EP4284965A1 - Élément de palier lisse multicouche - Google Patents

Élément de palier lisse multicouche

Info

Publication number
EP4284965A1
EP4284965A1 EP22706225.4A EP22706225A EP4284965A1 EP 4284965 A1 EP4284965 A1 EP 4284965A1 EP 22706225 A EP22706225 A EP 22706225A EP 4284965 A1 EP4284965 A1 EP 4284965A1
Authority
EP
European Patent Office
Prior art keywords
layer
plain bearing
bearing element
weight
sliding
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.)
Pending
Application number
EP22706225.4A
Other languages
German (de)
English (en)
Inventor
Günter EITZINGER
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.)
High Tech Coatings GmbH
Original Assignee
High Tech Coatings GmbH
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 High Tech Coatings GmbH filed Critical High Tech Coatings GmbH
Publication of EP4284965A1 publication Critical patent/EP4284965A1/fr
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble metals
    • C22C5/04—Alloys based on a platinum group metal
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/14—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C14/00—Alloys based on titanium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble metals
    • C22C5/06—Alloys based on silver
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • 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
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/04—Diffusion into selected surface areas, e.g. using masks
    • 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
    • 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
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • 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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • 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
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/201—Composition of the plastic
    • 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
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/203—Multilayer structures, e.g. sleeves comprising a plastic lining
    • 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
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/208—Methods of manufacture, e.g. shaping, applying coatings
    • 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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • 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
    • F16C2204/00—Metallic materials; Alloys
    • 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
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/20—Thermoplastic resins
    • F16C2208/40—Imides, e.g. polyimide [PI], polyetherimide [PEI]
    • F16C2208/42—Polyamideimide [PAI]
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/60—Thickness, e.g. thickness of coatings
    • 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
    • F16C2360/00—Engines or pumps
    • F16C2360/23—Gas turbine engines

Definitions

  • the invention relates to a multilayer sliding bearing element comprising a sliding layer which comprises a metallic composition formed from at least three elements A, B and C as the main component.
  • the invention relates to a plain bearing comprising at least one multi-layer plain bearing element and a counter-body sliding thereon.
  • Multi-layer plain bearing elements which are made of layers of different composition and have, for example, a support layer for structural strength, a bearing metal layer as an emergency running layer and a sliding layer for sliding contact with the component to be stored.
  • a radial concentration gradient of components of the layer is formed within a layer in order to be able to meet this discrepancy in the requirements placed on a plain bearing even better.
  • AT 412 877 A discloses an alloy consisting of at least three components A, B, C, which form at least a first matrix and a soft phase dispersed therein, with a first surface and a second surface opposite thereto, with the proportions of the components A, B, C on the alloy in the areas of the first and the second surface are different from one another, and wherein at least one of the components forms a hard phase and at least one other of the components forms another matrix different from the first matrix, the first Matrix present at least in the area of the first surface and the other matrix at least in the area of the second surface, and the hard phase is dispersed both in the first and in the other matrix.
  • AT 515 107 A4 discloses a hardness gradient in a tin-based alloy with a magnesium content, to which zinc is additionally added for this purpose, the zinc content being selected from a range with a lower limit of 0.5% by weight and an upper limit of 6.5% by weight.
  • the ternary eutectic consumes only part of the magnesium, which results in the precipitation of coarser Mg2Sn grains. An increase in the hardness of the overlay can thus be achieved with a negligible drop in ductility.
  • the direction of segregation of the coarser Mg2Sn grains can be reversed, so that a hardness gradient with increasing hardness in the direction of the running surface can be formed at the same time during the production of the overlay by centrifugal casting.
  • a better adaptation to the hard supporting metal layer can be achieved by the hardness gradient in that the bonding zone to the supporting metal layer does not have too high a strength and brittleness of the bonding zone can thus be better avoided.
  • the bond strength of the composite material can be improved.
  • zinc causes an improvement in the solid solution strengthening and the adaptability of the layer.
  • a “shape gradient” within a layer is also known from the prior art in order to be able to better adapt its properties to the requirements.
  • AT 517 383 A1 describes a plain bearing element comprising a support layer and a sliding layer, the sliding layer being made of silver or of silver with a maximum content of other metals of 5% by weight, selected from a group consisting of Cu, Sb, Mo, Co, where the overlay has a microstructure with grains and has an overlay thickness, and the microstructure over the overlay thickness from a globular habit of the grains in the area of a second surface of the overlay closer to the support layer into an at least approximately columnar habit with a length This stretching of the grains changes in the region of a first surface of the overlay that is remote from the support layer.
  • AT 517 717 A4 describes a method for depositing a layer on a plain bearing element blank from the gas phase in a process gas, also for improving the property profile of a plain bearing element by forming a geometric gradient includes or consists of a base element, is produced by at least partial atomization of the target and subsequent precipitation of the atomized target components on the plain bearing element blank, with a target being used which has at least one particle-fining component in the form of a gas and/or a chemical compound of this gas and/or or that a process gas is used to which the grain-refining gas is added.
  • a layer is thus produced which is coarser-grained in the area of the running surface, ie that surface which is in sliding contact with another component, and which is finer-grained in the area below relative to the coarse-grained area.
  • the coarse grain gives the layer improved shrinkability.
  • the layer also has good mechanical strength, which is due to the fine grain.
  • these finer-grained areas provide support for the overlying coarser-grained areas.
  • the object of the present invention is to provide an improved slide bearing.
  • the object of the invention is achieved with the multi-layer plain bearing element mentioned at the beginning, in which it is provided that for each of the elements A, B and C in the axial direction and optionally a concentration gradient is formed in the radial direction of the multi-layer plain bearing element, and/or in which it is provided that the sliding layer is made up of at least four, in particular at least five, partial layers which are arranged one above the other in the radial direction, and for each of the elements A, B and C within the overlay a concentration gradient is formed.
  • the object of the invention is achieved with the plain bearing mentioned at the outset, which has the multi-layer plain bearing element according to the invention.
  • the advantage here is that the overlay can be better adapted to the diverging property requirements. This makes it possible to better combine several properties in the sliding layer, so that the sliding layer can also be better used as a direct coating on a component. This allows not only a simplification of the process of manufacturing a plain bearing. Tolerances can also be reduced by directly coating one or both components that are in tribological contact.
  • This design of the sliding layer stress peaks in the interface between the carrier and the sliding layer can be avoided by means of adapted moduli of elasticity (of the carrier and the sliding layer).
  • the fatigue strength and the ductility of the sliding layer can not only be adjusted in layers, but can also be adjusted accordingly in one layer (partial layer) in the axial direction.
  • the sliding layer can have different degrees of hardness, strength, plastic deformability, precipitation sizes in different areas (zones), for example on the sliding surface itself.
  • the at least three elements A, B and C are contained in each of the sub-layers, whereby according to a further embodiment it can be provided that each of the sub-layers has a different concentrations of the at least three elements A, B and C.
  • the sliding layer preferably has a layer thickness of at least 40 ⁇ m to a maximum of 150 ⁇ m.
  • tolerance chains e.g. planetary carrier bearing, planetary carrier, planetary axle, planetary axle bearing, planetary gear, sun gear, ring gear, etc.
  • inlet adjustments occur.
  • particle embedding capabilities and energy dissipation via phase transformations are also reduced.
  • the tolerances resulting from an unfinished coating become significant, without realizing further benefits from particle embedding or phase change energy.
  • each of the partial layers has a minimum layer thickness of 4 ⁇ m.
  • the mechanical and physical properties are changed abruptly. This sudden change can lead to maximum mechanical loads at the interface and thus become a weak point in the overall system.
  • - Element A is selected from a group comprising aluminum, copper, nickel, palladium, silver, iron, titanium and/or alloys of these elements and other alloys, such as in particular austenitic steels, e.g. X6CrNiMoTil7-12-2, Monel, bronzes, CuSnö , CuSn8, CuAllOFe, CuA15Fe3Mn2, CuA110Fe5Ni5, CuBe2, CuNiBe.
  • austenitic steels e.g. X6CrNiMoTil7-12-2, Monel, bronzes, CuSnö , CuSn8, CuAllOFe, CuA15Fe3Mn2, CuA110Fe5Ni5, CuBe2, CuNiBe.
  • the element B is a metal which forms intermetallic phases or mixed crystals with the element A or acts as a co-refiner for the element A, and/or
  • the element B is selected from a group comprising Cu, Si, Mg, Zn, Cr, Ni, Sn, Al, Fe, Ti, In, Ge, Te, W, C, Be, Sc, V, Mo, B, Pd, Au, with the proviso that element B is different from element A, and/or
  • the element C is selected from a group comprising Cu, Al, Pd, Au, Ag, Pb, Bi, Sn, In, Sb, C, with the proviso that the element C is different from the element A and the element B.
  • the metallic composition also contains an element D for which a concentration gradient is formed in the axial direction and/or radial direction, the element D being selected from a group comprising Ag, Pb, Bi , Sn, In, Sb, C, with the proviso that element C is not equal to element A and element B and element C.
  • phase transition points such as eutectics, etc.
  • a targeted diffusion at elevated temperatures in order to modify properties (e.g. in the case of PbSn layers, Sn diffusion into the underlying Ag or Cu containing layer) and thereby an improvement in the mechanical properties of this layer with a simultaneous softer top layer, such as pure lead, can be achieved.
  • the element A is present in a proportion selected from a range from 10% to 60% by weight, and/or
  • the element B is present in a proportion selected from a range from 3% to 40% by weight, and/or
  • the element C is present in a proportion selected from a range from 20% to 60% by weight, and/or
  • the element D is present in a proportion selected from a range from 5% to 30% by weight.
  • the differentiated requirements of each individual layer in the overall system under consideration can be better met.
  • a wide variety of materials can already achieve the required properties in the layer. Stress maxima in the interface can thus be reduced by means of adapted properties (modulus of elasticity, fatigue strength, deformability, etc.) and the adhesive strength on the substrate can be improved.
  • a gradient with desired mechanical and physical properties can be created in the layer.
  • E-modulus, fatigue strength and deformability are important properties, but in addition the tribological properties, in the direction of the surface of the layer system, an ever greater importance. These include more abrasive and more adhesive.
  • element A is formed by copper, element B by tin and element C by lead, since these metals have proven themselves in plain bearings and can be deposited relatively easily using a PVD process, which the formation of the concentration gradient(s) can be realized more easily.
  • an additized polymer layer is applied to the sliding layer.
  • this polymer layer preferably has a layer thickness of at least 4 ⁇ m and at most 30 ⁇ m. With a layer thickness of less than 4 ⁇ m, it could be observed that the polymer layer partially wears out before the end of the running-in phase, which means that the sliding layer is already exposed to higher loads in the running-in phase. With a layer thickness of more than 30 ⁇ m, a lubricating gap of a size that could impair the operation of the multi-layer plain bearing element would arise after the running-in layer had completely worn away.
  • the optimal layer thickness of the polymer layer depends heavily on the roughness of the component to be coated, the total tolerances and deformations under load. Good results were achieved in a combination of resilience and running-in support with polymer layer thicknesses in the range from 8 ⁇ m to 20 ⁇ m.
  • the counter-body also has a coating that is optimized with regard to emergency running properties, which means that greater fail-safety of the plain bearing can be achieved. This is particularly advantageous in critical plain bearing applications, such as in aviation.
  • FIG. 1 shows a section of a sliding layer on a carrier in cross section
  • a metallic multi-layer plain bearing element 1 in particular a radial plain bearing element, is shown in section in a side view.
  • the multi-layer plain bearing element 1 is preferably intended for use in the engine industry or in engines, but can also be used in other plain bearing applications.
  • the multi-layer plain bearing element has a carrier 2 .
  • a sliding layer 4 is arranged on the carrier 2, i.e. a surface 3 of the carrier 2, in particular directly on the surface 3 of the carrier 2.
  • the carrier 2 can have any shape, in particular if the sliding layer 4 is provided as a direct coating of the carrier 2 .
  • the carrier 2 has the usual plain bearing element shapes.
  • the carrier 2 can be designed in the form of a bush or in the form of a half-shell.
  • the plain bearing can have a third division, so that the multi-layer plain bearing element 1 is combined with two other plain bearing elements to form a plain bearing, with at least one of the two other plain bearing elements also can be formed by the multi-layer plain bearing element 1.
  • the multi-layer plain bearing element does not cover an angular range of 180 ° but an angular range of 120°.
  • the bearing mount can be a connecting rod eye, for example, but can also be designed differently.
  • the carrier 2 can also be multi-layered, as is shown in Fig.
  • the carrier 2 can have a supporting layer 5 and a bearing metal layer 6 arranged thereon.
  • Other intermediate layers are also possible as an alternative or in addition to this, for example a diffusion barrier layer or a binding layer, it also being possible for several intermediate layers to be present in the form of combinations of the layers mentioned.
  • the support layer 5 or the carrier 2 is preferably made of steel, but can also be made of other suitable materials, such as bronze.
  • the support layer 5 can also be formed by the component that has the multi-layer plain bearing element 1 by coating it directly in the bearing area, as has already been explained.
  • bearing metal layer that may be present can consist of a copper-based alloy or an aluminum-based alloy, as are known from the prior art for this purpose.
  • the bearing metal layer can consist of a copper-based alloy according to DIN ISO 4383, such as CuSnlO, CuA110Fe5Ni5, CuZn31Si, CuPb24Sn2, CuSn8Bil0, CuSn4Zn.
  • DIN ISO 4383 such as CuSnlO, CuA110Fe5Ni5, CuZn31Si, CuPb24Sn2, CuSn8Bil0, CuSn4Zn.
  • this enumeration of possible bearing metal alloys should not be understood as limiting.
  • binding layer or diffusion barrier layer that may be present can also consist of a material known for this purpose from the prior art.
  • the main component of the sliding layer 4 is a metallic composition, in particular a metallic alloy, which is formed from at least three elements A, B and C, in particular metallic elements or alloys thereof.
  • “Main component” means that the metallic composition accounts for at least 80% by weight, in particular at least 90% by weight, of the overlay 4 . Of the Other components such as ceramic particles, or particles of an organic polymer, or fibers, etc., can make up the remainder to 100% by weight. However, the sliding layer 4 preferably consists of 100% by weight of the metallic composition of the at least three elements A, B and C.
  • a concentration gradient is formed for the three elements in an axial direction 7 of the multi-layer plain bearing element 1, which in FIG. 2 runs perpendicular to the plane of the paper and is represented by a cross. This means that the concentration of the three elements changes over the axial width of the multi-layer plain bearing element 1.
  • a concentration gradient can be formed for at least one of the elements A, B and C in a radial direction 8 of the multi-layer plain bearing element 1.
  • Concentration gradients can preferably be formed for all three elements A, B and C in the radial direction 8 of the multi-layer plain bearing element 1 .
  • the changes in concentration of the elements A, B and C in the axial direction 7 and optionally the radial direction 8 can be designed to run continuously. However, there is also the possibility that the concentration changes in the radial direction are partially abrupt, so that the sliding layer 4 no longer appears as a single layer, but that partial layers or layers can be distinguished within the sliding layer 4 .
  • 1 shows an embodiment variant with five partial layers 9, 10, 11, 12 and 13. However, the sliding layer 4 can also have only four partial layers 9, 10, 11 and 12 or more than five partial layers 9, 10, 11, 12 and 13, for example six or seven or eight or nine or ten, etc.
  • the sub-layers 9 - 13 are arranged one above the other in the radial direction, in particular sub-layer 13 is arranged directly on sub-layer 12, sub-layer 12 directly on sub-layer 11, sub-layer 11 directly on sub-layer 10 and sub-layer 10 directly on sub-layer 9 .
  • the concentration of at least one of the elements A, B and C of the metallic composition can remain the same or be (constantly) changing.
  • the sliding layer 4 with the individual layers 9 - 13, it is also possible within at least one of the individual layers 9 - 13, preferably in several sub-layers 9 - 13, in particular in all sub-layers 9 - 13, in the radial direction 8 and/or in the axial direction 7 a concentration gradient for the elements A, B and C or several of the elements A, B and C may be formed.
  • each of the sub-layers 9-13 has each of the elements A, B and C or, in general, each of the elements of the metallic composition. According to one embodiment variant, it can be provided that each of the individual layers 9 - 13 has a different concentration of the at least three elements A, B and C.
  • the metallic composition also contains an element D for which a concentration gradient is formed in the axial direction and/or radial direction.
  • element D for which a concentration gradient is formed in the axial direction and/or radial direction.
  • the explanations regarding the concentration gradients of the elements A, B and C can be applied accordingly.
  • the concentration gradients for the elements AD can have the following values shown in Table 1 in an embodiment variant of the sliding layer 4 that appears microscopically as a single layer.
  • the concentrations are given in % by weight.
  • the concentration gradients can have a linear, exponential, logarithmic, etc. course in the radial direction 8 and optionally in the axial direction 7 .
  • Concentration gradients for the elements AD are shown in Table 2 for the radial direction 8 and in Table 3 for the axial direction 7, with the information here again being in % by weight.
  • the element A can be selected from a group comprising or consisting of aluminum, copper, nickel, palladium, silver, aluminum, copper, nickel, palladium, silver, iron, titanium and/or alloys of these elements and other alloys, such as in particular austenitic steels, eg X6CrNiMoTil7-12-2, Monel, bronze, CuSn ⁇ , CuSn8, CuAllOFe, CuA15Fe3Mn2, CuA110Fe5Ni5, CuBe2, CuNiBe.
  • the element A can be contained in the sliding layer 4 in a proportion which is selected from a range from 10% by weight to 60% by weight. In the case of a three-layer sliding layer 4, for example, this total proportion can be divided between the sub-layers 9 - 12 as follows.
  • Table 4 gives another example of the distribution of the total content of A in the overlay 4 over the sub-layers 9-13. The proportions are given in % by weight. "B” means the beginning and “E” means the end of the respective partial layer 9 - 13, each viewed in the radial direction. The sub-layers 9-13 are only indicated with the reference number. For example, “9 B” means sub-layer 9 at the beginning of sub-layer 9. In addition, Table 4 also lists the concentrations for the other elements B - D, and also an example of a specific element in brackets.
  • the element B can be a metal which forms intermetallic phases or mixed crystals with the element A or has a grain-refining effect on the element A.
  • the element B can be selected from a group comprising or consisting of Cu, Si, Mg, Zn, Cr, Ni, Sn, Al, Fe, Ti, In, Ge, Te, W, C, Be, Sc, V, Mo, B, Pd, Au with the proviso that element B is not equal to element A.
  • the element B can be contained in the sliding layer 4 in a proportion which is selected from a range of 3% by weight to 40% by weight.
  • the proportion of element B can increase, for example, from 0% by weight in a first range to 30% by weight in a second range.
  • the element C can be selected from a group comprising or consisting of Cu, Al, Pd, Au, Ag, Pb, Bi, Sn, In, Sb, C, with the proviso that the element C is not equal to the element A and the element B.
  • the element C can be contained in the sliding layer 4 in a proportion which is selected from a range from 20% by weight to 60% by weight.
  • the proportion of element C can increase, for example, from 50% by weight in a first range to 100% by weight in a second range.
  • the element D can be selected from a group comprising or consisting of Ag, Pb, Bi, Sn, In, Sb, C, with the proviso that the element C is not equal to the element A and the element B and the element C is.
  • the element D can be contained in the sliding layer 4 in a proportion which is selected from a range from 5% by weight to 30% by weight.
  • the proportion of element D can increase, for example, from 0% by weight in a first range to 40% by weight in a second range.
  • the metallic composition of the overlay can also comprise or consist of at least one element from a group C, O, N have.
  • the total proportion of the at least one further element in the composition can be selected from a range from 0.2% by weight to 1% by weight.
  • the element A is formed by copper, the element B by tin and the element C by lead.
  • the sum of the proportions of the components of the sliding layer 4 always add up to 100% by weight.
  • overlays 4 are immiscible systems with alternation, e.g. B. in the gradient of the sliding layer 4 of element C matrix and element D incorporation on element D matrix with element C incorporations or element D as the last layer without incorporations possible. But also an element C matrix with element A or element B or deposits of intermetallic compounds from element A and element B for fine grain formation and strength optimization and a subsequent layer with a gradient to only element C or a mixture of elements C and D is possible.
  • an additized polymer layer 14 can be applied to the sliding layer 4 .
  • this polymer layer 14 the running-in of the multi-layer plain bearing element 1 can be improved.
  • the polymer layer 14 can be formed from a bonded coating, for example.
  • the bonded coating can be in solid form or, preferably, in liquid form.
  • the methods for applying the anti-friction coating to a carrier surface are known and therefore do not need to be explained in more detail.
  • the anti-friction coating can be brushed on, sprayed on, surfaced, etc., for example.
  • the bonded coating can have at least one organic binder, at least one solid lubricant, hard particles, metal particles, at least one solvent, dyes, etc.
  • the polymer layer 14 acquires its additives with at least one solid lubricant, hard particles, metal particles, a dye, etc.
  • the organic binder or the polymeric base is preferably a polyimide, a polyamide-imide, a polyester, a phenolic resin.
  • organic binding agents can also Organic-based agents can be used, such as epoxides or polybenzimidazole (PBI). Mixtures of at least two of the polymers mentioned and modifications of these polymers can also be used as the organic binder.
  • the organic binder is present in the bonded coating in an uncured (and preferably dissolved) form as a monomer or generally as a precursor(s) of the polymer.
  • the polymer is formed during curing or as a result of curing.
  • the polymer is preferably a polyamideimide.
  • the proportion of the polymeric binder in the polymer layer 14 that can be produced from the bonded coating is preferably selected from a range with a lower limit of 25% by weight and an upper limit of 50% by weight.
  • composition of the bonded coating can therefore differ from the composition of the polymer layer if the bonded coating contains a solvent. In this case, the proportion of solvent in the anti-friction coating must be taken into account.
  • the solid lubricant particles can be selected from a group comprising or consisting of graphite, MOS2, WS2, Sn, SnS and SnS2, ZnS, ZnS2, hexagonal BN, Sn alloys, CF2, PbF2, PTFE, etc. Mixtures of two are also possible or several different solid lubricant particles can be used. In principle, these solid lubricants are already well known from the prior art for this purpose.
  • the total proportion of the solid lubricant particles in the polymer layer 14 that can be produced from the bonded coating can be selected from a range with a lower limit of 25% by weight and an upper limit of 60% by weight.
  • the polymer layer 14 or the bonded coating can have hard particles in order to be able to adjust the hardness of the polymer layer.
  • These hard particles can be selected from a group comprising or consisting of metal oxide particles such as CrOs, Fe3O4, ZnO, CdO, Al2O3, SiO2, MnO, TiO2, mixed oxide particles such as bismuth vanadate (BiVO4), chromium antimony rutile, clay, talc, aluminum silicates , such as mullite, magnesium silicates such as amosite, antophyllite, chrysotile, carbides such as SiC, CaC2, M02C, WC, metal particles such as Al, Ag, Sn, Zn, Ag, Ba, bronze, Cd, Co, Cu, In, alloy particles of these metals, metal nitrides such as SisN4, AIN, FcsP, metal borides such as Fe2B, Ni2B, FeB, BaSCU, chlorinated hydrogen carbonates, flu
  • Mixtures of different additives or hard materials for example two, three, four or more different additives or hard materials, can also be used.
  • the proportion of hard particles in the polymer layer 14 can be selected from a range with a lower limit of 1% by weight and an upper limit of 20% by weight.
  • the solvent that may be present in the bonded coating can be selected from a group comprising or consisting of xylene, dimethylformamide, methyl ethyl ketone, gamma-butyrolactone, dimethylacetamide, N-methyl-2-pyrrolidone, l-butylpyrrolidin-2-one, etc. There are also Mixtures of at least two different solvents can be used.
  • the proportion of the at least one solvent in the bonded coating can be selected from a range with a lower limit of 50% by weight and an upper limit of 80% by weight.
  • the overlay 4 can have a layer thickness of at least 40 ⁇ m to a maximum of 150 ⁇ m.
  • Each of the partial layers 9-13 can have a layer thickness 16 of at least 4 ⁇ m.
  • none of the partial layers 9 - 13 has a layer thickness of more than 50 ⁇ m.
  • the overlay 4 preferably has a constant layer thickness 15 over the entire area. In the case of axial concentration gradients, differences in layer thickness over the entire area in the range of ⁇ 15% are possible.
  • the polymer layer 14 can have a layer thickness 17 of at least 4 ⁇ m and at most 30 ⁇ m.
  • the plain bearing 18 comprises at least one multi-layer plain bearing element 1 according to the invention in the form of the carrier 2 with the sliding layer 4 arranged directly thereon, and a counter-body 19 sliding thereon, for example a shaft, a journal, an axle, a bore, a gear wheel, a connecting rod, etc.
  • the counter-body also has a coating 21 on a surface 20 facing the sliding layer 4, which is optimized with regard to emergency running properties.
  • This optimization can be in the interaction with the oil used and, if necessary, oil additives and/or also with regard to thermal and mechanical stability and/or also with regard to welding tendency (adhesive wear) and/or adaptation during running-in or in operating conditions that lead to mixed friction or solid-state friction contacts.
  • Pure DLC aC:H layers can significantly reduce the coefficient of friction, but they are sensitive to interactions with oil additives, such as MoDTC, which can result in high levels of wear in tribological applications with a high proportion of mixed friction.
  • Systems of CrC/aC:H layer systems were tested, which, despite the significantly reduced hardness of the layer, showed a significant improvement in wear in tribological tests due to the reaction with MoDTC (molybdenum dithio carbamate).
  • wear-resistant materials are typically used on the one hand (steel, hardened steel, hard chrome layers, electroless nickel-phosphorus coating, etc.), and systems with a combination of adaptability, fatigue strength, corrosion stability and emergency running properties on the counter surface. If the minimum lubricating gap in systems lubricated with pressure oil is in the range of a few pm, small deviations in shape are the cause of very high local overloads. For this reason, overlays and running-in layers are provided in critical applications, which always wear out in combination with very high specific local loads when mixed friction occurs, thereby compensating for the shape deviation and/or the deformation of the components under load.
  • the sliding layer 4 By using the sliding layer 4, the composition of which changes from several elements over the total layer thickness and/or in the axial course, or by forming the sliding layer 4 with the sub-layers 9 - 13, it can be better adapted to the requirements placed on it and even better take on more tasks.
  • the adhesion to the carrier 2 can be improved in this way, which means that a separate binding layer can be dispensed with. Furthermore, the fatigue strength can be improved in this way.
  • the sliding layer 4 is preferably deposited on the carrier 2 by means of a PVD method (Physical Vapor Deposition).
  • the sliding layer 4 is deposited using a sputtering method.
  • pure metals can be used as targets for the metallic elements A, B, C, optionally D and/or other elements from which the metallic composition is composed.
  • master alloys it is also possible to use master alloys in some cases.
  • the carrier 2 (possibly after mechanical cleaning) can be subjected to a so-called sputter cleaning in order to prepare its surface for the deposition of the overlay 4 .
  • the aim of surface cleaning is to remove any reaction layers that may have formed during production and/or with the surrounding atmosphere in the coating system immediately before coating.
  • the cleaning can be done with a linear ion source, for example.
  • a bias voltage between -200 V and -1000 V can be applied to the substrate.
  • the sputter cleaning is preferably carried out with a pulsed voltage with a frequency selected from one Range between 50 kHz and 500 kHz. This cleaning can take place over a period of time between 5 minutes and 120 minutes.
  • a voltage can be applied to the carrier 2, which is selected from a range with a lower limit of 0 V and an upper limit of 150 V.
  • the deposition can at least partially with a pulsed voltage with a frequency selected from a range between 50 kHz and 500 kHz, and/or at least partially with a DC voltage.
  • the time of the deposition depends on the desired layer thickness according to the above statements.
  • this can be designed in such a way that unwanted diffusion processes during the deposition can be prevented or at least reduced by permanently or sequentially inserting a material with good miscibility to the diffusing element.
  • immiscible systems systems with elements that are immiscible
  • materials with a high volumetric diffusion factor which typically have a low melting point
  • materials with good miscibility or eutectics are present at the boundaries to the neighboring layers, these materials with a high volume diffusion factor will accumulate there over time.
  • An example of this is the Ag-Bi system on a layer of the elements Ag, Ni and Cu.
  • NiCu is now inserted into the layer in fine-crystal form, this diffusion can be prevented or reduced.
  • Other examples of this variant are: Ag base layer with BiSnCu overlay, or CuSn base layer Ni diffusion barrier layer with AlSn20 overlay that contains small amounts of Cu, which is precipitated at the grain boundaries during cooling and can reduce Sn diffusion.
  • high energy input e.g. during emergency operation or through Adaptive wear, etc.
  • phase transformations e.g. during emergency operation or through Adaptive wear, etc.
  • An example is the melting of a PbSn eutectic in mixed friction contact. Sn diffuses into the underlying Cu matrix, resulting in greater strength.
  • the soft, highly plastic lead is abraded by the high load and mixed friction, thereby distributing the load over a larger area where, ideally, hydrodynamic conditions are created again.
  • Further examples of this variant are CuPb, AlSn20, BiSn.
  • a steel was used as carrier 2 for all examples.
  • the sliding layer 4 was deposited by means of a sputtering process using the above parameters.
  • element A copper was used as element A, tin as element B and lead as element C.
  • the element A with a concentration between 92% by weight - 95 wt% deposited.
  • the element B was deposited with a concentration of 5% by weight-8% by weight starting at the interface to the carrier 2 and then with decreasing concentration in the direction of the sliding surface.
  • Element C was only deposited after a layer thickness of about 4 ⁇ m-10 ⁇ m, starting with at least 8% by weight and increasing in the direction of the sliding surface to 90% by weight-100% by weight.
  • a sliding layer 4 was thus produced, which comprises the following in the order given, starting from the substrate: an adhesion layer (partial layer 9, layer thickness 8 + 1.5 m), an immediately adjoining transitional layer (partial layer 10, layer thickness 4 + 1 p in ), an immediately adjoining core layer (partial layer 11, layer thickness 38 + 3 pin), an immediately adjoining further transition layer (partial layer 12, layer thickness 10 + 2 pin), an immediately adjoining top layer (partial layer 13, layer thickness 5 + 2).
  • am an adhesion layer
  • partial layer 9, layer thickness 8 + 1.5 m an immediately adjoining transitional layer
  • partial layer 11, layer thickness 38 + 3 pin an immediately adjoining further transition layer
  • partial layer 12 layer thickness 10 + 2 pin
  • an immediately adjoining top layer partial layer 13, layer thickness 5 + 2).
  • am an adhesion layer
  • the overlay 4 had the following composition shown in Table 5.
  • the remainder figure relates to the remaining proportion of 100% by weight.
  • Table 5 Composition of the sliding layer 4 in % by weight
  • a sliding layer with a total layer thickness of 60 ⁇ m was produced.
  • the following concentration curves for the elements A, B and C were formed. The percentages are to be understood as % by weight.
  • Element A is a matrix material for forming the fatigue strength of the sliding layer, such as Cu
  • element B is a hardening element that forms intermetallic phases with A in order to improve the fatigue strength and the transition to the carrier material, such as Sn
  • Element C compared to A, is a softer material to develop the sliding properties and the ability to embed dirt particles, such as Pb.
  • Examples 3 to 10 for overlays 4 with sub-layers 9 - 13 are:
  • Sublayer 9 CuA19Ni3Fe2 - sublayer 10 CuA19Ni3Fe2 80% with lead 20% - sublayer
  • Sub-layer 9 CuNi - sub-layer 10 AgCuNi - sub-layer 11 AgCuNiBi - sub-layer 12 BiAg, total thickness of the sliding layer 4 30 ⁇ m to 100 ⁇ m.
  • Sub-layer 9 CuCr - sub-layer 10 AgCuCr - sub-layer 11 Ag - polymer layer 14 PAI with M0S2 and graphite, total thickness of the overlay 4 30 ⁇ m to 80 ⁇ m.
  • Sub-layer 9 NiCu30Fe 100% - sub-layer 10 of NiCu30Fe 95% Ag 5% on NiCu30Fe 20% Ag 80% - sub-layer 11 Ag 80% NiCu30Fe 5% Bi 15% - sub-layer 12 Ag 71% NiCu30Fe 4% Bi 25%, sub-layer 13 Bi 100%, total thickness of the sliding layer 4 - 30 ⁇ m to 100 ⁇ m.
  • Sub-layer 9 CuCr - sub-layer 10 CuCr 90% Ag 10% to Ag 90% CuCr 10% - sub-layer 11 Ag 90% CuCrlO% Ag 97% CuCr 3% - sub-layer 12 Ag 100%, sub-layer 13 polymer layer 14 PAI with M0S2 and graphite, Total thickness of the overlay 4 - 30 pm to 80 pm. example 9
  • Sub-layer 9 1.4301 (X5CrNil8-10) 100% - sub-layer 10 1.4301 100% beginning Ag 90% 1.4301 10% end - sub-layer 11 Ag 97% 1.4301 3% - sub-layer 12 Ag 97% 1.4301 3% beginning Ag 75% 1.301 2% Bi 23% end - partial layer 13 Bi 90% Ag 9% 1.4301 0.5%, total thickness of the sliding layer 4 40 pm to 100 pm.
  • Sub-layer 9 1.4301 (X5CrNil8-10) 100% - sub-layer 10 1.4301 100% beginning Al 95% 1.4301 5% end - sub-layer 11 AlCul 95% Sn 5% beginning, AlCul 80% 20% Sn - sub-layer 12 AlCul 80% Sn 20% Start, AlCul 68% Sn 32% end - partial layer 13 AlCul 68% Sn 32% start Sn 97% Cu3% end, total thickness of the sliding layer 4 40 pm to 100 pm.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

L'invention concerne un élément de palier lisse multicouche (1) comprenant une couche anti-frottement (4) qui contient, en tant que constituant principal, une composition métallique formée à partir d'au moins trois éléments, A, B et C ; pour chacun des éléments A, B et C, un gradient de concentration est formé dans le sens axial (7) et, le cas échéant, dans le sens radial (8) dudit élément de palier lisse multicouche (1).
EP22706225.4A 2021-01-28 2022-01-26 Élément de palier lisse multicouche Pending EP4284965A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50052/2021A AT524722A1 (de) 2021-01-28 2021-01-28 Mehrschichtgleitlagerelement
PCT/AT2022/060023 WO2022159997A1 (fr) 2021-01-28 2022-01-26 Élément de palier lisse multicouche

Publications (1)

Publication Number Publication Date
EP4284965A1 true EP4284965A1 (fr) 2023-12-06

Family

ID=80461103

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22706225.4A Pending EP4284965A1 (fr) 2021-01-28 2022-01-26 Élément de palier lisse multicouche

Country Status (3)

Country Link
EP (1) EP4284965A1 (fr)
AT (1) AT524722A1 (fr)
WO (1) WO2022159997A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412877B (de) * 2003-07-01 2005-08-25 Miba Gleitlager Gmbh Schichtwerkstoff
DE102007049041A1 (de) * 2007-10-11 2009-04-16 Daimler Ag Gleitlager mit Gleit- und Einlaufschicht sowie dessen Herstellungsverfahren
WO2013133381A1 (fr) * 2012-03-07 2013-09-12 Ntn株式会社 Palier fritté
AT515107B1 (de) 2014-01-31 2015-06-15 Miba Gleitlager Gmbh Gleitlager
AT517717B1 (de) 2016-01-28 2017-04-15 Miba Gleitlager Austria Gmbh Verfahren zur Abscheidung einer Schicht auf einem Gleitlagerelementrohling
AT517383B1 (de) 2015-07-06 2017-03-15 Miba Gleitlager Austria Gmbh Gleitlagerelement
AT519007B1 (de) * 2016-09-27 2018-03-15 Miba Gleitlager Austria Gmbh Mehrschichtgleitlagerelement

Also Published As

Publication number Publication date
AT524722A1 (de) 2022-08-15
WO2022159997A1 (fr) 2022-08-04

Similar Documents

Publication Publication Date Title
EP1764522B1 (fr) Elément de palier
DE112004001910B4 (de) Gleitschicht
AT411229B (de) Schichtverbundwerkstoff für gleitelemente und verfahren zu seiner herstellung
DE102013227186B4 (de) Gleitlackbeschichtung und Gleitlager-Schichtverbundwerkstoff mit einer solchen
EP1624081B1 (fr) Alliage d'aluminium pour surfaces chargées tribologiquement
EP2370704B1 (fr) Élément de glissement
EP2931519B1 (fr) Matériau composite de palier lisse
AT503987B1 (de) Gleitlack
EP1475449B1 (fr) Alliage d'aluminium forgeable
AT506641B1 (de) Gleitlager
DE102005045701A1 (de) Gleitlagerverbundwerkstoff
EP1717469A2 (fr) Elément de palier
WO2019052903A1 (fr) Vernis de glissement, élément de glissement pourvu d'un tel vernis et utilisation de celui-ci
DE102017216109A1 (de) Gleitlack, Verfahren zu dessen Herstellung, Gleitelement mit einem solchen und dessen Verwendung
AT511434B1 (de) Gleitlager
WO2012012818A1 (fr) Procédé pour la fabrication d'un palier lisse à plusieurs couches
WO2022159997A1 (fr) Élément de palier lisse multicouche
WO2009049725A2 (fr) Palier lisse comportant une couche de glissement et une couche de rodage et son procédé de production
AT505860B1 (de) Mehrschichtgleitlager
AT505257B1 (de) Verfahren zur herstellung einer bindeschicht für ein lagerelement
WO2009049726A2 (fr) Palier lisse comportant une couche de glissement et une couche de rodage
WO1998017833A2 (fr) Materiau pour palier lisse compose d'alliage d'aluminium exempt de silicium hormis les impuretes inherentes a l'elaboration de l'acier
AT14431U1 (de) Verfahren zur Herstellung eines Gleitlagers

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

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

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230828

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)