WO2013139402A1 - Revêtement thermique d'une pile d'éléments et pile d'éléments - Google Patents

Revêtement thermique d'une pile d'éléments et pile d'éléments Download PDF

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Publication number
WO2013139402A1
WO2013139402A1 PCT/EP2012/055247 EP2012055247W WO2013139402A1 WO 2013139402 A1 WO2013139402 A1 WO 2013139402A1 EP 2012055247 W EP2012055247 W EP 2012055247W WO 2013139402 A1 WO2013139402 A1 WO 2013139402A1
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WO
WIPO (PCT)
Prior art keywords
component
stack
coating
opening
spacer
Prior art date
Application number
PCT/EP2012/055247
Other languages
German (de)
English (en)
Inventor
Peter Ernst
Bernd DISTLER
Original Assignee
Sulzer Metco 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
Application filed by Sulzer Metco Ag filed Critical Sulzer Metco Ag
Priority to PCT/EP2012/055247 priority Critical patent/WO2013139402A1/fr
Publication of WO2013139402A1 publication Critical patent/WO2013139402A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/26—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction characterised by the use of particular materials
    • 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
    • C23C4/01—Selective coating, e.g. pattern coating, without pre-treatment of the material to be coated
    • 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
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • 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
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/14—Special methods of manufacture; Running-in
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/04—Connecting-rod bearings; Attachments thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J7/00—Piston-rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2223/00—Surface treatments; Hardening; Coating
    • F16C2223/30—Coating surfaces
    • F16C2223/42—Coating surfaces by spraying the coating material, e.g. plasma spraying

Definitions

  • the invention relates to a method for thermally coating a component stack and to a device having a component stack according to the preamble of the independent claims 1 and 14.
  • the prior art discloses methods and devices for coating components for industrial production processes, wherein it is intended to produce large quantities as efficiently and inexpensively as possible so that the components are combined in the form of a stack and coated successively in a single processing step.
  • the components are components with through openings, for example bearing components, in particular connecting rods.
  • connecting rods consist of a small connecting rod eye, a shaft and a large connecting rod eye, the large connecting rod eye comprising a split component seat for the bearing of the connecting rod on a crankshaft.
  • Such connecting rods are installed in large numbers, for example in reciprocating internal combustion engines for passenger cars and trucks, but also in engines for ships or in other machines.
  • connecting rods can also be used in other machines in which a linear movement in a rotary motion, or vice versa, must be implemented.
  • Corresponding machines can eg Reciprocating compressors, pumps, looms and a variety of other machines or technical equipment.
  • a bearing component in particular a connecting rod, is often produced by first providing a molded part by forging, glazing or a powder metallurgy process. To form the split bearing seat a connecting rod cap, or a component cover is separated from the rest of the connecting rod. The connecting rod cap is fastened in the finished state usually by means of connecting rod bolts to the remaining connecting rod, whereby the necessary screw holes can be drilled before or after the separation. In the assembled state of the connecting rod is then followed by a mechanical processing of the bearing seat for receiving, of bearing shells, which are arranged between the connecting rod and crankshaft to form a sliding bearing.
  • the mechanical processing of the bearing seat and the bearing shells usually includes a coarse, a fine and a superfinishing by turning, fine turning or honing.
  • recesses must be provided in the bearing seat of the connecting rod, which cooperate with corresponding lugs of the bearing shell halves, so that a rotation of the bearing shells is prevented in the operating state.
  • the two bearing shell halves must be machined with the highest precision, since on the one hand, the inner surfaces of the bearing shell halves together with the crankshaft slide bearing with a required sliding bearing fit, and on the other hand, the outer surfaces of the bearing shells must be adapted to the bearing seat of the large connecting rod of the connecting rod. To ensure a secure fit of the bearing shell halves ensure that the bearing shell halves between the conrod cap, ie the bearing cap and the remaining connecting rod are clamped. Thus, it can not be ruled out that when screwing the connecting rod cap tensions arise that can cause deformations that lead to fit inaccuracies.
  • EP 0 635 104 B1 it is proposed to dispense entirely with the bearing shells in the bearing seat and instead to provide the bearing seat surface with a thermal spray coating, that is to say with a surface layer as the bearing layer.
  • a central point according to EP 0 635 104 B1 is that the bearing layer after the coating process, analogously to the production of the split bearing seat, is also divided by fracture separation. However, it has been shown that the fracture separation of the bearing layer actually causes more problems than are solved by this measure.
  • the method proposed in EP 2 029 317 B1 envisages that, during the coating process for applying the component coating, a masking agent is arranged perpendicular to a parting line on the component seat surface in such a way that a recess, ie a coating-free region, is provided in the component coating , is generated in a predetermined width.
  • Essential for this solution is that the component coating in the area of the separating surface after the coating process is not separated by fracture separation.
  • several components are combined in the form of a component stack and coated in succession in a single processing step with a thermal spraying device.
  • the individual components in the component stack are hereby spaced by means of discs.
  • a disadvantage of this known method that due to the described arrangement of the components and the discs as a construction pile, in the stack opening in the direction of the stack axis, a substantially continuous layer is formed.
  • a substantially continuous layer is considered a coating with a smooth, to understand coherent and uniform layer course, .if a coherent component coating on the components and discs, which forms in the direction of the stack axis in the stacking opening, so that the components must be laboriously separated from the component stack after coating.
  • the object of the invention is therefore to provide an improved industrial production method for the thermal coating of a component stack, wherein the known from the prior art harmful effects on the component coating, which are caused by the separation of the components from the stack of components, are avoided.
  • the invention thus relates to a device with a component stack and a method for thermally coating a component stack comprising a component and a stack component, wherein the component and the stack component are aligned with respect to a stack axis such that the component stack is formed along the stack axis and the component stack is coated with a thermal coating process.
  • a component surface of the component and an adjacent component surface of the stack component only partially overlap.
  • Essential for the invention is thus that the component surface and the component surface of the adjacent stack component overlap only partially.
  • the component and the stack component to overlap only partially they are arranged in the component stack in such a way that either the component and the stack component are stacked staggered or the component surface and component surface always have different large surfaces or different shapes.
  • components and stack components with the same component surfaces and component surfaces are simply staggered in the simplest embodiment.
  • An only partially overlapping of the component surface and component surface is also present, if advantageously one of the two surfaces is larger than the others, so that, starting from the larger surface, it is partially overlapped by the smaller surface.
  • Particularly advantageous in industrial production processes is the combination and coating of several components and stack components in the form of a component stack. Due to the arrangement of the components according to the invention and the stack components in the component stack, it becomes possible for the first time for the component coating formed in the direction of the stacking axis of the component stack to have a coating with a sudden change in the layer profile at the contact points of the stack Component and the stack component is.
  • a sudden change in the course of the layer is to be understood as meaning that the coating formed along the stack axis, in particular in the stack opening, has predetermined breaking points, for example a curved or staggered layer course at the contact points of the component and the stack component.
  • the component and the stack component can be separated, without the coated inner radial boundary surfaces and / or outer peripheral surfaces, in particular the component seat surfaces and Component seat surfaces to damage or destroy, since the layer can be cleanly separated by the invention at the predetermined breaking points.
  • the method according to the invention can, as the person skilled in the art immediately understands, both be used for coating an outer peripheral surface of the components of the component stack or of the component stack itself and also during thermal coating of an inner surface of the components, for example of inner surfaces of through-openings formed in the component. Holes or the like can be used advantageously.
  • the component has a continuous component opening and the stack component has a continuous component opening, and the component and the stack component are aligned with respect to the stack axis such that the component stack with the component opening and the component opening during the coating process forms a continuous stack opening, that the component surface in the region of the component opening and the component surface in the region of the adjacent component opening overlap only partially.
  • the device comprises a holder for the component stack, so that the components and the stack components can be arranged and fastened in this advantageous.
  • this embodiment allows the components and stack components to be secured so that they are fixed during stacking and do not slip during the coating process.
  • the device comprises a thermal spray device, in particular a rotating plasma torch, along the stack axis to the inner radial boundary surfaces and / or outer peripheral surfaces, in particular through the stacking opening to the component seat surfaces and component seating surfaces, is guided, wherein the thermal spraying device rotates about the stacking axis.
  • the device comprising the component stack or the component stack and the holder is advantageous for the device comprising the component stack or the component stack and the holder to be rotatable about the thermal spraying device.
  • another advantageous measure may be a simultaneous rotation of the thermal spray device and the device comprising the component stack or the component stack and the support, whereby, for example, components having a complex geometry are coated and / or themselves more rapidly and efficiently forms a better component coating.
  • the components can be staggered in a special embodiment so that adjacent component surfaces, in particular component surfaces in the region of the component openings, only partially overlap, and forms a predetermined breaking point at the points of contact of adjacent components.
  • the stack component can be a spacer with a continuous spacer opening, so that the component stack is built up of components and spacers.
  • the spacers between the component and the further component are arranged. This embodiment has the advantage that in the direction of the stack axis during the coating process in the region of the spacers sudden changes in the course of the layer, ie predetermined breaking points, are formed
  • the spacer is formed in a special embodiment in the form of a disc, in particular in the form of a disc with a round or an oval spacer opening and / or wherein an internal cross section and / or an outer cross section of the spacer along the stacking axis polygonal, or concave, or convex may be formed.
  • the spacer may additionally or alternatively be formed in the form of a disc with a round or an oval outer contour.
  • the spacer opening and the inner cross section of the spacer in the direction of the stack axis may have a different shape, so that they are advantageously adapted to the particular application and the formation of predetermined breaking points by means of a sudden or curved layer course is selectively induced at the points of contact.
  • the spacers can be formed as part of the component, which is particularly efficient for industrial production methods, as can be dispensed with an additional and separate from the component spacers.
  • the component is a bearing component, in particular a connecting rod.
  • bearing components are known, for example, as connecting rods with a small connecting rod eye, a shaft and a large connecting rod eye, wherein the large connecting rod eye usually comprises a split bearing seat for the bearing of the connecting rod to a crankshaft.
  • Bearing components and connecting rods are used in large quantities, e.g. installed in reciprocating internal combustion engines for passenger cars and trucks, but also in engines for ships or in other machines in which a linear movement in a rotary motion, or vice versa, must be implemented.
  • the component comprises a divided component seat formed from a component bottom and a component cover, wherein a coated component seat surface with a component coating of a component layer material is formed in the component seat by means of a coating process.
  • a masking agent is arranged on the component seat surface, so as to form a coating-free region, perpendicular to a separation line in such a way that the masking agent forms the masking agent Coating of the component seat surface is prevented with the component layer material in the masked area.
  • a recess in a predefinable width is formed in the component coating.
  • the masking agent is in this case formed as a separate component, not connected to this element.
  • the formation of predetermined breaking points in the coating can be combined with the production of coating-free, strip-shaped recesses which are produced over the entire width of the component or of the component stack. Due to this combination possibility, adjacent components can be separated from the component stack and at the same time the component lid along a separation surface of the component, preferably by means of fracture separation, are separated, with adverse effects on the component coating can be avoided.
  • the masking agent is formed in the form of a masking rod, in particular in the form of a masking rod with a round, oval or polygonal cross-section, in particular with a rectangular or square cross-section.
  • at least two components are arranged as a component stack or as a component stack on the holder and / or the masking agent is anchored in the holder and / or a guide element for the masking agent is provided in the spacer.
  • both an inner surface, ie the inner radial boundary surface, internally coated and an outer circumferential surface of the component stack can be coated externally coated with the method according to the invention, wherein the component stack can be easily broken down into its components again after the coating process without that the coating is damaged.
  • the component stack itself can be rotated about the stack axis during the coating process, either a non-rotating or a rotating thermal spray device, in particular a rotating or non-rotating plasma torch used to coat the inner radial boundary surface and / or the outer peripheral surface depending on the application can be.
  • the invention also relates to a device with a component stack comprising a thermal spraying device, a component and a stack component, wherein the component and the stack component are aligned with respect to a stack axis such that the stack of components is formed along the stack axis.
  • a component surface of the component and an adjacent component surface of the stack component only partially overlap.
  • the component has a continuous component opening and the stack component has a continuous component opening, and the component and the stack component are aligned with respect to the stack axis such that the component stack with the component opening and the component opening during the coating process so forms a continuous stack opening, that the component surface in the region of the component opening and the component surface in the region of the adjacent component opening overlap only partially.
  • Fig. 1 shows the state of the art using the example of a component stack with
  • FIG. 2 shows a component stack, the inventive arrangement of the
  • Fig. 4 shows an inventive component stack with discs as
  • FIG. 6 shows a connecting rod as an exemplary embodiment of a component.
  • Fig. 1 shows a schematic representation according to EP 2 029 317 B1 of a component stack V with components 1 1 'with component openings 1 1 1', e.g. Bearing components, in particular connecting rods, wherein between the components 1 1 'spacers 14' are provided with spacer openings 141 ', which are formed from the prior art as discs, so that the components 1 1' after completion of the coating process can be allegedly better separated.
  • component openings 1 1 1' e.g. Bearing components, in particular connecting rods, wherein between the components 1 1 'spacers 14' are provided with spacer openings 141 ', which are formed from the prior art as discs, so that the components 1 1' after completion of the coating process can be allegedly better separated.
  • the components 1 1 'and the spacers 14' are stacked on a holder 2 'in such a way that all component seat surfaces 1 16', for example, large connecting rods, all components 1 1 'in a coating process by means of a known rotary thermal spray device R', which is a plasma torch here, can be coated.
  • a known rotary thermal spray device R' which is a plasma torch here
  • the thermal spraying device R ' rotateates about the stacking axis A and is guided in the vertical direction along the stacking axis A in such a way that all the component seat surfaces 16' of all components 11 'can be successively coated with a component coating 11'.
  • a masking agent M ' which in the present example is a masking rods M', is provided at each of the opposite regions perpendicular to the parting line of the component seat surfaces 16, so that in the component coating 11 'coating-free recesses, ie Areas without coating arise.
  • the recess is not shown in Fig. 1 for reasons of clarity.
  • the recess is preferably a strip-shaped recess which extends over the entire width of the component 11 ', Thus, for example, is generated over the entire thickness D of the connecting rod during the coating process, so that in the area in which the component lid 1 14 'from the rest of the component 1 1' at a separation surface, for example, by fracture separation or another separation method is separated, no Coating in the form of the component coating 1 17 'is present.
  • a homogeneous component coating 1 forms along the stack axis A 'in the stack opening 13' of the component stack 1 ' 17 'off.
  • a homogeneous component coating 1 17 ' is, as mentioned above, a component coating 1 17' to be understood in the direction of the stacking axis A over the entire stack of components 1 'substantially contiguous coating with a smooth and uniform layer course and the same layer thicknesses based on the components 1 1 ', the spacers 14' and formed at the points of contact of adjacent components and spacers.
  • the component 1 for example, the bearing component, in particular the connecting rod, stacked with the component opening 1 1 1 and the stack component 12 with the component opening 121 in the form of a stack of components 1 with the stacking opening 13 stacked in that the component surface 1 12 in the region of the component opening 1 1 1 and the component surface 122 in the region of the adjacent component opening 121 only partially overlap.
  • the only partially overlapping surface is shown hatched in Fig. 2. As can be seen in FIG. 2, this can only partially overlap the component surface 12 and the component surface 122 in the case of an equally large component surface 12 and component surface 122 by a spatial displacement of the component 11 and the stack component 12 with respect to the stack axis A. will be realized.
  • Fig. 3 shows schematically an embodiment, being formed by alternately arranging the components 1 1 with the component openings 1 1 1 and stack components 12 with the component openings 121 of the component stack 1 with the stack opening 13.
  • the thermal spraying device R rotates about the stacking axis A and is thereby guided in the vertical direction along the stacking axis A, so that all the component seat surfaces 16 of all components 11 are successively coated with a component coating 11.
  • a coating with sudden changes in the course of the layer or a curved layer course Due to the staggered staple of the components 1 1 with the component openings 1 1 1 and the stack components 12 with the component openings 121, formed at the points of contact of the component 1 1 and the stack component 12 during the coating process, along the stack axis A in the stack opening 13 of the Component stack 1, a coating with sudden changes in the course of the layer or a curved layer course.
  • the areas with abrupt changes in the course of the layer correspond to predetermined breaking points at which the component 1 1 and the stack component 12 are advantageously broken after the coating process when the component 1 1 is separated from the stack component 12, for example, since the coating preferably breaks in these areas.
  • Fig. 4 shows a particularly preferred embodiment, which differs from the embodiment shown in Figure 3 in that the stacking component 12 is a spacer 14, the spacer surface 142 is larger than the component surface 1 12 and the component surface 1 12 the Spacer surface 142 partially overlapped.
  • the coating along the stacking axis A is uneven, ie in the component coating 1 17 are predetermined breaking points exactly at the points of contact, ie where the spacers 14 are, so that the component 1 1 from an adjacent component 1 1 after the Coating, for example, can be advantageously separated because the coating breaks in the region of the spacer 14.
  • FIGS. 5a-5h Various special embodiments of component stacks 1 are shown in FIGS. 5a-5h, which comprise components 11 with component openings 11 and spacers 14 with spacer openings 141, wherein various preferred embodiments of internal cross-sections of spacers 14 can be seen.
  • Fig. 5a shows schematically a spacer 14 with a trapezoidal inner cross section, which becomes smaller with increasing distance from the axis A.
  • 5b and 5c show a rectangular inner cross section, wherein in FIG. 5b, the spacer surface 142 partially overlaps the component surface 112, and in FIG. 5c, conversely, the component surface 112 partially overlaps the spacer surface 142.
  • 5d shows a spacer 14 whose inner cross-section is convex in the direction of the stack axis A, while spacers can be seen in FIGS. 5e-5g whose inner cross-sections are polygonal.
  • Fig. 5h shows a spacer 14 with a concave in the direction of the stack axis A inner cross-section.
  • FIG. 6 schematically shows a component 1 1 produced according to the invention, in particular a bearing component 15 or a connecting rod 15.
  • the connecting rod 15 has been produced, for example, in a sintering or forging method from a component 11.
  • the connecting rod 15 comprises a component bottom 1 13, which is connected via a connecting rod shaft S in a conventional manner with a small connecting rod 151.
  • the component cover 1 14 forms the component bottom 1 13 a split component seat 1 15, wherein in the component seat 1 15 for supporting a crankshaft KW a with a component coating 1 17 from a bearing layer material coated component seat surface 1 16 is formed.
  • the split bearing seat 5 has been separated at a separation surface 1 19 by fracture separation.
  • the component cover 1 14 is in the installed state of the component bottom 1 13, ie to the rest of the connecting rod 15, for example by means
  • Screwed connecting rod which are not shown for reasons of clarity in Fig. 6.
  • the recess 1 18 was before the fracture separation of the large connecting rod 152, which is formed by the component bottom 1 13 and the component cover 1 14, already during the coating of the component seat surface 1 16 with the component coating 1 17 generated by using the marking means M.
  • the marking means M is arranged during the coating process for applying the component coating 1 17 perpendicular to the dividing line T on the component seat surface 1 16, that in the bearing layer 6, the coating-free recess 1 18 is formed in the form of a strip of width B.
  • the invention provides a method for thermal coating of a component stack and a device with a component stack, which make it possible to produce sudden changes in the layer course in the direction of the stack axis at the points of contact of adjacent components and thus to induce predetermined breaking points in the component coating and components, e.g. Bearing components or connecting rods to produce with a component coating on the component seat surface.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

L'invention concerne un procédé de revêtement thermique d'une pile d'éléments (1), comprenant un élément (11, 15) et un composant empilable (12, 14). L'élément (11, 15) et le composant empilable (12, 14) sont orientés par rapport à un axe de pile (A), de sorte que la pile d'éléments (1) est formée le long de l'axe de pile (A), et la pile d'éléments (1) est revêtue par un procédé de revêtement thermique. Selon l'invention, une surface (112) de l'élément (11, 15) et une surface adjacente (122) du composant empilable (12, 14) ne se chevauchent qu'en partie. L'invention concerne par ailleurs un dispositif comprenant une pile d'éléments (1).
PCT/EP2012/055247 2012-03-23 2012-03-23 Revêtement thermique d'une pile d'éléments et pile d'éléments WO2013139402A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/055247 WO2013139402A1 (fr) 2012-03-23 2012-03-23 Revêtement thermique d'une pile d'éléments et pile d'éléments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/055247 WO2013139402A1 (fr) 2012-03-23 2012-03-23 Revêtement thermique d'une pile d'éléments et pile d'éléments

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WO2013139402A1 true WO2013139402A1 (fr) 2013-09-26

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB948384A (en) * 1960-06-06 1964-02-05 Ramsey Corp Improvements in and relating to piston rings for internal combustion engines
JPS54162635A (en) * 1978-06-15 1979-12-24 Kawasaki Heavy Ind Ltd Line explosive spraying method
EP0498479A1 (fr) * 1991-02-02 1992-08-12 Ae Piston Products Limited Piston
GB2262945A (en) * 1992-01-03 1993-07-07 Cofap Thermal spraying of piston rings with molybdenum alloy
EP0635104B1 (fr) 1993-02-08 1996-12-18 Sintermetallwerk Krebsöge Gmbh Procede pour fabriquer une piece comportant au moins un siege de palier en deux parties
DE19720627A1 (de) * 1996-05-16 1997-11-20 Cummins Engine Co Inc Bschichteter Kolbenring und Herstellungsverfahren hierfür
EP2029317B1 (fr) 2006-09-15 2010-08-18 ThyssenKrupp Metalúrgica Campo Limpo Ltda. Procédé de fabrication d'une bielle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB948384A (en) * 1960-06-06 1964-02-05 Ramsey Corp Improvements in and relating to piston rings for internal combustion engines
JPS54162635A (en) * 1978-06-15 1979-12-24 Kawasaki Heavy Ind Ltd Line explosive spraying method
EP0498479A1 (fr) * 1991-02-02 1992-08-12 Ae Piston Products Limited Piston
GB2262945A (en) * 1992-01-03 1993-07-07 Cofap Thermal spraying of piston rings with molybdenum alloy
EP0635104B1 (fr) 1993-02-08 1996-12-18 Sintermetallwerk Krebsöge Gmbh Procede pour fabriquer une piece comportant au moins un siege de palier en deux parties
DE19720627A1 (de) * 1996-05-16 1997-11-20 Cummins Engine Co Inc Bschichteter Kolbenring und Herstellungsverfahren hierfür
EP2029317B1 (fr) 2006-09-15 2010-08-18 ThyssenKrupp Metalúrgica Campo Limpo Ltda. Procédé de fabrication d'une bielle

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