EP1141438B1 - Dispositif auxiliaire pour application thermique d'un revetement sur des surfaces d'un espace interne - Google Patents

Dispositif auxiliaire pour application thermique d'un revetement sur des surfaces d'un espace interne Download PDF

Info

Publication number
EP1141438B1
EP1141438B1 EP99958156A EP99958156A EP1141438B1 EP 1141438 B1 EP1141438 B1 EP 1141438B1 EP 99958156 A EP99958156 A EP 99958156A EP 99958156 A EP99958156 A EP 99958156A EP 1141438 B1 EP1141438 B1 EP 1141438B1
Authority
EP
European Patent Office
Prior art keywords
auxiliary device
cylinder
crankcase
openings
coating
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.)
Expired - Lifetime
Application number
EP99958156A
Other languages
German (de)
English (en)
Other versions
EP1141438A1 (fr
Inventor
Udo Schlegel
Reinhard Vogelsang
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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
Priority claimed from DE19910665A external-priority patent/DE19910665A1/de
Application filed by Volkswagen AG filed Critical Volkswagen AG
Publication of EP1141438A1 publication Critical patent/EP1141438A1/fr
Application granted granted Critical
Publication of EP1141438B1 publication Critical patent/EP1141438B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/14—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying for coating elongate material
    • C23C4/16—Wires; Tubes

Definitions

  • the invention relates to an auxiliary device for the thermal coating of surfaces an interior, in particular of cylinder surfaces of a Cylinder crankcase, with the mentioned in the preamble of claim 1 Features.
  • a thermal coating a Surface finish to achieve.
  • a thermal coating For example, a plasma coating, a coating material, in particular a metal, supplied in a powder or rod form a flame, melted in this and deposited on the surface to be coated.
  • a coating material in particular a metal
  • supplied in a powder or rod form a flame, melted in this and deposited on the surface to be coated.
  • Coatings with different properties, in particular with desired Sliding properties, hardness properties, layer thicknesses or the like can be achieved.
  • thermal coating for example on cylinder surfaces of cylinder crankcases of internal combustion engines.
  • Another application is, for example, the coating of connecting rods to achieve a bearing layer.
  • interiors such as cylinder surfaces of a cylinder crankcase
  • a defined and reproducible processing is necessary because the thermal coating significantly affects the running properties of pistons in the cylinder crankcases or waves in the connecting rod.
  • the invention has for its object to provide an auxiliary device of the generic type, by means of a simple way a safe thermal coating of interior surfaces is possible. According to the invention this object is achieved by an auxiliary device with the features mentioned in claim 1.
  • the auxiliary device is designed as a cover template, which can be arranged between the cylinder crankcase and the at least one pretreatment tool or the at least one coating tool, and which has at least one passage opening through which the pretreatment or coating of the interior surfaces, is advantageously achieved that all further surfaces of the cylinder crankcase are protected against impairment by the material-removing or material-applying processes.
  • the Through openings of the cover template are slightly larger than dimensioned the openings of the interiors to be treated.
  • the Through openings of the cover template circumferentially around the openings leave free, which is preferably between 0.5 and 5 mm, in particular 2 to 3 mm.
  • the Cover template has a layer structure, wherein at least one of the layers forms a wear layer, while the other layers holding and Apply fixing functions for the cover template.
  • the wearing part the is preferably arranged non-positively between two holding parts, which has the Openings of the interiors to be treated associated through holes.
  • the Cover template at least partially also a material-removing process (Sandblasting) exposed, so that by simply replacing the wearing part the Dimensional accuracy of the through holes of the mask are met can.
  • the Through openings of the mask of inserted in a body Wear sleeves are formed. This is advantageously achieved, in particular during Application of coatings with relatively low hardness that not the entire Cover template or the entire wear piece from a relative quality material must exist, but only in the Through holes of the cover template used wear sleeve.
  • On Inner diameter of the wear sleeve is adapted so that this slightly larger than the opening of the interior to be coated. This will be the already mentioned edge coating ensured.
  • the Wear part has a smaller number of through holes, than that with the Cover template to be covered cylinder crankcase to be coated interiors has. This ensures that, in particular at relatively close to each other arranged interior spaces (cylinder bores) successively processing the Cylinder bores can be made and adjacent cylinder bores through the Cover template are covered.
  • the one have a multiple of 2 corresponding number of cylinder bores -
  • four-cylinder, six-cylinder, eight-cylinder engines - can Cover templates preferably be designed so that every second cylinder bore covered or for the pretreatment or Coating tools are accessible.
  • the cover template can be exchanged or turned, so that subsequently the remaining cylinder bores can be treated.
  • process freedom is not sufficient to pretreat adjacent cylinder bores simultaneously or to coat. Because they are not treated Cylinder bores are covered, these can by a treatment, For example, sandblasting or thermal coating of the adjacent Cylinder bore not be affected.
  • the Cover template Auxiliary device for influencing a gas atmosphere during the associated with thermal coating is very advantageous as a holding element for the additional devices for influencing the Gas atmosphere can be used, so that these additional facilities in close proximity can be arranged to the treated interior spaces.
  • the mask is very advantageous as a holding element for the additional devices for influencing the Gas atmosphere can be used, so that these additional facilities in close proximity can be arranged to the treated interior spaces.
  • the application or removal of the Cover template simultaneously with the addition or removal of the Additional facilities for influencing the gas atmosphere together feasible are.
  • FIG. 1 schematically shows a processing station 10 for thermal coating cylinder liners of cylinder crankcases 12. This is only partial each a cylinder crankcase 12 indicated, this also only indicated cylinder bores 14, here four, has.
  • the processing station 10 are the, the cylinder bores 14 delimiting walls, so the Cylinder surfaces, coated.
  • the coating takes place by means of a Plasma coating technology. In the context of the present description is on the actual process of plasma coating not discussed in more detail, since this is known.
  • the cylinder crankcase 12 are by means of a transport path 16, for example a roller conveyor or the like, moved by the processing station 10.
  • the Processing station 10 comprises processing sections 18, 20, 22, 24, 26, 28, 30, 32, 34 and 36. Below, we will briefly discuss the individual processing sections become.
  • the processing section 18 comprises a feed station, in which the Cylinder crankcase 12 of the processing station 10 are passed.
  • the Cylinder crankcase 12 are already not closer to here manufactured and with all necessary functional elements, such as Cylinder bores, coolant channels, P motherboardbohritch or the like, finished machined.
  • the processing section 20 comprises a washing or cleaning station, within which the cylinder crankcases are washed completely chip-free and oil-free. Furthermore, a drying and an absolute degreasing of the cylinder surfaces to be coated takes place.
  • the absence of chips and oil is achieved, for example, by an injection flood washing, with critical areas, such as undercuts, holes, cavities or the like, being cleaned by targeted injection of a washing liquor with high pressure.
  • the degreasing is carried out for example by superheated steam, which is passed for example by appropriately trained lances on the cylinder surfaces of the cylinder crankcase 12.
  • the superheated steam has, for example, a temperature of 130 ° C to 160 ° C and is introduced at a pressure of about 150 to 180 mbar.
  • the subsequent drying of the cylinder crankcase 12 is preferably carried out under vacuum, for example at a negative pressure of 80 to 120 mbar.
  • a so-called stenciling of the cylinder crankcase 12 takes place.
  • the previously cleaned and dried cylinder crankcase 12 are provided with a cover template 38.
  • the cover template 38 has here indicated openings 40.
  • the openings 40 are aligned with the cylinder bores 14, so that when applying the cover template 38, the cylinder bores 14 remain accessible through the openings 40 from above.
  • the cover template 38 is formed so that all other areas of the cylinder crankcase 12 are covered by this. This concerns in particular coolant channels, fitting holes or the like.
  • the cover template 38 can hereby be placed on the cylinder crankcase 12 manually or by a corresponding gripper or the like.
  • the cover template 38 has an exact flat bottom, which rests on the already plan ground or milled cylinder head surface of the cylinder crankcase 12.
  • these fixation pins may comprise, for example, the fitting holes that are present anyway in the cylinder crankcase 12, for example for the later fastening of a cylinder head.
  • the cover template 38 is made of a material which is resistant to the subsequent processing. This has in particular a sufficiently high strength against a sandblasting attack and against a plasma treatment and the like.
  • the cover template 38 is in this case only by its own weight on the cylinder crankcase 12.
  • Sandblasting of the cylinder bores 14 takes place in the processing section 24. This sandblasting takes place in order to achieve a roughness of the cylinder running surfaces, so that the plasma coating taking place in the processing section 32 obtains the necessary adhesive tensile strength.
  • at least one jet lance optionally two or more jet lances, are introduced into the cylinder bores 14 at the same time or successively. In this case, the lances engage through the openings 40 of the cover template 38.
  • the sand blasting is carried out, for example, with aluminum oxide Al 2 O 3 with a particle size of 0.18 to 1.18 mm depending on the required surface roughness, based on the substrate alloy of the cylinder crankcase or adhesive tensile strength of the subsequent plasma coating.
  • sandblasting is preferably done with a dual sandblasting unit having two sandblasting lances.
  • the simultaneous sandblasting of the cylinder bores 1 and 3, that is, not directly adjacent cylinder bores 14. This is better handling in a relatively cramped available space conditions, which are based on the gauge of the cylinder bores 14, possible.
  • this halves the machining of a complete cylinder crankcase, since two cylinder bores are machined simultaneously.
  • either the cylinder crankcase 12 or the sandblasting unit is moved by the pitch of the cylinder bore 14, so that then the cylinder bores 2 and 4 can be sandblasted.
  • the sandblasting takes place here through the openings 40 of the cover templates 38, that is, the beam lances are inserted through the cover template 38 into the cylinder bores 14.
  • mask 38 By covering mask 38 all other areas of the cylinder crankcase 12 are protected so that they do not come into contact with the introduced under pressure sandblasting, so that their surfaces experience no impairment.
  • the action of sandblasting takes place exclusively on the cylinder running surfaces of the cylinder bores 14.
  • the sandblasted cylinder crankcase 12 in the Machining section 26 cleaned by settling by the sandblasting Dust, especially fine dust, is removed from the cylinder bores 14.
  • This For example, by purified, de-oiled and water-free compressed air, for example with a pressure of approximately 5 to 6 bar, with simultaneous suction of the dusts. This is a simultaneous cleaning, ie blowing and suction, all Cylinder bores 14.
  • a measurement of the cylinder crankcase 12 takes place, in particular a roughness measurement of the cylinder treads.
  • the measurement can by means of suitable facilities, such as photogrammetry, fully automatic respectively.
  • a measurement of all cylinder bores 14 or random samples only one of the cylinder bore 14 or a cylinder bore 14 every nth Cylinder crankcase 12 done. After measurement of the cylinder crankcase 12th these are transferred to the processing section 30, within which a mark the cylinder crankcase 12 takes place. If the measurement shows that the roughness is outside the predetermined tolerances, the corresponding cylinder crankcase 12 may sorted out and, if necessary, fed again to the sandblasting station. However, the number of maximum possible blasting operations is limited. Becomes a faulty crankcase determines the frequency of the Roughness measurement can be increased.
  • the cylinder crankcases are in the processing section 32nd in which the actual thermal coating of the cylinder surfaces he follows.
  • the plasma coating is carried out in a conventional manner by a Coating material, in particular a metal, a flame is supplied in this melted out and precipitated on the cylinder surfaces.
  • a coating atmosphere for example Oxygen and / or nitrogen or another process gas to stabilize the Flame and / or supplied to control the oxide content in the plasma layer.
  • the Plasma coating of the cylinder surfaces can here for each of Cylinder bores 14 are made individually or, similar to the sandblasting, by a Double plasma unit, by means of the first cylinder bores 1 and 3 and then the cylinder bores 2 and 4 are coated.
  • cover template 38 is a Impairment, especially contamination, of areas not to be coated the cylinder crankcase 12 safely avoided.
  • the Cylinder crankcase transferred to the processing section 34. This one can optionally be part of a cooling zone. After another Embodiment is between the plasma coating in the processing section 32 and the processing section 34 is provided a separate cooling zone.
  • the processing section 34 takes a removal of the cover template 38. This is either manually or by auxiliaries of the cylinder crankcase 12th taken. Since the cover template 38 only by its own weight on the Cylinder crankcase 12 rests, additional measures to remove the Cover template 38 not necessary. Finally, the cylinder crankcase 12 is in taken from a processing section 36 of the processing station 10 and a further processing, such as honing the plasma-coated Cylinder bores 14, attaching an inlet chamfer to the cylinder bores fourteenth fed.
  • a marking of the cylinder crankcase 12 takes place for example by a serial number or the like.
  • the openings 40 of the cover template 38 are slightly larger than the cylinder bores 14, so that a corresponding edge coating of the cylinder bores 14 surrounding edge regions of the cylinder crankcase 12 takes place.
  • the later chamfer area has a correspondingly high adhesive tensile strength against cutting forces of the chamfering tool and that the plasma coating during chamfering is not damaged.
  • the stenciling of the cylinder crankcase 12 is maintained during the entire passage through the processing sections 24, 26, 28, 30 and 32.
  • the cover templates are applied in the processing section 22 and removed in the processing section 34.
  • the masking sheets 38 used in this embodiment must be suitable for both sandblasting in the machining section 24 and plasma coating in the machining section 32. Since it is on the one hand to a material-removing and on the other hand to a material-applying process, the mask 38 must be fair to both conflicting procedures.
  • the Stenciling the cylinder crankcase 12 illustrates.
  • the basic structure within the processing sections 24 and 32 is the same. Different are only once the sandblasting facilities as tools and on the other hand, the plasma coating equipment as tools. As part of the However, this description will not be discussed further here.
  • Decisive is the stenciling of the cylinder crankcase 12 both during Sand blasting in the processing section 24 as well as the plasma coating in Processing section 32.
  • a cylinder crankcase 12 is on a lifting table 42 is arranged.
  • the lifting table 42 is integrated into the transport path 16. This is done in such a way that the cylinder crankcase 12 by means of the transport path 16 in the respective processing sections 24 and 32 are transported and There by means of the lifting tables 42 can be converted into their respective processing position.
  • a machining tool 44 each one a lance or after The already explained embodiments, two or more lances 46 has. The lances 46 are either for sand blasting at the processing section 24 or formed for plasma coating in the processing section 32 accordingly.
  • the processing stations 24 and 32 also include one here in total designated 50 means for stenciling the cylinder crankcase 12.
  • stenciling takes place here processing related on the one hand in the processing station 24 and on the other hand in the Processing station 32.
  • the device 50 comprises a turntable 52, which by means of a Drive 54 is rotatable about its axis of rotation 56 in defined steps.
  • the Turntable 52 has, as the schematic plan view in Figure 3 better illustrates, Receivers 58 for each cover template.
  • the cover templates 38 have only the openings 40, each of which Cylinder bores 14 are assigned.
  • the turntable 52nd defines gradually rotatable.
  • the device 50 is an indicated cleaning device 62, the for example, may have a cutter 64 assigned.
  • Cleaning device may also be a device for replacement of Wear sleeves, which are arranged in the template 38 may be provided. Further are still indicated here suction 66 and 68, respectively.
  • the device 50 shown in FIGS. 2 and 3 has the following function:
  • FIG. 3 illustrates, are in the moment where a cover template 38 in its processing position is - next to clockwise - a next one Cover template 38 in a transition position and a cover template 38 in one the cleaning device 62 (sleeve exchange device) associated position.
  • a Another cover template 38 is located between the cleaning position and the Processing position. This ensures that at the same time, if a Cover template 38 assumes its covering function, a second, namely this exactly arranged offset by 180 ° cover template 38, cleaned by means of the device 62 becomes.
  • the milling device 64 for example, a dimensional accuracy of the openings 40 of the cover templates 38 are restored. This can For example, affected by deposits during the plasma coating his. The dimensional accuracy of the openings can also by replacing appropriate Wear sleeves in the cover templates can be achieved.
  • the arrangement of the cleaning device 62 be omitted, since here no additional material order, the dimensional accuracy of the Can affect openings 40 occurs. Only by the material removal not more dimensionally stable masking 38 or wear sleeves can be replaced.
  • the Cover template 38 consists of a first frame 100 and a second Frame 102. Between the frames 100 and 102 a centerpiece 104 is arranged, the following also as a wear piece or wear layer 104th referred to as.
  • the frames 100 and 102 and the center piece 104 are sandwiched arranged in a layer structure and by means of connecting elements 106, For example, screws, non-positively connected.
  • the frames 100 and 102 have a recess 108, within which substantially the center piece 104th is arranged.
  • the center piece 104 is viewed in cross-section - as Figure 6 clarified - designed so that in the areas where overlap with the Frame 100 and 102 is provided, notches 110 are provided.
  • the cover template 38 a perfect planar bottom 112 and a flat top 114 has.
  • the middle piece 104 has two through holes 40 whose spacing is twice the gauge of the Cylinder bores 14 of the cylinder crankcase 12 corresponds.
  • Figure 4 is the Each measure entered with s and in Figure 5, the distance between the two Through holes 40 with 2s illustrates.
  • Figure 4 shows a plan view of the Cover template 38, while Figure 5 is a bottom view or a mirror image constructed cover template 38 and Figure 6 is a sectional view of Cover template 38 shows.
  • wear sleeves 116 are used in the through holes 40 wear sleeves 116.
  • a diameter d1 of the wear sleeves 116 is chosen so that it is larger than a diameter the cylinder bores 14.
  • the diameter d1 is between 1 and 10 mm, in particular between 4 and 6 mm, larger than the diameter of the cylinder bores 14.
  • the edge 118 is therefore between 0.5 and 5 mm, in particular between 2 and 3 mm. Otherwise lies the cover template 38 with its bottom 112 plan on the Cylinder head surface of the cylinder crankcase 12 on.
  • a position fixation is carried out by Indicated here index pins 120, which provided in the cylinder crankcase 12 Engage passport holes.
  • the cover template 38th has two through holes 40, while the cylinder crankcase 12 to four having coated cylinder bores 14.
  • double tool units for sandblasting or for plasma coating two each Cylinder bores are pretreated or coated simultaneously.
  • the first Cylinder bore 1 and the cylinder bore 3 treated.
  • the cylinder bores 2 and 4 are covered by the center piece 14 and thus against the influence of the Treatment, that is sandblasting or plasma coating, adjacent cylinder bores 14 protected.
  • either the cover template 38 can be rotated, so that the arrangement of the through holes 40 as shown in FIG FIG. 5 shows.
  • the wear sleeves 116 themselves consist for example of an extruded Aluminum / steel tube, which by a press fit into the through holes 40th are used.
  • the material of the wear sleeves 16 is, in particular for the Plasma coating in the processing section 32, chosen so that this is coated with. This is necessary since the beginning of the coating Cylinder bores 14, that is, the beginning of a supply of a Coating material for plasma flame, during the lowering of the Tool 46 begins above or inside the cover template 38. hereby In particular, it shall be ensured that, in accordance with the design of margin 118 a proper edge coating of the cylinder bores 14 takes place.
  • the layer structure of the Cover template 38 from the frame 100, 102 and the middle 104 omitted be, that is, the cover template 38 is made of a molded part, which is the Through openings 40 with the wear sleeves 116 has.
  • different cover templates 38 are used, For example, only when sandblasting the sandwich cover template 38th be used, since here a relatively high wear by the material-removing Procedure is done. In plasma coating, however, can by the already explained Replacing the wear sleeves 116 a relatively long service life of Cover templates 38 can be achieved.
  • FIG. 7 shows a further embodiment variant of a cover template 38.
  • Identical parts As in the preceding figures are provided with the same reference numerals and not explained again.
  • this is between frames 100 or 102 clamped center piece 104 with a total of four Through openings 40 provided.
  • the diameter d1 of the through holes 40 is again chosen larger than the diameter of the cylinder bores 14 to the already explained edging or coating the Cylinder bores 14 to achieve. For cleaning or replacement purposes is only to replace the entire centerpiece 104.
  • FIG. 8 shows a further embodiment variant of a cover template 38, wherein the cover template 38 shown in FIG. 8 can have both the construction shown in FIG. 7 and that shown in FIG.
  • the cover template 38 may be provided with an auxiliary device 70, which provides in the processing section 32 for providing an additional gas flow during the plasma treatment.
  • a line system 72 is provided, which has annular sections 76 extending around the passage openings 40.
  • nozzle openings are arranged so that when a port 74 with a gas, in particular nitrogen N 2 , via the line sections 76, a corresponding influence on an atmosphere during the plasma coating can take place.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Coating By Spraying Or Casting (AREA)

Claims (42)

  1. Dispositif auxiliaire pour l'application thermique d'un revêtement sur des surfaces d'un espace interne, notamment des surfaces de glissement de cylindres dans un carter-moteur d'un moteur à combustion interne, l'espace interne (alésage de cylindre) étant accessible par l'intermédiaire d'au moins une ouverture pour au moins un outil de prétraitement et au moins un outil de revêtement, et un gabarit de masquage doté d'une ouverture débouchante pour l'alésage de cylindre étant disposé sur la surface supérieure du carter-moteur, caractérisé en ce que les ouvertures débouchantes (40) du gabarit de masquage (38) sont dimensionnées plus grandes que les ouvertures des espaces internes (14) à traiter.
  2. Dispositif auxiliaire selon la revendication 1, caractérisé en ce que le gabarit de masquage (38) laisse dégagé un bord entourant (118) autour des espaces internes (14).
  3. Dispositif auxiliaire selon la revendication 2, caractérisé en ce que le bord (118) est compris entre 0,5 et 5 mm, notamment entre 2 et 3 mm.
  4. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que des douilles d'usure (116) sont disposées dans les ouvertures débouchantes (40).
  5. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que la douille d'usure (116) est constituée d'un matériau qui peut être conjointement revêtu lors de l'application thermique du revêtement.
  6. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que les douilles d'usure (116) sont constituées d'un tube en aluminium/acier fabriqué par extrusion.
  7. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que les douilles d'usure (116) sont insérées en ajustement serré dans le gabarit de masquage (38).
  8. Dispositif auxiliaire pour l'application thermique d'un revêtement sur des surfaces d'un espace interne, notamment des surfaces de glissement de cylindres dans un carter-moteur d'un moteur à combustion interne, l'espace interne (alésage de cylindre) étant accessible par l'intermédiaire d'au moins une ouverture pour au moins un outil de prétraitement et au moins un outil de revêtement, et un gabarit de masquage doté d'une ouverture débouchante pour l'alésage de cylindre étant disposé sur la surface supérieure du carter-moteur, caractérisé en ce que le gabarit de masquage (38) possède une structure stratifiée, au moins une des couches (100, 102, 104) formant une couche d'usure (104).
  9. Dispositif auxiliaire selon la revendication 8, caractérisé en ce que la couche d'usure (104) est disposée entre des cadres (100, 102) et est assemblée à force avec ceux-ci.
  10. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce qu'on utilise des gabarits de masquage (38) différents pour le prétraitement de l'espace interne (14) et pour le revêtement de l'espace interne (14), notamment des couches d'usure (104) différentes.
  11. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que les couches d'usure sont formées par des douilles d'usure (116) insérées dans le gabarit de masquage (38), qui forment les ouvertures débouchantes (40).
  12. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que la douille d'usure (116) est constituée d'un matériau qui peut être conjointement revêtu lors de l'application thermique du revêtement.
  13. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que les douilles d'usure (116) sont constituées d'un tube en aluminium/acier fabriqué par extrusion.
  14. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que les douilles d'usure (116) sont insérées en ajustement serré dans le gabarit de masquage (38).
  15. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que les ouvertures débouchantes (40) du gabarit de masquage (38) sont dimensionnées plus grandes que les ouvertures des espaces internes (14) à traiter.
  16. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que le gabarit de masquage (38) laisse dégagé un bord entourant (118) autour des espaces internes (14).
  17. Dispositif auxiliaire selon la revendication 16, caractérisé en ce que le bord (118) est compris entre 0,5 et 5 mm, notamment entre 2 et 3 mm.
  18. Dispositif auxiliaire pour l'application thermique d'un revêtement sur des surfaces d'un espace interne, notamment des surfaces de glissement de cylindres dans un carter-moteur d'un moteur à combustion interne, l'espace interne (alésage de cylindre) étant accessible par l'intermédiaire d'au moins une ouverture pour au moins un outil de prétraitement et au moins un outil de revêtement, et un gabarit de masquage doté d'une ouverture débouchante pour l'alésage de cylindre étant disposé sur la surface supérieure du carter-moteur, caractérisé en ce que le gabarit de masquage (38) présente un nombre d'ouvertures débouchantes (40) inférieur au nombre d'espaces internes (14) à revêtir que possède le carter-moteur (12).
  19. Dispositif auxiliaire selon la revendication 18, caractérisé en ce que le gabarit de masquage (38) présente un nombre d'ouvertures débouchantes (40) égal à la moitié du nombre d'espaces internes (14).
  20. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que les ouvertures débouchantes (40) sont associées à un espace interne (14) sur deux.
  21. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que l'écartement des ouvertures débouchantes (40) est égal au double du calibre des espaces internes (14).
  22. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que le gabarit de masquage (38) possède une structure stratifiée, au moins une des couches (100, 102, 104) formant une couche d'usure (104).
  23. Dispositif auxiliaire selon la revendication 22, caractérisé en ce que la couche d'usure (104) est disposée entre des cadres (100, 102) et est assemblée à force avec ceux-ci.
  24. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce qu'on utilise des gabarits de masquage (38) différents pour le prétraitement de l'espace interne (14) et pour le revêtement de l'espace interne (14), notamment des couches d'usure (104) différentes.
  25. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que les couches d'usure sont formées par des douilles d'usure (116) insérées dans le gabarit de masquage (38), qui forment les ouvertures débouchantes (40).
  26. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que la douille d'usure (116) est constituée d'un matériau qui peut être conjointement revêtu lors de l'application thermique du revêtement.
  27. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que les douilles d'usure (116) sont constituées d'un tube en aluminium/acier fabriqué par extrusion.
  28. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que les douilles d'usure (116) sont insérées en ajustement serré dans le gabarit de masquage (38).
  29. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que les ouvertures débouchantes (40) du gabarit de masquage (38) sont dimensionnées plus grandes que les ouvertures des espaces internes (14) à traiter.
  30. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que le gabarit de masquage (38) laisse dégagé un bord entourant (118) autour des espaces internes (14).
  31. Dispositif auxiliaire selon la revendication 30, caractérisé en ce que le bord (118) est compris entre 0,5 et 5 mm, notamment entre 2 et 3 mm.
  32. Dispositif auxiliaire pour l'application thermique d'un revêtement sur des surfaces d'un espace interne, notamment des surfaces de glissement de cylindres dans un carter-moteur d'un moteur à combustion interne, l'espace interne (alésage de cylindre) étant accessible par l'intermédiaire d'au moins une ouverture pour au moins un outil de prétraitement et au moins un outil de revêtement, et un gabarit de masquage doté d'une ouverture débouchante pour l'alésage de cylindre étant disposé sur la surface supérieure du carter-moteur, caractérisé en ce que, pour traiter à l'aide de gabarits le carter-moteur (12), un plateau tournant (52) rotatif par pas définis possède plusieurs logements (58) pour recevoir chacun un gabarit de masquage (38).
  33. Dispositif auxiliaire selon la revendication 32, caractérisé en ce que des butées (60) sont disposées dans les logements (58) pour positionner le gabarit de masquage (38).
  34. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce que le nombre de logements (58) pour les gabarits de masquage (38) correspond au nombre de pas de déplacement du plateau tournant (52).
  35. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un entraínement (54) est associé au plateau tournant (52) pour le déplacement du plateau tournant (52) par pas définis.
  36. Dispositif auxiliaire selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une table élévatrice (42) est disposée en dessous du plateau tournant (52) pour apporter le carter-moteur (12) au poste de traitement respectif.
  37. Dispositif auxiliaire pour l'application thermique d'un revêtement sur des surfaces d'un espace interne, notamment des surfaces de glissement de cylindres dans un carter-moteur d'un moteur à combustion interne, l'espace interne (alésage de cylindre) étant accessible par l'intermédiaire d'au moins une ouverture pour au moins un outil de prétraitement et au moins un outil de revêtement, et un gabarit de masquage doté d'une ouverture débouchante pour l'alésage de cylindre étant disposé sur la surface supérieure du carter-moteur, caractérisé en ce qu'un gaz peut être apporté aux ouvertures débouchantes (40) du gabarit de masquage (38) par l'intermédiaire d'un système de conduites (72) et d'un tronçon de conduite (76) disposé annulairement autour des ouvertures débouchantes (40), des orifices de buses étant disposés dans la région des ouvertures débouchantes (40) dans le tronçon de conduite (76).
  38. Dispositif auxiliaire selon la revendication 37, caractérisé en ce que le gaz apporté au système de conduites (72) par l'intermédiaire d'un branchement (74) est de l'azote (N2).
  39. Procédé pour l'application thermique d'un revêtement sur des surfaces d'au moins deux espaces internes voisins, notamment des surfaces de glissement de cylindres dans un carter-moteur d'un moteur à combustion interne, les espaces internes (alésage de cylindre) étant respectivement accessibles par l'intermédiaire d'au moins une ouverture pour au moins un outil de prétraitement et au moins un outil de revêtement, caractérisé en ce que, pendant le prétraitement et/ou le revêtement d'au moins un des espaces internes (alésage de cylindre), au moins un autre espace interne (alésage de cylindre) est recouvert.
  40. Procédé selon la revendication 39, caractérisé en ce que la moitié des espaces internes (alésage de cylindre) à revêtir est recouverte.
  41. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un espace interne (alésage de cylindre) à revêtir sur deux est recouvert.
  42. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que, pour un carter-moteur doté d'un nombre d'alésages de cylindres divisible par deux, une moitié puis l'autre, en deux étapes de travail successives, des alésages de cylindres sont simultanément prétraités ou revêtus.
EP99958156A 1998-12-18 1999-12-03 Dispositif auxiliaire pour application thermique d'un revetement sur des surfaces d'un espace interne Expired - Lifetime EP1141438B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19860302 1998-12-18
DE19860302 1998-12-18
DE19910665 1999-03-11
DE19910665A DE19910665A1 (de) 1998-12-18 1999-03-11 Hilfsvorrichtung zum thermischen Beschichten von Flächen eines Innenraumes
PCT/EP1999/009437 WO2000037705A1 (fr) 1998-12-18 1999-12-03 Dispositif auxiliaire pour application thermique d'un revetement sur des surfaces d'un espace interne

Publications (2)

Publication Number Publication Date
EP1141438A1 EP1141438A1 (fr) 2001-10-10
EP1141438B1 true EP1141438B1 (fr) 2003-03-26

Family

ID=26051068

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99958156A Expired - Lifetime EP1141438B1 (fr) 1998-12-18 1999-12-03 Dispositif auxiliaire pour application thermique d'un revetement sur des surfaces d'un espace interne

Country Status (3)

Country Link
EP (1) EP1141438B1 (fr)
CN (1) CN1293226C (fr)
WO (1) WO2000037705A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7415958B2 (en) 2004-08-06 2008-08-26 Daimler Ag Process for processing cylinder crankcases having sprayed cylinder barrels
US7584735B2 (en) 2004-08-06 2009-09-08 Daimler Ag Process for the chip-forming machining of thermally sprayed cylinder barrels
DE102010063704A1 (de) 2010-12-21 2012-06-21 Elgan-Diamantwerkzeuge Gmbh & Co. Kg Bearbeitungsverfahren und Bearbeitungswerkzeug zum Bearbeiten einer gekrümmten Werkstückoberfläche
WO2012084612A1 (fr) 2010-12-21 2012-06-28 Elgan-Diamantwerkzeuge Gmbh & Co. Kg Procédé d'usinage et outil d'usinage pour l'usinage de surfaces de pièces courbes, ainsi que pièce
DE102011079757A1 (de) 2011-07-25 2013-01-31 Elgan-Diamantwerkzeuge Gmbh & Co. Kg Bearbeitungsverfahren und Bearbeitungswerkzeug zum Bearbeiten einer gekrümmten Werkstückoberfläche sowie Werkstück
DE102017213359A1 (de) 2017-08-02 2019-02-07 Volkswagen Aktiengesellschaft Beschichtungslanzenkopf, Beschichtungslanze und Maskierungsschild zum thermischen Beschichten, sowie ein entsprechendes Beschichtungssystem und Verfahren
DE102017213360A1 (de) 2017-08-02 2019-02-07 Volkswagen Aktiengesellschaft Prozessbox zum Abschirmen vorbestimmter Oberflächen eines Objekts bei einem thermischen Beschichten und entsprechendes Verfahren
DE102004038173B4 (de) 2004-08-06 2020-01-16 Daimler Ag Verfahren zum thermischen Spritzen von Zylinderlaufflächen bei mehrreihigen Motoren

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010094324A1 (fr) * 2009-02-18 2010-08-26 Alfing Kessler Sondermaschinen Gmbh Procédé et dispositif pour introduire des structures de surfaces, notamment des aspérités de surface, dans la surface de contact d'un élément structurel
DE102013014174A1 (de) 2013-08-26 2015-03-12 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung zum Beschichten von Zylinderwänden
PL3048181T3 (pl) * 2015-01-20 2019-05-31 Sturm Maschinen & Anlagenbau Gmbh Instalacja i sposób metalicznego powlekania przedmiotu obrabianego
FR3040901B1 (fr) * 2015-09-10 2019-05-17 Renault S.A.S Procede et appareil de nettoyage de masques de protection de face superieure de carter cylindres
DE102019113033A1 (de) * 2019-05-17 2019-09-05 Gehring Technologies Gmbh Vorrichtung zur Herstellung von beschichteten Oberflächen, insbesondere von reibungsarmen Zylinderbohrungen für Verbrennungsmotoren
CN113913724B (zh) * 2021-09-23 2023-08-25 河北龙都管道制造有限公司 管道无缝金属防腐内衬的旋转式制备装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5271967A (en) * 1992-08-21 1993-12-21 General Motors Corporation Method and apparatus for application of thermal spray coatings to engine blocks
JPH06235057A (ja) * 1992-12-07 1994-08-23 Ford Motor Co 複合メタライジング線およびその使用方法
JPH07118891A (ja) * 1993-09-02 1995-05-09 Yamaha Motor Co Ltd 表面処理装置
US5466906A (en) * 1994-04-08 1995-11-14 Ford Motor Company Process for coating automotive engine cylinders
JP3502689B2 (ja) * 1995-03-23 2004-03-02 ヤマハ発動機株式会社 メッキシリンダブロック及びそのメッキ方法
US5573814A (en) * 1995-10-30 1996-11-12 Ford Motor Company Masking cylinder bore extremities from internal thermal spraying
US5691004A (en) * 1996-07-11 1997-11-25 Ford Global Technologies, Inc. Method of treating light metal cylinder bore walls to receive thermal sprayed metal coatings

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7415958B2 (en) 2004-08-06 2008-08-26 Daimler Ag Process for processing cylinder crankcases having sprayed cylinder barrels
US7584735B2 (en) 2004-08-06 2009-09-08 Daimler Ag Process for the chip-forming machining of thermally sprayed cylinder barrels
DE102004038173B4 (de) 2004-08-06 2020-01-16 Daimler Ag Verfahren zum thermischen Spritzen von Zylinderlaufflächen bei mehrreihigen Motoren
DE102010063704A1 (de) 2010-12-21 2012-06-21 Elgan-Diamantwerkzeuge Gmbh & Co. Kg Bearbeitungsverfahren und Bearbeitungswerkzeug zum Bearbeiten einer gekrümmten Werkstückoberfläche
WO2012084612A1 (fr) 2010-12-21 2012-06-28 Elgan-Diamantwerkzeuge Gmbh & Co. Kg Procédé d'usinage et outil d'usinage pour l'usinage de surfaces de pièces courbes, ainsi que pièce
DE102011079757A1 (de) 2011-07-25 2013-01-31 Elgan-Diamantwerkzeuge Gmbh & Co. Kg Bearbeitungsverfahren und Bearbeitungswerkzeug zum Bearbeiten einer gekrümmten Werkstückoberfläche sowie Werkstück
DE102017213359A1 (de) 2017-08-02 2019-02-07 Volkswagen Aktiengesellschaft Beschichtungslanzenkopf, Beschichtungslanze und Maskierungsschild zum thermischen Beschichten, sowie ein entsprechendes Beschichtungssystem und Verfahren
DE102017213360A1 (de) 2017-08-02 2019-02-07 Volkswagen Aktiengesellschaft Prozessbox zum Abschirmen vorbestimmter Oberflächen eines Objekts bei einem thermischen Beschichten und entsprechendes Verfahren

Also Published As

Publication number Publication date
WO2000037705A1 (fr) 2000-06-29
CN1293226C (zh) 2007-01-03
CN1330728A (zh) 2002-01-09
EP1141438A1 (fr) 2001-10-10

Similar Documents

Publication Publication Date Title
EP1141438B1 (fr) Dispositif auxiliaire pour application thermique d'un revetement sur des surfaces d'un espace interne
DE10230847B3 (de) Verfahren und Vorrichtung zur Innenbeschichtung von Hohlräumen durch thermisches Spritzen
EP0634293B1 (fr) Procédé et dispositif pour la réparation des cylindres d'une machine d'impression
EP1258540B1 (fr) Masque pour placer sur un bloc moteur lors de l'application thermique de revêtement des alésages des cylindres et procédé utilisant ce masque
EP1007271A1 (fr) Aube de turbine a gaz et procede permettant de la produire
DE102004038183A1 (de) Verfahren zur Bearbeiten von Zylinderkurbelwellengehäusen mit gespritzten Zylinderlaufbahnen
EP3798330B1 (fr) Procédé et installation de revêtement métallique
WO2000037789A1 (fr) Bloc-cylindres et procede de fabrication dudit bloc
EP2455510A2 (fr) Dispositif de revêtement thermique de surfaces intérieures de cylindres dans des carters
DE19910665A1 (de) Hilfsvorrichtung zum thermischen Beschichten von Flächen eines Innenraumes
EP1147240B1 (fr) Procede de revetement thermique d'une surface d'un compartiment interne et dispositif correspondant
DE19929247A1 (de) Verfahren zum thermischen Beschichten einer Fläche eines Innenraumes und Anordnung zur Durchführung des Verfahrens
DE102004038177B4 (de) Verfahren zum thermischen Beschichten einer gegossenen Zylinderbohrung
DE102004038182A1 (de) Verfahren zum spanabhebenden Bearbeiten von thermisch gespritzten Zylinderlaufbahnen
EP1153154B1 (fr) Procede et dispositif d'application thermique de revetement sur des surfaces d'un espace interne, en particulier sur des surfaces sur lesquelles se deplace le piston, d'un bloc-cylindres d'un moteur a combustion interne
DE19910577B4 (de) Verfahren und Anordnung zum thermischen Beschichten von Flächen eines Innenraumes, insbesondere von Zylinderlaufflächen eines Zylinderkurbelgehäuses einer Verbrennungskraftmaschine
EP0722375B1 (fr) Centre d'usinage de vilebrequins
DE102004038173B4 (de) Verfahren zum thermischen Spritzen von Zylinderlaufflächen bei mehrreihigen Motoren
DE102004038180A1 (de) Verfahren zur Herstellung einer thermisch beschichteten Zylinderlauffläche mit einer Endfase
DE19910578A1 (de) Verfahren zum thermischen Beschichten von Flächen eines Innenraumes, insbesondere von Zylinderlaufflächen eines Zylinderkurbelgehäuses einer Verbrennungskraftmaschine
DE102004038179A1 (de) Verfahren zur Herstellung einer thermisch beschichteten Zylinderlauffläche mit einer Einfuhrfase
DE102004038175A1 (de) Verfahren zur Vorbereitung von thermisch zuspritzenden Zylinderlaufflächen
DE4031284C2 (de) Vorrichtung zum taktweisen Bearbeiten von Werkstücken
DE102006049318B4 (de) Werkstückträger mit einer Aufnahmefläche aus Gruppen von untereinander verbundenen Hohlzylindern
EP1350862A1 (fr) Procédé et apparail d'application thermique d'un revêtement sur une surface

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

17P Request for examination filed

Effective date: 20010718

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20011114

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59904792

Country of ref document: DE

Date of ref document: 20030430

Kind code of ref document: P

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20030715

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

Ref document number: 1141438E

Country of ref document: IE

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20031230

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20151230

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20151229

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20151230

Year of fee payment: 17

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20161203

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170102

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161203

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161203

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20181231

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59904792

Country of ref document: DE

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230523