EP1951443A1 - Composant, en particulier une piece moulee comprenant un revetement - Google Patents

Composant, en particulier une piece moulee comprenant un revetement

Info

Publication number
EP1951443A1
EP1951443A1 EP06804340A EP06804340A EP1951443A1 EP 1951443 A1 EP1951443 A1 EP 1951443A1 EP 06804340 A EP06804340 A EP 06804340A EP 06804340 A EP06804340 A EP 06804340A EP 1951443 A1 EP1951443 A1 EP 1951443A1
Authority
EP
European Patent Office
Prior art keywords
component according
upper limit
lower limit
microns
range
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.)
Granted
Application number
EP06804340A
Other languages
German (de)
English (en)
Other versions
EP1951443B1 (fr
Inventor
Gerold Stetina
Christian Sandner
Raimund Ratzi
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.)
Miba Sinter Austria GmbH
Original Assignee
Miba Sinter Austria 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 Miba Sinter Austria GmbH filed Critical Miba Sinter Austria GmbH
Publication of EP1951443A1 publication Critical patent/EP1951443A1/fr
Application granted granted Critical
Publication of EP1951443B1 publication Critical patent/EP1951443B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249994—Composite having a component wherein a constituent is liquid or is contained within preformed walls [e.g., impregnant-filled, previously void containing component, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/252—Glass or ceramic [i.e., fired or glazed clay, cement, etc.] [porcelain, quartz, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/254—Polymeric or resinous material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/259—Silicic material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less

Definitions

  • the invention relates to a component comprising at least one component, in particular molding, which consists of a powder or a powder mixture of metallic and optionally contained non-metallic components and is prepared by pressing this powder or the powder mixture and subsequent sintering, a method for Production of a component from a powder or a powder mixture of metallic and optionally contained non-metallic components by pressing this powder or the powder mixture and subsequent sintering and a method for producing cooperating surface portions of components of a device, of which at least one of the components of a powder or a Powder mixture of metallic and optionally contained therein non-metallic components by compression of this powder or the powder mixture and subsequent sintering is prepared and in we The two surface sections in the pre-definable tolerance fields are produced relative to each other.
  • a typical sintering process comprises the steps of filling a sinterable material into a mold, pressing it to a so-called green body, sintering this green compact at sintering temperatures, optionally followed by homogenization annealing, and subsequent calibration and optionally curing.
  • sintered components are also used for bearing elements, for example in the form of metallic, self-lubricating and maintenance-free sliding bearings.
  • bearing elements for example in the form of metallic, self-lubricating and maintenance-free sliding bearings.
  • thick-walled sintered plain bearings which contain solid lubricants such as graphite MoS 2 , WS 2 or thick-walled sintered plain bearings which are oil-soaked are part of this type of bearing element.
  • powder mixtures are prepared which already contain solid lubricants. This powder mixture is pressed and then sintered.
  • solid lubricants are suitable that do not decompose at the sintering temperatures of about 800 ° C.
  • Oil-soaked plain bearings have the disadvantage that they contain oil and thus can not be used in many areas.
  • the operating temperature of this type of storage is severely limited, since drying out of the oil takes place at elevated temperatures.
  • a plain bearing material is known, which is produced by sintering of Cu particles.
  • the sintered layer has thicknesses below 1 mm and the porosities produced by the sintering process are 35% by volume.
  • Lubricants in the form of MoS2 and graphite are introduced into the pores.
  • the porosity generated by the sintering process is very much determined by the particle size distribution, so often the desired homogeneity can not be achieved.
  • the present invention has for its object to reduce the design effort for components of components that contain at least one sintered molded part.
  • This object of the invention is achieved in that at least one surface portion of the component, which is provided for cooperation with a further surface portion of another component while applying a pressure force acting between the two surface portions, is coated with a lubricating varnish.
  • the surprising advantage resulting from the features of this claim is that at least one surface section of the sintered component can be coated with the lubricating varnish in a simple operation and a predefined location is already formed by this application, which for interaction with further surface abrasion. cut another component is provided. As a result, additional operations for the manufacture and assembly of bearings or the like can be eliminated, saving time and money.
  • the two provided for cooperation surface portions are formed displaceable in their relative position to each other.
  • plain bearings can be formed in a simple manner, which can be realized without high additional mechanical complexity and additional bearing parts.
  • the applied lubricating lacquer during the mutual relative displacement achieves noise insulation and thus a reduction in the noise level in systems or machines.
  • the compressive force acting between the cylinder-shaped lateral surfaces of the two surface portions is aligned radially or the pressure force acting between the two surface portions axially to this, whereby a defined direction of force is predetermined and so an equal moderate load transfer occurs between the two interacting surface sections.
  • the coated surface portion forms at least tooth flanks of a gear.
  • the further component of the powder or the powder mixture of metallic and optionally contained therein disguisemetall- metallic components and is prepared by pressing this powder or the powder mixture and subsequent sintering.
  • the running properties and smoothness of the components moving against one another can be improved in addition.
  • the lubricating varnish may have a layer thickness selected from a range with a lower limit of 5 .mu.m and an upper limit of 30 .mu.m or a lower limit of 10 .mu.m and an upper limit of 20 .mu.m or ., A lower limit of 6 microns and an upper limit of 15 microns, whereby the device to the particular application, such as Axial or radial bearings, rotor or stator in VVT systems, gears, can be adjusted and thus in the long term reliably seized, consistent properties of the component, a corresponding cost optimization can be achieved.
  • the layer thickness of the lubricating varnish on a layer accuracy with a lower limit of ⁇ 3 microns and an upper limit of ⁇ 5 microns whereby with simple production engineering measures, namely the application of a lubricating varnish on the sintered component, a high degree of uniformity of the component surface can be achieved, and thus gaps, eg can be reduced with bearing elements or gears (backlash).
  • At least one of the components at least partially in the surface portion to be coated has pores, which at least partially fills the lubricating varnish.
  • These pores may according to the developments of claims 18 to 20 have an average diameter selected from a range with a lower limit of 5 microns and an upper limit of 150 microns, or selected from a range with a lower limit of 10 microns and an upper limit of 100 ⁇ m, or selected from a range with a lower limit of 30 ⁇ m and an upper limit of 70 ⁇ m. It can thus improve the adhesion of the bonded coating on the sinter surface by a kind of "claw effect" occurs, so that these components can be subjected to a higher load.
  • the lubricating varnish contains as the main component at least one thermoplastic resin, since such resins are easy to process and also provide a corresponding ability to store other auxiliaries or additives or even fillers and thus the Functionality of the device can be further varied by suitable choice of these additional substances.
  • the at least one thermoplastic resin is selected from a group comprising polyimides, in particular aromatic, polyamidimides, in particular aromatic, polyaryletherimides, optionally modified with isocyanates, phenolic resins, polyaryletherketones, polyaryletherketones, polyamides ,
  • PA 6 or PA 6.6 in particular aromatic, polyoxymethylene, epoxy resins, polytetrafluoroethylene, fluorine-containing resins, such as Polyfluoroalkoxy-polytetrafluoroethylene copolymers, ethylene-tetrafluoroethylene, fluorinated ethylene-propylene copolymers, polyvinylidene difluoride, polyethylene sulfides, polyvinyl fluoride, allylene sulfide, polytriazo-pyromellithimides, polyester imides, polyaryl sulfides, polyvinyl sulfides, polysulfones, polyary
  • the resin content of the lubricating varnish may be selected from a range with a lower limit of 50 wt .-% and an upper limit of 95 wt .-% or from a range with a lower limit of 60 Wt .-% and an upper limit of 85 wt .-% or from a range with a lower limit of 70 wt .-% and an upper limit of 75 wt .-% whereby the properties of the device in terms of reduced friction in the training bearing element and / or in terms of sealing function, can be reduced to the extent of tolerances gap of mutually movable sintered parts by targeted entry of the coated surfaces that can be dispensed with additional sealing and adjusting elements and / or in view of the damping function , in the force-transmitting contact surfaces by the lubricating coating a reduced transmission of structure-borne noise by an impedance jump ze can be improved.
  • the lubricating varnish may contain at least one additive selected from a group comprising lubricants such as MoS 2 , h-BN, WS 2 , graphite, WS 2 , polytetrafluoroethylene, Pb, Pb-Sn alloys, CF 2 , PbF 2 , hard materials, such as CrO 3 , Fe 3 O 4 , PbO, ZnO, CdO, Al 2 O 3 , SiC, Si 3 N 4 , SiO 2 , Si 3 N 4 , clay, talc, TiO 2 , Mullite, CaC 2 , Zn, AlN, Fe 3 P, Fe 2 B 5 Ni 2 B, FeB, metal sulfides such as ZnS, Ag 2 S 5 CuS, FeS, FeS 2 , Sb 2 S 3 , PbS 5 Bi 2 S 3 , CdS, fibers, in particular inorganic, such as glass, carbon, potassium titanate, whiskers, for example
  • lubricants such as
  • mixtures of a plurality of additives for example at least one lubricant and / or at least one hard material and / or at least one fibrous additive with at least one lubricant and / or at least one hard material and / or at least one fibrous additive , It will thus On the one hand achieved a reduction in friction and on the other hand, an increase in the mechanical strength of the bonded coating.
  • the proportion of the additive or additives (s) can be selected on the lubricating varnish from a range with a lower limit of 5 wt .-% and an upper limit of 30 wt .-% or from a range with a lower limit of 10% by weight and an upper limit of 25% by weight or of an area with a lower limit of 15% by weight and an upper limit of 20% by weight, which in turn makes them universally applicable of the component adapted to the respective application purpose can be achieved.
  • the at least one additive can according to claims 30 to 32 have a particle size selected from a range with a lower limit of 0.5 microns and an upper limit of 20 microns and from a range with a lower limit of 2 microns and an upper Limit of 10 microns or from a range with a lower limit of 3 microns and an upper limit of 5 microns, on the one hand to influence the embedding of the additive and on the other hand its adhesion in the resin positive.
  • this size range a corresponding adaptation to the behavior of the other component, which is superficially in operative connection with the device to perform.
  • the anti-friction varnish or varnish layer may have a hardness according to Vickers, selected from a range with a lower limit of 20 HV and an upper limit of 45 HV, or a lower limit of 22 HV and an upper limit of 35 HV or a lower limit of 25 HV and an upper limit of 30 HV, whereby correspondingly improved sliding properties are achieved with sufficient fatigue strength of the bearing element.
  • the proportion of the polyimide resin, in particular of the poryimidamide resin, on the anti-friction varnish is selected from a range with a lower limit of 60% and an upper limit of 80%.
  • the proportion of the resin in the paint to be applied is selected from a range with a lower limit of 15% and an upper limit of 25%
  • the proportion of graphite is selected from a range with a lower limit of 5% and an upper limit of 15%.
  • the lubricating varnish can be applied directly to the sintered metal layer, i. that a bonding agent layer is no longer required, so that a corresponding cost advantage can be achieved in the manufacture of the component.
  • this bonded coating is not limited to special components, but according to current knowledge can be applied to any sintered metal.
  • the proportion of the polyimide resin again preferably based on polyimide resin with solvent, may be selected from a range with a lower limit of 65% and an upper limit of 75% and a lower limit of 67.5% and an upper limit of 72.5% or the proportion of the polyamide resin may be 70%.
  • the proportion of MoS 2 is selected from a range with a lower limit of 17% and an upper limit of 22% and a lower limit of 18.5% and an upper limit of 21.5% or that the proportion of MoS 2 is 20%.
  • the proportion of graphite selected from a range with a lower limit of 7% and an upper limit of 13% and an upper limit of 8.5% and an upper Limit of 11.5% or that the proportion of graphite is 10%.
  • the ratio of MoS 2 to graphite may, according to the embodiment of the invention according to claim 46, be selected from a range with a lower limit of 1.5: 1 and an upper limit of 4.5: 1.
  • the MoS 2 platelets have an average length selected from a range with a lower limit of 10 ⁇ m and an upper limit of 40 ⁇ m or a lower limit of 15 ⁇ m and an upper limit Limit of 35 ⁇ m or a lower limit of 18 ⁇ m and an upper limit of 25 ⁇ m and / or an average width selected from a range with a lower limit of 10 ⁇ m and an upper limit of 40 ⁇ m, or a lower limit of 15 ⁇ m and an upper limit of 35 ⁇ m, or a lower limit of 18 ⁇ m and an upper limit of 25 ⁇ m, and / or an average height selected from a range with a lower limit of 2 nm and an upper limit of 20 and a lower limit of 5 nm and an upper limit of 15 nm and a lower limit of 5 nm and an upper limit of 8 nm, respectively. It is also possible according to claim 50, that a graphite with a grain size, selected from a range with a
  • the surface of the anti-friction varnish has an arithmetic mean roughness Ra according to DIN EN ISO 4287 or ASME B 46.1, selected from a range with a lower one Limit of 0.2 ⁇ m and an upper limit of 1.5 ⁇ m and a lower limit of 0.5 ⁇ m and an upper limit of 1.0 ⁇ m and a lower limit of 0.8 ⁇ m and an upper limit of 0, respectively , 9 microns, or if according to further embodiments, the surface of the bonded coating has a maximum roughness profile height Rz according to DIN EN ISO 4287 or ASME B 46.1, selected from a range with a lower limit of 0.5 microns and an upper limit of 10 microns or a lower limit of 3 microns and an upper limit of 8 microns and a lower limit of 5 microns and an upper limit of 6 microns.
  • Ra arithmetic mean roughness Ra according to DIN EN ISO 4287 or ASME B 46.1
  • the object of the invention is, however, independently solved by a method for producing a component according to claim 57, characterized in that after sintering on at least one surface portion of the component, a bonded coating is applied, in particular by spraying or painting.
  • a method for producing a component according to claim 57 characterized in that after sintering on at least one surface portion of the component, a bonded coating is applied, in particular by spraying or painting.
  • the object of the invention can be achieved by a method according to claim 58 for the production of cooperating surface portions of components of a device, wherein at least on those of the two surface portions of that component from the powder or the powder mixture applied a bonded coating in a layer thickness is, which corresponds at least to the predeterminable by the tolerance fields gap, then the components are placed in their predetermined relative position to each other and subsequently the two surface sections as long as relocated relative to each other until the two surface sections are almost gap-free against each other to plant.
  • a component can be adapted to the respective application, such as, for example, or radial bearing, rotor or stator in VVT systems, gears, clutch parts, shift sleeves, synchronizer rings, to be adjusted. This can be achieved with long-term reliably seized, consistent properties of the component a corresponding cost optimization.
  • a further advantageous procedure is described in claim 59 or 60 or 61, in which the almost gap-free contact of the two surface sections to each other by carried out with respect to at least a surface portion relative displacement of components of the bonded coating or almost gap-free conditioning of the two cooperating surface sections together is carried out by an at least partially removal of components of the lubricating varnish on at least one of the surface sections or the almost gap-free system is made consistently over the mutually facing surface sections.
  • components of the same are either rearranged within the layer, or removed to a slight extent, by the special properties of the bonded coating. As a result, either no material is lost to the formation of the bearing by the abrasion or the removed material is spent in other areas, whereby a high quality and smoothness of the plain bearing can be achieved.
  • both interacting components are produced from the powder or the powder mixture.
  • the running properties and smoothness of the mutually moving components can additionally be improved.
  • an approach according to claim 63 is advantageous in which both surface portions of the components are coated with the lubricating varnish, whereby also in the region of the further component, a resistant bearing layer can be constructed and thus the mutual running behavior can be additionally improved.
  • a sufficiently strong bonded coating layer is present in total. Due to the mutual entry in the area of the cooperating surface sections, when applying the lubricating varnish layer on both sides a substantially improved running behavior with additional damping of the Noise emission can be achieved.
  • FIG. 1 shows a component comprising a plurality of components with at least one coating arranged thereon, in side view and greatly simplified schematic illustration;
  • FIG. 2 shows another component according to the known prior art, cut away in a view and simplified schematic illustration
  • FIG. 3 shows the component according to FIG. 2, but with at least one coating arranged thereon in the region of cooperating surface sections, cut into a view and simplified schematic representation;
  • 4 shows a further component with at least one coating arranged thereon, in diagrammatically simplified representation; 5 shows another component with at least one coating arranged thereon, in diagrammatically simplified representation.
  • FIG. 1 shows an exemplary embodiment of the arrangement of a coating 1 in the form of a bonded coating 2 on at least one component 3 by way of example, whereby this arrangement example represents only one of many possibilities.
  • This component 3 is designed as a molded part 4, which consists of a powder or a powder mixture of metallic and optionally contained therein, non-metallic components. exists and through. Pressing this powder or powder mixture and subsequent sintering is made.
  • the molded parts 4 produced as a component 3 are produced in a very high quality with respect to the dimensional accuracy, the surface finish and the material quality. The production of the component 3 from the powder or the powder mixture is not described here in detail, since this is well known from the prior art.
  • This formed as a molded part 4 component 3 may be formed for example by a gear, a toothed belt, a sprocket, a thrust washer, by rotatably mounted parts, which also perform only an oscillating motion and an axial and / or radial load.
  • parts of clutches such as coupling body, parts of jaw clutches, sliding sleeves, synchronizer rings, sintered housing or the like may be formed as a molded part 4 or component 3.
  • This component 3 is part of a gear arrangement 5 shown in this embodiment, which still comprises a plurality of components.
  • the component 3 is rotatably arranged on a cylindrical projection 6 of a shaft 7.
  • the component 3 forms an inner cylindrical outer surface 9 with respect to a longitudinal axis 8.
  • the arranged in the region of the longitudinal axis 8 approach 6 can also be referred to as a bearing pin 10, on which a further cylindrical lateral surface 11 is formed. This is aligned concentrically with the first lateral surface 9 of the component 3.
  • the lateral surface 11 of the bearing pin 10 serves for supporting support of the component 3, in particular its cylindrical lateral surface 9, as for rotating or pivoting rotation or movement about the longitudinal axis 8.
  • To form the bearings were previously own bearing parts, such as plain bearings or the like ., used to form the desired bearing point.
  • the cylindrical lateral surface 9 of the component 3 forms at least a portion of a first surface portion 12 and the other cylindrical surface 11 of the journal 10 at least partially a further surface portion 13 from.
  • one of the surface portions 12 of the component 3 for cooperation with at least a further surface portion 13 of a further component 14 is provided, wherein this further component 14 may be formed for example by the bearing pin 10.
  • a compressive force for example in the radial direction on the longitudinal axis 8, ie a radial force, is transmitted between them.
  • at least the surface section 12 of the component 3 is assigned the coating 1 described above in the form of the sliding lacquer 2, in particular applied thereon or connected thereto.
  • the two components 3, 14 together form, optionally with further components, a component which forms an independent structural unit for a complex installation, machine or the like.
  • the two surface sections 12, 13 provided for cooperation can be designed to be displaceable relative to each other in their relative position. This can be done by any kind of relative movement or adjustment of the cooperating surface portions 12, 13 of the components 3, 14.
  • a bearing point already forms with the further surface section 13 of the component 14.
  • the cylindrical lateral surface 9 of the component 3 is formed by a bore in the component 3 or molded part 4, wherein the further cylindrical lateral surface 11 forms a portion of a shaft or axis, such as the journal 10.
  • the bearing arrangement comprises at least one thrust washer 15 which, in cooperation with a shoulder 16 projecting radially beyond the bearing journal 10, serves to position the component 3 in the axial direction, ie in the direction of the longitudinal axis 8.
  • the thrust washer 15 has a breakthrough in a known manner and is of a fastening means 17, such as a screw or the like., Interspersed.
  • the coating 1 is shown in these areas only on the component 3 in exaggerated layer thickness and forms a bearing point with axial load direction - ie for receiving or supporting a Axialkrafit - from.
  • a layer thickness of the coating 1 may have a lower limit of 6 ⁇ m and an upper limit of 20 ⁇ m.
  • the layer accuracy of the bonded coating 2 should have a lower limit of + 3 ⁇ m and an upper limit of ⁇ 5 ⁇ m. This makes it possible to apply the lubricating varnish 2 in very close tolerances on one of the surface sections 12 and / or 13, which may already be formed without further reworking the bearing point.
  • the component 3 is sintered from the powder or the powder mixture to form a molded part 4, this has at least in the region of or to be coated surface portions 12, 13 not shown here pores.
  • the lubricating varnish 2 penetrates during the application of the same on the surface portion 12, 13 in the pores and fills them at least area wise.
  • a better superficial adhesion of the same to the surface portions 12, 13 to be coated is achieved after curing of the bonded coating 2, since in addition to the adhesion also a positive connection between the component to be coated 3, 14 in particular its Oberfi Stahlenab- sections 12, 13, and the Gleitlack 2 is formed.
  • the gear 21 is formed by the component 3, in particular the molded part 4 and can be in drive connection with a further gear shown only partially.
  • This further gear can in turn be formed by a separate component, in particular a molded part 22, which consists of the powder or the powder mixture of metallic and optionally contained therein, non-metallic components and is prepared by compression of this powder or powder mixture and subsequent sintering , If the gearwheel 7 is again formed by a sintered shaped part, then at least the tooth flanks 19 of the teeth 18 may be coated within the limits described above. As a result, an exact and especially clearance-free engagement between the force and thus the torque transmitting components is achieved in engagement with other gears not shown here 7 or racks, chains or the like.
  • a known design and arrangement of components 3, 21 is shown in the form of an actuator assembly 23, in which, for example, designed as a stator outer member 3 at its outer ring inside the direction of the longitudinal axis 8 projecting and distributed over the circumference Approaches 24 has.
  • an actuator assembly 23 in which, for example, designed as a stator outer member 3 at its outer ring inside the direction of the longitudinal axis 8 projecting and distributed over the circumference Approaches 24 has.
  • End portions of the lugs 24 is a recess 25 for receiving at least one sealing element 26 and optionally at least one adjusting element 27 is provided.
  • These components 3, 21 in turn form the component or a group of components, which may also include other components.
  • the further component 21 is arranged, which comprises a base body 28 in the region of the longitudinal axis 8. Starting from this, a plurality of protruding projections 29 on the side remote from the longitudinal axis 8 are arranged. These projections 29 engage in the remaining space between the attachment sets 24 of the component 3 and project up to the surface portion 12, which is formed by a plurality of cylindrical lateral surfaces 9.
  • each have a further recess 30 is provided, in which in turn at least one sealing element 26 and optionally at least one adjusting element 27 is inserted or arranged.
  • the main body 28 of the component 21 forms between the projections 29, the surface portions 13, which are formed by the cylindrical-shaped portions of the lateral surfaces 11.
  • this component 21 can also be referred to as a rotor, which can be displaced relative to the longitudinal axis 8 in the predeterminable limits due to the intermeshing of the lugs 24 and projections 29. is pivotable.
  • the arrangement and installation of the sealing elements 26 and optionally the adjusting elements 27 means here a higher cost due to increased components and their installation.
  • the adjusting assembly 23 is shown in modified form over that design in FIG. 2, wherein in turn for the same parts the same component designations or reference numerals as in FIG. 2 are used.
  • the arrangement of the individual sealing elements 26 or adjusting elements 27 is dispensed with here in this exemplary embodiment according to FIG. 3, wherein the coating 1 is applied to mutually facing or cooperating surface sections 12, 13 at least at one of these is applied in the form of lubricating varnish 2.
  • the relative adjustment between the components 3, 21 about the common axis 8 can be done by filling at least one of the individual chambers 31 with a pressure medium (not shown here), which has been introduced into chambers 31, which are shown larger here.
  • a pressure medium not shown here
  • the component 21 is pivoted relative to the here fixed member 3 about the longitudinal axis 8, whereby further chambers 32 on the first chambers 31 opposite side of the projection 29 are reduced in volume and so the pivoting movement takes place in enlarging chambers 31.
  • the feeding of the here to be filled chambers 31 via simpler lines 33, which are arranged in the base body 28 and are in communication with a pressure generator not shown here.
  • the base body 28 or component 21 can be displaced such that the chambers 31 are reduced in their volume and the further chambers 32 are increased in their volume between the individual lugs 24 or projections 29 become.
  • the return flow of the pressure medium from the chambers 31 via the lines 33 can be made to a supply unit or pressure unit, not shown. If a volume enlargement of the chambers 32 and, associated therewith, a displacement of the component 21 in the opposite direction to the displacement described above, further, not shown lines 33 may open into these chambers 32, whereby upon appropriate introduction of the pressure medium, the relative Adjustment of the component 21 relative to the component 3 in the opposite direction to the adjustment described above.
  • this further component 21 consists of the powder or the powder mixture of metallic and optionally contained therein, non-metallic components and by compression this powder or powder mixture and subsequent sintering is made.
  • the surface portions 12, 13 are formed so that they at least partially abut against each other almost gap-free. It is particularly preferred if the almost backlash-free installation takes place continuously over the mutually facing and interacting surface sections 12, 13. A particularly good sealing effect is achieved if the further surface section 13 of the further component 21 is coated with the bonded coating 2.
  • This virtually play or gap-free abutment of the two components 3, 21 on the mutually facing and cooperating surface portions 12, 13 can be achieved if at least one of the components 3, 21 is produced by sintering. Furthermore, the two surface sections 12, 13 are executed or manufactured in the predeterminable tolerance specifications or tolerance fields relative to one another. Since in the production of sintered components already high qualities in terms of tolerances can be achieved, a reworking of certain surface areas or surface sections is usually no longer necessary. Subsequently, on at least one of the two surface sections 12, 13 of that component 3, 21 which is made of the powder or powder mixture, the bonded coating 2 is applied to form the coating 1 in a layer thickness which is at least equal to or greater than the tolerances indicated. Tolerance fields predeterminable gap corresponds.
  • This application of the lubricating varnish 2 takes place in a position or position of the individual components 3, 21 which is still separated from one another, wherein subsequently the components 3, 21 are brought into their predeterminable or predetermined relative position relative to one another after the curing of the lubricating varnish 2. Subsequently, the two surface sections 12, 13 are displaced relative to each other until the two surface sections 12, 13 have been brought into abutment against each other almost without gaps.
  • tolerance-related gap dimensions of sintered parts that are movable relative to one another can be reduced to such an extent by targeted entry of the surface sections 12, 13 coated with the bonded coating 2 that additional sealing or adjusting elements can be dispensed with. Furthermore, the friction of these systems is generally reduced.
  • the arrangement of the recesses 25, 30 as well as the sealing elements 26 arranged therein and, if appropriate, the adjusting elements 27 can be dispensed with altogether.
  • FIG. 4 shows a further component 3 in the manner of a molded part 4, which forms a coupling body 34 in the present exemplary embodiment.
  • the same reference numerals or component designations are used for the same parts as in the preceding FIGS. 1 to 3.
  • the component 3 shown here such as the coupling body 34, is approximately annular in shape and has on its outer circumference projecting extensions 35 in the form of teeth for the positive connection or coupling with a component not shown here, such as a shift sleeve on.
  • These tooth-like projections 35 have approximately parallel to a longitudinal axis 36 extending tooth flanks 37, which are additionally aligned with respect to the extension 35 on the side facing away from the longitudinal axis 36 side facing each other to extend inclined.
  • These tooth flanks 37 or surfaces serve for engagement with the coupling part not shown in detail, such as a sliding sleeve, wherein these tooth flanks 37 each represent the surface portions 12, which can be provided with the coating 1, namely the lubricating varnish 2.
  • the coupling body 34 has on its disk-shaped body carrying the extensions 35 a tubular projection 38 which is tapered in the region of its outer circumference and forms on the longitudinal axis 36.
  • This approach 38 can also be referred to as cone part 39.
  • This conically extending peripheral surface of the cone part 39 or projection 38 also represents a surface portion 12, which with the coating I 5 in particular the bonded coating 2 may be provided. But it can also represent the end faces and optionally the inner surfaces of the projection 38 each have a surface portion 12, which may be provided with the coating 1.
  • the individual extensions 35 further have on the side facing the shoulder 38 roof-shaped toward each other toward the tooth flanks 37 widening aligned roof surfaces 40, which in turn surface sections 12 for applying the coating I 5 in particular the bonded coating 2, form.
  • the order of the coating 1 in the area of the roof surfaces 40 serves to improve the sliding properties of the sliding sleeve by friction reduction, whereby a simpler and safer coupling process is ensured.
  • the coating 1 on the tooth flanks 37 also improves the sliding properties in connection with the sliding sleeve, whereby additionally the engagement and disengagement is facilitated or improved.
  • the coating in the region of the peripheral surface of the conical part 39 brings a constant Reibieremat with it, whereby a seizure with the or the cooperating part is prevented.
  • FIG. 5 shows a further component 3 in the form of a synchronizer ring 41, again using the same reference numerals or component designations for the same parts as in the preceding FIGS. 1 to 4. Likewise, to avoid unnecessary repetition, reference is made to the detailed description in the preceding Figs.
  • This synchronizer ring 41 is tubular or annular and has in its center the longitudinal axis 36. At its outer periphery further extensions 42 are arranged, which are arranged spaced apart in the circumferential direction. These projections 42 in turn have roof surfaces 43, which form to be coated surface portions 12 for application of the coating 1, in particular of the lubricating varnish 2. At its inner periphery facing the longitudinal axis 36, the synchronizing ring 41 has a conical surface 44, which in turn constitutes a surface section 12 to be coated.
  • the coating 1 on the conical surface 44 serves to ensure a constant friction coefficient. form level and prevent seizure with the cooperating component, such as a sliding sleeve.
  • the application of the coating 1 to the roof surfaces 43 in turn serves to improve the friction properties with respect to the component or components interacting therewith, in particular the sliding sleeve.
  • the resin for the lubricating varnish may be present in at least one solvent, in particular an organic solvent such as xylene, whereby the processability can be facilitated.
  • the solvent content may be selected from a range with a lower limit of 40 wt .-% and an upper limit of 80 wt .-%, in particular with a lower limit of 50 wt .-% and an upper limit of 70 wt. %, preferably with a lower limit of 60% by weight and an upper limit of 65% by weight, based on the resin content, ie resin with solvent.
  • the dry resin content in particular of the polyamideimide resin, may be selected from a range having a lower limit of 20% by weight and an upper limit of 50% by weight, in particular a lower limit of 30% by weight and one upper limit of 40% by weight, preferably a lower limit of 35% by weight and an upper limit of 37.5% by weight.
  • a polymer layer 4 applied according to the invention can have, for example, a dry composition of 35% by weight of polyamideimide resin, 45% by weight of MoS 2 and 20% by weight of graphite or a dry composition which can be obtained from the stated value ranges for the individual ingredients of the polymer layer 4 calculated.
  • compositions of the lubricating varnish can relate to the "wet goods", so that, if appropriate, the ranges of the proportions of MoS 2 and graphite are to be adapted accordingly, ie to refer to the "dry product".

Landscapes

  • Lubricants (AREA)
  • Sliding-Contact Bearings (AREA)
  • Paints Or Removers (AREA)
  • Mechanical Operated Clutches (AREA)
  • Powder Metallurgy (AREA)
  • Gears, Cams (AREA)

Abstract

L'invention concerne un composant comprenant au moins un élément structurel (3), en particulier une pièce moulée (4) qui est fabriquée à partir d'une poudre ou d'un mélange de poudres provenant de composants métalliques et éventuellement non métalliques, et qui est produit par compression de cette poudre ou du mélange de poudres puis par frittage. Une partie de la surface (12) du composant (3), laquelle est utilisé pour agir avec une autre partie de la surface (13) d'un autre composant (14, 22) lors de l'application d'une force de pression agissant entre les deux parties des surfaces (12, 13), est recouverte par une laque lubrifiante (2). L'invention concerne, de plus, un procédé de production dudit composant (3, 14, 22) recouvert par la laque lubrifiante (2).
EP06804340.5A 2005-10-21 2006-10-10 Composant, en particulier une pièce moulée comprenant un revêtement Not-in-force EP1951443B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0172305A AT502630B1 (de) 2005-10-21 2005-10-21 Bauelement, insbesondere formteil, mit einer beschichtung
PCT/AT2006/000412 WO2007045003A1 (fr) 2005-10-21 2006-10-10 Composant, en particulier une piece moulee comprenant un revetement

Publications (2)

Publication Number Publication Date
EP1951443A1 true EP1951443A1 (fr) 2008-08-06
EP1951443B1 EP1951443B1 (fr) 2018-03-07

Family

ID=37680677

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06804340.5A Not-in-force EP1951443B1 (fr) 2005-10-21 2006-10-10 Composant, en particulier une pièce moulée comprenant un revêtement

Country Status (7)

Country Link
US (1) US20090311476A1 (fr)
EP (1) EP1951443B1 (fr)
JP (1) JP2009512820A (fr)
CN (1) CN101400453B (fr)
AT (1) AT502630B1 (fr)
CA (1) CA2666167A1 (fr)
WO (1) WO2007045003A1 (fr)

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CA2804158C (fr) * 2010-07-16 2017-10-10 Applied Nano Surfaces Sweden Ab Procede permettant d'obtenir une surface a faible coefficient de frottement
JP5416072B2 (ja) 2010-10-26 2014-02-12 株式会社日立産機システム スクリュー圧縮機
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CN104169599B (zh) * 2012-03-27 2015-08-26 千住金属工业株式会社 滑动构件
DE102012213972A1 (de) * 2012-08-07 2014-02-13 Schaeffler Technologies AG & Co. KG Riementrieb für ein Kraftfahrzeug
EP2913125B1 (fr) 2012-10-25 2018-10-03 Senju Metal Industry Co., Ltd Élément glissant et son procédé de production
WO2014125621A1 (fr) 2013-02-15 2014-08-21 千住金属工業株式会社 Élément coulissant et procédé de production pour élément coulissant
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KR101558380B1 (ko) * 2014-04-29 2015-10-07 현대자동차 주식회사 전동식 cvvt용 감속기구의 소음 저감유닛
EP3158022A4 (fr) 2014-06-23 2018-06-20 Southwire Company, LLC Compositions de revêtement super-hydrophobes résistant aux uv
ES2536585B1 (es) * 2015-03-18 2016-03-01 Sinterizados Y Metalurgia De Solsona, S.A. Cojinete deslizante
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Also Published As

Publication number Publication date
US20090311476A1 (en) 2009-12-17
CA2666167A1 (fr) 2007-04-26
CN101400453B (zh) 2012-11-28
WO2007045003A1 (fr) 2007-04-26
AT502630A1 (de) 2007-05-15
CN101400453A (zh) 2009-04-01
AT502630B1 (de) 2008-01-15
JP2009512820A (ja) 2009-03-26
EP1951443B1 (fr) 2018-03-07

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