EP4058276A1 - Piece a resistance a l'usure par frottement amelioree - Google Patents
Piece a resistance a l'usure par frottement amelioreeInfo
- Publication number
- EP4058276A1 EP4058276A1 EP20817458.1A EP20817458A EP4058276A1 EP 4058276 A1 EP4058276 A1 EP 4058276A1 EP 20817458 A EP20817458 A EP 20817458A EP 4058276 A1 EP4058276 A1 EP 4058276A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- resin
- zone
- particles
- resistant
- wear
- 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
Links
- 238000005299 abrasion Methods 0.000 title abstract 2
- 239000011159 matrix material Substances 0.000 claims abstract description 63
- 229920005989 resin Polymers 0.000 claims abstract description 63
- 239000011347 resin Substances 0.000 claims abstract description 63
- 239000002245 particle Substances 0.000 claims abstract description 57
- 239000002131 composite material Substances 0.000 claims abstract description 37
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 35
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 35
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 19
- 239000012530 fluid Substances 0.000 claims description 40
- 238000004519 manufacturing process Methods 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 26
- 239000000758 substrate Substances 0.000 claims description 24
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 description 13
- 230000002787 reinforcement Effects 0.000 description 13
- 239000000835 fiber Substances 0.000 description 10
- 239000007787 solid Substances 0.000 description 8
- 229920001187 thermosetting polymer Polymers 0.000 description 8
- 229920001169 thermoplastic Polymers 0.000 description 7
- 238000005056 compaction Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000004416 thermosoftening plastic Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000004696 Poly ether ether ketone Substances 0.000 description 3
- 239000004697 Polyetherimide Substances 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 229920002530 polyetherether ketone Polymers 0.000 description 3
- 229920001601 polyetherimide Polymers 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000004634 thermosetting polymer Substances 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/005—Selecting particular materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
- B29C70/64—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres the filler influencing the surface characteristics of the material, e.g. by concentrating near the surface or by incorporating in the surface by force
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
-
- 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
- F16C33/205—Multilayer structures, e.g. sleeves comprising a plastic lining with two layers
-
- 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
- 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
- F16C33/28—Brasses; Bushes; Linings with embedded reinforcements shaped as frames or meshed materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2427/00—Use of polyvinylhalogenides or derivatives thereof as filler
- B29K2427/12—Use of polyvinylhalogenides or derivatives thereof as filler containing fluorine
- B29K2427/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/36—Application in turbines specially adapted for the fan of turbofan engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/30—Manufacture with deposition of material
- F05D2230/31—Layer deposition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/90—Coating; Surface treatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/10—Stators
- F05D2240/14—Casings or housings protecting or supporting assemblies within
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/40—Organic materials
- F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
- F05D2300/432—PTFE [PolyTetraFluorEthylene]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/40—Organic materials
- F05D2300/44—Resins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/603—Composites; e.g. fibre-reinforced
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/603—Composites; e.g. fibre-reinforced
- F05D2300/6033—Ceramic matrix composites [CMC]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/615—Filler
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- 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
- F16C2208/02—Plastics; Synthetic resins, e.g. rubbers comprising fillers, fibres
-
- 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
-
- 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
- F16C2208/22—Thermoplastic resins comprising two or more thermoplastics
-
- 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
- F16C2208/30—Fluoropolymers
- F16C2208/32—Polytetrafluorethylene [PTFE]
-
- 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
- F16C2208/80—Thermosetting resins
-
- 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
- F16C2208/80—Thermosetting resins
- F16C2208/82—Composites, i.e. fibre reinforced thermosetting resins
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- 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
- F16C2360/24—Turbochargers
Definitions
- the present invention relates to a part made of composite material with an organic matrix (“Organic Matrix Composite”; “OMC”) having improved resistance to wear by friction, as well as the manufacture of this part.
- OMC Organic Matrix Composite
- Organic matrix composites are often used in the conditions of parts in contact with each other with friction.
- the friction coefficients of the usual matrices of structural composites with a thermoset or thermoplastic organic matrix are relatively high.
- the contacts and friction encountered during operation can generate significant heating and wear.
- the invention relates to a part made of composite material with an organic matrix having on its surface a zone resistant to wear by friction comprising a resin in which particles of polytetrafluoroethylene are present.
- the area resistant to frictional wear of the part according to the invention has a reduced dynamic coefficient of friction and gives the part a significant improvement in frictional wear resistance compared to the incorporation of carbon fillers proposed by the prior art.
- the solution according to the invention makes it possible to keep a relatively simple manufacture for the part and does not create any additional bulk for the latter, the geometry and the dimensions of the part not being significantly modified.
- the invention makes it possible to dispense with the use of a metallic wear element attached and assembled by gluing to the part, this solution being able to lead to a more complex manufacture and to differential expansions not accommodated in operation.
- the mass content of polytetrafluoroethylene particles in the zone resistant to wear by friction is between 5% and 65%, for example between 10% and 60%.
- Such contents advantageously participate in further improving the resistance to frictional wear while avoiding any risk of altering the properties of the part made of composite material.
- the average size of the polytetrafluoroethylene particles is between 0.1 ⁇ m and 50 ⁇ m, or even between 0.5 ⁇ m and 50 ⁇ m or between 0.1 ⁇ m and 10 ⁇ m, or even between 0.5 ⁇ m. and 5 pm.
- average size denotes the dimension given by the statistical particle size distribution at half of the population, known as D50.
- the part is a turbomachine part, for example an aeronautical turbomachine part.
- the part can, for example, be a movable cowl of a thrust reverser (“transcowl”) or a fan cowl (“fancowl”).
- transcowl thrust reverser
- fancowl fan cowl
- the invention also relates to an assembly comprising a first part as described above and a second part, separate from the first part, in contact with the zone resistant to wear by friction of the first part.
- the first and second parts are intended to be in rubbing contact with each other on the frictional wear resistant area.
- the second part may have a structure as described above, that is to say be made of a composite material with an organic matrix and have on its surface a second zone resistant to wear by friction comprising a second resin in which are present second particles of polytetrafluoroethylene, the area resistant to frictional wear of the first part being in contact with the second area resistant to frictional wear.
- the invention also relates to a turbomachine comprising an assembly as described above.
- the invention also relates to a method of manufacturing a part as described above, comprising at least:
- a surface treatment of the substrate can be carried out before forming the layer comprising the resin in the fluid state and the polytetrafluoroethylene particles.
- a fibrous texture and optionally an adhesive can be positioned on the substrate before formation of said layer over it.
- the method is a method for manufacturing a part as described above, comprising at least:
- the method is a method for manufacturing a part as described above, comprising at least:
- the joint curing can be carried out by joint crosslinking (co-crosslinking) of the resin and of the matrix composition. This is the case when the resin and the matrix composition are thermosetting. Joint curing can still be achieved by joint solidification without co-crosslinking of the resin and the matrix composition. This is the case when the resin and the matrix composition are thermoplastic.
- FIG. 1 schematically illustrates a section of an exemplary part according to the invention.
- FIG. 2 schematically illustrates a section of an exemplary assembly according to the invention.
- FIG. 3 illustrates the product obtained after a first step of a first example of a method for manufacturing a part according to the invention.
- FIG. 4 illustrates the product obtained after a second step of the first example of a method for manufacturing a part according to the invention.
- FIG. 5 illustrates the product obtained after a first step of a second example of a method for manufacturing a part according to the invention.
- FIG. 6 illustrates the product obtained after a second step of the second example of a method for manufacturing a part according to the invention.
- FIG. 7 illustrates the product obtained after a first step of a third example of a method for manufacturing a part according to the invention.
- FIG. 8 illustrates the product obtained after a second step of the third example of a method for manufacturing a part according to the invention.
- FIG. 9 illustrates the product obtained after a third step of the third example of a method for manufacturing a part according to the invention.
- FIG. 10 is a comparative test result showing the differences in terms of dynamic friction coefficient between a part according to the invention and parts outside the invention.
- Figure 11 is a comparative test result showing the differences in terms of dynamic friction coefficient between a part according to the invention and parts outside the invention.
- FIG. 12 is a comparative test result showing the differences in terms of volume used after friction test between a part according to the invention and parts outside the invention.
- Part 1 is made of a composite material with an organic matrix and comprises a fibrous reinforcement densified by the organic matrix.
- the organic matrix is present in the porosity of the fibrous reinforcement and coats and connects the fibers of this reinforcement.
- the union of the fibrous reinforcement and the organic matrix forms a composite material with an organic matrix represented by the symbol 10 in Figures 1 to 4.
- the fibrous reinforcement can have various structures.
- the fibrous reinforcement can be formed by a stack of fibrous textures, such as two-dimensional fabrics or unidirectional sheets, or by a fabric obtained by three-dimensional weaving.
- the fibers forming the fibrous reinforcement can be carbon fibers, fibers of a ceramic material other than carbon, such as silicon carbide or alumina, glass fibers or polymeric fibers.
- the organic matrix of part 1 can be a thermoplastic polymer in the solid state or a thermosetting polymer in the polymerized and solid state.
- the organic matrix can be an epoxy matrix, a polyurethane matrix, a polyamide matrix, a polyetherimide (PEI) matrix or a polyetheretherketone (PEEK) matrix.
- the part 1 has on its surface S a zone 20 resistant to wear by friction which comprises a resin 24 in which particles 22 of polytetrafluoroethylene are present.
- a zone 20 resistant to wear by friction which comprises a resin 24 in which particles 22 of polytetrafluoroethylene are present.
- the dimensions of this zone 20 have been exaggerated for reasons of readability.
- the expression “polytetrafluoroethylene particles” is designated by “PTFE particles” or “particles”, and the term “frictional wear resistant zone” is referred to as "zone”.
- the resin 24 constitutes a solid matrix in which the particles 22 are present.
- the zone 20 may have a coefficient of dynamic friction less than or equal to 0.1, for example less than or equal to 0.06. The coefficient of dynamic friction can be measured by the alternating underload friction test method.
- Zone 20 is a surface part of the part 1 located between the external surface S of the part 1 and the fibrous reinforcement of the latter. Zone 20 may be in contact with the fibers of the fibrous reinforcement of part 1. In particular, particles 22 may be in contact with the fibers of the fibrous reinforcement and / or inserted between these fibers. As a variant, zone 20 can be separated from the fibers of the fibrous reinforcement by the organic matrix of part 1.
- the thickness e i0 of zone 20 may be less than or equal to 0.5 mm, for example between 0.01 mm and 0.3 mm.
- the zone 20 defines the outer surface S of the part 1 and is intended to be in contact and to rub with a second part, separate from the part 1, during use.
- FIG. 2 illustrates this aspect where a second part 2 is in contact with the zone 20 of the part 1.
- the part 1 and the second part 2 are intended to be in rubbing contact (shown by the arrows F) during use. It will be noted that the rubbing surface of the second part 2 which in contact with the zone 20 may or may not have a zone resistant to wear by friction of the same type as the zone 20.
- the particles 22 of PTFE are selectively located in the zone 20, that is to say only present at the level of the surface of the part 1, and are not present in the whole of the part. composite material 10 covered by zone 20. However, it does not depart from the scope of the invention if the particles 22 are present on the surface of the part 1 but also in the entire volume of the composite material 10 covered by the zone 20.
- the particles of PTFE can thus, according to one example, be integrated into the organic matrix of part 1.
- Resin 24 may be thermoplastic in the solid state or thermosetting in the polymerized and solid state.
- Resin 24 can be an organic resin.
- the resin 24 can be the same or different from the organic matrix.
- resin 24 can be an epoxy resin, a polyurethane resin, a polyamide resin, a polyetherimide resin or a polyetheretherketone resin.
- the content by mass of PTFE particles in zone 20 may be greater than or equal to 5%, for example greater than or equal to 10%.
- the content by mass of PTFE particles in zone 20 can be between 5% and 65%, for example between 10% and 60%.
- the average size of the PTFE particles can be greater than or equal to 0.1 ⁇ m, for example greater than or equal to 0.5 ⁇ m.
- the average size of the PTFE particles may be less than or equal to 50 ⁇ m, for example less than or equal to 10 ⁇ m, for example less than or equal to 5 ⁇ m, for example less than or equal to 2 ⁇ m.
- the mean size of the PTFE particles can be between 0.1 ⁇ m and 50 ⁇ m, for example between 1 ⁇ m and 50 ⁇ m or between 0.1 ⁇ m and 10 ⁇ m, for example between 1 ⁇ m and 10 ⁇ m, or between 0, 1 pm and 5 pm, for example between 1 pm and 5 pm, or alternatively between 0.1 pm and 2 pm, for example between 1 pm and 2 pm.
- the PTFE particles can be in the form of grains, fibrils or bundles of fibrils. In the form of fibrils or bundles, the greatest length can reach 0.05 mm.
- PTFE particles By way of example of PTFE particles which can be used, mention may be made of the PTFE particles (powder with an average diameter of 1 micrometer) sold under the reference 430935-100g by the company Sigma-Aldrich.
- the resin content by mass in zone 20 may be greater than or equal to 35%, for example greater than or equal to 40%.
- the resin content by mass in zone 20 can be between 35% and 95%, for example between 35% and 90% or between 40% and 95%, for example between 40% and 90%.
- FIGS. 3 and 4 illustrate the products obtained during two steps of a first example of the manufacturing process according to the invention.
- the zone 20 is formed on a substrate 10 made of a composite material with an organic matrix, the manufacture of which has been completed beforehand.
- the organic matrix of substrate 10 has been cured beforehand.
- the organic matrix of the substrate 10 is in the polymerized state in the case of a thermosetting matrix.
- This variant can, for example, be implemented within the framework of a repair of the substrate 10 which has undergone wear by friction with the second part 2 during its use or within the framework of the manufacture of a part intended for a first use (part in new condition).
- the product illustrated in FIG. 3 is formed which presents, on the one hand, the substrate 10 made of a composite material with an organic matrix and, on the other hand, a layer comprising the resin 23 in the fluid state in which are present the particles 22 of PTFE, this layer being present on the surface SI of the substrate 10.
- This layer may be in contact with the surface SI of the substrate 10.
- This layer comprising the fluid resin 23 and the particles 22 may be formed of different ways.
- the resin 23 can be deposited directly on the surface SI in the fluid state with or without the particles 22.
- the resin 23 in the fluid state comprising the particles can thus be deposited directly on the surface SI of the substrate 10. 22 as a mixture, or deposit first on the substrate 10 the resin 23 in the fluid state then the particles 22 or first the particles 22 then the resin 23 in the fluid state.
- the resin can be deposited in solid form on the surface S1, for example in the form of a film comprising the particles 22 or else in the form of a pulverulent mixture comprising the resin particles and the particles 22.
- a step of fluidizing this resin deposited on the substrate 10, for example by heating is carried out in order to obtain the product illustrated in FIG. 3.
- a preliminary treatment of the surface of the substrate 10 for example by sanding and / or sandblasting (plasma, corona, laser, etc.). This preliminary treatment of the surface may result in certain fibers of the fibrous reinforcement of the substrate 10 being exposed on the surface so that the fluid resin 23 and the particles 22 then come into contact with these exposed fibers.
- the hardening of the fluid resin 23 is carried out.
- This hardening can be carried out by cooling the product of FIG. 3, thus making it possible to set the resin when the latter is a thermoplastic resin, or by polymerization of the resin 23 when it is a thermosetting resin. This polymerization can be activated by heating.
- zone 20 is formed and the part made of composite material as illustrated in FIG. 4 is obtained.
- the adhesion of zone 20 to the underlying substrate 10 can be achieved by bonding with a deposited adhesive. beforehand on the surface of the substrate 10 and / or by penetration of the fluid resin 23 into the surface porosity of the substrate thus forming a plurality of anchoring points.
- This adhesion can also be achieved by local melting of the underlying substrate followed by cooling thus making it possible to jointly fix substrate 10 and zone 20, in particular in the case of a thermoplastic organic matrix.
- FIGS. 3 and 4 which has just been described concerns the manufacture of the part by forming the zone 20 on a substrate made of composite material with an organic matrix, the manufacture of which has been completed beforehand.
- a description will now be given, in conjunction with FIGS. 5 to 9, of the case where the resin and the particles are deposited before completion of the manufacture of the composite material with an organic matrix.
- FIGS. 5 and 6 illustrate a second example of a method for manufacturing a part according to the invention.
- a layer comprising the fluid resin 23 in which the particles 22 are present. intended to form the fibrous reinforcement of the composite material part to be obtained.
- the matrix composition 40 is intended to form the organic matrix of the part made of composite material to be obtained.
- the fibrous structure is formed by a stack of fibrous plies 30 impregnated with the matrix composition 40 which may be an organic, thermoplastic or polymeric polymer. thermosetting.
- the matrix composition 40 which may be an organic, thermoplastic or polymeric polymer. thermosetting.
- the resin 23 and the particles 22 can be deposited directly as a mixture or separately, and in the fluid state or in the solid state.
- thermoplastic polymers it is then possible to carry out a heat treatment of the product of FIG. 5 so as to co-polymerize the matrix composition 40 and the resin 23 (in the case of two thermosetting polymers) in order to obtain the part comprising a composite material 110 with a matrix. organic having on its surface S the zone 20 (figure 6).
- cooling can be carried out in order to jointly harden the resin 23 and the matrix composition 40 and obtain the part made of composite material.
- the compaction can make it possible to d 'obtain a composite material 110 with an organic matrix having a thickness e 2 o which is less than the thickness e 2 of the fibrous structure impregnated with matrix composition 40, for example less than or equal to 90% of e 2 .
- the invention is not, however, limited to the formation of a fluid resin layer on a structure pre-impregnated with a matrix composition.
- the layer comprising the fluid resin 23 and the particles 22 is first formed on the surface S3 of a dry fibrous structure (not prepreg).
- the fluid matrix composition 40 is introduced into the fibrous structure. It should be noted that it is possible to carry out a compaction before or after this introduction of matrix composition 40.
- the introduction of the matrix composition 40 can be carried out by injection or infusion.
- the joint curing of the matrix composition 40 and of the resin 23 is then carried out as described above, by co ⁇ polymerization or joint cooling.
- FIGS. 10 to 12 These figures provide results of comparative tests between a part according to the invention and parts outside the invention.
- the parts evaluated were parts made of composite material with an organic matrix having on their surface a resin in which particles of different types were present at a rate of more than 20% by mass (between 30-60% by mass in the resin layer of area).
- the particles present had an average size of about 1 ⁇ m.
- “R” denotes a carbon / epoxy composite not exhibiting particles on its surface
- “1” denotes the results of the part according to the invention having particles of PTFE on its surface.
- the references “2" to "5" are composites with particles other than PTFE on their surface.
- FIG. 10 shows an experimental result showing the evolution of the dynamic friction during the test carried out.
- the test carried out consisted of alternating displacements under constant compressive force.
- the part according to the invention comprising the PTFE particles exhibits, during the friction test, a dynamic friction coefficient much lower than that of the other parts made of composite material tested. It appears in Figure 11 that the part according to the invention has an average dynamic friction coefficient on the test close to 0.05, which is much lower than the average dynamic friction coefficient of the other evaluated parts which is greater than 0 , 3.
- FIG. 12 illustrates the result obtained at the end of the test in terms of wear of the rubbing contact surfaces of the parts evaluated. It can be seen that the part having the used volume, corrected for the volume deformed by compression during the tests, the least important is the part according to the invention.
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- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1912610A FR3102948B1 (fr) | 2019-11-12 | 2019-11-12 | Pièce à résistance à l’usure par frottement améliorée |
PCT/FR2020/051993 WO2021094672A1 (fr) | 2019-11-12 | 2020-11-04 | Piece a resistance a l'usure par frottement amelioree |
Publications (1)
Publication Number | Publication Date |
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EP4058276A1 true EP4058276A1 (fr) | 2022-09-21 |
Family
ID=69468860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP20817458.1A Pending EP4058276A1 (fr) | 2019-11-12 | 2020-11-04 | Piece a resistance a l'usure par frottement amelioree |
Country Status (5)
Country | Link |
---|---|
US (1) | US11867073B2 (fr) |
EP (1) | EP4058276A1 (fr) |
CN (1) | CN114746254A (fr) |
FR (1) | FR3102948B1 (fr) |
WO (1) | WO2021094672A1 (fr) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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ES2124111B1 (es) * | 1994-11-15 | 1999-08-16 | Sintermetal Sa | Conjunto de embolo y guia de su vastago para amortiguadores hidraulicos. |
CN100420867C (zh) * | 2003-04-23 | 2008-09-24 | 格莱西尔加洛克轴承公司 | 复合轴承 |
US8753614B2 (en) * | 2005-08-30 | 2014-06-17 | International Technology Center | Nanodiamond UV protectant formulations |
EP2202264B1 (fr) * | 2008-12-24 | 2018-04-18 | Safran Aero Boosters SA | Procédé de fabrication par moulage d'un élément structurel de machine avec une surface abradable |
FR3027974B1 (fr) * | 2014-11-05 | 2016-12-23 | Snecma | Dispositif de maintien destine a etre present a la surface d'une piece en materiau composite |
US11225559B2 (en) * | 2017-03-10 | 2022-01-18 | Ticona Gmbh | Polyester polymer compositions |
-
2019
- 2019-11-12 FR FR1912610A patent/FR3102948B1/fr active Active
-
2020
- 2020-11-04 US US17/774,340 patent/US11867073B2/en active Active
- 2020-11-04 EP EP20817458.1A patent/EP4058276A1/fr active Pending
- 2020-11-04 WO PCT/FR2020/051993 patent/WO2021094672A1/fr unknown
- 2020-11-04 CN CN202080078783.9A patent/CN114746254A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
FR3102948A1 (fr) | 2021-05-14 |
US20220403754A1 (en) | 2022-12-22 |
CN114746254A (zh) | 2022-07-12 |
FR3102948B1 (fr) | 2022-06-24 |
US11867073B2 (en) | 2024-01-09 |
WO2021094672A1 (fr) | 2021-05-20 |
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