, but a polygonal or circular cross section - defining a central axis - is preferred, in particular the cylindrical cavity mentioned.
- the cathode is then arranged to be movable in the longitudinal axis of the cavity.
- the method is preferably used for cylinder liner surfaces in an engine block made of an aluminum alloy, in the cylinder recesses of which a wear-resistant layer is applied without the surface quality previously produced by honing being lost - reworking is no longer necessary.
- sealing surfaces required between the hollow component and the closure plates can be part of an elastic sealing element, in particular made of rubber or a rubber compound, or else of a - temperature-resistant - plastic material.
- sealing surfaces in the form of polished metallic surfaces are also within the scope of the invention.
- the closure elements are placed on the reaction chamber parts from the start of the process by means of a pressure device and the latter are thereby sealed.
- the pressure can be done mechanically or by means of pneumatic or hydraulic pressure devices.
- the above-discussed problems of the inner coating ' can be solved by a deposition from the vapor phase and the inner layers are applied with a good quality.
- FIG. 3 shows a sketch of a coating system, the coating chamber of which is formed from the engine block itself and two closure plates;
- Fig. 6 a schematic overview of several components
- Fig. 7 part of the system in plan view.
- a cylinder recess 12 can be seen in FIG. 1, whose tread 14 is to be coated from the vapor phase.
- the interior 16 of the engine block 10 is closed at both ends by closure plates 18 which, in the closed position, have corresponding counter surfaces 20 a of the engine block 10 with sealing surfaces 20.
- the closure plate 18 of FIG. 1 is equipped with a central connection 22 for a vacuum pump (not shown for reasons of clarity) and with an inlet connection 24 for reaction gas.
- FIG. 3 illustrates an engine block 10 prepared for coating those treads 14; the interior 16 of the engine block 10, which is closed by the two closure plates 18, 18 a , becomes a vacuum chamber 26 when the vacuum pump / s connected to the connections 22 are actuated; the cylinder recesses 12 are also part of the vacuum system thanks to further connections 22 a .
- a rod cathode 28 hangs in the vacuum chamber 26 in each of the cylinder axes M and is lowered into the respective cylinder recess 12 for the coating process in order to carry out the coating there by means of the (physical vapor deposition) PVD method.
- the same coating process also takes place in the coating system 30 according to FIG. 4; here the engine block 10 is introduced into a vacuum chamber 26 a of the coating system 30. After this insertion, the rod cathodes 28 are lowered into the cylinder recesses 12 to be coated in the engine block 10 defined by means of clamping devices 32 and their running surfaces 14 are also coated using the PVD method.
- a cylinder liner 40 is coated in another internal coating system 30 a according to FIG. 5.
- the interior 42 of the sleeve 40 is taken as the coating chamber; the latter are also a lower closure plate 18 with vacuum connection 22 and gas inlet 24 and an upper closure plate 18 a assigned.
- a rod cathode 28 axially hangs from the latter into the interior 42.
- the cylinder liner 40 delivered via a transfer arm 44 is brought into the coating position, and the closure plates 18 and 18 a are automatically closed via pressing heads 46 and 46 a of a robot device.
- the coating process can now be carried out.
- FIG. 6 schematically shows a system 50 for the continuous internal coating of engine blocks 10 with two tracks S X , S 2 each containing a conveyor belt 52.
- step A the track S x is not equipped; in track S 2 , the closure plate 18 and the counterplate 18 a designed as a recipient cover - with the vacuum connection 22 and the rod cathode 28 - are placed at a distance from one another; they take the engine block 10 between them in step B of the track S x .
- step C the closure plate 18 is moved into the interior 16 of the engine block 10 as recipient bottom and in step D the recipient lid 18 a is put on - the coating process is initiated.
- step E the free track S 2 is equipped with a raw engine block 10, while in track S-. the procedure is ongoing.
- step F the recipient parts 18 , 18 a are detached from the coated engine block 10 b and brought to a new engine block 10 in track S 2 .
- Fig. 7 offers a top view of a coated engine block 10 b in track S x and a raw engine block 10 in track S 2 ; the rearrangement of these engine blocks 10, 10b can take place in a plurality of parallel tracks.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Analytical Chemistry (AREA)
- Physical Vapour Deposition (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97944871A EP0946779A1 (de) | 1996-09-13 | 1997-09-11 | Verfahren und vorrichtung zum innenbeschichten metallischer bauteile |
MXPA99002496A MXPA99002496A (es) | 1996-09-13 | 1997-09-11 | Procedimiento y aparato para revestir la cara interna de componentes de construccion de metal. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19637271 | 1996-09-13 | ||
DE19637271.2 | 1996-09-13 | ||
DE19652633A DE19652633A1 (de) | 1996-09-13 | 1996-12-18 | Verfahren und Vorrichtung zum Innenbeschichten metallischer Bauteile |
DE19652633.7 | 1996-12-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998011270A1 true WO1998011270A1 (de) | 1998-03-19 |
Family
ID=26029329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1997/004968 WO1998011270A1 (de) | 1996-09-13 | 1997-09-11 | Verfahren und vorrichtung zum innenbeschichten metallischer bauteile |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0946779A1 (de) |
MX (1) | MXPA99002496A (de) |
WO (1) | WO1998011270A1 (de) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3560248A (en) * | 1966-10-31 | 1971-02-02 | Doran W Padgett | Method for controlled deposition of elements on structures of complex shapes |
US4354456A (en) * | 1981-03-24 | 1982-10-19 | Raychem Corporation | Apparatus for use in making a selectively vapor deposition coated tubular article |
FR2546023A1 (fr) * | 1983-05-10 | 1984-11-16 | Balzers Hochvakuum | Dispositif et procede pour traiter la paroi interieure d'un tube au moyen d'un effluve electrique |
JPS6113064A (ja) * | 1984-06-28 | 1986-01-21 | Teikoku Piston Ring Co Ltd | 内燃機関用ピストンリング |
JPS6179774A (ja) * | 1984-09-28 | 1986-04-23 | Mitsubishi Heavy Ind Ltd | 容器内面のコ−テイング方法 |
EP0204356A2 (de) * | 1985-05-04 | 1986-12-10 | Philips Patentverwaltung GmbH | Verfahren zur glimmentladungsaktivierten reaktiven Abscheidung von elektrisch leitendem Material aus einer Gasphase |
JPS62167882A (ja) * | 1986-01-20 | 1987-07-24 | Nippon Kokan Kk <Nkk> | 移動電極式コ−テイング方法 |
US4859489A (en) * | 1988-07-18 | 1989-08-22 | Vapor Technologies Inc. | Method of coating a metal gas-pressure bottle or tank |
JPH05148618A (ja) * | 1991-11-25 | 1993-06-15 | Nissin Electric Co Ltd | 掘削工具 |
US5301211A (en) * | 1992-08-03 | 1994-04-05 | Combustion Engineering, Inc. | Fuel assembly sputtering process |
-
1997
- 1997-09-11 WO PCT/EP1997/004968 patent/WO1998011270A1/de not_active Application Discontinuation
- 1997-09-11 MX MXPA99002496A patent/MXPA99002496A/es unknown
- 1997-09-11 EP EP97944871A patent/EP0946779A1/de not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3560248A (en) * | 1966-10-31 | 1971-02-02 | Doran W Padgett | Method for controlled deposition of elements on structures of complex shapes |
US4354456A (en) * | 1981-03-24 | 1982-10-19 | Raychem Corporation | Apparatus for use in making a selectively vapor deposition coated tubular article |
FR2546023A1 (fr) * | 1983-05-10 | 1984-11-16 | Balzers Hochvakuum | Dispositif et procede pour traiter la paroi interieure d'un tube au moyen d'un effluve electrique |
JPS6113064A (ja) * | 1984-06-28 | 1986-01-21 | Teikoku Piston Ring Co Ltd | 内燃機関用ピストンリング |
JPS6179774A (ja) * | 1984-09-28 | 1986-04-23 | Mitsubishi Heavy Ind Ltd | 容器内面のコ−テイング方法 |
EP0204356A2 (de) * | 1985-05-04 | 1986-12-10 | Philips Patentverwaltung GmbH | Verfahren zur glimmentladungsaktivierten reaktiven Abscheidung von elektrisch leitendem Material aus einer Gasphase |
JPS62167882A (ja) * | 1986-01-20 | 1987-07-24 | Nippon Kokan Kk <Nkk> | 移動電極式コ−テイング方法 |
US4859489A (en) * | 1988-07-18 | 1989-08-22 | Vapor Technologies Inc. | Method of coating a metal gas-pressure bottle or tank |
JPH05148618A (ja) * | 1991-11-25 | 1993-06-15 | Nissin Electric Co Ltd | 掘削工具 |
US5301211A (en) * | 1992-08-03 | 1994-04-05 | Combustion Engineering, Inc. | Fuel assembly sputtering process |
Non-Patent Citations (5)
Title |
---|
"SPUTTERING PROCESSCOATS INSIDE OF TUBE", MACHINE DESIGN, vol. 64, no. 8, 23 April 1992 (1992-04-23), pages 40, XP000285027 * |
DATABASE WPI Section Ch Week 8609, Derwent World Patents Index; Class M13, AN 86-059937, XP002052262 * |
PATENT ABSTRACTS OF JAPAN vol. 010, no. 252 (C - 369) 29 August 1986 (1986-08-29) * |
PATENT ABSTRACTS OF JAPAN vol. 012, no. 011 (C - 468) 13 January 1988 (1988-01-13) * |
PATENT ABSTRACTS OF JAPAN vol. 017, no. 540 (C - 1115) 29 September 1993 (1993-09-29) * |
Also Published As
Publication number | Publication date |
---|---|
MXPA99002496A (es) | 2003-07-21 |
EP0946779A1 (de) | 1999-10-06 |
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